Vulnerability Discussion

The information system implements cryptographic mechanisms to
authenticate software prior to installation.

Gatekeeper settings must be configured correctly to only allow the system to run applications downloaded
from the Mac App Store or applications signed with a valid Apple Developer ID code. Administrator users
will still have the option to override these settings on a per-app basis. Gatekeeper is a security
feature that ensures that applications must be digitally signed by an Apple-issued certificate in order
to run. Digital signatures allow the macOS to verify that the application has not been modified by a
malicious third party.

Check

Verify the macOS system is configured to apply gatekeeper settings to block applications
from unidentified developers with the following command:

/usr/sbin/spctl --status --verbose | /usr/bin/grep -c "developer id enabled"

If the result is not "1", this is a finding.

Fix

Configure the macOS system to apply gatekeeper settings to block
applications from unidentified developers with the following command:

/usr/sbin/spctl --global-enable; /usr/sbin/spctl --enable