[VulnDiscuss] rundll32.exe buffer overflow

"Rick" <[email protected]> Sun, 6 Jul 2003 12:26:58 -0600

Newsgroups	gmane.comp.security.vulnerabilities.watch.general,gmane.comp.security.bugtraq,gmane.comp.security.full-disclosure
Message-ID	<000001c343ec$3091cbf0$0100a8c0@ark>

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