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Block a Specific Snapin?

Posted on 2015-02-23
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Last Modified: 2015-02-27
Is anyone familiar with a way to block a specific PowerShell Snapin from being loaded?  Basically I have an Exchange 2010 script that won't run properly through an imported implicit remote session.  It will work fine if the admin tools are installed and we use the typical Connect-ExchangeServer to import the cmdlets.  The problem is this also gives the user access to Add-PSSnapin Microsoft.Exchange.Management.PowerShell.E2010.  Loading the commands in this way bypasses RBAC and thus gives the operator access to commands outside their assigned RBAC roles.
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Question by:nashiooka
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Will Szymkowski earned 1500 total points
ID: 40626114
If the user is a local administrator on the machine there is really no way around this. When users import the modules or snapins into the session they should only be able to access cmdlets that their account has rights to. So if someone with no Exchange Admin rights when they type in the cmdlet Get-Mailbox it will error back stating that this cmdlet does not exist because they do not have permissions to it.

This happens even after the module / snapin has been imported into the session.

Will.
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by:nashiooka
ID: 40626171
I appreciate your reply.  Loading the local snapin bypasses RBAC.  RBAC is not the same as ACL based permissions that may be on the underlying AD objects, but of course I don't want to test my ACL's by making inappropriate commands visible.  I view that as a violation of least privilege and an unnecessary risk.
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