bugtraq - Ivanti Workspace Control Application Whitelist bypass via PowerGrid /RWS command line argument

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Message-ID: <4afa1bfb-dcc4-ccbd-8380-1419c7cc132f@securify.nl>
Date: Mon, 1 Oct 2018 17:26:06 +0200
From: "Securify B.V." <lists@...urify.nl>
To: bugtraq@...urityfocus.com
Subject: Ivanti Workspace Control Application Whitelist bypass via PowerGrid
 /RWS command line argument

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Ivanti Workspace Control Application Whitelist bypass via PowerGrid /RWS
command line argument
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Yorick Koster, August 2018

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Abstract
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It was found that the PowerGrid application will execute rundll32.exe
from a relative path when it is started with the /RWS command line
option. An attacker can abuse this issue to bypass Application
Whitelisting in order to run arbitrary code on the target machine.

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Tested versions
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This issue was successfully verified on Ivanti Workspace Control version
10.2.700.1.

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Fix
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This issue was resolved in Ivanti Workspace Control version 10.2.950.0.
PowerGrid now uses the GetSystemDirectory() function to construct an
absolute path to rundll32.exe.

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Details
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https://www.securify.nl/advisory/SFY20180801/ivanti-workspace-control-application-whitelist-bypass-via-powergrid-_rws-command-line-argument.html