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V-259525

CAT II (Medium)

The macOS system must disable iCloud Private Relay.

Rule ID

SV-259525r958478_rule

STIG

Apple macOS 14 (Sonoma) Security Technical Implementation Guide

Version

V2R3

CCIs

CCI-000381

Discussion

Enterprise networks may be required to audit all network traffic by policy; therefore, iCloud Private Relay must be disabled. Network administrators can also prevent the use of this feature by blocking DNS resolution of mask.icloud.com and mask-h2.icloud.com.

Check Content

Verify the macOS system is configured to disable the iCloud Private Relay with the following command:

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

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

Fix Text

Configure the macOS system to disable the iCloud Private Relay by installing the "com.apple.applicationaccess" configuration profile.