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V-282572

CAT II (Medium)

TOSS 5 must act when allocated audit record storage volume reaches 95 percent of the repository maximum audit record storage capacity.

Rule ID

SV-282572r1200696_rule

STIG

Tri-Lab Operating System Stack (TOSS) 5 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 TOSS 5 is configured to take action in the event of allocated audit record storage volume reaches 95 percent of the repository maximum audit record storage capacity using the following command:

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

admin_space_left_action = single

If the value of the "admin_space_left_action" is not set to "single", or if the line is commented out, ask the system administrator (SA) to indicate how the system is providing real-time alerts to the SA and information system security officer (ISSO).

If there is no evidence that real-time alerts are configured on the system, this is a finding.

Fix Text

Configure "auditd" service to act in the event of allocated audit record storage volume reaches 95 percent of the repository maximum audit record storage capacity.

Edit the following line in "/etc/audit/auditd.conf" to ensure that the system is forced into single user mode in the event the audit record storage volume is about to reach maximum capacity:

admin_space_left_action = single 

Restart the audit daemon changes to take effect.