CMMC Practice AU.3.050

Limit management of audit logging functionality to a subset of privileged users.

Source

CMMC Version 1.02, pg. 95

Bold Coast Security Guidance

You have likely implemented a SIEM by now, so first limit access to the SIEM to your designated audit manager. Network and server administrators should not have change access to that server. It would be allowable for them to read reports and logs for troubleshooting, but they cannot change settings or delete logs. Next, set up an alert which triggers when logs or logging settings are changed on the hosts. Server and network administrators will often have permissions which on the devices they manage which could affect logging.

Discussion From Source

DRAFT NIST SP 800-171 R2 Individuals with privileged access to a system and who are also the subject of an audit by that system, may affect the reliability of audit information by inhibiting audit logging activities or modifying audit records. This requirement specifies that privileged access be further defined between audit-related privileges and other privileges, thus limiting the users with audit-related privileges.

References