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KB5016623 Issues with AAD App Proxy
Hello We have encountered some issues with KB5016623. The is causing the server, Win 2019 server running IIS, to crash after 5 to 10 minutes and to be unable to use AAD App Proxy connections that ar...
Hi Andrew,
We had the same issue today. Uninstalling KB016623 resolved it as well. I've logged it with Microsoft. Will report back when they respond.
Glen.
Anyone else using "RunAsPPL LSA Protections on the servers?
As part of debug with MS I had to remove the RunAaPPL reg key to be able to trace lsass.
To my surprise the AAD App Proxy started working after removing reg key and reboot server, with KB5016681 installed.
Ref: https://docs.microsoft.com/en-us/windows-server/security/credentials-protection-and-management/configuring-additional-lsa-protection
I don't use that, but I do use the ASR for LSASS, which is basically the same thing... Good to know I will look at disabling that on the app proxies for now.