VUPEN Security Research - Microsoft Office Publisher "pubconv.dll" Array Indexing Vulnerability (VUPEN-SR-2010-206)



VUPEN Security Research - Microsoft Office Publisher "pubconv.dll" Array Indexing Vulnerability (VUPEN-SR-2010-206)

http://www.vupen.com/english/research.php


I. BACKGROUND
---------------------

"Microsoft Publisher, is a desktop publishing application from Microsoft. It is
an entry-level application, differing from Microsoft Word in that the emphasis
is placed on page layout and design rather than text composition and proofing."
from wikipedia.org


II. DESCRIPTION
---------------------

VUPEN Vulnerability Research Team discovered a critical vulnerability
in Microsoft Office Publisher.

The vulnerability is caused by an array indexing error in "pubconv.dll" when
processing a malformed value within a Publisher document, which could be
exploited by remote attackers to execute arbitrary code by tricking a user
into opening a malicious PUB file.

Note: The Publisher file format is not publicly documented.


III. AFFECTED PRODUCTS
---------------------------

Microsoft Publisher 2003 Service Pack 3
Microsoft Publisher 2002 Service Pack 3


IV. Binary Analysis & Exploits/PoCs
---------------------------------------

In-depth binary analysis of the vulnerability and a code execution exploit
or proof-of-concept are available through the VUPEN Binary Analysis &
Exploits Service :

http://www.vupen.com/english/services/ba-index.php


V. VUPEN Threat Protection Program
-----------------------------------

Organizations and corporations which are members of the VUPEN Threat
Protection Program (TPP) have been alerted about the vulnerability when it
was discovered by VUPEN, and have received a detailed detection guidance
to proactively protect national and critical infrastructures against
potential attacks exploiting this vulnerability:

http://www.vupen.com/english/services/tpp-index.php


VI. SOLUTION
----------------

Apply MS10-103 security updates.


VII. CREDIT
--------------

This vulnerability was discovered by Chaouki Bekrar of VUPEN Security


VIII. ABOUT VUPEN Security
---------------------------

VUPEN is a leading IT security research company providing vulnerability
management and security intelligence solutions which enable enterprises
and institutions to eliminate vulnerabilities before they can be exploited,
ensure security policy compliance and meaningfully measure and manage risks.

Governmental and federal agencies, and global enterprises in the financial
services, insurance, manufacturing and technology industries rely on VUPEN
to improve their security, prioritize resources, cut time and costs, and
stay ahead of the latest threats.

* VUPEN Vulnerability Notification Service (VNS) :
http://www.vupen.com/english/services/vns-index.php

* VUPEN Binary Analysis & Exploits Service (BAE) :
http://www.vupen.com/english/services/ba-index.php

* VUPEN Threat Protection Program for Govs (TPP) :
http://www.vupen.com/english/services/tpp-index.php

* VUPEN Web Application Security Scanner (WASS) :
http://www.vupen.com/english/services/wass-index.php


IX. REFERENCES
----------------------

http://www.vupen.com/english/research-vuln.php
http://www.microsoft.com/technet/security/bulletin/ms10-103.mspx
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-2571


X. DISCLOSURE TIMELINE
-----------------------------

2010-04-26 - Vendor notified
2010-04-26 - Vendor response
2010-12-08 - Status update received
2010-12-14 - Coordinated disclosure



Relevant Pages

  • SecurityFocus Microsoft Newsletter #176
    ... MICROSOFT VULNERABILITY SUMMARY ... Microsoft Windows XP HCP URI Handler Arbitrary Command Execu... ... PHPNuke Category Parameter SQL Injection Vulnerability ... Microsoft Baseline Security Analyzer Vulnerability Identific... ...
    (Focus-Microsoft)
  • SecurityFocus Microsoft Newsletter #242
    ... MICROSOFT VULNERABILITY SUMMARY ... PostNuke Blocks Module Directory Traversal Vulnerability ... Groove Networks Groove Virtual Office COM Object Security By... ... The Microsoft Windows IPV6 TCP/IP stack is prone to a "loopback" condition initiated by sending a TCP packet with the "SYN" flag set and the source address and port spoofed to equal the destination source and port. ...
    (Focus-Microsoft)
  • [NT] Cumulative Security Update for Internet Explorer (MS04-025)
    ... Get your security news from a reliable source. ... * Microsoft Windows NT Workstation 4.0 Service Pack 6a ... Navigation Method Cross-Domain Vulnerability ...
    (Securiteam)
  • SecurityFocus Microsoft Newsletter # 87
    ... Meeting IT Security Benchmarks Through IT Audits ... MICROSOFT VULNERABILITY SUMMARY ... Bypassing Windows 2000 Domain Password settings ...
    (Focus-Microsoft)
  • SecurityFocus Microsoft Newsletter #75
    ... Microsoft's Internet Security & Acceleration Server with fault-tolerance ... The Microsoft UPnP Vulnerability ... Relevant URL: ...
    (Focus-Microsoft)