NIST 800-171 3.3 Audit and Accountability
Audit and Accountability covers the logs: deciding what to record, tying every action to a person, alerting when logging fails, keeping clocks in step, and protecting the records so they can support an investigation.
9 requirementsup to 19 SPRS points6 can go on a CMMC POA&M
The 9 Audit and Accountability requirements
- 3.3.1 System Audit LogsAU.L2-3.3.1Create and retain system audit logs and records to the extent needed to enable the monitoring, analysis, investigation, and reporting of unlawful or unauthorized system activity.
- 3.3.2 User AccountabilityAU.L2-3.3.2Ensure that the actions of individual system users can be uniquely traced to those users, so they can be held accountable for their actions.
- 3.3.3 Review Logged EventsAU.L2-3.3.3Review and update logged events.
- 3.3.4 Audit Failure AlertsAU.L2-3.3.4Alert in the event of an audit logging process failure.
- 3.3.5 Audit CorrelationAU.L2-3.3.5Correlate audit record review, analysis, and reporting processes for investigation and response to indications of unlawful, unauthorized, suspicious, or unusual activity.
- 3.3.6 Audit ReductionAU.L2-3.3.6Provide audit record reduction and report generation to support on-demand analysis and reporting.
- 3.3.7 Authoritative TimeAU.L2-3.3.7Provide a system capability that compares and synchronizes internal system clocks with an authoritative source to generate time stamps for audit records.
- 3.3.8 Audit ProtectionAU.L2-3.3.8Protect audit information and audit logging tools from unauthorized access, modification, and deletion.
- 3.3.9 Audit ManagementAU.L2-3.3.9Limit management of audit logging functionality to a subset of privileged users.
Audit and Accountability: points and the CMMC POA&M
- Q-01
How many SPRS points can the Audit and Accountability family cost?
Up to 19 of the 313 points a score can lose: 2 worth 5 points, 1 worth 3 and 6 worth 1.
- Q-02
Which Audit and Accountability requirements can go on a CMMC POA&M?
6 of the 9: 3.3.3, 3.3.4, 3.3.6, 3.3.7, 3.3.8 and 3.3.9, worth 1 point each. The others are worth more than 1 point, which 32 CFR 170.21(a)(2)(ii) does not admit. The score must also be at least 88.
Know the family. Keep the evidence for every requirement in it.
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