Title

The macOS system must be configured to disable hot corners. (Cat II impact)

Discussion

Although hot corners can be used to initiate a session lock or launch useful applications, they can also be configured to disable an automatic session lock from initiating. Such a configuration introduces the risk that a user might forget to manually lock the screen before stepping away from the computer.

Check Content

Verify the macOS system is configured to disable hot corners with the following command: /usr/sbin/system_profiler SPConfigurationProfileDataType | /usr/bin/grep "wvous" "wvous-bl-corner" = 0; "wvous-br-corner" = 0; "wvous-tl-corner" = 0; "wvous-tr-corner" = 0; If the command does not return the following, this is a finding. "wvous-bl-corner = 0; wvous-br-corner = 0; wvous-tl-corner = 0; wvous-tr-corner = 0;"

Fix Text

Configure the macOS system to disable hot corners by installing the "Custom Policy" configuration profile.

Additional Identifiers

Rule ID: SV-257148r958404_rule

Vulnerability ID: V-257148

Group Title: SRG-OS-000031-GPOS-00012

Expert Comments

CCIs tied to check.

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