Audit logs must be rotated daily.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-4357	GEN002860	SV-4357r2_rule	ECSC-1	Medium

Description
Rotate audit logs daily to preserve audit file system space and to conform to the DoD/DISA requirement. If it is not rotated daily and moved to another location, then there is more of a chance for the compromise of audit data by malicious users.

STIG	Date
UNIX SRG	2013-03-26

Details

Check Text ( C-8278r2_chk )
Check for any crontab entries that rotate audit logs. Procedure: # crontab -l If such a cron job is found, this is not a finding. Otherwise, query the SA. If there is a process automatically rotating audit logs, this is not a finding. If the SA manually rotates audit logs, this is still a finding, because if the SA is not there, it will not be accomplished. If the audit output is not archived daily, to tape or disk, this is a finding. This can be ascertained by looking at the audit log directory and, if more than one file is there, or if the file does not have today's date, this is a finding.

Check Text ( C-8278r2_chk )

Check for any crontab entries that rotate audit logs.
Procedure:
# crontab -l
If such a cron job is found, this is not a finding.

Otherwise, query the SA. If there is a process automatically rotating audit logs, this is not a finding. If the SA manually rotates audit logs, this is still a finding, because if the SA is not there, it will not be accomplished. If the audit output is not archived daily, to tape or disk, this is a finding. This can be ascertained by looking at the audit log directory and, if more than one file is there, or if the file does not have today's date, this is a finding.

Fix Text (F-4268r2_fix)
Configure a cron job or other automated process to rotate the audit logs on a daily basis.