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.

Top Rated Comments

vicviper789 Avatar
61 months ago
Apple needs to fire the intern in charge of OS X
Score: 65 Votes (Like | Disagree)
Diving Capers Avatar
61 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
61 months ago
Time for Cook to resign. His tenure has been a disaster.
Score: 33 Votes (Like | Disagree)
NaOH Avatar
61 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
61 months ago
Apple gives zero craps about the Mac.
Score: 29 Votes (Like | Disagree)
FireArse Avatar
61 months ago
Time for Cook to resign. His tenure has been a disaster.
I can’t disagree more.
Score: 23 Votes (Like | Disagree)

Popular Stories

iPhone 14 Pro Purple Rear Flat MacRumors Exclusive

iPhone 14 Pro Predicted to Start With Increased 256GB Storage Alongside Rumored Price Increase

Wednesday August 10, 2022 11:14 am PDT by
Earlier today, analyst Ming-Chi Kuo claimed iPhone 14 Pro models will be more expensive than iPhone 13 Pro models. Kuo did not reveal exact pricing, but he said that the average selling price of all four iPhone 14 models will increase by about 15% overall. While higher prices would be disappointing for customers, it is possible the iPhone 14 Pro and iPhone 14 Pro Max will offer increased...
iOS 16 battery percentage

Apple Limiting iOS 16 Beta 5 Battery Percentage Display to Select iPhones: Here Are the Supported Devices

Tuesday August 9, 2022 2:51 am PDT by
Apple this week brought back one of the most highly requested features from iOS users since the launch of the iPhone X in 2017: the ability to see your battery percentage directly in the status bar. Ever since the launch of the iPhone X with the notch, Apple has not allowed users to show their battery percentage directly in the status bar, forcing them to swipe down into Control Center to...
iPhone 14 Pro Lineup Feature Silver

Kuo: Apple to Increase Prices of iPhone 14 Pro Models

Wednesday August 10, 2022 8:22 am PDT by
Apple plans to increase the prices of iPhone 14 Pro models compared to iPhone 13 Pro models, according to analyst Ming-Chi Kuo. Kuo did not reveal exact pricing for the iPhone 14 Pro models. However, in a tweet today, he estimated that the average selling price of the iPhone 14 lineup as a whole will increase by about 15% compared to the iPhone 13 lineup. In the United States, the iPhone...
ios 16 beta 5 battery percent

iOS 16 Beta 5: Battery Percentage Now Displayed in iPhone Status Bar

Monday August 8, 2022 10:43 am PDT by
With the fifth beta of iOS 16, Apple has updated the battery icon on iPhones with Face ID to display the specific battery percentage rather than just a visual representation of battery level. The new battery indicator is available on iPhone 12 and iPhone 13 models, with the exception of the 5.4-inch iPhone 12/13 mini. It is also available on the iPhone 11 Pro and Pro Max, XS and XS Max, and...
battery percentage ios 16

Here's Why the iPhone Battery Status Icon in iOS 16 Is So Controversial

Wednesday August 10, 2022 4:34 am PDT by
In the latest iOS 16 beta, Apple has updated the status bar battery icon on iPhones with Face ID to display the exact percentage remaining rather than just a visual representation of battery level, and while the change has been largely welcomed, some users are unhappy with the way it has been implemented. In iOS 15 and earlier, battery percent has not been present on iPhones that have...
iPhone 14 Pro Purple Front and Back MacRumors Exclusive feature

iPhone 14 Is Just a Few Weeks Away: Three Tips to Prepare for the New iPhone

Wednesday August 10, 2022 4:08 am PDT by
The launch of the new iPhone 14 is just a few weeks away, meaning millions of iPhone customers will soon upgrade their existing iPhone or perhaps get an iPhone for the first time. Exclusive MacRumors iPhone 14 Pro renders by graphic designer Ian Zelbo Whether upgrading from an older model or this is your first iPhone, we've rounded up a few tips to help you prepare for the next flagship...
iPhone 14 Lineup Feature Purple

Color Options for All iPhone 14 Models: Everything We Know

Monday August 8, 2022 3:59 am PDT by
The iPhone 14 and iPhone 14 Pro models are rumored to be available in a refreshed range of color options, including an all-new purple color. Most expectations about the iPhone 14 lineup's color options come from an unverified post on Chinese social media site Weibo earlier this year. Overall, the iPhone 14 and iPhone 14 Pro's selection of color options could look fairly similar to those of the ...