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V-281107

CAT II (Medium)

RHEL 10 must take action when allocated audit record storage volume reaches 95 percent of the audit record storage capacity.

Rule ID

SV-281107r1166273_rule

STIG

Red Hat Enterprise Linux 10 Security Technical Implementation Guide

Version

V1R1

CCIs

CCI-001855

Discussion

If action is not taken when storage volume reaches 95 percent utilization, the auditing system may fail when the storage volume reaches capacity.

Check Content

Verify RHEL 10 takes action when allocated audit record storage volume reaches 95 percent of the repository maximum audit record storage capacity with the following command:

$ sudo grep -w admin_space_left /etc/audit/auditd.conf
admin_space_left = 5%

If the value of the "admin_space_left" keyword is not set to 5 percent of the storage volume allocated to audit logs, or if the line is commented out, ask the system administrator to indicate how the system is taking action if the allocated storage is about to reach capacity. 

If the "space_left" value is not configured to the correct value, this is a finding.

Fix Text

Configure RHEL 10 to initiate an action when allocated audit record storage volume reaches 95 percent of the repository maximum audit record storage capacity by adding/modifying the following line in the /etc/audit/auditd.conf file:

admin_space_left = 5%

Restart the audit daemon with the following command for the changes to take effect:

$ sudo service auditd restart