VUPEN Security Research - Microsoft Office Excel Ghost Record Type Parsing Vulnerability (CVE-2010-3242)

2010-10-16T00:00:00
ID SECURITYVULNS:DOC:24919
Type securityvulns
Reporter Securityvulns
Modified 2010-10-16T00:00:00

Description

VUPEN Security Research - Microsoft Office Excel Ghost Record Type Parsing Vulnerability (CVE-2010-3242)

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

I. BACKGROUND

Microsoft Office Excel is a powerful tool you can use to create and format spreadsheets, and analyze and share information to make more informed decisions. With the Microsoft Office Fluent user interface, rich data visualization, and PivotTable views, professional-looking charts are easier to create and use.

II. DESCRIPTION

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

The vulnerability is caused by an input validation error when processing certain elements in a Ghost record, which could be exploited by remote attackers to execute arbitrary code by tricking a user into opening a specially crafted Excel document.

III. AFFECTED PRODUCTS

Microsoft Office 2008 for Mac Microsoft Office 2004 for Mac Microsoft Office XP Service Pack 3 Open XML File Format Converter for Mac

IV. Binary Analysis & Exploits/PoCs

In-depth binary analysis of the vulnerabilities fixed by Microsoft in October 2010 and code execution exploits or PoCs are available through the VUPEN Binary Analysis & Exploits Service :

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

V. VUPEN Threat Protection Program

Governments and Intelligence agencies who 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 MS10-080 security update.

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/advisories/2010/2627 http://www.microsoft.com/technet/security/bulletin/ms10-080.mspx http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-3242

X. DISCLOSURE TIMELINE

2010-04-02 - Vendor notified 2010-04-02 - Vendor response 2010-08-25 - Status update received 2010-10-12 - Coordinated public Disclosure