The macOS system must configure the audit log folder to not contain access control lists (ACLs).

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-268433	APPL-15-000031	SV-268433r1034239_rule		Medium

Description

The audit log folder must not contain ACLs. Audit logs contain sensitive data about the system and users. This rule ensures that the audit service is configured to create log folders that are readable and writable only by system administrators to prevent normal users from reading audit logs. Satisfies: SRG-OS-000057-GPOS-00027, SRG-OS-000058-GPOS-00028, SRG-OS-000059-GPOS-00029, SRG-OS-000256-GPOS-00097, SRG-OS-000257-GPOS-00098, SRG-OS-000258-GPOS-00099

STIG	Date
Apple macOS 15 (Sequoia) Security Technical Implementation Guide	2025-05-05

Details

Check Text (C-72463r1034237_chk)

Verify the macOS system is configured without ACLs applied to log folders with the following command:

/bin/ls -lde /var/audit | /usr/bin/awk '{print $1}' | /usr/bin/grep -c ":"

If the result is not "0", this is a finding.

Fix Text (F-72364r1034238_fix)

Configure the macOS system without ACLs applied to log folders with the following command:

/bin/chmod -N /var/audit