DISA STIGS Viewer

The macOS system must disable Internet Sharing.

Overview

Finding ID Version Rule ID IA Controls Severity
V-268483 APPL-15-002007 SV-268483r1034389_rule   Medium
Description
If the system does not require Internet Sharing, support for it is nonessential and must be disabled. The information system must be configured to provide only essential capabilities. Disabling Internet Sharing helps prevent unauthorized connection of devices, transfer of information, and tunneling.
STIG Date
Apple macOS 15 (Sequoia) Security Technical Implementation Guide 2025-05-05

Details

Check Text (C-72513r1034387_chk)
Verify the macOS system is configured to disable Internet Sharing with the following command:

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

If the result is not "true", this is a finding.
Fix Text (F-72414r1034388_fix)
Configure the macOS system to disable Internet Sharing by installing the "com.apple.MCX" configuration profile.