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Apple Releases macOS High Sierra Security Update to Fix Root Password Vulnerability

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Apple today released Security Update 2017-001 to fix a serious vulnerability that enables access to the root superuser account with a blank password on any Mac running macOS High Sierra version 10.13.1.

rootbug
The critical bug, which gained attention after it was tweeted by developer Lemi Ergin yesterday, lets anyone gain administrator privileges by simply entering the username "root" and a blank password in System Preferences > Users & Groups.

The security update is rolling out on the Mac App Store now, and it should be installed by all users running macOS High Sierra as soon as possible. Regardless, starting later today, Apple said the security update will be automatically installed on all Macs running macOS High Sierra 10.13.1.

Apple has since apologized for the vulnerability in a statement issued to MacRumors:

Security is a top priority for every Apple product, and regrettably we stumbled with this release of macOS.

When our security engineers became aware of the issue Tuesday afternoon, we immediately began working on an update that closes the security hole. This morning, as of 8 a.m., the update is available for download, and starting later today it will be automatically installed on all systems running the latest version (10.13.1) of macOS High Sierra.

We greatly regret this error and we apologize to all Mac users, both for releasing with this vulnerability and for the concern it has caused. Our customers deserve better. We are auditing our development processes to help prevent this from happening again.

The vulnerability does not affect macOS Sierra or any other previous version of the operating system.

Related Forum: macOS High Sierra

Top Rated Comments

A
aforty
109 months ago
How embarrassing...

I wish Apple did a better job testing their releases. We used to enjoy such high quality when it came to software updates and releases.
Score: 42 Votes (Like | Disagree)
bwintx Avatar
bwintx
109 months ago
That was quick
And it was utterly necessary that it be just that.
Score: 36 Votes (Like | Disagree)
dannyyankou Avatar
dannyyankou
109 months ago
That was quick
Score: 34 Votes (Like | Disagree)
A
AbSoluTc
109 months ago
How embarrassing...

I wish Apple did a better job testing their releases. We used to enjoy such high quality when it came to software updates and releases.
You ever heard of Windows? Perhaps you should read up on that OS if you haven't.

Also, give me a break. Nobody finds everything, not even "Apple". Patched quickly and painlessly. Move along.
Score: 31 Votes (Like | Disagree)
longofest Avatar
longofest
109 months ago
You ever heard of Windows? Perhaps you should read up on that OS if you haven't.

Also, give me a break. Nobody finds everything, not even "Apple". Patched quickly and painlessly. Move along.
Three... count 'em... THREE... critical and ridiculous security issues with Mac OS High Sierra within as many months. This one, the Disk utility one, and the keychain one. And that's just the security issues...

There's no excuse for it. Saying "well, microsoft is just as bad" just means that Apple is stooping to Microsoft's level... but I'd actually venture to say that Apple is starting to get worse than Microsoft when it comes to Mac OS vs Windows.
Score: 13 Votes (Like | Disagree)
egodspeed Avatar
egodspeed
109 months ago
Let's face it. Every operating system or application will come across vulnerabilities, but it doesn't truly matter how bad or embarrassing they are (like this one was).

The real test of a quality company is how fast they can provide the update/patch to fix the security issues.

This was a big miss on the "QA front end" for Apple, but it was an excellent timely response to an urgent issue.
Score: 10 Votes (Like | Disagree)
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