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

2010-12-16T00:00:00
ID SECURITYVULNS:DOC:25330
Type securityvulns
Reporter Securityvulns
Modified 2010-12-16T00:00:00

Description

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