Title

The macOS system must retain the session lock until the user reestablishes access using established identification and authentication procedures. (Cat II impact)

Discussion

Users must be prompted to enter their passwords 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 Content

Verify the macOS system is configured to prompt users to enter a password to unlock the screen saver with the following command: /usr/sbin/system_profiler SPConfigurationProfileDataType | /usr/bin/grep -w "askForPassword" askForPassword = 1; If there is no result, or if "askForPassword" is not set to "1", this is a finding.

Fix Text

Configure the macOS system to prompt users to enter a password to unlock the screen saver by installing the "Login Window Policy" configuration profile.

Additional Identifiers

Rule ID: SV-257143r905062_rule

Vulnerability ID: V-257143

Group Title: SRG-OS-000028-GPOS-00009

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.