Released: April 2021 Exchange Server Security Updates

Hey,

Since many of our customers reported the issues here. We wanted to communicate some more information to get this sorted faster.

Nino_Bilic 

PRTG is using Remote Powershell and accessing the Exchange Management Shell, which was reported as broken already. 

var credential = new PSCredential(user,pw);
var connectionInfo = new WSManConnectionInfo(false, server, port, "/Powershell", "http://schemas.microsoft.com/powershell/Microsoft.Exchange",                                                      credential)
System.Management.Automation.Runspace.Runspace = RunspaceFactory.CreateRunspace(connectionInfo);
Runspace.Open()

While the errormessage said something about Language Mode, we tried to adapt that. Sadly the System.Management.Automation.Runspaces.RunspaceFactory does not have a overload, which takes the arguments for a System.Management.Automation.Runspaces.InitialSessionState object, where you can adjust the Language Mode and a RunspaceConnectionInfo(specifically WSManConnectionInfo) object.

Once the Runspace is created, the Language Mode cannot be changed anymore.

Thanks,

Eugen Wilhelm (Paessler AG)