V-239599

Discussion

It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required. Without a real-time alert, security personnel may be unaware of an impending failure of the audit capability and system operation may be adversely affected. Alerts provide organizations with urgent messages. Real-time alerts provide these messages immediately (i.e., the time from event detection to alert occurs in seconds or less).

Check Content

Check "/etc/audit/auditd.conf" file for the "space_left_action" parameter with the following command:

# cat /etc/audit/auditd.conf | grep space_left_action 

If the "space_left_action" parameter is missing, set to "ignore", set to "suspend", set to "single", set to "halt", or is blank, this is a finding

Expected Result: 

space_left_action = SYSLOG

Notes: 
If the "space_left_action" parameter is set to "exec" the system executes a designated script. 

If this script informs the SA of the event, this is not a finding.

If the "space_left_action" parameter is set to "email" and the "action_mail_acct" parameter is not set to the email address of the system administrator, this is a finding. 

The "action_mail_acct" parameter, if missing, defaults to "root". Note that if the email address of the system administrator is on a remote system "sendmail" must be available.