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Category:   OS (Microsoft)  >   Windows DLL (Any) Vendors:   Microsoft
Microsoft Device Guard Flaw Lets Local Users Bypass Code Integrity Policy
SecurityTracker Alert ID:  1039340
SecurityTracker URL:  http://securitytracker.com/id/1039340
CVE Reference:   CVE-2017-8746   (Links to External Site)
Date:  Sep 13 2017
Impact:   Modification of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2016, 10 Version 1607, 10 Version 1703
Description:   A vulnerability was reported in Microsoft Device Guard. A local user can bypass security restrictions.

A local user can inject specially crafted code into a trusted PowerShell process to bypass the Device Guard Code Integrity policy on the target system.

Impact:   A local user can bypass Code Integrity controls on the target 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-2017-8746
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4038782
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4038788

Vendor URL:  portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8746 (Links to External Site)
Cause:   Access control error

Message History:   None.


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