iOS 11.3 breaks Apple’s MDM (Mobile Device Management) protocol
We’ve already published an iOS 11.3 bug list, which is being continuously updated. The list consists of reports (either with evidence of the problem, or multiple people talking about it). One problem we highlighted there was related to MDM (Mobile Device Management), with multiple people confirming that a bug in iOS 11.3 has broken this protocol.
For starters, as Apple explains, MDM protocol provides a way to tell a device to execute certain management commands remotely. So, for example, you can update iPhones and iPads in your organization remotely this way.
However, looks like iOS 11.3 has indeed broken this functionality, as in addition to multiple users reports, now JAMF (a popular Apple MDM software provider) has confirmed this. Here what the company said in a blog post published yesterday:
Devices upgraded to iOS 11.3 are returning a new response that does not match Apple’s documented protocol. This response will cause the device to remain in a failed loop, which prevents it from receiving further commands.
Here’s the complete post:
So as you can see, JAMF is suggesting users to not update their devices to iOS 11.3 until they release a workaround. Further, when a user asked for more clarification, here’s what the JAMF representative explained:
The MDM Software Update workflow I’m referring to is using the Jamf Pro action to “Send Remote Commands” and select “Update iOS Version…”
There’s even a bug report over at OpenRadar about this problem.
And here are some discussions going on about this over at Twitter:
Great of JAMF responding as quickly as possible to issues with iOS 11.3 MDM-pushed upgrades. Not really their bug to fix but they're responding quickly to work around the issue!
Would suggest *not* trying to "push" any updates to 11.3 at the present time! pic.twitter.com/GnDjhFpmJF
— David Colville (@dcolvl) April 3, 2018
InstallApplication MDM command sends an externalid / iTunesStoreID and the client responds with the bundle id of the app it installs … but apparently in 11.3 can reply with the wrong bundleid 😑
Might want to test your VPP process. https://t.co/rrFuhTcv3c
— mikeymikey (@mikeymikey) March 30, 2018
Looks like iOS 11.3 bug is breaking some MDM stuff. This means I can’t administer standardized testing sessions tomorrow without manually configuring a bunch of iPad for guided access.
— Bradley Chambers (@bradleychambers) April 2, 2018
One thing I need to add is that the bug appears (according to JAMF support rep who I might have been less than nice to at the time) if you push the update via MDM (vs on device).
— Bradley Chambers (@bradleychambers) April 3, 2018
There’s currently no official word from Apple on the matter.
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