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{
"AC-2": {
"name": "Account Management",
"attributes": {
"Justification to Select": "AC-2 is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. Office of the Secretary of Defense Insider Threat Mitigation, 12 July 2013 requires that tier 3 privileged user assignment be reviewed and validated on a quarterly basis.",
"Supplemental Guidance": "Elements of AC-2 are implemented at both the system and enterprise levels. If a system or the organization does not properly or fully implement account management, then the enterprise will not be able to control and monitor access by insiders to information systems, networks, and restricted information. Organizations should provide an inventory of all validated privileged Users and their authorized accesses and privileges to internal security and counterintelligence (CI) offices. This inventory shall be reviewed, validated and provided to personnel security, the Insider Threat Program, and CI Program on at least a quarterly basis for Tier 3 Privileged Users (e.g., Network and Domain Administrators) and on at least an annual basis for all other Privileged Users. The inventory will enable personnel security, Insider Threat, and CI specialists to review, track and evaluate any security or other reportable events by a Privileged User, such as a change in employment status, position, or organization. Any revocation or expansion of a Privileged User's access shall be reported immediately (within 1 business day) to personnel security, Insider Threat, and CI offices.",
"Parameter Value(s)": "The organization: a. Identifies and selects the following types of information system accounts to support organizational missions/business functions: at least: General User Accounts; Privileged User Accounts; Group Accounts; Temporary/Emergency Accounts; and System Accounts; b. Assigns account managers for information system accounts; c. Establishes conditions for group and role membership; d. Specifies authorized users of the information system, group and role membership, and access authorizations (i.e., privileges) and other attributes (as required) for each account; e. Requires approvals by ISSM or ISSO for requests to create information system accounts; f. Creates, enables, modifies, disables, and removes information system accounts in accordance with an existing process or by developing and implementing processes that include the requirement for each user to complete annual security awareness and privacy training, or the account shall be disabled whenever the specified conditions are not met; g. Monitors the use of information system accounts; h. Notifies account managers: 1. When accounts are no longer required; 2. When users are terminated or transferred; and 3. When individual information system usage or need-to-know changes; i. Authorizes access to the information system based on: 1. A valid access authorization; 2. Intended system usage; and 3. Other attributes as required by the organization or associated missions/business functions; j. Reviews accounts for compliance with account management requirements at least quarterly for Tier 3 privileged user accounts and annually for all other general user and privileged accounts. k. Establishes a process for reissuing shared/group account credentials (if deployed) when individuals are removed from the group.",
"Regulatory/Statutory Reference(s)": "Office of the Secretary of Defense Insider Threat Mitigation, 12 July 2013."
},
"page": 1
},
"AC-2(1)": {
"name": "Account Management | Automated System Account Management",
"attributes": {
"Justification to Select": "AC-2(1) is selected in the CNSSI 1253 baseline categorized Moderate or High for Confidentiality or Integrity. CNSSI 1015 requires that Departments and Agencies configure and implement audit management capabilities to effectively protect and defend NSS and they must implement, at a minimum, automated management and technical security capabilities for EAM, as outlined in Annex A of CNSSI 1015. CNSSI 1015 Annex A Element T2.4 directs Departments and Agencies automate procedures to enable or disable audit accounts.",
"Supplemental Guidance": "Typically, the automated mechanisms to support the management of information system accounts would be implemented by an organization using a standardized enterprise solution. If the organization does not implement automated system account management, then the disabling of accounts will be more difficult and take more time, creating an opportunity for an insider threat to compromise and misuse an account that should have been disabled.",
"Regulatory/Statutory Reference(s)": "CNSSI 1015 Annex A, Element T2.4."
},
"page": 3
},
"AC-2(2)": {
"name": "Account Management | Removal of Temporary / Emergency Accounts",
"attributes": {
"Justification to Select": "AC-2(2) is selected in the CNSSI 1253 baseline categorized Moderate or High for Confidentiality or Integrity and is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Parameter Value(s)": "The information system automatically disables temporary and emergency accounts after a period not to exceed 72 hours."
},
"page": 3
},
"AC-2(3)": {
"name": "Account Management | Disable Inactive Accounts",
"attributes": {
"Justification to Select": "AC-2(3) is selected in the CNSSI 1253 baseline categorized Moderate or High for Confidentiality or Integrity and is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Parameter Value(s)": "The information system automatically disables inactive accounts after a period of inactivity not to exceed: a. NIPRNet and SIPRNet: 35 days; b. TS Network: 90 days; c. Cross-Domain Systems: 30 days; or d. A shorter period if so specified in the applicable STIG(s)."
},
"page": 3
},
"AC-2(4)": {
"name": "Account Management | Automated Audit Actions",
"attributes": {
"Justification to Select": "AC-2(4) is selected in the CNSSI 1253 baseline for all systems, including systems that directly support the Insider Threat Program.",
"Supplemental Guidance": "If a system or the organization does not automatically audit account creation, modification, enabling, disabling, and removal actions and notify the designated individuals, then an insider threat could perform such actions without detection.",
"Parameter Value(s)": "The information system automatically audits account creation, modification, enabling, disabling, and removal actions, and notifies the System Administrator, Security Administrator, and ISSO."
},
"page": 4
},
"AC-2(5)": {
"name": "Account Management | Inactivity Logout",
"attributes": {
"Justification to Select": "AC-2(5) is selected in the CNSSI 1253 baseline for all systems, including systems that directly support the Insider Threat Program.",
"Supplemental Guidance": "If a user does not log out of the system at the end of the work period or when leaving the facility, then an insider threat could attempt to use the system to gain access using other authorized users’ accounts.",
"Parameter Value(s)": "The organization requires that users log out at the end of the user’s standard work period, or when the user leaves the physical premises, unless otherwise defined in formal organizational policy and, for cross-domain systems, when required CDS actions are complete."
},
"page": 4
},
"AC-2(7)": {
"name": "Account Management | Role Based Schemes",
"attributes": {
"Justification to Select": "AC-2(7) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. CNSSD 504 establishes the use of role based access controls (RBAC) for privileged users as a best practice.",
"Supplemental Guidance": "If a system or the organization does not properly manage privileged user accounts in accordance with AC-2(7), then an insider threat may be able to use privileges they should not have access to. Organizations will identify and implement procedures to enable or disable privileged user accounts. When an individual whose position and duties no longer require such access and privileges organizations shall confirm that accesses and privileges have been revoked. Organizations will provide an inventory of all validated privileged users and their authorized accesses and privileges to the Insider Threat Office. Any revocation or expansion of a Privileged User's access shall be reported immediately to the Insider Threat Office. A complete updated copy of the inventory shall be provided on at least a quarterly basis for Tier 3 Privileged Users (e.g., Network and Domain Administrators) and on at least an annual basis for all other Privileged Users. The inventory will enable Insider Threat specialists to review, track and evaluate any security or other reportable events by a Privileged User, such as a change in employment status, position, or organization.",
"Parameter Value(s)": "The organization: (a) Establishes and administers privileged user accounts in accordance with a role-based access scheme that organizes allowed information system access and privileges into roles; (b) Monitors privileged role assignments; and (c) Takes action to revoke and disable privileged role assignments and user accounts when privileged role assignments are no longer appropriate and all system administrator accounts that cannot currently enforce User Based Enforcement (UBE) will be configured to expire at least every 60 days.",
"Regulatory/Statutory Reference(s)": "CNSSD 504, Section A.2.b.; CNSSI 1015 Annex A, Elements M1.4 and T1.4; and Office of the Secretary of Defense Insider Threat Mitigation, 12 July 2013."
},
"page": 4
},
"AC-2(9)": {
"name": "Account Management | Restrictions on use of Shared Groups / Accounts",
"attributes": {
"Justification to Select": "AC-2(9) is selected in the CNSSI 1253 baseline for all systems and centrally managed group accounts. However, the Privacy Overlay prohibits the use of shared/group accounts for providing access to PII. Therefore, AC-2(9) would be deselected for systems that directly support the Insider Threat Program.",
"Supplemental Guidance": "The use of shared/group accounts (for systems other than those containing PII, including systems that directly support the Insider Threat Program) must be used in conjunction with prior unique authentication in order to mitigate the insider threat risk by associating the use of the shared/group account to an individual user. If a system or the organization does not require initial identification and authentication prior to the use of group accounts, then insider threat related activities executed using a group user account would not be traceable to a specific individual.",
"Parameter Value(s)": "The organization only permits the use of shared/group accounts that meet: (a) A unique authenticator for initial identification and authentication prior to using a group account, and (b) Use of group accounts/authenticators shall be explicitly authorized only by the AO (or formally designated representative) (c) Any decision to authorize shared/group accounts must be based on a compelling need with adequate justification with such details fully documented in the SSP."
},
"page": 5
},
"AC-2(10)": {
"name": "Account Management | Shared / Group Account Credential Termination",
"attributes": {
"Justification to Select": "AC-2(10) is selected in the CNSSI 1253 baseline for all systems.",
"Supplemental Guidance": "If a system or the organization does not terminate shared/group account credentials when members leave the group, then an insider threat may be able to use shared/group account credential privileges they should not have access to and any insider threat related activities executed using the group user account would not be traceable to the specific individual."
},
"page": 5
},
"AC-2(11)": {
"name": "Account Management | Usage Conditions",
"attributes": {
"Justification to Select": "AC-2(11) is selected in the CNSSI 1253 baseline categorized High for Confidentiality or Integrity, including systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": "An example of restricting usage to certain times of the day, days of the week, or specific duration of time is to restrict user access to only those hours an individual is assigned to work (e.g., “core hours”).",
"Parameter Value(s)": "The information system enforces expected circumstances and/or usage conditions (e.g., restricting usage to certain times of the day, days of the week, or specific duration of time) for all general and privileged user account."
},
"page": 5
},
"AC-2(12)": {
"name": "Account Management | Account Monitoring / Atypical Use",
"attributes": {
"Justification to Select": "AC-2(12) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": "AC-2(12) is implemented in a centralized manner for the enterprise. Such implementation would involve account monitoring by the Insider Threat Program through the use of systems that directly support the Insider Threat Program. If the organization does not monitor information system accounts for atypical use, then an insider threat could perform unusual or unauthorized activities without detection.",
"Parameter Value(s)": "The organization: (a) Monitors information system accounts for atypical use (e.g., unusual or unauthorized activities or conditions such as accessing information systems at certain times of the day and from locations that are not consistent with the normal usage patterns of individual users) to include account lock-outs, requests for user identification codes (userids) or passwords, loss of desktop control (remote administration), and unexplained loss of files.; and (b) Reports atypical usage of information system accounts to, at a minimum, the Security Administrator and ISSO."
},
"page": 6
},
"AC-2(13)": {
"name": "Account Management | Disable Accounts for High Risk Individuals",
"attributes": {
"Justification to Select": "AC-2(13) is selected in the CNSSI 1253 baseline for all systems and in the Privacy Overlay for all Privacy Impact Levels and PHI. AC-2(13) is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": "If a system or the organization does not promptly disable accounts for individuals posing a significant risk, then the user could use their account to exfiltrate information or cause damage to the system or network.",
"Parameter Value(s)": "The organization disables accounts of users posing a significant risk within 30 minutes of discovery of the risk. This control involves both enterprise and system level measures."
},
"page": 6
},
"AC-3": {
"name": "Access Enforcement",
"attributes": {
"Justification to Select": "AC-3 is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. The White House Memorandum, Near-term Measures to Reduce the Risk of High-Impact Unauthorized Disclosures, requires information sharing portals hosted on classified computer networks requires authentication.",
"Supplemental Guidance": "If a system does not enforce only approved authorizations, then an insider threat may gain access to systems, applications, or information without proper authorization."
},
"page": 6
},
"AC-3(2)": {
"name": "Access Enforcement | Dual Authorization",
"attributes": {
"Justification to Select": "Although AC-3(2) is not selected in the CNSSI 1253 baseline or an overlay, AC-3(2) is commonly implemented for all transfers of data from a classified computer network to removable media. White House Memorandum, Near-Term Measures to Reduce the Risk of High-Impact Unauthorized Disclosures, requires the implementation of two-stage controls (review and concurrence of a second person) for all transfers of data from a classified computer network to removable media, if the transfer is not part of an approved internal use process such as encrypted back-ups. Dual authorization, also referred to as two-person integrity, provides a means to minimize the insider threat.",
"Supplemental Guidance": "Two-stage controls shall be implemented for all transfers of data from a classified computer network to removable media or to a network of lower classification. If a system does not implement dual authorizations and two-stage controls for all transfers of data from a classified computer or network to removable media, then an insider threat could use removable media to exfiltrate classified and sensitive data.",
"Parameter Value(s)": "The information system enforces dual authorization for all transfers of data from a classified computer or network to removable media. A second person serving to meet the two-stage control requirement should be: assigned in writing; specifically trained in their responsibilities, and the review and transfer procedures; and knowledgeable of the information being transferred to make an informed decision of the appropriateness of the transfer.",
"Regulatory/Statutory Reference(s)": "White House Memo - Near-Term Measures to Reduce the Risk of High-Impact Unauthorized Disclosures, Section D-1."
},
"page": 7
},
"AC-3(4)": {
"name": "Access Enforcement | Discretionary Access Control",
"attributes": {
"Justification to Select": "AC-3(4) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": "If a system does not enforce discretionary access controls, then an insider threat may have access to classified and sensitive information for which they do not have a need-to-know.",
"Parameter Value(s)": "The information system enforces discretionary access control policy over defined subjects and objects where the policy specifies that a subject that has been granted access to information can do one or more of the following: (a) Pass the information to any other subjects or objects; (b) Grant its privileges to other subjects; (c) Change security attributes on subjects, objects, the information system, or the information system’s components; (d) Choose the security attributes to be associated with newly created or revised objects; or (e) Change the rules governing access control."
},
"page": 7
},
"AC-3(9)": {
"name": "Access Enforcement | Controlled Release",
"attributes": {
"Justification to Select": "AC-3(9) is selected in the Privacy Overlay for Privacy Impact Levels of Medium or High, and for PHI. AC-3(9) is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Parameter Value(s)": "The information system does not release information outside of the established system boundary unless: (a) The receiving organization, information system, or system component provides adequate protections for the information being released to it, such as security and privacy controls commensurate with the information sensitivity and classification (including PII Privacy Impact Level or PHI) being received; and (b) Technical safeguards (e.g., file type checking, content filtering), Appendix J of NIST SP 800- 53, and controls UL-1 and UL-2 are used to validate the appropriateness of the information designated for release."
},
"page": 8
},
"AC-3(10)": {
"name": "Access Enforcement | Audited Override of Access Control Mechanisms",
"attributes": {
"Justification to Select": "AC-3(10) is selected in the Privacy Overlay for all Privacy Impact Levels and is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Parameter Value(s)": "The organization employs an audited override of automated access control mechanisms under situations where access control mechanisms are overridden for information systems containing PII under the Privacy Act."
},
"page": 8
},
"AC-4": {
"name": "Information Flow Enforcement",
"attributes": {
"Justification to Select": "AC-4 is selected in the CNSSI 1253 baseline categorized Moderate or High for Confidentiality or Integrity, and in the Privacy Overlay for Privacy Impact Levels of Moderate or High, and for PHI. AC-4 is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Parameter Value(s)": "The information system enforces approved authorizations for controlling the flow of information within the system and between interconnected systems based on NIST 800- 47 and ICS 503-1."
},
"page": 8
},
"AC-4(4)": {
"name": "Information Flow Enforcement | Content Check Encrypted Information",
"attributes": {
"Justification to Select": "Although AC-4(4) is not selected in the CNSSI 1253 baseline or an overlay, AC-4(4) is commonly implemented to detect obfuscated data exfiltration by insider threat.",
"Supplemental Guidance": "If a system or the organization does not prevent encrypted information from bypassing content-checking mechanisms, then an insider threat could encrypt information prior to exfiltration as a potential method to bypass system and network boundary protections. Mitigations to this exfiltration methodology include system level inspection prior to encryption and transmission and/or network boundary encryption proxying that enable the communication to be decrypted, inspected, and re-encrypted or blocked at the boundary.",
"Parameter Value(s)": "The information system prevents encrypted information from bypassing content-checking mechanisms by decrypting the information, blocking the flow of the encrypted information, or terminating communications sessions attempting to pass encrypted information."
},
"page": 9
},
"AC-4(15)": {
"name": "Information Flow Enforcement | Detection of Unsanctioned Information",
"attributes": {
"Justification to Select": "AC-4(15) is selected in the CNSSI 1253 baseline in the Privacy Overlay for Privacy Impact Levels of Moderate or High and is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Parameter Value(s)": "The information system, when transferring information between different security domains, examines the information for the presence of any unsanctioned information and prohibits the transfer of such information in accordance with the security policy as approved by the AO and clearly documented in the System Security Plan."
},
"page": 9
},
"AC-4(17)": {
"name": "Information Flow Enforcement | Domain Authentication",
"attributes": {
"Justification to Select": "AC-4(17) is selected in the Privacy Overlay for Privacy Impact Levels of Moderate or High and is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Parameter Value(s)": "The information system uniquely identifies and authenticates source and destination points by the applicable organization, system, application, or individual for information transfer."
},
"page": 9
},
"AC-4(18)": {
"name": "Information Flow Enforcement | Security Attribute Binding",
"attributes": {
"Justification to Select": "AC-4(18) is selected in the Privacy Overlay for Privacy Impact Levels of Moderate or High, and for PHI, and is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Parameter Value(s)": "The information system binds security attributes to information using approved binding techniques to facilitate information flow policy enforcement."
},
"page": 9
},
"AC-5": {
"name": "Separation of Duties",
"attributes": {
"Justification to Select": "AC-5 is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": "Organizations should establish mechanisms for appropriate separation of duties among those Privilege Users with the highest accesses so that accesses and privileges are distributed across the user population and no such individuals are able to perform all privileged actions for sensitive systems or applications. As an example, Systems Administrators with extensive access shall not also server as ISSOs and/or DTOs. Organizations should institute separate administrator user accounts that tailor privileged access for particular users to the specific tasks at hand, to include separate roles for network or database administration from other sensitive functions such as cryptographic key management, hardware management, cross domain and removable media data transfer, system security management, or access to particularly sensitive information. If a system does not adequately separate privileged user roles, then an insider threat could perform malicious activity without oversight or detection.",
"Parameter Value(s)": "The organization: a. Separates at a minimum: (1) Mission functions and distinct information system support functions are divided among different individuals/roles; (2) Different individuals perform information system support functions (e.g., system management, systems programming, configuration management, quality assurance and testing, database management, network security); (3) Different administrator accounts for different roles, e.g., system administration, security administration, database administration; (4) Administration of access control functions from administration of audit functions; (5) At a minimum, system administrators shall not also perform security audit administration functions; and (6) Exceptions to the requirement for separation of duties must be documented in the SSP and approved by the AO or designee. b. Documents separation of duties of individuals; and c. Defines information system access authorizations to support separation of duties.",
"Regulatory/Statutory Reference(s)": "Office of the Secretary of Defense Insider Threat Mitigation, 12 July 2013; and White House Memo - Near-Term Measures to Reduce the Risk of High- Impact Unauthorized Disclosures, Section C-2."
},
"page": 10
},
"AC-6": {
"name": "Least Privilege",
"attributes": {
"Justification to Select": "AC-6 is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program.",
"Control Extension": "The organization shall increase separation of duties and the application of \"least privilege\" through automation of systems administration, use of two-stage controls, and other means to reduce the need for privileged users or for such users to exercise their privileges in manual ways.",
"Supplemental Guidance": "Organizations should restrict Information Technology (IT) Administrator (e.g., system administrators, help desk personnel, application administrators, etc.) access to information systems and data within the scope of what they are authorized to know and manage. Organizations should enforce \"least privileged\" access and limited or defined duration principles to limit Privileged User access and ensure users are only provided with the minimum access necessary to perform their authorized function. If a system does not properly implement least privilege, then an insider threat could misuse their privileged access beyond that for which they have been authorized.",
"Regulatory/Statutory Reference(s)": "CNSSD 504, Section A.2.b; White House Memo - Near- Term Measures to Reduce the Risk of High-Impact Unauthorized Disclosures, Section C-3; and Office of the Secretary of Defense Insider Threat Mitigation, 12 July 2013."
},
"page": 10
},
"AC-6(1)": {
"name": "Least Privilege | Authorize Access to Security Functions",
"attributes": {
"Justification to Select": "AC-6(1) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": "If a system does not explicitly authorize access to security functions, then an insider threat could misuse those functions to gain unauthorized access to the system or information.",
"Parameter Value(s)": "The organization explicitly authorizes access to all functions not publicly accessible (e.g., all security functions (deployed in hardware, software, and firmware) and all security-relevant information not publicly available)."
},
"page": 11
},
"AC-6(2)": {
"name": "Least Privilege | Non-privileged Access for Nonsecurity Functions",
"attributes": {
"Justification to Select": "AC-6(2) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": "The organization should establish both privileged and non-privileged accounts, with separate credentials, for users with privileged roles. Additionally, organizations should implement a policy that privileged user credentials be used only when performing privileged functions. If a system or the organization does not require privileged users use non-privileged accounts when performing non-privileged functions, then the privileged accounts would be more exposed to compromise by an insider threat.",
"Parameter Value(s)": "The organization requires that users of information system accounts, or roles, with access to any privileged functions (e.g., security functions such as establishing system accounts, configuring access authorizations (i.e., permissions, privileges), setting events to be audited, and setting intrusion detection parameters, system programming, system and security administration) or security relevant information, use non-privileged accounts or roles, when accessing nonsecurity functions."
},
"page": 11
},
"AC-6(3)": {
"name": "Least Privilege | Network Access to Privileged Commands",
"attributes": {
"Justification to Select": "AC-6(3) is selected in the CNSSI 1253 baseline categorized High for Confidentiality or Integrity and is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Parameter Value(s)": "The organization authorizes network access to privileged accounts and any privileged command (e.g., creation of a new chain of trust, deletion of audit logs, and access to removable media) or PII only for compelling operational needs necessary to accomplish the assigned responsibilities, as approved by the AO and documents the rationale for such access in the security plan for the information system."
},
"page": 12
},
"AC-6(5)": {
"name": "Least Privilege | Privileged Accounts",
"attributes": {
"Justification to Select": "AC-6(5) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": "If a system does not restrict privileged accounts to specific personnel or roles, then an insider threat could gain unauthorized access to privileged information/functions.",
"Parameter Value(s)": "The organization restricts privileged accounts on the information system to personnel or roles as defined in the System Security Plan."
},
"page": 12
},
"AC-6(7)": {
"name": "Least Privilege | Review of User Privileges",
"attributes": {
"Justification to Select": "AC-6(7) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": "If a system or the organization does not regularly review the privileges assigned to users and privileged accounts, then an insider threat could misuse privileges which are no longer valid for their role or assignment. Organizations should periodically conduct a review of all privileged user roles and minimize their number, scope of privilege (“least privilege”), and breadth of privilege (“separation of duties”). Separate roles for network or database administration from other sensitive functions, such as cryptographic key management, hardware management, cross domain and removable media data transfer, system security management, or access to particularly sensitive information. Organizations should also periodically conduct a review of all privileged users to ensure they have a continuing need for privileged capabilities or access, ensure they have current security clearances, and minimize any granted exceptions.",
"Parameter Value(s)": "The organization: (a) Reviews at a minimum, annually the privileges assigned to all roles and classes of users and, at a minimum, quarterly the privileges assigned to individuals with access to privileged accounts to validate the need for such privileges; and (b) Reassigns or removes privileges, if necessary, to correctly reflect organizational mission/business needs.",
"Regulatory/Statutory Reference(s)": "White House Memo - Near-Term Measures to Reduce the Risk of High-Impact Unauthorized Disclosures, Sections A-1 and C-1."
},
"page": 12
},
"AC-6(8)": {
"name": "Least Privilege | Privilege Levels for Code Execution",
"attributes": {
"Justification to Select": "AC-6(8) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": "If a system does not limit the execution of software to the level of the user, then an insider threat could circumvent system protections and elevate their privileges beyond what is authorized for them.",
"Parameter Value(s)": "The information system prevents all software from executing at higher privilege levels than users executing the software."
},
"page": 13
},
"AC-6(9)": {
"name": "Least Privilege | Auditing Use of Privileged Functions",
"attributes": {
"Justification to Select": "AC-6(9) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": "If a system does not audit the execution of privileged functions, then malicious actions executed by an insider threat would not be detected."
},
"page": 13
},
"AC-6(10)": {
"name": "Least Privilege | Prohibit Non-Privileged Users from Executing Privileged",
"attributes": {
"Justification to Select": "AC-6(10) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": "If a system does not prevent non-privileged users from executing privileged functions, then an insider threat could misuse the privileged functions to gain access to systems or functions for which they have not been authorized."
},
"page": 13
},
"AC-7": {
"name": "Unsuccessful Logon Attempts",
"attributes": {
"Justification to Select": "AC-7 is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": "If a system does not limit invalid logon attempts, then an insider threat could use a brute force exploit to gain access using an identity or credential for which they have not been issued.",
"Parameter Value(s)": "The information system: a. Enforces a limit of three consecutive invalid logon attempts by a user during a time period of 15 minutes, regardless of whether the login attempt occurs via a local or network connection; and b. Automatically locks an account/node for at least 15 minutes or until released by an administrator or through identity authentication software when the maximum number of unsuccessful attempts is exceeded, regardless of whether the login attempt occurs via a local or network connection."
},
"page": 13
},
"AC-8": {
"name": "System Use Notification",
"attributes": {
"Justification to Select": "AC-8 is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": "Information resources should display a standard banner that provides notice of, and obtains user consent to, the collection and monitoring of all user activities. Classified and unclassified network banners should inform users that their activity on the network is being monitored for lawful United States Government-authorized purposes and can result in criminal or administrative actions against the user. This standard banner shall be implemented in coordination with legal counsel as well as with civil liberties and privacy officials, to ensure legal, civil rights, civil liberties and privacy issues are appropriately addressed and should be approved by the Senior Official(s) in consultation with legal counsel. Additionally, standard mandatory notice and consent provisions will be included in all user agreements in accordance with applicable security controls and implementation procedures. If a system does not display a Notice and Consent Banner, then an organization might not be able to hold an insider threat accountable for their malicious activities.",
"Parameter Value(s)": "The information system: a. Displays to users a Standard Mandatory DoD Notice and Consent Banner before granting access to the system that provides privacy and security notices consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance and states that: 1. Users are accessing a U.S. Government information system; 2. Information system usage may be monitored, recorded, and subject to audit; 3. Unauthorized use of the information system is prohibited and subject to criminal and civil penalties; and 4. Use of the information system indicates consent to monitoring and recording; b. Retains the notification message or banner on the screen until users acknowledge the usage conditions and take explicit actions to log on to or further access the information system; and c. For publicly accessible systems: 1. Displays system use information containing the applicable information contained within a Standard Mandatory DoD Notice and Consent Banner, before granting further access; 2. Displays references, if any, to monitoring, recording, or auditing that are consistent with privacy accommodations for such systems that generally prohibit those activities; and 3. Includes a description of the authorized uses of the system.",
"Regulatory/Statutory Reference(s)": "CNSSI 1015; and White House Memo - National Insider Threat Policy, and Minimum Standards for Executive Branch Insider Threat Programs, Section H.4."
},
"page": 14
},
"AC-9": {
"name": "Previous Logon (Access) Notification",
"attributes": {
"Justification to Select": "Although AC-9 is not selected in the CNSSI 1253 baseline or an overlay, AC-9 supports detection of exploitation, compromise, or other unauthorized disclosure by an insider threat, and may also provide a degree of prevention to the extent that insiders are aware of this detection capability.",
"Supplemental Guidance": "This control should be implemented for logons managed by operating systems and applications. If a system does not notify the user of the date and time of the last logon, then misuse of their credentials by an insider threat might not be detected.",
"Regulatory/Statutory Reference(s)": "EO 13587, Section 2.1(b) and Section 5.2."
},
"page": 15
},
"AC-9(1)": {
"name": "Previous Logon (Access) Notification | Unsuccessful Logons",
"attributes": {
"Justification to Select": "Although AC-9(1) is not selected in the CNSSI 1253 baseline or an overlay, AC-9(1) supports detection of exploitation, compromise, or other unauthorized disclosure by an insider threat, and may also provide a degree of prevention to the extent that insiders are aware of this detection capability.",
"Supplemental Guidance": "This control enhancement should be implemented for logons managed by operating systems and applications. If a system does not notify the user of the number of unsuccessful logon/access attempts, then attempted misuse of their credentials by an insider threat might not be detected.",
"Regulatory/Statutory Reference(s)": "EO 13587, Section 2.1(b) and Section 5.2."
},
"page": 15
},
"AC-10": {
"name": "Concurrent Session Control",
"attributes": {
"Justification to Select": "Although AC-10 is not selected in the CNSSI 1253 baseline or an overlay, AC-10 limits the number of concurrent sessions, which helps to prevent malicious insiders from hijacking such sessions, and helps identify possible compromises of user authenticators.",
"Supplemental Guidance": "If a system does not limit the number of concurrent sessions, then an insider threat would have a greater opportunity to hijack a session without being detected.",
"Parameter Value(s)": "The information system limits the number of concurrent sessions for each all accounts and account types (both privileged and non-privileged) to a maximum of 3 sessions.",
"Regulatory/Statutory Reference(s)": "EO 13587, Section 2.1(b) and Section 5.2."
},
"page": 15
},
"AC-11": {
"name": "Session Lock",
"attributes": {
"Justification to Select": "AC-11 is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": "If a system does not initiate and maintain a session lock after a period of inactivity, then an insider threat would be able to use the abandoned session to gain access to systems and information for which they have not been authorized.",
"Parameter Value(s)": "The information system: a. Prevents further access to the system by initiating a session lock after a time period not to exceed 15 minutes of inactivity or upon receiving a request from a user; and b. Retains the session lock until the user reestablishes access using established identification and authentication procedures."
},
"page": 16
},
"AC-11(1)": {
"name": "Session Lock | Pattern-Hiding Displays",
"attributes": {
"Justification to Select": "AC-11(1) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": "If a system does not conceal information previously visible prior to the session lock, then an insider threat might be able to view information for which they have not been authorized."
},
"page": 16
},
"AC-12": {
"name": "Session Termination",
"attributes": {
"Justification to Select": "AC-12 is selected in the CNSSI 1253 baseline categorized Moderate or High for Confidentiality or Integrity and in the Privacy Overlay for PHI. AC-12 is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Parameter Value(s)": "The information system automatically terminates a user session after a maximum of 30 minutes of inactivity and other trigger events requiring session disconnect (user sessions include both privileged and functional user sessions)."
},
"page": 16
},
"AC-12(1)": {
"name": "Session Termination | User-Initiated Logouts / Message Displays",
"attributes": {
"Justification to Select": "AC-12(1) is selected in the CNSSI 1253 baseline for all systems and is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Parameter Value(s)": "The information system: (a) Provides a logout capability for user-initiated communications sessions whenever authentication is used to gain access to any and all information resources; and (b) Displays an explicit logout message to users indicating the reliable termination of authenticated communications sessions."
},
"page": 16
},
"AC-14": {
"name": "Permitted Actions Without Identification or Authentication",
"attributes": {
"Justification to Select": "AC-14 is selected in the CNSSI 1253 baseline for all systems and is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Parameter Value(s)": "The organization: a. Identifies no user actions that can be performed on the information system without identification or authentication consistent with organizational mission’s/business functions; and b. Documents and provides supporting rationale in the security plan for the information system, user actions not requiring identification or authentication."
},
"page": 17
},
"AC-16": {
"name": "Security Attributes",
"attributes": {
"Justification to Select": "AC-16 is selected in the CNSSI 1253 baseline for all systems and in the Privacy Overlay for all Privacy Impact Levels and PHI. AC-16 is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Parameter Value(s)": "The organization: a. Provides the means to associate security attributes having security attribute values with information in storage, in process, and/or in transmission; b. Ensures that the security attribute associations are made and retained with the information; c. Establishes the permitted security attributes for all information systems; and d. Determines the permitted values or ranges for each of the established security attributes."
},
"page": 17
},
"AC-16(3)": {
"name": "Security Attributes | Maintenance of Attribute Associations by Information",
"attributes": {
"Justification to Select": "AC-16(3) is selected in the Privacy Overlay for all Privacy Impact Levels and PHI and is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Parameter Value(s)": "The information system maintains the association and integrity of all security attributes to all subjects and objects."
},
"page": 17
},
"AC-16(6)": {
"name": "Security Attributes | Maintenance of Attribute Association by Organization",
"attributes": {
"Justification to Select": "AC-16(6) is selected in the CNSSI 1253 baseline for all systems and is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Parameter Value(s)": "The organization allows personnel to associate, and maintain the association of all security attributes with all subjects and objects in accordance with established security policies."
},
"page": 17
},
"AC-17": {
"name": "Remote Access",
"attributes": {
"Justification to Select": "AC-17 is selected in the CNSSI 1253 baseline for all systems and in the Privacy Overlay for all Privacy Impact Levels and PHI. AC-17 is therefore applicable to systems or activities that directly support the Insider Threat Program."
},
"page": 17
},
"AC-17(1)": {
"name": "Remote Access | Automated Monitoring / Control",
"attributes": {
"Justification to Select": "AC-17(1) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": "If a system does not monitor and control remote access methods, then an insider threat could use a remote session to perform malicious activities without detection. Automated methods can include employing tools or solutions that monitor the connection establishment, information flow, and resource accesses during remote access sessions to ensure ongoing compliance with remote access policies."
},
"page": 18
},
"AC-17(2)": {
"name": "Remote Access | Protection of Confidentiality / Integrity Using Encryption",
"attributes": {
"Justification to Select": "AC-17(2) is selected in the CNSSI 1253 baseline for all systems and in the Privacy Overlay for all Privacy Impact Levels and PHI. AC-17(2) is therefore applicable to systems or activities that directly support the Insider Threat Program."
},
"page": 18
},
"AC-17(3)": {
"name": "Remote Access | Managed Access Control Points",
"attributes": {
"Justification to Select": "AC-17(3) is selected in the CNSSI 1253 baseline for all systems and is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Parameter Value(s)": "The information system routes all remote accesses through a limited number of centrally managed network access control points."
},
"page": 18
},
"AC-17(4)": {
"name": "Remote Access | Privileged Commands / Access",
"attributes": {
"Justification to Select": "AC-17(4) is selected in the CNSSI 1253 baseline for all systems and is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Parameter Value(s)": "The organization: (a) Authorizes the execution of privileged commands and access to security-relevant information via remote access only for compelling operational (i.e., mission critical) needs; and (b) Documents the rationale for such access in the security plan for the information system."
},
"page": 18
},
"AC-17(6)": {
"name": "Remote Access | Protection of Information",
"attributes": {
"Justification to Select": "AC-17(6) is selected in the CNSSI 1253 baseline for all systems and is therefore applicable to systems or activities that directly support the Insider Threat Program."
},
"page": 18
},
"AC-17(9)": {
"name": "Remote Access | Disconnect / Disable Access",
"attributes": {
"Justification to Select": "AC-17(9) is selected in the CNSSI 1253 baseline for all systems and is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": "Disconnection methods can include pre-established processes, authorities, and permissions by the organization that are promptly implemented following initiation by a Security Administrator or other designated individuals.",
"Parameter Value(s)": "The organization provides the capability to expeditiously disconnect or disable remote access to the information system immediately upon execution by the Security Administrator."
},
"page": 18
},
"AC-18(4)": {
"name": "Wireless Access | Restrict Configurations by Users",
"attributes": {
"Justification to Select": "AC-18(4) is selected in the CNSSI 1253 baseline for all systems.",
"Supplemental Guidance": "If a system and the organization do not identify and explicitly authorize users allowed to configure wireless networking capabilities, then an insider threat could establish an unauthorized wireless connection as a pathway for exploitation. Configuration of wireless networking is performed and managed at both the individual information system and enterprise levels."
},
"page": 19
},
"AC-20": {
"name": "Use of External Information Systems",
"attributes": {
"Justification to Select": "AC-20 is selected in the CNSSI 1253 baseline for all systems and in the Privacy Overlay for all Privacy Impact Levels and PHI. AC-20 is therefore applicable to systems or activities that directly support the Insider Threat Program."
},
"page": 19
},
"AC-20(2)": {
"name": "Use of External Information Systems | Portable Storage Devices",
"attributes": {
"Justification to Select": "AC-20(2) is selected in the CNSSI 1253 baseline for all systems.",
"Supplemental Guidance": "If a system or the organization does not restrict the use of organization- controlled portable media on external information systems, then an insider threat could use the media as a potential access and exfiltration path to sensitive information contained on the device. Such use also establishes a path for malicious code to be introduced onto the storage device from the external information system. Restricting the external use of portable storage devices is a key mitigation measure to these vulnerabilities. Management of portable storage devices is performed at both the individual device and enterprise levels.",
"Parameter Value(s)": "The organization restricts the use of organization-controlled portable storage devices by authorized individuals on external information systems."
},
"page": 19
},
"AC-20(3)": {
"name": "Use of External Information Systems | Non-Organizationally Owned Systems /",
"attributes": {
"Justification to Select": "AC-20(3) is selected in the CNSSI 1253 baseline for all systems.",
"Supplemental Guidance": "If a system or the organization does not restrict the use of non- organizationally owned information systems, system components, or devices to process, store, or transmit organizational information, then an insider threat could use the systems, components and devices to access and exfiltrate sensitive information. Restricting the use of non- organizationally owned information systems, system components, or devices is a key mitigation measure to this vulnerability. Management of non-organizationally owned information systems, system components, or devices is performed at both the individual information system and enterprise levels.",
"Parameter Value(s)": "The organization restricts the use of non-organizationally owned information systems, system components, or devices to process, store, or transmit organizational information."
},
"page": 19
},
"AC-21": {
"name": "Information Sharing",
"attributes": {
"Justification to Select": "AC-21 is selected in the CNSSI 1253 baseline categorized Moderate or High for Confidentiality, and in the Privacy Overlay for all Privacy Impact Levels and PHI. AC- 21 is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Parameter Value(s)": "The organization: a. Facilitates information sharing by enabling authorized users to determine whether access authorizations assigned to the sharing partner match the access restrictions on the information for information sharing circumstances where user discretion is required (e.g., contract-sensitive information, proprietary information, personally identifiable information, classified information related to special access programs or compartments); and b. Employs automated mechanisms or manual processes to assist users in making information sharing/collaboration decisions."
},
"page": 20
},
"AC-22": {
"name": "Publicly Accessible Content",
"attributes": {
"Justification to Select": "AC-22 is selected in the CNSSI 1253 baseline for all systems for publicly accessible content. Although this control does not originally address non-publicly accessible content, the White House Memorandum, Near-term Measures to Reduce the Risk of High- Impact Unauthorized Disclosures, requires organizations to similarly conduct a review of all content contained on information sharing portals hosted on classified computer networks to identify particularly sensitive information that should not be shared with the full user population able to access it. Accordingly, the control’s coverage has been expanded by the following control extension to include protective reviews for particularly sensitive information on classified networks.",
"Control Extension and Parameter Value(s)": "The organization shall, quarterly or as new information is posted, review the content on information sharing portals hosted on classified computer networks for particularly sensitive information that should not be shared with the full user population able to access it, and remove such information, if discovered.",
"Supplemental Guidance": "If a system or the organization does not conduct a periodic review of all content contained on information sharing portals hosted on classified computer networks, then information may be inadvertently exposed to an insider threat without the proper access authorization. Reviews should be conducted at both the system and enterprise levels. Reports and other content containing particularly sensitive information shall be securely removed as soon as possible, or access otherwise terminate, until appropriate access control regimes are in place to strictly limit readership to those with a need to know. The respective chief security officer shall be notified when such content is identified for spill determination and response.",
"Regulatory/Statutory Reference(s)": "White House Memo - Near-Term Measures to Reduce the Risk of High-Impact Unauthorized Disclosures, Section B-2."
},
"page": 20
},
"AC-23": {
"name": "Data Mining Protection",
"attributes": {
"Justification to Select": "AC-23 is selected in the CNSSI 1253 baseline categorized Moderate or High for Confidentiality.",
"Supplemental Guidance": "If a system does not employ data mining protection and detection techniques, then an insider threat could use data mining to collect sensitive and classified information for the purpose of exfiltration.",
"Parameter Value(s)": "The organization employs data mining prevention and detection techniques for data storage objects (to include databases, database records, and database fields) to adequately detect and protect against data mining.",
"Regulatory/Statutory Reference(s)": "EO 13587, Section 2.1(b) and Section 5.2."
},
"page": 21
},
"AT-2": {
"name": "Security Awareness",
"attributes": {
"Justification to Select": "AT-2 is selected in the CNSSI 1253 baseline for all systems and is also selected in the Privacy Overlay at all Privacy Impact levels and PHI. AT-2 is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Parameter Value(s)": "The organization provides basic security awareness training to information system users (including managers, senior executives, and contractors): a. As part of initial training for new users; b. When required by information system changes; and c. At least annually, for as long as the user has access to the system, thereafter."
},
"page": 21
},
"AT-2(2)": {
"name": "Security Awareness | Insider Threat",
"attributes": {
"Justification to Select": "AT-2(2) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. The White House Memorandum, Minimum Standards for Executive Branch Insider Threat Programs, requires that organizations provide Insider Threat awareness training to all cleared employees.",
"Supplemental Guidance": "If the organization does not include security awareness training on recognizing and reporting potential indicators of insider threat, then users will not be able to recognize potential insider threats and report them to the appropriate authority. DoDD 5205.16 directs organizations to incorporate insider threat education and awareness into annual Counterintelligence Awareness and Reporting (CIAR) training in accordance with DoD CIAR Policies. White House Memo on Insider Threat directs: 1. Agency heads to ensure personnel assigned to the Insider Threat Program are fully trained in: Counterintelligence and security fundamentals to include applicable legal issues; Agency procedures for conducting insider threat response action(s); Applicable laws and regulations regarding the gathering, integration, retention, safeguarding, and use of records and data, including the consequences of misuse of such information; Applicable civil liberties and privacy laws, regulations, and policies; and Investigative referral requirements of Section 811 of the Intelligence. Authorization Act for FY 1995, as well as other policy or statutory requirements that require referrals to an internal entity, such as a security office or office of Inspector General, or external investigative entities such as the Federal Bureau of Investigation, the Department of Justice, or military investigative services. 2. Agency heads to ensure Insider Threat Programs provide insider threat awareness training, either in-person or computer-based, to all cleared employees within 30 days of initial employment, entry-on-duty (EOD), or following the granting of access to classified information, and annually thereafter. Training shall address current and potential threats in the work and personal environment, and shall include, at a minimum, the following topics: The importance of detecting potential insider threats by cleared employees and reporting suspected activity to insider threat personnel or other designated officials; Methodologies of adversaries to recruit trusted insiders and collect classified information; Indicators of insider threat behavior and procedure to report such behavior; and Counterintelligence and security reporting requirements, as applicable. 3. Agency heads to ensure Insider Threat Programs verify that all cleared employees have completed the required insider threat awareness training contained in these standards.",
"Regulatory/Statutory Reference(s)": "White House Memorandum, National Insider Threat Policy and Minimum Standards for Executive Branch Insider Threat Programs, Tab 2, Section I.1; DoDD 5205.16, Enclosure 2, Section 10.f; DoDD 5240.06; and DoDD-5240.02."
},
"page": 21
},
"AT-3": {
"name": "Role-Based Security Training",
"attributes": {
"Justification to Select": "AT-3 is selected in the CNSSI 1253 baseline for all systems and is also selected in the Privacy Overlay baseline at all Privacy Impact levels and PHI. AT-3 is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Parameter Value(s)": "The organization provides role-based security training to personnel with assigned security roles and responsibilities: a. Before authorizing access to the information system or performing assigned duties; b. When required by information system changes; and c. At least annually thereafter."
},
"page": 22
},
"AT-3(2)": {
"name": "Role-Based Security Training | Physical Security Controls",
"attributes": {
"Justification to Select": "AT-3(2) is selected in the CNSSI 1253 baseline for all systems.",
"Supplemental Guidance": "If the organization does not provide initial and periodic physical security training to security personnel, then an insider could bypass physical security controls and protections without detection. Training in physical control systems is typically conducted at the enterprise level.",
"Parameter Value(s)": "The organization provides all associated personnel and roles (e.g., Insider Threat Team employees and contractor support personnel) with initial and when sufficient changes are made to physical control systems or at least annual training in the employment and operation of physical security controls."
},
"page": 22
},
"AT-3(4)": {
"name": "Role-Based Security Training | Suspicious Communications and Anomalous",
"attributes": {
"Justification to Select": "AT-3(4) is selected in the CNSSI 1253 baseline for all systems.",
"Supplemental Guidance": "If the organization does not provide training to users of suspicious communications and anomalous system behavior, then an insider threat could use malicious code to gain access to systems or information for which they have not been authorized. Training in malicious code protection is typically conducted at the enterprise level.",
"Parameter Value(s)": "The organization provides training to its personnel on at least indicators of potentially malicious code in suspicious email to recognize suspicious communications and anomalous behavior in organizational information systems."
},
"page": 23
},
"AT-4": {
"name": "Security Training Records",
"attributes": {
"Justification to Select": "AT-4 is selected in the CNSSI 1253 baseline for all systems and in the Privacy Overlay for all Privacy Impact Levels and PHI. AT-4 is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Parameter Value(s)": "The organization: a. Documents and monitors individual information system security training activities including basic security awareness training and specific information system security training; and b. Retains individual training records for a minimum of five (5) years."
},
"page": 23
},
"AU-1": {
"name": "Audit and Accountability Policy and Procedures",
"attributes": {
"Justification to Select": "AU-1 is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": " If the organization does not establish, and periodically review and update, standardized enterprise policies and procedures for audit, then systems will not generate audit logs with the information required to detect insider threats and evaluate their activity. Organizations should define and implement automated policy to include roles, responsibilities, and accountability for Security Professionals’ (i.e., IAO, IAM, LE/CI) accessible audit accounts (Security Logs) and establish frequency of policy and procedure reviews/updates. UAM alerts may provide the basis for Focused Observation of an insider threat using information system containing sensitive or classified information. Each organization must develop policy on Focused Observation that addresses how and when Focused Observation can be conducted. Coordination of the policy and procedures is required due to the sensitivity of information collected for UAM and the potential need to employ information as evidence in legal proceedings. This will ensure that legal, civil liberties, and privacy protections are incorporated throughout the organization’s Insider Threat Program.",
"Parameter Value(s)": "The organization: a. Develops, documents, and disseminates to all personnel: 1. An audit and accountability policy that addresses purpose, scope, roles, responsibilities, management commitment, coordination among organizational entities, and compliance; and 2. Procedures to facilitate the implementation of the audit and accountability policy and associated audit and accountability controls; and b. Reviews and updates the current: 1. Audit and accountability policy at least annually; and 2. Audit and accountability procedures at least annually.",
"Regulatory/Statutory Reference(s)": "CNSSD 504, Sections B.2 and B.6; and CNSSI 1015, Annex A, Elements: M1.1, M1.2, T1.1, T1.2, T2.1, and T3.1."
},
"page": 23
},
"AU-2": {
"name": "Audit Events",
"attributes": {
"Justification to Select": "AU-2 is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": " If the organization does not specify the events for which systems are required to audit, then audit logs will not contain the information required to detect insider threats and evaluate their activity. Organizations should define and implement audit events that enable audit triggers and alerts to effectively audit the organization. Organizations should also define thresholds and priorities to support audit triggers and alerts. Note: This is a continuous process influenced by the network/user environment and changing priorities and threats. Systems shall have the ability to collect audit data through automated means and store the information securely. The information will be marked and handled at the appropriate classification and sensitivity levels. Organizations should ensure enterprise audit is applied to all cross domain transfers and use of removable storage devices. An observable occurrence within the information system or ICT supply chain infrastructure should be identified as an ICT supply chain auditable event, based on the organization’s system development lifecycle (SDLC) context and requirements. Auditable events may include software/hardware changes, failed attempts to access ICT supply chain infrastructure systems, or movement of source code. Information on such events should be captured by appropriate audit mechanisms and should be traceable and verifiable. Information captured may include type of event, date/time, length, and frequency of occurrence. Among other things, auditing may help detect misuse of the ICT supply chain infrastructure caused by Insider threat. Organizations must share, where lawful and appropriate, audit data to support Information Assurance, business analytics, personnel security, and other community audit needs related to information resources.",
"Parameter Value(s)": "The organization: a. Determines that the information system is capable of auditing the following events: 1. Authentication events: (1) Logons (Success/Failure) (2) Logoffs (Success) 2. File and Objects events: (1) Create (Success/Failure) (2) Access (Success/Failure) (3) Delete (Success/Failure) (4) Modify (Success/Failure) (5) Permission Modification (Success/Failure) (6) Ownership Modification (Success/Failure) 3. Writes/downloads to external devices/media (e.g., A-Drive, CD/DVD devices/printers) (Success/Failure) 4. Uploads from external devices (e.g., CD/DVD drives) (Success/Failure) 5. User and Group Management events: (1) User add, delete, modify, suspend, lock (Success/Failure) (2) Group/Role add, delete, modify (Success/Failure) 6. Use of Privileged/Special Rights events: (1) Security or audit policy changes (Success/Failure) (2) Configuration changes (Success/Failure) 7. Admin or root-level access (Success/Failure) 8. Privilege/Role escalation (Success/Failure) 9. Audit and log data accesses (Success/Failure) 10. System reboot, restart and shutdown (Success/Failure) 11. Print to a device (Success/Failure) 12. Print to a file (e.g., pdf format) (Success/Failure) 13. Application (e.g., Firefox, Internet Explorer, MS Office Suite, etc.) initialization (Success/Failure) 14. Export of information (Success/Failure) include (e.g., to CDRW, thumb drives, or remote systems) 15. Import of information (Success/Failure) include (e.g., from CDRW, thumb drives, or remote systems); b. Coordinates the security audit function with other organizational entities requiring audit- related information to enhance mutual support and to help guide the selection of auditable events; c. Provides a rationale for why the auditable events are deemed to be adequate to support after- the-fact investigations of security incidents; and d. Determines that the following events are to be audited within the information system: at every occurrence of all auditable events identified above;",
"Regulatory/Statutory Reference(s)": "White House Memo - Near-Term Measures to Reduce the Risk of High-Impact Unauthorized Disclosures; CNSSI 1015; NDAA for Fiscal Year 2017, Subtitle F, Section 951, paragraph (a)(4); CNSSI 1015, Section 2 and Annex A, Elements: M1.3, T1.3, T2.3, and T3.3; and NIST SP 800-161."
},
"page": 24
},
"AU-2(3)": {
"name": "Audit Events | Reviews and Updates",
"attributes": {
"Justification to Select": "AU-2(3) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": "If the organization does not periodically review and update the events for which systems are required to audit, then audit logs may not contain the information required to detect insider threats and evaluate their activity.",
"Parameter Value(s)": "The organization reviews and updates the audited events at least annually or as needed in response to situational awareness of threats and vulnerabilities."
},
"page": 26
},
"AU-3": {
"name": "Content of Audit Records",
"attributes": {
"Justification to Select": "AU-3 is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. AU-3 is necessary to ensure audit records are generated to support the Insider Threat Program.",
"Supplemental Guidance": "If the system does not generate audit records with the specified details, then audit logs will not contain the information required to detect insider threats and evaluate their activity."
},
"page": 26
},
"AU-3(1)": {
"name": "Content of Audit Records | Additional Audit Information",
"attributes": {
"Justification to Select": "AU-3(1) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. AU-3(1) is necessary to ensure audit records are generated with detailed information supporting the Insider Threat Program.",
"Supplemental Guidance": "Organizations should define, implement and capture sufficient auditable content to be established as part of the record in support of the use cases. Organizations should ensure audit data is attributable to a unique user and/or information resource. Organizations should implement capability to dynamically change content of auditable events to support enterprise analysis use cases and event triggers. If the system does not generate audit records with the specified details, then audit logs will not contain the information required to detect insider threats and evaluate their activity.",
"Parameter Value(s)": "The information system generates audit records containing the following additional information in the audit records, at a minimum, full text recording of privileged commands or the individual identities of group account users, and: a. Date and time of the event using the common network time (e.g., Network Time Protocol), b. Type of event (e.g., login, print, etc.), c. Identifier indicating the source/system of the event activity, d. Identifier indicating the identity of the subject or actor (e.g., UserId, ProcessId, etc.), e. Details identifying any objects or resources accessed or involved (a.k.a.., Resource List - e.g., flies (including location), document id, peripherals, storage devices, etc.), and f. Outcome (e.g., Success or Failure).",
"Regulatory/Statutory Reference(s)": "CNSSI 1015; and CNSSI 1015, Annex A, Elements: M1.5, M2.1, T1.5, T2.1, and T2.5."
},
"page": 26
},
"AU-3(2)": {
"name": "Content of Audit Records | Centralized Management of Planned Audit Record",
"attributes": {
"Justification to Select": "AU-3(2) is selected in the CNSSI 1253 baseline for systems categorized High for Confidentiality or Integrity, including systems or activities that directly support the Insider Threat Program. CNSSI 1015 requires that Departments and Agencies configure and implement audit management capabilities to effectively protect and defend information systems and they must implement, a capability to dynamically change content of auditable events to support enterprise analysis use cases and event triggers as outlined in CNSSI 1015, Annex A, Elements T2.1 and T2.5.",
"Supplemental Guidance": "Organizations should implement the capability to dynamically change auditable content to support enterprise analysis of use cases and event triggers. If a system or the organization does not provide centralized management and configuration of the content to be captured in audit records, then decentralized, manual, configuration would result in delays in collecting the information required to detect insider threats and evaluate their activity.",
"Parameter Value(s)": "The information system provides centralized management and configuration of the content to be captured in audit records generated by all information system, network, and CDS components.",
"Regulatory/Statutory Reference(s)": "CNSSI 1015, Annex A, Elements T2.1 and T2.5."
},
"page": 27
},
"AU-4": {
"name": "Audit Storage Capacity",
"attributes": {
"Justification to Select": "AU-4 is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. AU-4 is necessary to ensure audit records are retained and available to support the Insider Threat Program.",
"Supplemental Guidance": "If a system or the organization does not allocate sufficient audit record storage capacity, then audit records that are required to detect insider threats and evaluate their activity might not be retained. The organization should implement an enterprise-wide audit-data back-up storage solution.",
"Parameter Value(s)": "The organization allocates audit record storage capacity in accordance with the organization’s established audit procedures and configure auditing to reduce the likelihood of such capacity being exceeded. Storage allocation must be sufficient to maintain the required audit information, without adversely affecting the operational requirements of the information system. Audit data should not be overwritten under any circumstances.",
"Regulatory/Statutory Reference(s)": "CNSSI 1015, Annex A, Element T3.13."
},
"page": 27
},
"AU-4(1)": {
"name": "Audit Storage Capacity | Transfer to Alternate Storage",
"attributes": {
"Justification to Select": "AU-4(1) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. AU-4(1) is necessary to ensure audit records are retained and available to support the Insider Threat Program.",
"Supplemental Guidance": "If a system or the organization does not offload audit records onto a different system or media other than the system being audited, then an insider threat may alter or delete the audit record and thereby obfuscate their activity from detection and evaluation. Organizations should automate backup of data records to external system within an organizationally defined timeframe, not to exceed one day.",
"Parameter Value(s)": "The information system off-loads audit records in near real-time for interconnected systems and at least weekly for stand-alone systems onto a different system or media than the system being audited.",
"Regulatory/Statutory Reference(s)": "CNSSI 1015, Annex A, Element T2.13."
},
"page": 28
},
"AU-5": {
"name": "Response to Audit Processing Failures",
"attributes": {
"Justification to Select": "AU-5 is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. AU-5 is necessary to ensure audit records are continuously generated to support the Insider Threat Program.",
"Supplemental Guidance": "Organizations should define and implement a procedure for alert function in the event of loss-of-audit capability at the device, logger, storage capability, or analyst’s desktop and implement organizationally defined, automated remediation strategies to audit system failures. If a system does not detect and send alert(s) in the event of audit processing failure, then an insider threat could take advantage of the failure to perform malicious activities without detection.",
"Parameter Value(s)": "The information system: a. Alerts the System Administrator and/or Security Administrator, and Security Operations Center in the event of an audit processing failure; and b. Takes the following additional actions: (1) If possible, record the details of any audit processing failure in the audit record; and (2) Configure all Enterprise Servers, to include Domain Controllers and Exchange Servers, to overwrite the oldest audit files, if their audit logs reach capacity prior to being archived and thereby prevent these enterprise systems from crashing upon failure to audit.",
"Regulatory/Statutory Reference(s)": "CNSSI 1015, Annex A, Elements: M1.7, T1.7, and T3.7."
},
"page": 28
},
"AU-5(1)": {
"name": "Response to Audit Processing Failures | Audit Storage Capacity",
"attributes": {
"Justification to Select": "AU-5(1) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. AU-5(1) is necessary to ensure audit records are retained and available to support the Insider Threat Program.",
"Supplemental Guidance": "If a system does not provide a warning when the audit record storage is reaching capacity, then appropriate actions might not be taken in time to preclude loss of audit records, to include insider threat activity, when the maximum capacity is reached.",
"Parameter Value(s)": "The information system provides a warning to system administrators and IA personnel within a twelve-hour time period when allocated audit record storage volume reaches 75 percent of repository maximum audit record storage capacity."
},
"page": 29
},
"AU-5(2)": {
"name": "Response to Audit Processing Failures | Real-Time Alerts",
"attributes": {
"Justification to Select": "AU-5(2) is selected in the CNSSI 1253 baseline for systems categorized High for Availability, including systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": "Audit processing failures involving an inability to continue the collection or retention of audit records create an effective blind spot; appropriate personnel need to be made aware of such failures as soon as possible. If a system does not provide an alert when an audit failure occurs, then insider threat activity occurring during the failure might not be detected.",
"Parameter Value(s)": "The information system provides an alert in real-time (within 10 seconds) alert to system administrators, IA personnel (e.g., security administrator) and duty officer responsible for enterprise continuous monitoring when the following audit failure events occur (minimally but not limited to): auditing software/hardware errors; failures in the audit capturing mechanisms; an audit storage capacity being reached or exceeded; or an audit processing failure resulting in a degraded ability to collect or retain audit records.",
"Regulatory/Statutory Reference(s)": "EO 13587, Section 2.1(b) and Section 5.2 (a); White House Memorandum, National Insider Threat Policy and Minimum Standards for Executive Branch Insider Threat Programs, Tab 1, Section B.2(1), Tab 2, Section H; and CNSSI 1015, Annex A, Element T2.7."
},
"page": 29
},
"AU-6": {
"name": "Audit Review, Analysis, and Reporting",
"attributes": {
"Justification to Select": "AU-6 is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. AU-6 is necessary to detect potential insider threat activity.",
"Control Extension": " The information system alerts insider threat personnel monitoring user activity when specific anomalous activities occur that may be indicators of insider threat behavior.",
"Supplemental Guidance": "If a system or the organization does not review and analyze audit records and report their findings, then potential insider threat activity captured by the audit records would not be detected and evaluated. Reviewing and analyzing audit records support the detection of insider threat activities. Organizations should define how analysts receive and evaluate information to execute response action, define an organizational reporting frequency, and report findings at that organizationally defined frequency. Triggers generate data to facilitate the detection of potentially anomalous user activities indicative of insider threats. Triggers are a set of logic statements to be applied to a data stream or a specification of data to be collected when a specific activity or event occurs and thereby produces an alert when an anomalous incident or behavior occurs. Triggers are most effective if they are designed to highlight activities that reflect the habits, techniques, and tradecraft of insider threats. Triggers will often be specific to the mission activities of a given IC elements. Triggers should be developed and applied in a non- discriminatory manner, based on knowledge and experience of the habits, techniques, and trade- craft of persons who misuse access to IC information resources. Triggers should be capable of detecting insider threats proactively on an ongoing basis, ideally close to real-time. When a user activity meets the trigger threshold, an automated alert should prompt an assessment by authorized personnel, subject to rules and procedures defied by the responsible office. Organizations shall ensure triggers are appropriately tailored to the purpose of the collection, consistent with applicable law, policy and Constitutional safeguards. Organizations shall establish guidance for assessing supposed anomalous activity (i.e. triggered events) prior to undertaking any adverse action or determination with regard to the system user. Each organization must implement a comprehensive detection program within their capabilities by using a combination of triggers. Each organization should develop and maintain current triggers that reflect the unique environment of the individual organization. The organization should employ the following process to select triggers for implementation: a. Complete a periodic inventory of all information, files, and systems owned by the organization, then determine which ones are most at risk to insider threats. b. Identify and prioritize targets within NSS to which authorized users have access. c. Identify the potential insider threat behaviors and prioritize based on risks; Table 1 lists 11 categories of user behaviors to consider. d. Identify the data required to evaluate the potential insider threat behavior and select and define triggers that will generate the required data. The following events or indicators are recommended for consideration because they have proven to be effective indications of anomalous behavior: Account Change Authentication Failure/Anomaly Baseline Anomaly Excessive Activity Evidence Tampering Exfiltration Malware Network Traffic Anomaly Privilege Violation System Configuration Change User Behavior Anomaly e. The Insider Threat Program Office of each organization must review and approve, in consultation with legal counsel, and civil liberties, and privacy officials, the insider threat triggers to be implemented. f. The trigger specification may include a threshold for a value, date/time, number of occurrences, or location. The threshold limits the generation of data to activities considered anomalous and thereby improves the value of the data. g. The data generated by triggers must be provided to the Insider Threat Program for storage, analysis, and [referral for] possible investigative action. h. Where appropriate, a referral should be made to the appropriate security and /or investigative authorities and reported in accordance with the requirements of EO 13462, as amended, President’s Intelligence Advisory Board and Intelligence Oversight board. i. Each organization must periodically evaluate the effectiveness of their triggers to facilitate the detection of anomalous user activities indicative of insider threats. This evaluation may cause organization to add, delete or modify triggers. The organization must add a trigger if additional data is required for effective analysis and it is not available from another source. Organization must modify triggers if the threshold needs to be modified or additional data attributes need to be collected.",
"Parameter Value(s)": "The organization: a. Reviews and analyzes information system audit records at least on a weekly basis or more frequently if required by an alarm or anomaly, or as directed by the Authorizing Official (AO)for indications of inappropriate or unusual activity (including any user having a number of concurrent sessions that are higher than normal for that user); and b. Reports findings to, at a minimum, the Security Administrator, ISSO and ISSM.",
"Regulatory/Statutory Reference(s)": "EO 13587, Section 2.1(b) and Section 5.2; White House Memorandum, National Insider Threat Policy and Minimum Standards for Executive Branch Insider Threat Programs, Tab 1, Section B.2(1) and Tab 2, Section H; CNSSI 1015; CNSSD 504, Sections B.2, B.9, B.10, and B.12; and CNSSI 1015, Annex A, Elements: M1.9, MI.10., and TI.10."
},
"page": 29
},
"AU-6(1)": {
"name": "Audit Review, Analysis, and Reporting | Process Integration",
"attributes": {
"Justification to Select": "AU-6(1) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. AU-6(1) is necessary to promptly detect and report potential insider threat activity.",
"Supplemental Guidance": "Organizations should implement an automated audit process for: Audit review Audit analysis Indication of anomalies, Reporting of unusual activities Reporting for events with selectable remediation criteria Reporting capabilities to support situational awareness and other organizationally defined defensive activities Generating Security Content Automation Protocol (SCAP)-compliant data If the organization does not employ automated mechanisms to integrate audit processes in support of incident analysis and response, then the efficient and effective analysis of, and response to, potential insider threat activity will be impeded.",
"Regulatory/Statutory Reference(s)": "CNSSI 1015, Annex A, Elements: M1.11. T2.2, T2.3, T2.10, and T3.10."
},
"page": 32
},
"AU-6(3)": {
"name": "Audit Review, Analysis, and Reporting | Correlate Audit Repositories",
"attributes": {
"Justification to Select": "AU-6(3) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. AU-6(3) is necessary to promptly detect and report potential insider threat activity.",
"Supplemental Guidance": "If the organization does not analyze and correlate audit records across different repositories to gain an organization-wide situational awareness, then low-level, widely- distributed, insider threat activity might not be detected. Organizations shall define event reduction and correlation methodology to support threat determination and collect and share audit data and maintain audit capabilities to support CI, security and other needs. Audit data collected shall be used to identify, proactively or retrospectively, electronic activity by personnel that may be indicative of an insider threat. Organizations shall implement audit data-monitoring tools for enterprise-wide situational status, event profiles, risk matrix, and dashboards (remediation). Organizations shall implement audit reduction and correlation at an organizationally defined location and provide correlated event alerts to a community-defined location.",
"Regulatory/Statutory Reference(s)": "NDAA for Fiscal Year 2017, Subtitle F, Section 951, paragraph (a)(4); and CNSSI 1015, Annex A, Elements: M1.8 T2.8, T3.8, and T3.9."
},
"page": 32
},
"AU-6(4)": {
"name": "Audit Review, Analysis, and Reporting | Central Review and Analysis",
"attributes": {
"Justification to Select": "AU-6(4) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. AU-6(4) and is necessary to promptly detect and report potential insider threat activity.",
"Supplemental Guidance": "Organizations should implement automated centralized management of audit record content, event reduction and correlation at a centralized location, and an audit review capability that generates SCAP-compliant data supporting automation. If the organization does not implement centralized audit record review and analysis, then low-level, widely- distributed, insider threat activity might not be detected.",
"Regulatory/Statutory Reference(s)": "White House Memorandum, National Insider Threat Policy and Minimum Standards for Executive Branch Insider Threat Programs, Tab 2, Section E.1; and CNSSI 1015, Annex A, Elements: T1.8, T2.11, and T3.5."
},
"page": 33
},
"AU-6(5)": {
"name": "Audit Review, Analysis, and Reporting | Integration / Scanning and Monitoring",
"attributes": {
"Justification to Select": "AU-6(5) is selected in the CNSSI 1253 baseline for systems categorized High for Confidentiality or Integrity, including systems or activities that directly support the Insider Threat Program. AU-6(5) is also commonly applied for systems categorized as Low or Moderate for Confidentiality or Integrity to detect insider threat activities at these lower categorization levels.",
"Supplemental Guidance": "Organizations should build and maintain an insider threat analytic and response capability to manually and/or electronically gather, integrate, review, assess, and respond to information derived from counterintelligence, security, information assurance, human resources, law enforcement, the monitoring of user activity, and other sources as necessary and appropriate. If the organization does not integrate analysis of audit records with other relevant (non-audit) information, then the full context of an insider threat’s logged activities would not be understood and those activities might be overlooked.",
"Parameter Value(s)": "The organization integrates analysis of audit records with analysis of counterintelligence, security, information assurance, human resources, law enforcement, the monitoring of user activity and other sources as necessary and appropriate to further enhance the ability to identify inappropriate or unusual activity.",
"Regulatory/Statutory Reference(s)": "EO 13587, Section 2.1(b) and Section 5.2 (a); White House Memorandum, National Insider Threat Policy and Minimum Standards for Executive Branch Insider Threat Programs, Tab 1, Section B.2(1), Tab 2, Section E.1; and NDAA for Fiscal Year 2017, Subtitle F, Section 951, paragraph (a)(4)."
},
"page": 33
},
"AU-6(6)": {
"name": "Audit Review, Analysis, and Reporting | Correlation with Physical Monitoring",
"attributes": {
"Justification to Select": "AU-6(6) is selected in the CNSSI 1253 baseline for systems categorized High for Confidentiality or Integrity, including systems or activities that directly support the Insider Threat Program. AU-6(6) is commonly applied for systems categorized as Low or Moderate for Confidentiality or Integrity to detect insider threat activities at these lower categorization levels.",
"Supplemental Guidance": "Audit data shall be analyzed in conjunction with other available data, to include facility access information, to support detection, mitigation or assessment of insider threats. If the organization does not integrate analysis of audit records with physical access information, then an insider threat could compromise another user’s account without detection.",
"Regulatory/Statutory Reference(s)": "EO 13587, Section 2.1(b) and Section 5.2 (a);; White House Memorandum, National Insider Threat Policy and Minimum Standards for Executive Branch Insider Threat Programs, Tab 1, Section B.2(1), Tab 2, Section H; and NDAA for Fiscal Year 2017, Subtitle F, Section 951, paragraph (a)(4)."
},
"page": 34
},
"AU-6(8)": {
"name": "Audit Review, Analysis, and Reporting | Full Text Analysis of Privileged",
"attributes": {
"Justification to Select": "Although AU-6(8) is not selected in the CNSSI 1253 baseline or an overlay, AU-6(8) is commonly implemented to comply with the White House Memorandum, National Insider Threat Policy and Minimum Standards for Executive Branch Insider Threat Programs, which requires agencies to monitor and audit user activity on classified networks. Insider Threat Programs have determined that full text analyses of all privileged user commands need to be performed to effectively execute task C-5 of the White House Memorandum, Near- term Measures to Reduce the Risk of High-Impact Unauthorized Disclosures.",
"Supplemental Guidance": "Organizations should establish an ongoing practice that Insider Threat Program personnel analyze audit data relating to the actions of privileged users.",
"Regulatory/Statutory Reference(s)": "EO 13587, Section 2.1(b) and Section 5.2 (a); White House Memorandum, National Insider Threat Policy and Minimum Standards for Executive Branch Insider Threat Programs, Tab 1, Section B.2(1), Tab 2, Section H; White House Memorandum, Near-term Measures to Reduce the Risk of High-Impact Unauthorized Disclosures, Task C-5; and NDAA for Fiscal Year 2017, Subtitle F, Section 951, paragraph (a)(4)."
},
"page": 34
},
"AU-6(9)": {
"name": "Audit Review, Analysis, and Reporting | Correlation with Information from",
"attributes": {
"Justification to Select": "Although AU-6(9) is not selected in the CNSSI 1253 baseline or an overlay, AU-6(9) is commonly implemented to comply with the White House Memorandum, National Insider Threat Policy and Minimum Standards for Executive Branch Insider Threat Programs, which requires agencies to build and maintain an insider threat analytic and response capability to manually and/or electronically gather, integrate, review, assess and respond to information derived from CI, Security, IA, HR, LE, the monitoring of user activity, and other sources as necessary and appropriate.",
"Supplemental Guidance": "Non-technical sources may include, but is not limited to: a. Foreign contact information; b. Foreign travel information; c. Personnel security information; and d. Financial disclosure information.",
"Regulatory/Statutory Reference(s)": "White House Memorandum, National Insider Threat Policy and Minimum Standards for Executive Branch Insider Threat Programs, Tab 1, Section B.2 (2, 4), Tab 2, Section E.1; and NDAA for Fiscal Year 2017, Subtitle F, Section 951, paragraph (a)(4)."
},
"page": 34
},
"AU-6(10)": {
"name": "Audit Review, Analysis, and Reporting | Audit Level Adjustment",
"attributes": {
"Justification to Select": "AU-6(10) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. AU-6(10) is necessary to detect and report potential insider threat activity in a dynamic environment.",
"Supplemental Guidance": "If a system or the organization does not dynamically adjust the level of audit review, analysis, and reporting when there is a change in insider threat risk, then an insider threat’s activity might not be detected."
},
"page": 35
},
"AU-7": {
"name": "Audit Reduction and Report Generation",
"attributes": {
"Justification to Select": "AU-7 is selected in the CNSSI 1253 baseline for systems categorized High for Confidentiality or Integrity, including systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": "If the organization does not provide an audit reduction and report generation capability that readily and uncompromisingly supports security incident investigation, then an insider threat’s activities might not be able to be properly assessed. Audit aggregation, reduction and report generation is typically performed at the enterprise level.",
"Regulatory/Statutory Reference(s)": "EO 13587, Section 2.1(b) and Section 5.2 (a); White House Memorandum, National Insider Threat Policy and Minimum Standards for Executive Branch Insider Threat Programs, Tab 1, Section B.2(1), Tab 2, Section H."
},
"page": 35
},
"AU-7(1)": {
"name": "Audit Reduction and Report Generation | Automatic Processing",
"attributes": {
"Justification to Select": "AU-7(1) is selected in the CNSSI 1253 baseline for systems categorized High for Confidentiality or Integrity, including systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": "If the organization does not provide the capability to fully process audit records for events of interest, then an inside threat’s activity might not be detected. Automatic processing of audit records for events of interest is typically performed at the enterprise level.",
"Parameter Value(s)": "The information system provides the capability to process audit records for events of interest based on at a minimum, date/time of events; user identifiers; IP addresses involved in the event; type of event; and event success/failure of all auditable events defined in AU-2 per occurrence.",
"Regulatory/Statutory Reference(s)": "EO 13587, Section 2.1(b) and Section 5.2 (a); White House Memorandum, National Insider Threat Policy and Minimum Standards for Executive Branch Insider Threat Programs, Tab 1, Section B.2(1), Tab 2, Section H."
},
"page": 35
},
"AU-7(2)": {
"name": "Audit Reduction and Report Generation | Automatic Sort and Search",
"attributes": {
"Justification to Select": "AU-7(2) is selected in the Privacy Overlay for Privacy Impact Levels of Moderate or High, and for PHI and is therefore applicable to systems or activities that directly support the Insider Threat Program. Although AU-7(2) is not selected in the CNSSI 1253 baseline, it is required to perform automatic searching of audit records and should therefore be applicable to all systems.",
"Supplemental Guidance": "If the organization does not provide the capability to sort and search audit records for events of interest based on their content, then the organization would be unable to fully analyze and detect an insider threat’s activities. Organizations should define and implement audit data-tagging methodology to enable metadata look-ups of audit content by authorized analysts. The ability to sort and search audit records for events of interest is typically implemented at the enterprise level.",
"Parameter Value(s)": "The information system provides the capability to sort and search audit records for events of interest based on the content of audit records fields including: date/time, user identifiers, IP addresses, type, and success/failure of all auditable events defined in AU-2 per occurrence.",
"Regulatory/Statutory Reference(s)": "EO 13587, Section 2.1(b) and Section 5.2 (a); White House Memorandum, National Insider Threat Policy and Minimum Standards for Executive Branch Insider Threat Programs, Tab 1, Section B.2(1), Tab 2, Section H; and CNSSI 1015, Annex A, Elements: M1.6 and T2.6."
},
"page": 36
},
"AU-8": {
"name": "Time Stamps",
"attributes": {
"Justification to Select": "AU-8 is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. AU-8 is necessary to correlate audit events across separate devices, information systems, and networks.",
"Supplemental Guidance": "If a system does not generate accurate universal time stamps for audit record entries, then an insider threat’s activities might not be correlated across systems or networks.",
"Parameter Value(s)": "The information system: a. Uses internal system clocks to generate time stamps for audit records; and b. Records time stamps for audit records that can be mapped to Coordinated Universal Time (UTC) or Greenwich Mean Time (GMT) and meets a one-second granularity of time measurement."
},
"page": 36
},
"AU-8(1)": {
"name": "Time Stamps | Synchronization with Authoritative Time Source",
"attributes": {
"Justification to Select": "AU-8(1) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. AU-8(1) is necessary to correlate audit events across separate devices, information systems, and networks.",
"Supplemental Guidance": "Organizations should define an authoritative source clock for synchronizing organizational internal information system clocks and implement the internal information system clock synchronization with the authoritative source for the collected audit data. If a system does not generate accurate authoritative time stamps for audit record entries, then an insider threat’s activities might not be correlated across systems or networks.",
"Parameter Value(s)": "The information system: (a) Compares the internal information system clocks at least every 12 hours with an organization defined authoritative time source that complies with the provisions of IC Standard 500-6; and (b) Synchronizes the internal system clocks to the authoritative time source when the time difference is greater than the organizationally defined granularity in AU-8 (one second).",
"Regulatory/Statutory Reference(s)": "CNSSI 1015, Annex A, Elements: M1.12, T1.12, and T2.12."
},
"page": 37
},
"AU-9": {
"name": "Protection of Audit Information",
"attributes": {
"Justification to Select": "AU-9 is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. AU-9 is necessary to ensure the integrity of the audit record.",
"Supplemental Guidance": "Audit data shall be protected from unauthorized access, modification, or destruction and shall be safeguarded in accordance with applicable law, policy, and department or agency regulations, at rest, in transit, and during presentation, to include appropriate limitations on access and use. Organizations should define the protection mechanisms for audit data, including frequency, cryptographic process, and accesses consistent with automation goals and ensure audit data relating to the actions of privileged users are stored beyond the reach of those users and that all accesses to the data are also audited. Organizations should also consolidate audit data to facilitate review and implement protection mechanisms to limit access to audit data records (from source or backup) to authorized users. Organizations should establish guidance to ensure against misuse of audit data. If a system or the organization does not protect audit information and audit tools from unauthorized access, modification, and deletion, then an insider threat might alter or delete those records or tools.",
"Regulatory/Statutory Reference(s)": "CNSSI 1015; White House Memo - Near-Term Measures to Reduce the Risk of High-Impact Unauthorized Disclosures, Section C-4; and CNSSI 1015, Annex A, Elements: M1.14 and T1.14."
},
"page": 37
},
"AU-9(2)": {
"name": "Protection of Audit Information | Audit Backup on Separate Physical Systems /",
"attributes": {
"Justification to Select": "AU-9(2) is selected in the CNSSI 1253 baseline categorized High for Availability and in the Privacy Overlay for all Privacy Impact Levels and PHI. AU-9(2) is therefore applicable to systems or activities that directly support the Insider Threat Program. CNSSI 1015 requires that Departments and Agencies define automated processes to achieve and ensure back-up of audit data, within an organizationally defined frequency, for all devices and implement backup of data records on an information system or media separate from the originating source as outlined in CNSSI 1015, Annex A, Elements M1.13and T1.13. Therefore, AU-9(2) is applicable to all systems.",
"Supplemental Guidance": "Organizations should define automated processes to achieve and ensure back-up of audit data, within an organizationally defined frequency, for all devices. If a system does not back up audit records periodically onto a physically different system or system component than the system or component being audited, then the historical record of an insider threat’s activity might not be recovered following a system failure.",
"Parameter Value(s)": "The information system backs up audit records at least weekly onto a physically different system or system component than the system or component being audited.",
"Regulatory/Statutory Reference(s)": "CNSSI 1015, Annex A, Elements: M1.13 and T1.13."
},
"page": 38
},
"AU-9(3)": {
"name": "Protection of Audit Information | Cryptographic Protection",
"attributes": {
"Justification to Select": "AU-9(3) is selected in the CNSSI 1253 baseline categorized High for Integrity and in the Privacy Overlay for Privacy Impact Levels of Moderate or High, and for PHI. AU-9(3) is therefore applicable to systems or activities that directly support the Insider Threat Program. CNSSD 504 requires that user activity data be protected from unauthorized access, modification, or destruction. The proper application of cryptographic mechanisms can protect the integrity and confidentiality of user activity data. Therefore, AU-9(3) is applicable to all systems.",
"Supplemental Guidance": "If a system or the organization does not implement cryptographic mechanisms to protect the integrity of audit information and audit tools, then an insider threat might alter or replace those records or tools without detection. User activity data must be protected from unauthorized access, modification, or destruction. User activity monitoring (UAM) activities and data are highly sensitive for the following reasons: a. Privacy Information: UAM data may contain private information such as social security numbers and passwords. b. Potential to Damage an Individual's Reputation: The fact that an individual is being monitored for insider threat behaviors is sensitive information. If divulged, it could impact a user's career or an ongoing investigation. c. Alert Malfeasance: UAM tactics, techniques and procedures, if generally known, would permit insiders to change their tradecraft or computer activity to avoid detection. Audit and user activity data must be protected commensurate with the highest level of sensitivity and classification of the aggregated information.",
"Regulatory/Statutory Reference(s)": "CNSSD 504, Section B.3."
},
"page": 38
},
"AU-9(4)": {
"name": "Protection of Audit Information | Access by Subset of Privileged Users",
"attributes": {
"Justification to Select": "AU-9(4) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. AU-9(4) is necessary to ensure the content and integrity of the audit record.",
"Control Extension": "The organization performs oversight of compliance by audit personnel and monitors audit personnel activities.",
"Supplemental Guidance": "If a system or the organization does not limit and specifically authorize management of audit functionality, then any insider threat with privileged user status could change the audit configuration such that their activity would be undetected. Organizations shall develop procedures for access audit data ensuring that access is restricted to personnel who require the information to perform their authorized functions, oversees compliance by audit personnel and monitors their activities. The organization shall provide training to all personnel authorized to access the data regarding all applicable laws and policies and the consequences of misuse of data for personal or other unauthorized purposes",
"Parameter Value(s)": "The organization authorizes access to management of audit functionality to only a limited subset of privileged users. Access shall be further restricted by distinguishing between privileged users with audit-related privileges and privileged users without audit-related privileges to improve audit integrity.",
"Regulatory/Statutory Reference(s)": "CNSSI 1015"
},
"page": 39
},
"AU-9(6)": {
"name": "Protection of Audit Information | Read Only Access",
"attributes": {
"Justification to Select": "Although AU-9(6) is not selected in the CNSSI 1253 baseline or an overlay, AU-9(6) is commonly implemented to restricting audit information access to read-only helps to prevent malicious Insiders from altering or removing audit records, and thereby supports the detection of insider threat activities.",
"Supplemental Guidance": "If a system or the organization does not implement read-only access to audit records by designated personnel, then an insider threat could access, and then alter or remove, the audit records.",
"Parameter Value(s)": "The organization authorizes read-only access to audit information to designated Audit Reviewers, Cyber Security Operations Teams, and other Program of Record Personnel who have been individually appointed and designated by name in advance in writing.",
"Regulatory/Statutory Reference(s)": "EO 13587, Section 2.1(b) and Section 5.2 (a); White House Memorandum, National Insider Threat Policy and Minimum Standards for Executive Branch Insider Threat Programs, Tab 1, Section B.2(1), Tab 2, Section H; and CNSSI 1015."
},
"page": 39
},
"AU-10": {
"name": "Non-Repudiation",
"attributes": {
"Justification to Select": "AU-10 is selected in the CNSSI 1253 baseline categorized Moderate or High for Integrity and in the Privacy Overlay for Privacy Impact Levels of Moderate or High, and for PHI. AU-10 is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Supplemental Guidance": "If a system does not fully and properly implement non-repudiation, then an insider threat might not be held accountable for malicious activity.",
"Parameter Value(s)": "The information system protects against an individual (or process acting on behalf of an individual) falsely denying having performed actions including, but not limited to creating information for CDS transfer, sending and receiving information via CDS transfer, approving information for CDS transfer, or the signatory of not having electronically signed a document.",
"Regulatory/Statutory Reference(s)": "EO 13587, Section 2.1(b) and Section 5.2 (a); White House Memorandum, National Insider Threat Policy and Minimum Standards for Executive Branch Insider Threat Programs, Tab 1, Section B.2(1), Tab 2, Section H."
},
"page": 40
},
"AU-10(1)": {
"name": "Non-Repudiation | Association of Identities",
"attributes": {
"Justification to Select": "AU-10(1) is selected in the Privacy Overlay for Privacy Impact Levels of Moderate or High, and for PHI. AU-10(1) is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Parameter Value(s)": "The information system: (a) Binds the identity of the information producer with the information to strength of binding levels appropriate to the classification or sensitivity of the information to provide a high level of assurance; and (b) Provides the means for authorized individuals to determine the identity of the producer of the information."
},
"page": 40
},
"AU-10(3)": {
"name": "Non-Repudiation | Chain of Custody",
"attributes": {
"Justification to Select": "Although AU-10(3) is not selected in the CNSSI 1253 baseline or an overlay, CNSSD 504 paragraph B.4 requires the heads of Departments and Agencies ensure the chain of custody of user activity data is preserved in coordination with the organizations legal counsel. Therefore, AU-10(3) is applicable for the Insider Threat Program",
"Control Extension": "The organization shall ensure the chain of custody of user activity data is preserved in coordination with the organization’s legal counsel.",
"Regulatory/Statutory Reference(s)": "CNSSD 504, Section B.4."
},
"page": 40
},
"AU-11": {
"name": "Audit Record Retention",
"attributes": {
"Justification to Select": "AU-11 is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. AU-11 is necessary to ensure audit records are maintained for long-term incident analysis and criminal investigations.",
"Supplemental Guidance": "Organizations should develop and implement a plan for retention of audit data for an organizationally defined period (pursuant to the Federal Records Act and in accordance with the applicable records control schedule) to support investigations and support detection of behavioral patterns and relationships with other insider threats. Organizations should also implement an automated capability for expiration of retained audit data. If the organization does not retain audit records for the specified period, then an insider threat’s long-term activity would not be available for correlation with recent activity and go undetected.",
"Parameter Value(s)": "The organization retains audit records for: a. Not less than 5-years for Sensitive Compartmented Information; b. Not less than 5-years for Sources and Methods Intelligence information; and c. Not less than 1-year for all other information (Unclassified through Collateral Top Secret) to provide support for after-the-fact investigations of security incidents and to meet regulatory and organizational information retention requirements.",
"Regulatory/Statutory Reference(s)": "CNSSD 504 paragraph B.11; CNSSI 1015; and CNSSI 1015, Annex A, Elements: M1.15, T1.15, and T2.15."
},
"page": 41
},
"AU-11(1)": {
"name": "Audit Record Retention | Long-Term Retrieval Capability",
"attributes": {
"Justification to Select": "AU-11(1) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. AU-11(1) is necessary to ensure audit records are readily accessible for long-term incident analysis and criminal investigations.",
"Supplemental Guidance": "If the organization does not employ a capability to access audit records for the duration of the required retention period, then long-term audit records generated by the information system, which include insider threat activity, might not be available to be retrieved for analysis.",
"Parameter Value(s)": "The organization employs a capability to access audit records for the duration of the required retention period to ensure that long-term audit records generated by the information system can be retrieved."
},
"page": 41
},
"AU-12": {
"name": "Audit Generation",
"attributes": {
"Justification to Select": "AU-12 is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. AU-12 is necessary to ensure audit records are generated with the necessary content for incident detection and analysis.",
"Control Extension and Parameter Value(s)": "The organization shall verify the ability to perform enterprise audit on information sharing portals hosted on classified computer networks quarterly and non-compliant portals shall be appropriately secured or removed.",
"Supplemental Guidance": "If a system does not properly generate audit records in accordance with the enterprise audit standards as applied by the audit administrators, then the information needed to fully assess insider threat activity might not be captured in the audit record. The list of audited events for specific components within an IT system is determined as part of the assessment process. The list of audited events should not be modified following authorization without approval of the Authorizing Official or his designated representative. Organizations that need to share audit information with other organizations must also generate sufficient audit data to satisfy, at a minimum, the mandatory elements of the ODNI Audit.XML specification. Following evaluation for audit compliancy (as specified in the Control Extension), non- compliant portals shall be appropriately secured (e.g., configured in accordance with the applicable STIG or other configuration guidance) or removed.",
"Parameter Value(s)": "The information system: a. Provides audit record generation capability for the auditable events defined in AU-2 a. at all information systems and network components; b. Allows only the Audit Administrator, as designated by the ISSM, to select which auditable events are to be audited by specific components of the information system; and c. Generates audit records for the events defined in AU-2 d. with the content defined in AU-3.",
"Regulatory/Statutory Reference(s)": "EO 13587, Section 2.1(b) and Section 5.2 (a); White House Memorandum, National Insider Threat Policy and Minimum Standards for Executive Branch Insider Threat Programs, Tab 1, Section B.2(1), Tab 2, Section H.1; CNSSI 1015; and White House Memo - Near-Term Measures to Reduce the Risk of High-Impact Unauthorized Disclosures, Section B-1."
},
"page": 42
},
"AU-12(1)": {
"name": "Audit Generation | System-Wide / Time-Correlated Audit Trail",
"attributes": {
"Justification to Select": "AU-12(1) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program.AU-12(1) is necessary to correlate audit events across separate devices, information systems, and networks.",
"Supplemental Guidance": "If a system and the organization do not compile audit records into a system-wide, time-correlated, audit trail, then low-level, widely-distributed, insider threat activity might not be detected.",
"Parameter Value(s)": "The information system compiles audit records from all information system components into a system-wide (logical or physical) audit trail that is time-correlated to within the time tracking tolerance defined in AU-8 (one second)."
},
"page": 42
},
"AU-12(3)": {
"name": "Audit Generation | Changes by Authorized Individuals",
"attributes": {
"Justification to Select": "AU-12(3) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. AU-12(3) is necessary to ensure audit records are generated with the necessary content for incident detection and analysis.",
"Supplemental Guidance": "If a system or the organization does not provide designated personnel the capability to change audit parameters, then the organization would not be able to promptly capture activity related to evolving insider threat methodology.",
"Parameter Value(s)": "The information system provides the capability for system administrators to change the auditing to be performed on all information system components that have the ability to perform audit logging functions based on a specific set of events to facilitate audit reduction, analysis, and reporting within near real-time."
},
"page": 43
},
"AU-14": {
"name": "Session Audit",
"attributes": {
"Justification to Select": "AU-14 is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. AU-14 is necessary to collect session detail for insider threat incident detection and analysis. The White House Memorandum, National Insider Threat Policy and Minimum Standards for Executive Branch Insider Threat Programs, requires the capability to capture audit information to detect and mitigate insider threat and requires agencies to monitor and audit user activity on classified and unclassified networks. This control directly supports the capture of user activities during sessions. Having the capability to generate audit records containing this content is considered a best practice for safeguarding against insider threat.",
"Supplemental Guidance": "If a system or the organization does not provide the ability to select a specific user session to monitor, then the organization would be unable to perform full contextual analysis of the activity of a specific insider threat. The capability to perform full session and user activity monitoring (e.g., monitoring keystrokes, tracking websites visited, and recording information and/or file transfers) is typically achieved through a combination of auditing and monitoring solutions (e.g., enterprise audit, user activity monitoring, network boundary/gateway monitoring, etc.). For host based capabilities, individual IT systems must install and/or configure this capability on all devices and verify its proper functionality with the centralized enterprise systems. The collection of user activity data will: a. Enable the organization to identify and evaluate anomalous activity involving NSS. b. Enable the organization to identify and assess misuse (witting or unwitting), and/or exploitation of NSS by insiders. c. Support authorized inquiries and investigations. CNSSD 504 requires all departments and agencies to have the following minimum user activity monitoring (UAM) capabilities to collect user activity data for all NSS: key stroke monitoring and full application content (e.g., email, chat, data import, data export), obtain screen captures, and perform file shadowing for all lawful purposes. UAM is the technical capability to observe and record the actions and activities of all users, at any time, on any device accessing NSI in order to detect insider threats and to support authorized investigations. UAM data must be attributable to a specific user. The organization should incorporate this data into an analysis system capable of identifying anomalous behavior that may provide indications of insider threat activity and support organization investigative requests. These capabilities must be used only in accordance with applicable law, policy and regulations. Each organization must consult with legal counsel before employing such capabilities. Each organization must develop internal processes and procedures for using these capabilities and the information collected in consultation with their respective legal counsel, civil liberties officials and privacy officials. Organizations should ensure Insider Threat Programs include, either internally or via agreement with external agencies, the technical capability, subject to appropriate approvals, to monitor user activity on all classified networks in order to detect activity indicative of insider threat behavior. When necessary, Service Level Agreements (SLA's) should be executed with all other agencies that operate or provide classified network connectivity or systems. SLAs should outline the capabilities the provider will employ to identify suspicious user behavior and how that information shall be reported to the subscriber's insider threat personnel. The organization’s providers of computers, networks and services must provide support to the subscriber to facilitate the implementation of UAM. The details of the support must be defined in a Service Level Agreement (SLA). The SLA must define how UAM capabilities will be maintained, updated, and how data will be collected and transmitted to the subscriber.",
"Regulatory/Statutory Reference(s)": "White House Memorandum, National Insider Threat Policy and Minimum Standards for Executive Branch Insider Threat Programs, Tab 1, Section B.2 (1), Tab 2, Section H.1; NDAA for Fiscal Year 2017, Subtitle F, Section 951, paragraph (a)(4); CNSSD 504, Annex B, Section 5, 7 and 8; Intelligence Community Enterprise Audit Conceptual Framework, Section 2.2.2; and CNSSI 1015."
},
"page": 43
},
"AU-14(1)": {
"name": "Session Audit | System Start-Up",
"attributes": {
"Justification to Select": "AU-14(1) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. AU-14(1) is necessary to collect session detail for insider threat incident detection and analysis.",
"Supplemental Guidance": "If a system or the organization does not initiate session audit upon start up, then insider threat activity performed before session audit initiation would not be available for analysis."
},
"page": 44
},
"AU-14(2)": {
"name": "Session Audit | Capture/Record and Log Content",
"attributes": {
"Justification to Select": "AU-14(2) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. AU-14(2) is necessary to collect session detail for insider threat incident detection and analysis.",
"Supplemental Guidance": "If a system or the organization does not provide the ability to select a specific user session to monitor and log, then the organization would be unable to perform full contextual analysis of the activity of a specific insider threat over time. Insider threat organizations should have the capability to collect key strokes and full application content (email, chat, imports, exports, etc.), obtain screen captures, and perform file shadowing for all lawful purposes, to include detecting unauthorized use or disclosure. Organizations should develop internal processes and procedures for using these specific capabilities and the information collected, in consultation with their respective legal counsel and civil liberties and privacy officials.",
"Regulatory/Statutory Reference(s)": "CNSSI 1015."
},
"page": 45
},
"AU-14(3)": {
"name": "Session Audit | Remote Viewing / Listening",
"attributes": {
"Justification to Select": "AU-14(3) is selected in the CNSSI 1253 baseline for all systems, including systems or activities that directly support the Insider Threat Program. AU-14(3) is necessary to centrally monitor and collect session detail for insider threat incident detection and analysis.",
"Supplemental Guidance": "If a system or the organization does not provide the ability to select a specific user session to remotely monitor, then the organization would be unable to perform full contextual analysis of the activity of a specific insider threat from a centralized monitoring capability."
},
"page": 45
},
"AU-16": {
"name": "Cross-Organizational Auditing",
"attributes": {
"Justification to Select": "Although AU-16 is not selected in the CNSSI 1253 baseline or an overlay, EO 13587 requires an organization to coordinate audit information across other internal and external organizations to support the detection of insider threat activities. Therefore, AU-16 is applicable for all organizations to support the Insider Threat Program.",
"Supplemental Guidance": "If the organization does not use audit exchange standards when sharing audit information with external organizations, then the external organizations may not be able to correlate the shared audit information. Organizations should define and implement inter-organizational methodology to report correlated audit alerts of malicious nature to cyber situational awareness authorities for identifying a government response. Sharing of audit data shall be consistent with access restrictions developed pursuant to AU-9. To the extent that audit data is attributable to a unique user, it may be shared with others, such sharing shall be limited to the least amount required to assess the threat or to address the concern for which the sharing is requested. Additionally, each organization shall determine if the collection, sharing, and use of such data requires a Privacy Act System of Records Notice (SORN).\" Organizations should use IC enterprise standard, IC Enterprise Audit Exchange Technical Specification (AUDIT.XML) to guide near-term sharing.",
"Parameter Value(s)": "The organization employs real-time sharing using the IC Enterprise Audit Exchange Technical Specification (Audit.XML) for coordinating audit records specified in DNI CNSSI 1015 among external organizations when audit information is transmitted across organizational boundaries.",
"Regulatory/Statutory Reference(s)": "EO 13587, Section 2.1(b) and Section 5.2 (a); White House Memorandum, National Insider Threat Policy and Minimum Standards for Executive Branch Insider Threat Programs, Tab 2, Section H.1; CNSSI 1015; and Intelligence Community Enterprise Audit Conceptual Framework, Section 2.2.3."
},
"page": 45
},
"AU-16(1)": {
"name": "Cross-Organizational Auditing | Identity Preservation",
"attributes": {
"Justification to Select": "Although AU-16(1) is not selected in the CNSSI 1253 baseline or an overlay, EO 13587 requires organizations preserve the identities of individuals in cross- organization audit trails to facilitate the detection of insider threats on all classified and unclassified networks. Therefore, AU-16(1) is applicable for all organizations to support the Insider Threat Program.",
"Supplemental Guidance": "If the organization does not preserve the identity of individuals in cross- organization audit trails, then related insider threat activity will not be correlated to the individual.",
"Regulatory/Statutory Reference(s)": "EO 13587, Section 2.1 (b) and Section 5.2 (a); and White House Memorandum, National Insider Threat Policy and Minimum Standards for Executive Branch Insider Threat Programs, Tab 2, H.1."
},
"page": 46
},
"AU-16(2)": {
"name": "Cross-Organizational Auditing | Sharing of Audit Information",
"attributes": {
"Justification to Select": "Although AU-16(2) is not selected in the CNSSI 1253 baseline, EO 13587 requires organizations provide cross-organizational audit information to facilitate the detection and mitigation of insider threats on all classified and unclassified networks. Therefore, AU-16(2) is applicable for all organizations to support the Insider Threat Program.",
"Supplemental Guidance": "If the organization does not share audit information across other internal and external organizations, then the organization would be unable to perform full contextual analysis of the activity of a specific insider threat. Organizations should establish or maintain a multi-disciplinary threat management capability and procedures to conduct and integrate the monitoring, timely review, analysis, reporting, and response to insider threats. Organizations should develop and implement sharing policies and procedures where by the organizations’ Insider Threat Program accesses, shares, and integrates information and data derived from offices across the organization, including CI, security, information assurance, and human resources offices. Organizations should share, where lawful and appropriate, any information identified during the course of an insider threat inquiry or investigation that may have an effect on information assurance, security, or other community audit needs. In any case involving information assurance, the information shall be shared, as appropriate, with the Authorizing Official or designee. Organizations should establish reporting guidelines for CI, Security, IA, HR, and other relevant organizational components to securely provide Insider Threat Program personnel, regular, timely, and, if possible, electronic access to the information necessary to identify, analyze, and resolve insider threat matters. Such access and information includes, but is not limited to, the following: a. Counterintelligence and Security. All relevant databases and files to include, but not limited to, personnel security files, polygraph examination reports, facility access records, security violation files, travel records, foreign contact reports, and financial disclosure filings b. Information Assurance. All relevant unclassified and classified network information generated by IA elements to include, but not limited to, personnel usernames and aliases, levels of network access, audit data, unauthorized use of removable media, print logs, and other data needed for clarification or resolution of an insider threat concern. c. Human Resources. All relevant HR databases and files to include, but not limited to, personnel files, payroll and voucher files, outside work and activities requests disciplinary files, and personal contact records, as may be necessary for resolving or clarifying insider threat matters. When data reveals an act or pattern of acts indicative of a crime that data should be provided to appropriate security and/or investigative authorities in accordance with applicable rules and procedures, and reported in accordance with the requirements of EO 13462, as amended, President’s Intelligence Advisory Board and Intelligence Oversight Board. Organizations should maintain the ability to share audit process results with relevant law enforcement, civilian and military personnel management, mental health, cybersecurity, security, and counterintelligence information with commanders (or civilian equivalents) component-wide. Organizations should share audit data regarding detected anomalies on information resources that potentially stem from an insider threat in a timely manner with all appropriate organizations responsible for insider threat detection (which may include the users' gaining or employing organization, or department or agency). Organizations should, establish a memorandum of agreement or memorandum of understanding on the handling, storage, or dissemination of IC information, with entities external to the organization, including Federal departments and agencies; state, local, and tribal governments; foreign governments or international organizations; or private sector organizations.",
"Parameter Value(s)": "The organization provides cross-organizational audit information to the organization’s Insider Threat Program and other external organizations (e.g., the respective user's gaining and employing organization) based on all formally established policy (to include CNSSI 1015) and other cross-organizational sharing agreements.",
"Regulatory/Statutory Reference(s)": "EO 13587, Section 2.1(b) and Section 5.2 (a); White House Memorandum, National Insider Threat Policy and Minimum Standards for Executive Branch Insider Threat Programs, Tab 2, H.1; and CNSSI 1015."
},
"page": 46
},
"CA-2": {
"name": "Security Assessments",
"attributes": {
"Justification to Select": "CA-2 is selected in the CNSSI 1253 baseline for all systems and is therefore applicable to systems or activities that directly support the Insider Threat Program.",
"Parameter Value(s)": "The organization: a. Develops a security assessment plan that describes the scope of the assessment including: 1. Security controls and control enhancements under assessment; 2. Assessment procedures to be used to determine security control effectiveness; and 3. Assessment environment, assessment team, and assessment roles and responsibilities; b. Assesses the security controls in the information system and its environment of operation as part of initial security authorization and at least annually thereafter, or as stipulated in the organization's continuous monitoring program, or in response to environmental or operational changes affecting the security of the system’s information to determine the extent to which the controls are implemented correctly, operating as intended, and producing the desired outcome with respect to meeting established security requirements; c. Produces a security assessment report that documents the results of the assessment; and d. Provides the results of the security control assessment to at a minimum, the Authorizing Official, ISSO and ISSM."
},
"page": 48
},
"CA-2(1)": {
"name": "Security Assessments | Independent Assessors",
"attributes": {
"Justification to Select": "CA-2(1) is selected in the CNSSI 1253 baseline for all systems.",
"Supplemental Guidance": "If the organization does not employ assessors with the necessary level of independence, then security controls that mitigate insider threats may not be properly implemented.",
"Parameter Value(s)": "The organization employs assessors or assessment teams with a level of independence that has been determined by the AO to be free from any perceived or actual conflicts of interest with regard to the development, operation, or management of the organization's information systems to conduct security control assessments."
},
"page": 48