Vulnerability Discussion

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 OL 8 activity.

Satisfies: SRG-OS-000057-GPOS-00027, SRG-OS-000058-GPOS-00028, SRG-OS-000059-GPOS-00029

Check

Verify the audit log directory is group-owned by "root" to prevent unauthorized read access.

Determine where the audit logs are stored with the following command:

$ sudo grep -iw log_file /etc/audit/auditd.conf

log_file = /var/log/audit/audit.log

Determine the group owner of the audit log directory by using the output of the above command (ex: "/var/log/audit/"). Run the following command with the correct audit log directory path:

$ sudo ls -ld /var/log/audit

drwx------ 2 root root 23 Jun 11 11:56 /var/log/audit

If the audit log directory is not group-owned by "root", this is a finding.

Fix

Configure the audit log to be protected from unauthorized read access by setting the correct group-owner as "root" with the following command:

$ sudo chgrp root [audit_log_directory]

Replace "[audit_log_directory]" with the correct audit log directory path. By default, this location is usually "/var/log/audit".