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Category:   OS (Microsoft)  >   Windows DLL (Any) Vendors:   Microsoft
Microsoft WebDAV Client Input Validation Flaw Lets Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1034980
SecurityTracker URL:  http://securitytracker.com/id/1034980
CVE Reference:   CVE-2016-0051   (Links to External Site)
Updated:  Feb 10 2016
Original Entry Date:  Feb 9 2016
Impact:   Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): Vista SP2, 2008 SP2, 7 SP1, 2008 R2 SP1, 8, 8.1, 2012, 2012 R2, RT 8.1, 10; and prior service packs
Description:   A vulnerability was reported in Microsoft WebDAV Client. A local user can obtain elevated privileges on the target system.

A local user can send specially crafted data to trigger a flaw in the Microsoft Web Distributed Authoring and Versioning (WebDAV) client and gain elevated privileges on the target system.

Tamas Koczka of Tresorit reported this vulnerability.

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

Windows Vista Service Pack 2:

https://www.microsoft.com/downloads/details.aspx?familyid=5e4f26a1-609b-401a-9f53-38e401aee3ce

Windows Vista x64 Edition Service Pack 2:

https://www.microsoft.com/downloads/details.aspx?familyid=b70ac8f0-7f25-424c-8ec8-8f8fd4fcd4b5

Windows Server 2008 for 32-bit Systems Service Pack 2:

https://www.microsoft.com/downloads/details.aspx?familyid=0b862e8f-425d-41cb-903c-bc10213da220

Windows Server 2008 for x64-based Systems Service Pack 2:

https://www.microsoft.com/downloads/details.aspx?familyid=87a6d364-1c9e-4719-8f90-d0a75966757f

Windows 7 for 32-bit Systems Service Pack 1:

https://www.microsoft.com/downloads/details.aspx?familyid=d33f8c50-1bb5-4675-bd1f-d0204e22507c

Windows 7 for x64-based Systems Service Pack 1:

https://www.microsoft.com/downloads/details.aspx?familyid=eb2269dd-ed3f-4b30-a162-109b80c186ef

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

https://www.microsoft.com/downloads/details.aspx?familyid=e1922932-c47e-4fec-af23-eeebd616bff5

Windows 8.1 for 32-bit Systems:

https://www.microsoft.com/downloads/details.aspx?familyid=2a7c322c-c313-4159-8cea-2831237931cc

Windows 8.1 for x64-based Systems:

https://www.microsoft.com/downloads/details.aspx?familyid=8bcc083b-db46-4029-a75a-565e03dae75a

Windows Server 2012:

https://www.microsoft.com/downloads/details.aspx?familyid=86042a90-adea-4d29-ad8a-4e04ccddc3dd

Windows Server 2012 R2:

https://www.microsoft.com/downloads/details.aspx?familyid=a743eb03-89e8-428a-90ea-884aefb5f6cc

The Microsoft advisory is available at:

https://technet.microsoft.com/library/security/ms16-016

Vendor URL:  technet.microsoft.com/library/security/ms16-016 (Links to External Site)
Cause:   Input validation error

Message History:   None.


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