Summary: The AppStore Preferences in System Preferences can be unlocked by a local admin with any bogus password. Steps to Reproduce: 1) Log in as a local admin 2) Open App Store Prefpane from the System Preferences 3) Lock the padlock if it is already unlocked 4) Click the lock to unlock it 5) Enter any bogus password Expected Results: The authorization to fail. Actual Results: Authorization succeeds and grants access to change the AppStore preferences. Version: 10.13.2 17C88 Notes: This only appears to be when logged in as a local admin. Tested with a non-admin account and I cannot unlock the prefpane with incorrect credentials.