Date: Sat, 04 Aug 2007 14:19:34 +0200
From: "Michal Bucko" <michal.bucko@...ytt.com>
To: bugtraq@...urityfocus.com
Subject: [ELEYTT] 4SIERPIEN2007


Eleytt Research
www.eleytt.com




Overview:
====================
Michal Bucko, Eleytt, www.eleytt.com/michal.bucko
Shyaam Sundhar, Eleytt
Tomasz Galdys, Eleytt



Credit:
====================

Michal Bucko, Eleytt, www.eleytt.com/michal.bucko







Vulnerability Table
===================

1. Windows Calendar (Vista) ICS File Denial of Service Vulnerability
2. Toolbar vulnerabilities:

	
a) Toolbar Gaming IE Toolbar Denial of Service Vulnerability
	
b) ExportNation IE Toolbar Denial of Service Vulnerability
	
c) Advanced Searchbar Denial of Service Vulnerability



Information Table
=================

1. OpenOffice 2.2 Multiple File Extensions Handling Denial of Service Issue







Vulnerability Details
=========================
=========================



1. Windows Calendar (Vista) ICS File Denial of Service Vulnerability
   
=================================================================

Specially malformed ISC file, once imported to Windows Calendar, 
leads to Windows Calendar to a crash (after the remainder is set). 
Windows Calendar crashes every each time Vista is rebooted. The 
vulnerability stems from NULL pointer dereference and has been 
confirmed on fully updated Windows Vista. Successful at

MSRC has been informed and confirmed the situation. Both, Eleytt 
and MSRC consider this issue of low impact.




2. Toolbar vulnerabilities
   
=======================


   
a) The vulnerability in 'CallCmd' function in toolbar_gaming.dll
has its roots in NULL pointer dereference, which results in 
denial of service conditions.

b) The vulnerability lies in Toolbar.DLL library, in 'isChecked' 
function.
   
 
The registers' values are below:

EIP 01838C70
EAX 00000000
.
ESP 001BA90C -> Asc: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
 

The crash itself happens here:  
   
1838C70	MOV ECX,[EAX+188]	


Stack dump is full of 'A', but SEH hasn't been overwritten. The problem
lies in NULL pointer dereference. The vulnerability, therefore, hasn't 
been proven exploitable. Arbitrary code execution is probably impossible.



c) The vulnerability lies in Toolbar.DLL library, in 'isChecked' 
function. The exactly the same kind of vulnerability that described
in b).







Information Table
=================


1. OpenOffice 2.2 Multiple File Extensions Handling Denial of Service Issue
   
========================================================================
   
An issue in OpenOffice 2.2 Multiple File Extension Handling leads to denial 
of service conditions. Due to the minimum severity of the issue, the 
information is provided in Information Table. The issue does not allow code
execution. Eleytt provides exemplary PoC exploits for this issue for 
reponsible security companies only.   













Meet Our Inside-Out Penetration Testing Program!
===============================================



Eleytt Inside-Out
http://eleytt.com/en/offer/inside-out-program.html


If you
------

run a web site, eCommerce business
have your internet business
built a CMS or CRM solution
are obliged by your company to run specialized security audit



We are offering you the best of breed security audits of your 
web applications, of your CMS solutions. We do penetration 
testing and analyze your IT infrastructure security. Such 
audit will help you avoid costly business disruptions.



What's so interesting about our program?
----------------------------------------

You don't pay any money until we find vulnerabilities in your 
web applications, vulnerabilities that might have serious 
consequences. The aim of our Program is to put in motion a term
'practical security'. Thanks to Eleytt Inside-Out Program you 
will see that your security is seriously improved and you don't
waste your money.


Feel free to contact us:

business <at> eleytt <dot> com









Eleytt - Company Information
============================

Eleytt Corporation is specialized in penetration testing, vulnerability
development, advanced reverse engineering and exploitation techniques.
Eleytt provides various security-related services: risk assessment,
security policy, security assurance, incident management, web
application security testing, continuous security assurance programs.
Eleytt provides security audits for financial institutions and e-commerce.
Eleytt provides an in-depth security analysis - experienced security
experts analyze your source code, analyze your application, analyze your
web application. Eleytt runs security programs for financial institutons
and e-commerce.

We have the mission to improve the security level of software and web
applications. It is us who help you implement more secure applications.
We help you understand the risk and deploy security solutions. We help
you avoid costly business disruptions.







These are the questions, which might help you understand how we work:
=====================================================================

Want to get your web site checked for security vulnerabilities?

Your server requires real penetration testing?

Interested in Eleytt Business Continuity Program?

Interested in Eleytt Application Security Program?






For more information, please use:

www.eleytt.com









DISCLAIMER
==========

This document and all the information it contains are provided "as is",
for educational purposes only, without warranty of any kind, whether
express or implied.

The authors reserve the right not to be responsible for the topicality,
correctness, completeness or quality of the information provided in
this document. Liability claims regarding damage caused by the use of
any information provided, including any kind of information which is
incomplete or incorrect, will therefore be rejected.

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