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V-252441

CAT III (Low)

The macOS system must conceal, via the session lock, information previously visible on the display with a publicly viewable image.

Rule ID

SV-252441r958404_rule

STIG

Apple macOS 12 (Monterey) Security Technical Implementation Guide

Version

V1R9

CCIs

CCI-000060

Discussion

A default screen saver must be configured for all users, as the screen saver will act as a session time-out lock for the system and must conceal the contents of the screen from unauthorized users. The screen saver must not display any sensitive information or reveal the contents of the locked session screen. Publicly viewable images can include static or dynamic images such as patterns used with screen savers, photographic images, solid colors, a clock, a battery life indicator, or a blank screen.

Check Content

To view the currently selected screen saver for the logged-on user, run the following command:

/usr/sbin/system_profiler SPConfigurationProfileDataType | /usr/bin/grep loginWindowModulePath

If there is no result or defined "modulePath", this is a finding.

Fix Text

This setting is enforced using the "Login Window Policy" configuration profile.