8.1.1.3 Keep All Auditing Information (Scored)
Profile Applicability
- Level 2
Description
Normally, auditd will hold 4 logs of maximum log file size before deleting older log files.
Rationale
In high security contexts, the benefits of maintaining a long audit history exceed the cost of storing the audit history.
Audit Procedure
Using Command Line
Perform the following to determine if audit logs are retained.
grep max_log_file_action /etc/audit/auditd.conf
Expected Result
max_log_file_action = keep_logs
Remediation
Using Command Line
Add the following line to the /etc/audit/auditd.conf file:
max_log_file_action = keep_logs
Default Value
By default, auditd retains only 4 copies of log files.
References
- CIS Ubuntu 12.04 LTS Server Benchmark v1.1.0
Profile
Level 2 - Scored