bugtraq - Shattering By Example

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Date: Fri, 10 Oct 2003 15:16:20 +1300
From: "Brett Moore" <brett.moore@...urity-assessment.com>
To: "Bugtraq@...urityfocus. Com" <bugtraq@...urityfocus.com>
Subject: Shattering By Example

A new white paper on shatter attcks has been released and is available 
from our website;

www.security-assessment.com/Papers/Shattering_By_Example-V1_03102003.pdf 

This white paper includes information from both shatterseh2.txt and
shatterseh3.txt.

It also includes a shatter attack exploit against statusbars that uses
the following messages;
* WM_SETTEXT
* SB_SETTEXT
* SB_GETTEXTLENGTH
* SB_SETPARTS
* SB_GETPARTS

and demonstrates the following techniques.
* brute forcing a useable heap address
* placing structure information inside a process
* injecting shellcode to known location
* overwriting 4 bytes of a critical memory address

Any feedback or followup to this is most welcome,

Regards

Brett Moore
Network Intrusion Specialist
www.security-assessment.com