The macOS system must disable Internet Sharing.

Severity
Group ID
Group Title
Version
Rule ID
Date
STIG Version
mediumV-268483SRG-OS-000095-GPOS-00049APPL-15-002007SV-268483r1034389_rule2025-02-201
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.
ℹ️ Check
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
Configure the macOS system to disable Internet Sharing by installing the "com.apple.MCX" configuration profile.