All system audit files must not have extended ACLs.

From AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE

Associated with IA controls: ECTP-1

Associated with: CCI-000163

SV-38748r1_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

Procedure: # grep -p bin: /etc/security/audit/config Directories and files to search will be listed under the bin stanza. #aclget / Check if extended permissions are disabled. If extended permissions are not disabled, this is a finding.

Fix text

Remove the extended ACL from the system audit file(s) and disable extended permissions. #acledit / and disable extended permissions

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