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Category:   Application (Generic)  >   Microsoft Hyper-V Vendors:   Microsoft
Microsoft Hyper-V Input Validation Flaw Lets Local Users on a Guest System Gain Elevated Privileges on the Host System
SecurityTracker Alert ID:  1039093
SecurityTracker URL:  http://securitytracker.com/id/1039093
CVE Reference:   CVE-2017-8664   (Links to External Site)
Date:  Aug 8 2017
Impact:   Execution of arbitrary code via local system, User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2012, 8.1, 2012 R2, 10, 10 Version 1511, 2016, 10 Version 1607, 10 Version 1703
Description:   A vulnerability was reported in Microsoft Hyper-V. A local user on the guest system can gain elevated privileges on the host system.

A local user on the guest system can run a specially crafted application to exploit an input validation flaw to execute arbitrary code on the Hyper-V host operating system.

Peter Hlavaty (@zer0mem), KeenLab, Tencent reported this vulnerability.

Impact:   A local user on the guest system can gain elevated privileges on the host 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-2017-8664

Vendor URL:  portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8664 (Links to External Site)
Cause:   Input validation error
Underlying OS:  Windows (2012), Windows (2016), Windows (8), Windows (10)

Message History:   None.


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