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APPL-26-005050 The macOS system must enable macOS Application Firewall.

DISA STIG library V1R4
All changes in this version
first version loaded CAT II

Maps to CM-6 via CCI-000366

Title

The macOS system must enable macOS Application Firewall.

Control

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.

Discussion

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.

Related controls

CCI-000366

Fix

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