Title

RHEL 9 must periodically flush audit records to disk to prevent the loss of audit records. (Cat II impact)

Discussion

If option "freq" is not set to a value that requires audit records being written to disk after a threshold number is reached, then audit records may be lost.

Check Content

Verify that audit system is configured to flush to disk after every 100 records with the following command: $ sudo grep freq /etc/audit/auditd.conf freq = 100 If "freq" isn't set to a value between "1" and "100", the value is missing, or the line is commented out, this is a finding.

Fix Text

Configure RHEL 9 to flush audit to disk by adding or updating the following rule in "/etc/audit/auditd.conf": freq = 100 The audit daemon must be restarted for the changes to take effect.

Additional Identifiers

Rule ID: SV-258168r943024_rule

Vulnerability ID: V-258168

Group Title: SRG-OS-000051-GPOS-00024

Expert Comments

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