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Audit logs on the AIX system must be set to 660 or less permissive.


Overview

Finding ID Version Rule ID IA Controls Severity
V-215245 AIX7-00-002015 SV-215245r508663_rule Medium
Description
Unauthorized disclosure of audit records can reveal system and configuration data to attackers, thus compromising its confidentiality. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit operating system activity. Satisfies: SRG-OS-000057-GPOS-00027, SRG-OS-000058-GPOS-00028, SRG-OS-000059-GPOS-00029
STIG Date
IBM AIX 7.x Security Technical Implementation Guide 2022-06-06

Details

Check Text ( C-16443r294186_chk )
Check the log files under the audit logging directory have correct permissions.

The default log file is /audit/trail.

The log file can be set by the "trail" variable in /etc/security/audit/config.
# grep trail /etc/security/audit/config
trail = /audit/trail

# ls -l
total 240
-rw-rw---- 1 root system 0 Feb 23 08:44 bin1
-rw-rw---- 1 root system 0 Feb 23 08:44 bin2
-rw-r----- 1 root system 116273 Feb 23 08:44 trail

If any file has a mode more permissive than "660", this is a finding.
Fix Text (F-16441r294187_fix)
Set the permission of the audit log file to "660".

# chmod 660