All system audit files must not have extended ACLs.

From MAC OSX 10.6 Workstation Security Technical Implementation Guide

Associated with IA controls: ECTP-1

Associated with: CCI-000163

SV-38102r1_rule All system audit files must not have extended ACLs.

Vulnerability discussion

If a user can write to the audit logs, then audit trails can be modified or destroyed and system intrusion may not be detected.

Check content

Open a terminal session and enter the following command to view the ACLs of the audit files. ls -Ll /var/audit If the permissions include a '+', the file has an extended ACL, this is a finding.

Fix text

Open a terminal session and enter the following command to remove the extended ACLs. chmod -N

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