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Category:   OS (Microsoft)  >   Windows Kernel Vendors:   Microsoft
Windows Kernel Bugs Let Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1031899
SecurityTracker URL:  http://securitytracker.com/id/1031899
CVE Reference:   CVE-2015-0073, CVE-2015-0075   (Links to External Site)
Date:  Mar 10 2015
Impact:   Root access via local system, User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2003 SP2, Vista SP2, 2008 SP2, 7 SP1, 2008 R2 SP1, 8, 8.1, 2012, 2012 R2, RT, RT 8.1; and prior service packs
Description:   Several vulnerabilities were reported in Windows Kernel. A local user can obtain elevated privileges on the target system.

Windows Registry Virtualization does not properly restrict user access for virtual store modification [CVE-2015-0073]. A local user can run a specially crafted application to execute arbitrary code with the privileges of the target user.

James Forshaw of Google Project Zero reported this vulnerability.

Windows does not properly validate and enforce impersonation levels [CVE-2015-0075]. A local user can bypass user account checks to gain elevated privileges.

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

A patch matrix is available in the vendor's advisory.

The Microsoft advisory is available at:

https://technet.microsoft.com/library/security/ms15-025

Vendor URL:  technet.microsoft.com/library/security/ms15-025 (Links to External Site)
Cause:   Access control error

Message History:   None.


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