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.
Popular Stories
Apple today introduced its first two physical products of 2026: a second-generation AirTag and the Black Unity Connection Braided Solo Loop for the Apple Watch.
Read our coverage of each announcement to learn more:Apple Unveils New AirTag With Longer Range, Louder Speaker, and More
Apple Introduces New Black Unity Apple Watch BandBoth the new AirTag and the Black Unity Connection Braided...
Alongside iOS 26.2.1, Apple today released an updated version of iOS 12 for devices that are still running that operating system update, eight years after the software was first released.
iOS 12.5.8 is available for the iPhone 5s and the iPhone 6, meaning Apple is continuing to support these devices for 13 and 12 years after launch, respectively. The iPhone 5s came out in September 2013,...
Update: Apple Creator Studio is now available.
Apple Creator Studio launches this Wednesday, January 28. The all-in-one subscription provides access to the Final Cut Pro, Logic Pro, Pixelmator Pro, Motion, Compressor, and MainStage apps, with U.S. pricing set at $12.99 per month or $129 per year.
A subscription to Apple Creator Studio also unlocks "intelligent features" and "premium...
Apple today confirmed to Reuters that it has acquired Q.ai, an Israeli startup that is working on artificial intelligence technology for audio.
Apple paid close to $2 billion for Q.ai, according to sources cited by the Financial Times. That would make this Apple's second-biggest acquisition ever, after it paid $3 billion for the popular headphone and audio brand Beats in 2014.
Q.ai has...
Apple today introduced the second-generation AirTag, with key features including longer range for tracking items and a louder speaker.
For those who are not familiar, the AirTag is a small accessory that you can attach to your backpack, keys, or other items. Then, you can track the location of those items in the Find My app on the iPhone, iPad, Mac, Apple Watch, and iCloud.com.
The new...
