Audit logs must be rotated daily.

From VMware vRealize Operations Manager 6.x SLES Security Technical Implementation Guide

Associated with: CCI-000172

SV-99397r1_rule Audit logs must be rotated daily.

Vulnerability discussion

Rotate audit logs daily to preserve audit file system space and to conform to the 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.

Check content

Check for a logrotate entry that rotates audit logs. # ls -l /etc/logrotate.d/audit If it exists, check for the presence of the daily rotate flag: # egrep "daily" /etc/logrotate.d/audit The command should produce a "daily" entry in the logrotate file for the audit daemon. If the daily entry is missing, this is a finding.

Fix text

Create or edit the "/etc/logrotate.d/audit" file and add the daily entry, such as: /var/log/audit/audit.log { compress dateext rotate 15 daily missingok notifempty create 600 root root sharedscripts postrotate /sbin/service auditd restart 2> /dev/null > /dev/null || true endscript }

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