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.

Related Forum: macOS High Sierra

Popular Stories

iPhone 17 Air Pastel Feature

iPhone 17 Air Battery Capacity and Weight Allegedly Revealed

Monday May 19, 2025 2:22 am PDT by
Apple is expected to launch an all-new ultra-thin iPhone 17 Air later this year, and while there have been plenty of rumors about the camera's overall design and thinness, we haven't heard any details about the device's weight and battery capacity until now. According to the leaker going by the account name "yeux1122" on the Korean-langauge Naver blog, the 6.6-inch iPhone 17 Air has a weight ...
Apple CarPlay Ultra instrument cluster themes 01

Apple's CarPlay Ultra Is Here – Does Your iPhone Support It?

Thursday May 15, 2025 5:17 am PDT by
Apple's recently announced CarPlay Ultra promises a deeply integrated in-car experience, but not all iPhone users will be able to take advantage of the new feature. According to Apple's press release, CarPlay Ultra requires an iPhone 12 or later running iOS 18.5 or later. This means if you're using an iPhone 11, iPhone XR, or any older model, you'll need to upgrade your device to access...
Apple Glass

Apple Smart Glasses: Everything We Know So Far

Wednesday May 21, 2025 8:21 am PDT by
Google made waves yesterday by showcasing a set of lightweight smart glasses featuring deep Gemini integration and an optional in-lens display. The demo has reignited interest in Apple's own smart glasses project, which has been the subject of rumors for nearly a decade. Here's a recap of where things stand. Current Development Status Apple is actively working on new chips specifically...
Apple CarPlay Ultra instrument cluster themes 01

Apple's 'CarPlay Ultra' Experience Now Available

Thursday May 15, 2025 5:07 am PDT by
Apple today announced that its next-generation CarPlay experience, now dubbed "CarPlay Ultra" begins rolling out today, starting with Aston Martin vehicles. Subscribe to the MacRumors YouTube channel for more videos. CarPlay Ultra is now available with new Aston Martin vehicle orders in the U.S. and Canada. It will also be available for existing models that feature the brand's next-generation ...
WWDC 2025 Banner

Apple Announces WWDC 2025 Schedule, Including Keynote Time

Tuesday May 20, 2025 8:13 am PDT by
Apple today announced a more detailed schedule for its annual developers conference WWDC, which runs from June 9 through June 13. The schedule confirms that Apple's keynote will begin on Monday, June 9 at 10 a.m. Pacific Time, with a live stream to be available on Apple.com, in the Apple TV app, and on YouTube. During the keynote, Apple is expected to announce iOS 19, iPadOS 19, macOS 16,...
macOS 16 visionOS Inspired Feature 1

macOS 16: Everything We Know So Far

Tuesday May 20, 2025 7:31 am PDT by
The Worldwide Developers Conference (WWDC), Apple's annual developer and software-oriented event, is less than three weeks away. We haven't heard a great deal about macOS 16 ahead of its announcement this year, so we could be in for some major surprises when June 9 rolls around. Here's what we know so far about the next major update to Apple's Mac operating system. macOS 16 Name? Every year ...
Apple Intelligence General Feature

Report: Apple's Next-Gen Version of Siri Is 'On Par' With ChatGPT

Monday May 19, 2025 9:00 am PDT by
Apple has big plans to improve Siri over the next few years, Bloomberg's Mark Gurman and Drake Bennett report. Some Apple executives are now reportedly pushing to turn Siri into a true ChatGPT competitor. A next-generation, chatbot version of Siri has reportedly made significant progress during testing over the past six months; some executives allegedly now see it as "on par" with recent...

Top Rated Comments

vicviper789 Avatar
98 months ago
Apple needs to fire the intern in charge of OS X
Score: 65 Votes (Like | Disagree)
Diving Capers Avatar
98 months ago
Why can’t it be like the good old days when “it just works” was real?



Attachment Image

Attachment Image

Attachment Image
Score: 42 Votes (Like | Disagree)
dogslobber Avatar
98 months ago
Time for Cook to resign. His tenure has been a disaster.
Score: 33 Votes (Like | Disagree)
NaOH Avatar
98 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
Score: 30 Votes (Like | Disagree)
M.PaulCezanne Avatar
98 months ago
Apple gives zero craps about the Mac.
Score: 29 Votes (Like | Disagree)
FireArse Avatar
98 months ago
Time for Cook to resign. His tenure has been a disaster.
I can’t disagree more.
Score: 23 Votes (Like | Disagree)