OSEC

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rundll32.exe buffer overflow

From: Rick (rikulbellsouth.net)
Date: Sun Jul 06 2003 - 13:42:42 CDT


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