OL 8 audit logs must be group-owned by root to prevent unauthorized read access.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-248734	OL08-00-030090	SV-248734r779768_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 OL 8 activity. Satisfies: SRG-OS-000057-GPOS-00027, SRG-OS-000058-GPOS-00028, SRG-OS-000059-GPOS-00029

STIG	Date
Oracle Linux 8 Security Technical Implementation Guide	2022-12-06

Details

Check Text ( C-52168r779766_chk )
Verify the audit logs are group-owned by "root". 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 Using the location of the audit log file, determine if the audit log is group-owned by "root" using the following command: $ sudo ls -al /var/log/audit/audit.log rw------- 2 root root 23 Jun 11 11:56 /var/log/audit/audit.log If the audit log is not group-owned by "root", this is a finding.

Check Text ( C-52168r779766_chk )

Verify the audit logs are group-owned by "root".

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

Using the location of the audit log file, determine if the audit log is group-owned by "root" using the following command:

$ sudo ls -al /var/log/audit/audit.log

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

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

Fix Text (F-52122r779767_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_file] Replace "[audit_log_file]" to the correct audit log path. By default, this location is "/var/log/audit/audit.log".