Re: Getting Base Address using the Structured Exception Handler

["Nexus" <nexus () patrol i-way co uk>]

----- Original Message ----- 
From: <dave () immunitysec com>
To: "Nobody Mind" <cod3po3t () yahoo com>
Cc: <vuln-dev () securityfocus com>
Sent: Wednesday, June 25, 2003 10:28 PM
Subject: Re: Getting Base Address using the Structured Exception Handler

[snip]

> If you're looking for links to shellcode that does this, look for a
> chunked asp heap overflow exploit written by the chinese...a lot of
> chinese shellcode does (and has done for years) this trick. Most likely
[snip]

A [shellcode only] example of this can be seen here:
http://www.darklab.org/archive/msg00183.html

A couple of useful links that give an overview of the SEH itself:
http://www.jorgon.freeserve.co.uk/ExceptFrame.htm
http://www.microsoft.com/msj/0197/Exception/Exception.aspx

FWIW, you may want to hunt around some VX source as the VX folks have been
doing this for ummmm... ages ;-)
http://29a.host.sk/ezine.html is probably a good start.

Cheers,
            JJ