STIG V-277029 | The macOS system must enforce screen ...

macOS 26 - Tahoe

The macOS system must enforce screen saver password

STIG ID: APPL-26-000002 | SRG: SRG-OS-000028-GPOS-00009 | Severity: Medium | CCI: CCI-000056 | Vulnerability ID: V-277029

Description

Users must authenticate when unlocking the screen saver.

The screen saver acts as a session lock and prevents unauthorized users from accessing the current user's account.

Check

C-81184r1148537_chk

Verify the macOS system is configured to prompt users to enter a password to unlock the screen saver with the following command:

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

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

Fix

F-81089r1148538_fix

Configure the macOS system to prompt users to enter a password to unlock the screen saver by installing the "com.apple.screensaver" configuration profile.