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Date: Wed, 9 Jun 2010 01:32:06 +0200 From: "VUPEN Security Research" <advisories@...en.com> To: <bugtraq@...urityfocus.com> Subject: VUPEN Security Research - Microsoft Windows Kernel "GetDCEx()" Memory Corruption Vulnerability (CVE-2010-0484) 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
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