Microsoft Windows Kernel 'Win32k.sys' Keyboard Layout Local Privilege Escalation Vulnerability

Bugtraq ID:	50763
Class:	Design Error
CVE:
Remote:	No
Local:	Yes
Published:	Nov 22 2011 12:00AM
Updated:	Nov 22 2011 12:00AM
Credit:	Instruder
Vulnerable:	Microsoft Windows XP Tablet PC Edition SP3 Microsoft Windows XP Tablet PC Edition SP2 Microsoft Windows XP Tablet PC Edition SP1 Microsoft Windows XP Tablet PC Edition Microsoft Windows XP Service Pack 3 0 Microsoft Windows XP Professional x64 Edition SP3 Microsoft Windows XP Professional x64 Edition SP2 Microsoft Windows XP Professional x64 Edition Microsoft Windows XP Professional SP3 Microsoft Windows XP Professional SP2 Microsoft Windows XP Professional SP1 Microsoft Windows XP Professional Microsoft Windows XP Media Center Edition 2005 SP3 Microsoft Windows XP Media Center Edition SP3 Microsoft Windows XP Media Center Edition SP2 Microsoft Windows XP Media Center Edition SP1 Microsoft Windows XP Media Center Edition Microsoft Windows XP Home SP3 Microsoft Windows XP Home SP2 Microsoft Windows XP Home SP1 Microsoft Windows XP Home Microsoft Windows XP Gold 0 Microsoft Windows XP Embedded Update Rollup 1.0 Microsoft Windows XP Embedded SP2 Feature Pack 2007 0 Microsoft Windows XP Embedded SP3 Microsoft Windows XP Embedded SP2 Microsoft Windows XP Embedded SP1 Microsoft Windows XP Embedded Microsoft Windows XP 64-bit Edition Version 2003 SP1 Microsoft Windows XP 64-bit Edition Version 2003 Microsoft Windows XP 64-bit Edition SP1 Microsoft Windows XP 64-bit Edition Microsoft Windows XP Gold Tablet Pc Microsoft Windows XP Gold Professional Microsoft Windows XP Gold Media Center Microsoft Windows XP Gold Embedded Microsoft Windows XP 0 Microsoft Windows XP 0 Microsoft Windows XP - Sp1 X64 Microsoft Windows XP - Gold X64 Microsoft Windows XP - Gold Home Microsoft Windows XP - Gold 64-Bit-2002 Microsoft Windows 7 XP Mode 0 Microsoft Windows 7 Ultimate 0 Microsoft Windows 7 Starter 0 Microsoft Windows 7 Professional 0 Microsoft Windows 7 Home Premium 0 Microsoft Windows 7 Home Premium - Sp1 X64 Microsoft Windows 7 Home Premium - Sp1 X32 Microsoft Windows 7 for x64-based Systems SP1 Microsoft Windows 7 for x64-based Systems 0 Microsoft Windows 7 for Itanium-based Systems SP1 Microsoft Windows 7 for Itanium-based Systems 0 Microsoft Windows 7 for 32-bit Systems SP1 Microsoft Windows 7 for 32-bit Systems 0 Microsoft Windows 7 RC Microsoft Windows 7 beta Microsoft Windows 7
Not Vulnerable:

Microsoft Windows Kernel 'Win32k.sys' Keyboard Layout Local Privilege Escalation Vulnerability

Microsoft Windows is prone to a local privilege-escalation vulnerability.

A local attacker can exploit this issue to execute arbitrary code with kernel-level privileges. Successful exploits will result in the complete compromise of affected computers. Failed exploit attempts may cause a denial-of-service condition.

Microsoft Windows Kernel 'Win32k.sys' Keyboard Layout Local Privilege Escalation Vulnerability

The following proof of concept is available:

• /data/vulnerabilities/exploits/50763.txt

Microsoft Windows Kernel 'Win32k.sys' Keyboard Layout Local Privilege Escalation Vulnerability

Solution:
Currently we are not aware of any vendor-supplied patches. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Microsoft Windows Kernel 'Win32k.sys' Keyboard Layout Local Privilege Escalation Vulnerability

References:

• Microsoft Windows Homepage (Microsoft )