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RHEL-09-653095 RHEL 9 must periodically flush audit records to disk to prevent the loss of audit records.

DISA STIG library V2R10
All changes in this version
first version loaded CAT II

Maps to AU-6(4) via CCI-000154

Title

RHEL 9 must periodically flush audit records to disk to prevent the loss of audit records.

Control

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.

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.

Related controls

CCI-000154

Fix

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.