Get current user's credentials object in Powershell without prompting

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I have a Powershell script that is going to be run through an automation tool against multiple servers.

It works fine on Windows machines, as the remote calls use the tool's service account without any need for prompting or exposing any credentials in code.

This script also runs against Linux machines via SSH using the SharpSSH package. SharpSSH does not automatically use the Powershell user's credentials but requires either a username and password, an RSA key file, or a PSCredential object.

I can't prompt for credentials using Get-Credential, because it's being run through the automation tool. I don't want to expose the username and password in code or have an RSA key sitting out there. I would like to construct a PSCredential object from the current Powershell user (the service account).

Trying [System.Net.CredentialCache]::DefaultNetworkCredentials shows a blank, and [System.Security.Principal.WindowsIdentity]::GetCurrent() doesn't provide the object or information I need.

Does anyone have a method for creating a PSCredential object from the current user? Or maybe a completely different alternative for this problem?

Many thanks!

sharpssh remote-access credentials powershell
4 Answers

"Trying [System.Net.CredentialCache]::DefaultNetworkCredentials shows a blank, and [System.Security.Principal.WindowsIdentity]::GetCurrent() doesn't provide the object or information I need."

You already have your answer. I use this to pass the currently logged in user's credentials along in several scripts:

$Credentials = [System.Net.CredentialCache]::DefaultNetworkCredentials
$Username = $Credentials.UserName
$Password = $Credentials.Password

If you try to dump them to any kind of readable output, those values are empty when you dump them (for obvious security reasons), however they do work where you need a PSCredential object.

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