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Category:   OS (Microsoft)  >   Windows Client-Server Run-time Subsystem Vendors:   Microsoft
Windows Client-Server Run-time Subsystem Process Token Management Flaw Lets Local Users Gain Elevated Privileges on the Target System
SecurityTracker Alert ID:  1035544
SecurityTracker URL:  http://securitytracker.com/id/1035544
CVE Reference:   CVE-2016-0151   (Links to External Site)
Date:  Apr 13 2016
Impact:   Execution of arbitrary code via local system, Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 8.1, 2012, 2012 R2, 10
Description:   A vulnerability was reported in Windows Client-Server Run-time Subsystem. A local user can gain elevated privileges on the target system.

A local user can run a specially crafted application to trigger a flaw in the management of process tokens in the Client-Server Run-time Subsystem (CSRSS) and execute arbitrary code. The code will run with administrator privileges.


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

Windows 8.1 for 32-bit Systems:

https://www.microsoft.com/downloads/details.aspx?familyid=4c09ca78-e142-4608-a4ee-a608942b888d

Windows 8.1 for x64-based Systems:

https://www.microsoft.com/downloads/details.aspx?familyid=24473cc4-c9d9-44ca-adb7-2c8607e1d0df

Windows 10 for 32-bit Systems:

https://support.microsoft.com/kb/3147461

Windows 10 for x64-based Systems:

https://support.microsoft.com/kb/3147461

Windows 10 Version 1511 for 32-bit Systems:

https://support.microsoft.com/kb/3147458

Windows 10 Version 1511 for x64-based Systems:

https://support.microsoft.com/kb/3147458

Windows Server 2012:

https://www.microsoft.com/downloads/details.aspx?familyid=758df08f-ba11-49c2-b9c8-572f02d1f65d

Windows Server 2012 R2:

https://www.microsoft.com/downloads/details.aspx?familyid=13f320cf-90fc-452d-89b6-acd90ac0136f

The Microsoft advisory is available at:

https://technet.microsoft.com/library/security/ms16-048

Vendor URL:  technet.microsoft.com/library/security/ms16-048 (Links to External Site)
Cause:   Access control error

Message History:   None.


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