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RHEL-09-653065 RHEL 9 must take appropriate action when the internal event queue is full.

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

Maps to AU-4(1) via CCI-001851

Title

RHEL 9 must take appropriate action when the internal event queue is full.

Control

Verify that RHEL 9 audit system is configured to take an appropriate action when the internal event queue is full: $ sudo grep -i overflow_action /etc/audit/auditd.conf overflow_action = syslog If the value of the "overflow_action" option is not set to "syslog", "single", "halt" or the line is commented out, ask the system administrator (SA) to indicate how the audit logs are offloaded to a different system or media. If there is no evidence that the audit system is configured to off-load the audit logs to another system or media and if the overflow action is not set to take appropriate action if the internal event queue becomes full, this is a finding.

Discussion

The audit system should have an action setup in the event the internal event queue becomes full so that no data is lost. Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Offloading is a common process in information systems with limited audit storage capacity. Satisfies: SRG-OS-000342-GPOS-00133, SRG-OS-000479-GPOS-00224

Related controls

CCI-001851

Fix

Edit the /etc/audit/auditd.conf file and add or update the "overflow_action" option: overflow_action = syslog The audit daemon must be restarted for changes to take effect.