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All system audit files must not have extended ACLs.


Overview

Finding ID Version Rule ID IA Controls Severity
V-22369 GEN002710 SV-45211r1_rule Medium
Description
If a user can write to the audit logs, then audit trails can be modified or destroyed and system intrusion may not be detected.
STIG Date
SUSE Linux Enterprise Server v11 for System z 2016-12-20

Details

Check Text ( C-42559r1_chk )
Check the system audit log files for extended ACLs.

Procedure:
# grep "^log_file" /etc/audit/auditd.conf|sed s/^[^\/]*//|xargs ls -l

If the permissions include a '+', the file has an extended ACL. If the file has an extended ACL and it has not been documented with the IAO, this is a finding.
Fix Text (F-38607r1_fix)
Remove the extended ACL from the system audit file(s).

# setfacl --remove-all [audit file]