The Ubuntu operating system must immediately notify the SA and ISSO (at a minimum) when allocated audit record storage volume reaches 75% of the repository maximum audit record storage capacity.
An XCCDF Rule
Description
If security personnel are not notified immediately when storage volume reaches 75% utilization, they are unable to plan for audit record storage capacity expansion.
- ID
- SV-238307r971542_rule
- Version
- UBTU-20-010217
- Severity
- Low
- References
- Updated
Remediation Templates
A Manual Procedure
Edit "/etc/audit/auditd.conf" and set the "space_left_action" parameter to "exec" or "email".
If the "space_left_action" parameter is set to "email", set the "action_mail_acct" parameter to an email address for the SA and ISSO.
If the "space_left_action" parameter is set to "exec", ensure the command being executed notifies the SA and ISSO.
Edit "/etc/audit/auditd.conf" and set the "space_left" parameter to be at least 25% of the repository maximum audit record storage capacity.