bugtraq - [VulnDiscuss] rundll32.exe buffer overflow

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Message-ID: <000001c343ec$3091cbf0$0100a8c0@ark>
Date: Sun, 6 Jul 2003 12:26:58 -0600
From: "Rick" <rikul@...erbee.com>
To: <bugtraq@...urityfocus.com>,
	<full-disclosure@...ts.netsys.com>,
	<vulnwatch@...nwatch.org>
Subject: [VulnDiscuss] rundll32.exe buffer overflow

Hi,

There is buffer overflow in rundll32.exe when it is passed big string as
routine name for a module. I've tested this on WindowsXP SP1. But other
version of windows might be vuln.  

rundll32.exe  advpack32.dll,<'A'x499>   

advpack32.dll is just example. Any executable/dll  will work. The
cmdline does get converted to UNICODE. And EIP ends up being 00410041. 

-
Rick Patel