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Category:   OS (Microsoft)  >   Windows Kernel Vendors:   Microsoft
Windows Kernel-Mode Driver Lets Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1029600
SecurityTracker URL:  http://securitytracker.com/id/1029600
CVE Reference:   CVE-2014-0262   (Links to External Site)
Date:  Jan 14 2014
Impact:   Root access via local system, User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 7 SP1, 2008 R2 SP1
Description:   A vulnerability was reported in the Windows Kernel-Mode Driver. A local user can obtain elevated privileges on the target system.

The Windows kernel-mode driver (win32k.sys) does not properly use window handle thread-owned objects. A local user can run a specially crafted application to execute arbitrary commands on the target system with elevated privileges.

xiaohong shi of Qihoo reported this vulnerability.

Impact:   A local user can obtain elevated privileges on the target system.
Solution:   The vendor has issued the following fixes:

Windows 7 for 32-bit Systems Service Pack 1:

http://www.microsoft.com/downloads/details.aspx?familyid=77789d60-a152-4cf4-a55f-05ce0ca0413d

Windows 7 for x64-based Systems Service Pack 1:

http://www.microsoft.com/downloads/details.aspx?familyid=160b27c2-590a-4597-a684-2d1f813dda01

Windows Server 2008 R2 for x64-based Systems Service Pack 1:

http://www.microsoft.com/downloads/details.aspx?familyid=5b7d37eb-8c33-49bc-8a10-68e04f6e38be

Windows Server 2008 R2 for Itanium-based Systems Service Pack 1:

http://www.microsoft.com/downloads/details.aspx?familyid=10a3e7be-29df-4f34-abd2-871d9193c927

Windows Server 2008 R2 for x64-based Systems Service Pack 1:

http://www.microsoft.com/downloads/details.aspx?familyid=5b7d37eb-8c33-49bc-8a10-68e04f6e38be

A restart is required.

The Microsoft advisory is available at:

http://technet.microsoft.com/en-us/security/bulletin/ms14-003

Vendor URL:  technet.microsoft.com/en-us/security/bulletin/ms14-003 (Links to External Site)
Cause:   Access control error
Underlying OS:  

Message History:   None.


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