Title

The audit system must be configured to audit file deletions. (Cat II impact)

Discussion

If the system is not configured to audit certain activities and write them to an audit log, it is more difficult to detect and track system compromises and damages incurred during a system compromise.

Check Content

Check the system audit configuration to determine if file and directory deletions are audited. # cat /etc/audit/audit.rules | grep -e "-a exit,always" | grep -i "unlink" If no results are returned, or the results do not contain "-S unlink", this is a finding.

Fix Text

Edit the audit.rules file and add the following line to enable auditing of deletions: -a exit,always -S unlink Restart the auditd service. # rcauditd restart OR# service auditd restart

Additional Identifiers

Rule ID: SV-45303r1_rule

Vulnerability ID: V-815

Group Title: GEN002740

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.