The macOS system must enforce session lock no more than five seconds after screen saver is started.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-259420 | APPL-14-000003 | SV-259420r958400_rule | CCI-000056 | medium |
| Description | ||||
| A screen saver must be enabled and the system must be configured to require a password to unlock once the screensaver has been on for a maximum of five seconds. An unattended system with an excessive grace period is vulnerable to a malicious user. | ||||
| STIG | Date | |||
| Apple macOS 14 (Sonoma) Security Technical Implementation Guide | 2024-12-04 | |||
Details
Check Text (C-259420r958400_chk)
Verify the macOS system is configured to initiate a session lock within five seconds of the screen saver starting with the following command:
/usr/bin/osascript -l JavaScript << EOS
function run() {
let delay = ObjC.unwrap($.NSUserDefaults.alloc.initWithSuiteName('com.apple.screensaver')\
.objectForKey('askForPasswordDelay'))
if ( delay <= 5 ) {
return("true")
} else {
return("false")
}
}
EOS
If the result is not "true", this is a finding.
Fix Text (F-63067r940881_fix)
Configure the macOS system to initiate a session lock within five seconds of the screen saver starting by installing the "com.apple.screensaver" configuration profile.