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Category:   OS (Microsoft)  >   Windows DLL (Any) Vendors:   Microsoft
Microsoft Windows Device Guard Flaw Lets Local Users Bypass Security Restrictions
SecurityTracker Alert ID:  1041265
SecurityTracker URL:  http://securitytracker.com/id/1041265
CVE Reference:   CVE-2018-8222   (Links to External Site)
Date:  Jul 10 2018
Impact:   Modification of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2016, 10, 10 Version 1607, 10 Version 1703, 10 Version 1709, 10 Version 1803
Description:   A vulnerability was reported in Microsoft Windows Device Guard. A local user can bypass security restrictions.

A local user that can inject code into a script that is trusted by the Code Integrity policy can bypass the Microsoft Windows Device Guard and inject code into a trusted PowerShell process.

Matt Graeber of SpecterOps reported this vulnerability.

Impact:   A local user can bypass security controls on the target system to potentially inject code into a trusted PowerShell process.
Solution:   The vendor has issued a fix.

The Microsoft advisories are available at:

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8222

Vendor URL:  portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8222 (Links to External Site)
Cause:   Access control error

Message History:   None.


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