Title

The audit system must alert the SA when the audit storage volume approaches its capacity. (Cat II impact)

Discussion

An accurate and current audit trail is essential for maintaining a record of system activity. If the system fails, the SA must be notified and must take prompt action to correct the problem. Minimally, the system must log this event and the SA will receive this notification during the daily system log review. If feasible, active alerting (such as e-mail or paging) should be employed consistent with the site’s established operations management systems and procedures.

Check Content

Determine if the audit system is configured to generate warnings when the audit storage volume approaches capacity. Procedure: # cat /etc/rc.config.d/auditing | grep AUDOMON_ARGS | grep "\-w" If the -w parameter does not exist, this is a finding. If the number following the -w parameter (which represents the threshold for percentage of capacity) is greater than 90, this is a finding.

Fix Text

Edit the AUDOMON_ARGS parameter of the /etc/rc.config.d/auditing file to include -w 90.

Additional Identifiers

Rule ID: SV-29653r1_rule

Vulnerability ID: V-22375

Group Title: GEN002730

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.