MacOS High Sierra Users Be Aware – Bug Allows Admin Access

As you may know, back in November a serious bug in MacOS High Sierra appeared, that allowed full admin access to any Mac using the username ‘root’ and a blank password.The bug – that was found by Lemi Ergin – lets anyone gain access to an administrators account on an unlocked Mac and provides access at the login screen of locked Macs.
As expected, Apple promptly issued a statement that they are working on a fix and sure enough a patch was rolled out within 24 hours of the problem being highlighted. But the problem doesn’t end there…

MacOS update accidently undoes Apples patch

It seems that the patch for the ‘root’ bug was so rushed that it was nearly as infected as the code it was designed to fix. Now Mac users say that the patch has a glitch of its own. Those who downloaded the patch say that the ‘root’ bug returns when the most recent system update for the MacOS is installed. Worse still, even if you know to reapply the security patch after the update is complete, the ‘root’ bug still persists unless the computer is rebooted. However there’s no warning that a reboot is necessary to be protected, meaning many could be left vulnerable.
To find out more about the ‘root’ bug and security patch, click here.

If you’re worried about the security of your MacOS, why not have at chat with us here at Advance Computer Systems, we can advise on the best measures to take to help keep your data protected. Contact us today on 01906 653789 or click here.