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AU.2.044
Content
Control Acronym
AU
Family
Audit And Accountability
CMMC Level
2
800-171 Control #
N/A
CMMC Description
Review audit logs.
CMMC Clarification
You should ensure that your organization reviews its audit logs. Logs should be checked regularly, organizations with small environments may be able to do this manually. The process of reviewing audit logs varies by organization. The intent of this practice is to become familiar with the logs being automatically created on the systems present in your organization and identify key events in the logs that might indicate malicious activity. Larger organizations may need automation to complete this task with success. Example You are the administrator for a company with a small IT environment. You know the importance of reviewing audit logs. Every week you log on to the Windows server as an admin user, open the Event Viewer and check for signs that the log files have been altered: Windows event ID 104 – Event Log was Cleared, event ID 1102 – Audit Log was Cleared), event ID 4719 – System audit policy was changed. Look for login and new user created events: Windows event IDs 4624 (failure) and 4625 (success)) and event IDs 4728, 4732 and 4756 – User added to Privileged Group.
800-171 Description
800-171 Discussion
N/A
Other Source Discussion
Reviewing audit logs is a common control in information security. Organizations have the flexibility to determine which logs and specific events to review. The level of audit log review should be determined based on a risk assessment or similar activity.
CIS Control References
CIS Controls v7.1 6.7
NIST 800-53 Control Ref.
NIST SP 800-53 Rev 4 AU-6
CMMC Derived
CMMC
NIST CSF Control References
NIST 800-171 References
Applicable FAR Clause
NIST CSF Control Reference
NIST CSF v1.1 PR.PT-1
CERT RMM Reference
CERT RMM v1.2 COMP:SG3.SP1
Modification of NIST 800-171B Reference
NIST 800-171B Reference
UK NCSCCyber Reference
AS ACSC Reference
Sub-Criterias
Assessment Sub-Criteria 1
AU.2.044.[a] the organization defines one or more policies and/or procedures for the event types to look for when information system audit records are reviewed and analyzed;
Assessment Sub-Criteria 2
AU.2.044.[b] the organization defines one or more policies and/or procedures for the frequency to review and analyze information system audit records for indications of organizationally defined events; and
Assessment Sub-Criteria 3
AU.2.044.[c] the organization reviews and analyzes information system audit records for indications of organizationally defined events with the organization-defined frequency.