Apple Shares Fix for File Sharing Issues Following macOS High Sierra Security Update

Apple this afternoon published a new support document that walks users through repairing their file sharing options on their Macs after installing the 2017-001 Security Update for macOS High Sierra 10.13.1, which was released this morning.

Shortly after the security fix was released and users began installing it, file sharing complaints began surfacing on the MacRumors forums. Affected users saw file sharing fail to authenticate across multiple Macs. From MacRumors reader joedec:
Immediately after installing this patch, file sharing fails to authenticate. I see this on multiple Macs. Hoping for some collaboration. [...]

With the Finder open a file share to any Mac with the security update installed. Status shows "not connected", when you try to "connect as" your username and password fail.
According to the document, macOS High Sierra users who cannot access file sharing after installing the security update will need to complete the following steps:

1. Open the Terminal app, which is in the Utilities folder of your Applications folder.
2. Type sudo /usr/libexec/configureLocalKDC and press Return.
3. Enter your administrator password and press Return.
4. Quit the Terminal app.

MacRumors readers who were having file sharing problems have tested Apple's fix and have confirmed that it does indeed work to solve the problem.

Apple issued this morning's security update to address a major vulnerability that enabled the root superuser on a Mac with a blank password and no security check.

The problem has been successfully fixed on machines running macOS High Sierra 10.13.1, the current release version of macOS High Sierra, but Apple has not yet addressed the vulnerability in macOS High Sierra 10.13.2, available to both developers and public beta testers.

Update: Apple appears to have released a revised version of the security update, which is valid for systems running both macOS 10.13.0 and 10.13.1. The revised version may also address the issue in the original version that resulted in file sharing problems.

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28 months ago
Apple needs to fire the intern in charge of OS X
Rating: 64 Votes
28 months ago
Why can’t it be like the good old days when “it just works” was real?

Rating: 42 Votes
28 months ago
Time for Cook to resign. His tenure has been a disaster.
Rating: 32 Votes
28 months ago
99 little bugs in the code
99 little bugs in the code
Take one down, patch it around
117 little bugs in the code
Rating: 30 Votes
28 months ago
Apple gives zero craps about the Mac.
Rating: 29 Votes
28 months ago

Time for Cook to resign. His tenure has been a disaster.

I can’t disagree more.
Rating: 24 Votes
28 months ago

Ah the good old days, when enabling a guest account on Snow Leopard would erase your user data.

No doubt, this latest OS update has been an absolute trainwreck. Apple really dropped the ball. But to say such a rose-tinted statement as yours, especially with your recent join date on MR, just smacks as a little... well, like you read a Jobs biography last week and thought everything was gravy whilst he was CEO. That wasn’t the case.

I’ve been using Apple computers for 20 years... what does my join date have to do with anything?

If you feel the need to apologize for the abundance of misssteps that Apple have made in recent years maybe it is you who has the gravy pot.

Things were not perfect under Jobs, but it is much worse now.

Without the iPhone the current Apple is nothing.

I do prefer MacOS and iOS, but how much is because of quality and how much is because I’ve been using it for so long is now debatable.
Rating: 20 Votes
28 months ago
No more can Apple mock MS.
Rating: 20 Votes
28 months ago
Buy Apple, they said. It's secure, they said.
Rating: 17 Votes
28 months ago
Let me get this straight . Apple releases a update to fix a serious security flaw that was overlooked because of inadequate testing only to repeat the very same process that started this mess . Great job apple no wonder apple stocks are tanking today . Look for a patch tomorrow to fix the patch pushed today .

That round spaceship shaped campus is making more sense now . lol .
Rating: 15 Votes

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