VUPEN Security Research - Microsoft Internet Explorer "mshtml.dll" Dangling Pointer Vulnerability (CVE-2011-0036)

2011-02-14T00:00:00
ID SECURITYVULNS:DOC:25699
Type securityvulns
Reporter Securityvulns
Modified 2011-02-14T00:00:00

Description

VUPEN Security Research - Microsoft Internet Explorer "mshtml.dll" Dangling Pointer Vulnerability (CVE-2011-0036)

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

I. BACKGROUND

"Microsoft Internet Explorer is a web browser developed by Microsoft and included as part of the Microsoft Windows line of operating systems with more than 60% of the worldwide usage share of web browsers." (Wikipedia)

II. DESCRIPTION

VUPEN Vulnerability Research Team discovered a critical vulnerability in Microsoft Internet Explorer.

The vulnerability is caused by a dangling pointer in the "mshtml.dll" library when handling certain object manipulations, which could be exploited by remote attackers to execute arbitrary code by tricking a user into visiting a malicious web page.

CVSS Score: 10 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

III. AFFECTED PRODUCTS

Microsoft Internet Explorer 8 Microsoft Internet Explorer 7 Microsoft Internet Explorer 6

Microsoft Windows 7 (32-bit) Microsoft Windows 7 (64x) Microsoft Windows Server 2003 Service Pack 2 Microsoft Windows Server 2003 SP2 (Itanium) Microsoft Windows Server 2003 x64 Edition Service Pack 2 Microsoft Windows Server 2008 (32-bit) Microsoft Windows Server 2008 (32-bit) Service Pack 2 Microsoft Windows Server 2008 (64x) Microsoft Windows Server 2008 (64x) Service Pack 2 Microsoft Windows Server 2008 (Itanium) Microsoft Windows Server 2008 (Itanium) Service Pack 2 Microsoft Windows Server 2008 R2 (64x) Microsoft Windows Server 2008 R2 (Itanium) Microsoft Windows Vista Service Pack 1 Microsoft Windows Vista Service Pack 2 Microsoft Windows Vista x64 Edition Service Pack 1 Microsoft Windows Vista x64 Edition Service Pack 2 Microsoft Windows XP Professional x64 Edition Service Pack 2 Microsoft Windows XP Service Pack 3

IV. Binary Analysis & Exploits/PoCs

In-depth binary analysis of the vulnerability and a code execution exploit with ASLR and DEP bypass are available through the VUPEN Binary Analysis & Exploits Service :

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

V. VUPEN Threat Protection Program

To proactively protect critical networks and infrastructures against unpatched vulnerabilities and reduce risks related to zero-day attacks, VUPEN shares its vulnerability research with governments and organizations members of the VUPEN Threat Protection Program (TPP).

VUPEN TPP customers receive fully detailed and technical reports about security vulnerabilities discovered by VUPEN and in advance of their public disclosure.

VUPEN TPP customers have been protected against this vulnerability 8 months before the release of the Microsoft patch.

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

VI. SOLUTION

Apply the MS11-003 security update.

VII. CREDIT

This vulnerability was discovered by Nicolas Joly 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.vupen.com/english/advisories/2011/0318 http://www.microsoft.com/technet/security/bulletin/MS11-003.mspx

X. DISCLOSURE TIMELINE

2010-06-15 - Vulnerability Discovered by VUPEN 2010-06-17 - VUPEN TPP customers informed 2010-xx-xx - Vulnerability rediscovered by third parties 2011-02-08 - MS11-003 security update available