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Released: January 2023 Exchange Server Security Updates

The_Exchange_Team's avatar
The_Exchange_Team
Platinum Contributor
Jan 10, 2023
Microsoft has released Security Updates (SUs) for vulnerabilities found in: Exchange Server 2013 Exchange Server 2016 Exchange Server 2019 SUs are available in a self-extracting auto-elev...
Updated Sep 18, 2023
Version 9.0
announcements
Exchange 2013
exchange 2016
exchange 2019
security
Michael_Wiskman's avatar
Michael_Wiskman
Brass Contributor
Jan 26, 2023

@Lukas Sassl Microsoft
Exchange Toolbox and Queue Viewer fails after Certificate Signing of PowerShell Serialization Payload is enabled

Your "workaround" works but you have to change Get-SettingOverride -Name "EnableSigningVerification" | Remove-SettingOverride (KB5023352)
to Get-SettingOverride -Identity "EnableSigningVerification" | Remove-SettingOverride 

I have tested on an Exchange 2019 server and it works.

So run the following commands in an elevated instance of EMS: 

Get-SettingOverride -Identity "EnableSigningVerification" | Remove-SettingOverride

Get-ExchangeDiagnosticInfo -Process Microsoft.Exchange.Directory.TopologyService -Component VariantConfiguration -Argument Refresh

Restart-Service -Name W3SVC, WAS -Force