STIGQter: STIG Summary: Red Hat Enterprise Linux 9 Security Technical Implementation Guide Version: 2 Release: 9 Benchmark Date: 01 Jul 2026:

RHEL 9 audit system must take appropriate action when the audit storage volume is full.

DISA Rule

SV-258154r1038966_rule

Vulnerability Number

V-258154

Group Title

SRG-OS-000047-GPOS-00023

Rule Version

RHEL-09-653025

Severity

CAT II

CCI(s)

• CCI-000140 - Take organization-defined actions upon audit failure include, shutting down the system, overwriting oldest audit records, and stopping the generation of audit records.

Weight

10

Fix Recommendation

Configure RHEL 9 to shut down by default upon audit failure (unless availability is an overriding concern).

Add or update the following line (depending on configuration "disk_full_action" can be set to "SYSLOG" or "SINGLE" depending on configuration) in "/etc/audit/auditd.conf" file:

disk_full_action = HALT

If availability has been determined to be more important, and this decision is documented with the information system security officer (ISSO), configure the operating system to notify SA staff and ISSO staff in the event of an audit processing failure by setting the "disk_full_action" to "SYSLOG".

Check Contents

Verify RHEL 9 takes the appropriate action when the audit storage volume is full.

Check that RHEL 9 takes the appropriate action when the audit storage volume is full with the following command:

$ sudo grep disk_full_action /etc/audit/auditd.conf

disk_full_action = HALT

If the value of the "disk_full_action" option is not "SYSLOG", "SINGLE", or "HALT", or the line is commented out, ask the system administrator (SA) to indicate how the system takes appropriate action when an audit storage volume is full. If there is no evidence of appropriate action, this is a finding.

Vulnerability Number

V-258154

Documentable

False

Rule Version

RHEL-09-653025

Severity Override Guidance

Verify RHEL 9 takes the appropriate action when the audit storage volume is full.

Check that RHEL 9 takes the appropriate action when the audit storage volume is full with the following command:

$ sudo grep disk_full_action /etc/audit/auditd.conf

disk_full_action = HALT

If the value of the "disk_full_action" option is not "SYSLOG", "SINGLE", or "HALT", or the line is commented out, ask the system administrator (SA) to indicate how the system takes appropriate action when an audit storage volume is full. If there is no evidence of appropriate action, this is a finding.

Check Content Reference

M

Target Key

5551