VUPEN Security Research - Microsoft Windows Kernel "GetDCEx()" Memory Corruption Vulnerability (CVE-2010-0484)
"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."
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.
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
In-depth binary analysis of the vulnerability and a proof-of-concept have been published by VUPEN through the VUPEN Binary Analysis & Exploits portal :
Apply MS10-032 security update: http://www.microsoft.com/technet/security/bulletin/ms10-032.mspx
The vulnerability was discovered by Sebastien Renaud of VUPEN Security
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VUPEN Binary Analysis & Exploits Service : http://www.vupen.com/exploits/
VUPEN Web Application Security Scanner (WASS): http://www.vupen.com/english/wass/
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
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