Apple macOS 15 (Sequoia) Security Technical Implementation Guide

The Apple macOS 15 (Sequoia) Security Technical Implementation Guide (V1 R8) has 160 STIG checks. New to STIG checklists? Read What is a STIG checklist?, CKL vs CKLB, and STIG vs SCAP benchmark.

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Severity

Version

V1 · R8

CurrentPublished Wed Sep 30 2026

The macOS system must enable macOS Application Firewall.

Apple macOS 15 (Sequoia) Security Technical Implementation Guide

Assessment Title

Rule Text

The macOS system must enable macOS Application Firewall.

Description

Discussion Text

The macOS Application Firewall is the built-in firewall that comes with macOS, and it must be enabled.

When the macOS Application Firewall is enabled, the flow of information within the information system and between interconnected systems will be controlled by approved authorizations.

New to STIG checklists? Read What is a STIG checklist? and CKL vs CKLB.

Objective

V-268557

Rule

SV-268557r1034611_rule

Severity

medium

Rule Version

APPL-15-005050

Documentable

false

IA Controls

NIST SP 800-53

Rev 5

Assessment Procedure

Check Text

Verify the macOS system is configured to enable the Application Firewall with the following command:

/usr/bin/osascript -l JavaScript << EOS
$.NSUserDefaults.alloc.initWithSuiteName('com.apple.security.firewall')\
.objectForKey('EnableFirewall').js
EOS

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

Implementation Procedure

Fix Text

Configure the macOS system to enable the Application Firewall by installing the "com.apple.security.firewall" configuration profile.

STIG check 134 of 160 in the Apple macOS 15 (Sequoia) STIG checklist

← Previous · V-268556The macOS system must enforce FileVault.Next · V-268558 →The macOS system must configure the login window to prompt for username and password.