VUPEN Security Research - Microsoft Windows Kernel "GetDCEx()" Memory Corruption Vulnerability (CVE-2010-0484)

2010-06-14T00:00:00
ID SECURITYVULNS:DOC:24061
Type securityvulns
Reporter Securityvulns
Modified 2010-06-14T00:00:00

Description

VUPEN Security Research - Microsoft Windows Kernel "GetDCEx()" Memory Corruption Vulnerability (CVE-2010-0484)

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

I. BACKGROUND

"Microsoft Windows is the operating system developed by Microsoft. As of May 2010, Windows was the most widely used system, with more than 90% of the worldwide usage share of operating systems according to Net Application."

II. DESCRIPTION

VUPEN Vulnerability Research Team discovered a vulnerability affecting Microsoft Windows.

The vulnerability is caused by a memory corruption within the kernel-mode device driver "Win32k.sys" when handling Device Contexts (DC) via the "GetDCEx()" function, which could be exploited by local attackers to gain ring0 privileges via a specially crafted application.

III. AFFECTED PRODUCTS

Microsoft Windows Vista Service Pack 2 Microsoft Windows Vista Service Pack 1 Microsoft Windows Vista x64 Edition Service Pack 2 Microsoft Windows Vista x64 Edition Service Pack 1 Microsoft Windows XP Service Pack 3 Microsoft Windows XP Service Pack 2 Microsoft Windows XP Professional x64 Edition Service Pack 2 Microsoft Windows Server 2008 (32-bit) Service Pack 2 Microsoft Windows Server 2008 (32-bit) Microsoft Windows Server 2008 (x64) Service Pack 2 Microsoft Windows Server 2008 (x64) Microsoft Windows Server 2008 (Itanium) Service Pack 2 Microsoft Windows Server 2008 (Itanium) Microsoft Windows Server 2003 Service Pack 2 Microsoft Windows Server 2003 SP2 (Itanium) Microsoft Windows Server 2003 x64 Edition Service Pack 2 Microsoft Windows 2000 Service Pack 4

IV. Binary Analysis & Proof-of-concept

In-depth binary analysis of the vulnerability and a proof-of-concept have been published by VUPEN through the VUPEN Binary Analysis & Exploits portal :

http://www.vupen.com/exploits/

V. SOLUTION

Apply MS10-032 security update: http://www.microsoft.com/technet/security/bulletin/ms10-032.mspx

VI. CREDIT

The vulnerability was discovered by Sebastien Renaud of VUPEN Security

VII. 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: http://www.vupen.com/english/services/

  • VUPEN Binary Analysis & Exploits Service : http://www.vupen.com/exploits/

  • VUPEN Web Application Security Scanner (WASS): http://www.vupen.com/english/wass/

VIII. REFERENCES

http://www.vupen.com/english/advisories/2010/1389 http://www.microsoft.com/technet/security/bulletin/ms10-032.mspx http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-0484

IX. DISCLOSURE TIMELINE

2009-11-25 - Vendor notified 2009-11-25 - Vendor response 2009-11-30 - Status update received 2010-01-07 - Status update received 2010-03-31 - Status update received 2010-04-29 - Status update received 2010-06-08 - Coordinated public Disclosure