SSH remoting does not provide the entire SSH host key revocation error message #3546
Description
Steps to reproduce
- Set up PowerShell SSH remoting as both client and host on a Windows or Linux machine
- Establish that remoting is working back to the same machine
Enter-PSSession -hostname LocalComputerName -userName User - Delete and recreate the host keys
On Windows go to where Win32-OpenSSH is installed and delete all "ssh_host_key*" files
Then create new files by running ssh-keygen.exe -A - Try to create a new remote session
Enter-PSSession -hostname LocalComputerName -userName User
Expected behavior
Get complete SSH host key revocation error message
The entire SSH error message should be
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the ECDSA key sent by the remote host is
SHA256:Etb4yw1QyVJnP4eGKdvOG/xPy9F5rKEw+Xk02wXmJGU.
Please contact your system administrator.
Add correct host key in C:\\Users\\UserName/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in C:\\Users\\UserName/.ssh/known_hosts:1
ECDSA host key for LocalComputerName has changed and you have requested strict checking.
Host key verification failed.Actual behavior
Enter-PSSession : [paulhig-3] The background process reported an error with the following message: The SSH client session has
ended with error message: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@.
At line:1 char:6
+ $s = nsn -HostName paulhig-3 -UserName redmond\paulhi
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : OpenError: (System.Manageme....RemoteRunspace:RemoteRunspace) [New-PSSession], PSRemotin
gTransportException
+ FullyQualifiedErrorId : 2100,PSSessionOpenFailedThe PowerShell error only contains the first part of the SSH error message and is not very useful.
Environment data
Name Value
---- -----
WSManStackVersion 3.0
PSEdition Core
SerializationVersion 1.1.0.1
BuildVersion 3.0.0.0
PSVersion 6.0.0-alpha
PSRemotingProtocolVersion 2.3
CLRVersion
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...}
GitCommitId v6.0.0-alpha.17-67-g42f2e3ca820d7fd7f9dd57f2bbb90e5da2ab2de0