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Category:   Application (Generic)  >   Microsoft Hyper-V Vendors:   Microsoft
Microsoft Hyper-V Instruction Emulation Access Control Bug Lets Local Users on a Guest System Gain Elevated Privileges on the Guest System
SecurityTracker Alert ID:  1038670
SecurityTracker URL:  http://securitytracker.com/id/1038670
CVE Reference:   CVE-2017-0193   (Links to External Site)
Date:  Jun 13 2017
Impact:   User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 7 SP1, 2008 R2 SP1, 2012, 8.1, 2012 R2, 10, 10 Version 1511, 2016, 10 Version 1607, 2008 SP2
Description:   A vulnerability was reported in Microsoft Hyper-V. A local user on the guest system can gain elevated privileges on the guest system.

A local user on the guest system that can exploit a separate vulnerability can trigger an access control flaw in Hyper-V instruction emulation to gain elevated privileges on the guest system.

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

The Microsoft advisories are available at:

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0193
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB3217845
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4022714
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4022715
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4022717
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4022718
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4022719
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4022722
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4022724
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4022726
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4022727

Vendor URL:  portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0193 (Links to External Site)
Cause:   Access control error
Underlying OS:  Windows (2008), Windows (2012), Windows (2016), Windows (7), Windows (8), Windows (10)

Message History:   None.


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