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Mojave Security Update 2021-004 broke Kerberos for me

This is in regards to a mobile account...

After applying Mojave security update 2021-004 I lost the ability to connect to SMB shares hosted by a Mac Mini. In addition to this I cannot connect to anything with Apple Remote Desktop (it freezes), Outlook will usually freeze on quitting now, and if I need to unlock my account (say from the screensaver) it frequently freezes after I enter the password and I have to do a forced restart.

After a lot of trouble shooting I think the problem may be with my Kerberos cache. I've come to this conclusion because the Ticket View app also freezes on boot up before any tickets appear and has to be force quit. So my question is, how can I clear the Kerberos cache without ticket viewer? Or should I simple recreate this mobile account as a local on and hope for the best.

Thanks,

Scott Wirth

iMac Line (2012 and Later)

Posted on May 27, 2021 10:54 AM

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Charles Wirth Author

Level 1

15 points

Posted on May 27, 2021 3:46 PM

Tried Safe Boot first thing and it didn't work :(

However, I found this today, after posting this question, and it did work.

https://talk.tidbits.com/t/security-update-2021-003-catalina-and-2021-004-mojave/15754/2

The problem only affects mobile users authenticating with AD or Open Directory.

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38 replies

Jun 1, 2021 3:40 AM in response to esa63ase

I had wondered about a cache but my Macs update directly. No central cache has been set up so unless there is a local cache it would seem the information is still coming from outside the LAN.

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Jun 16, 2021 6:47 AM in response to Charles Wirth

Same issues here. Any update on this?

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Level 1

14 points

Jun 17, 2021 5:22 PM in response to philphan25

Same issue- has thus problem been fixed??

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Jun 17, 2021 6:09 PM in response to Tymama

I haven't read this whole thread, but has anybody checked if the Kerberos Certificate in Keychain is still valid?

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Level 1

9 points

Jun 23, 2021 7:46 AM in response to pacificadmin

I'll definitely keep that in mind when time comes to renew our client computers next year. We will push for PCs unless Apple quickly comes with a solution, this is totally unacceptable.

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Jul 6, 2021 6:26 PM in response to HoldenWX

👍

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Level 10

240,275 points

Jul 6, 2021 6:27 PM in response to iGary

👍

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Jul 19, 2021 12:30 PM in response to Charles Wirth

Unbelievable that this hasn't been fixed yet. Sadly not that surprising either.

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Mojave Security Update 2021-004 broke Kerberos for me

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