The macOS system must enforce screen saver timeout.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-259441 | APPL-14-000070 | SV-259441r958402_rule | CCI-000057 | medium |
| Description | ||||
| The screen saver timeout must be set to 900 seconds or a shorter length of time. This rule ensures that a full session lock is triggered within no more than 900 seconds of inactivity. | ||||
| STIG | Date | |||
| Apple macOS 14 (Sonoma) Security Technical Implementation Guide | 2024-12-04 | |||
Details
Check Text (C-259441r958402_chk)
Verify the macOS system is configured to initiate the screen saver timeout after 15 minutes of inactivity with the following command:
/usr/bin/osascript -l JavaScript << EOS
function run() {
let timeout = ObjC.unwrap($.NSUserDefaults.alloc.initWithSuiteName('com.apple.screensaver')\
.objectForKey('idleTime'))
if ( timeout <= 900 ) {
return("true")
} else {
return("false")
}
}
EOS
If the result is not "true", this is a finding.
Fix Text (F-63088r940944_fix)
Configure the macOS system to initiate the screen saver after 15 minutes of inactivity by installing the "com.apple.screensaver" configuration profile.