Vulnerability identifier: #VU8327

Vulnerability risk: Low

CVSSv3.1: 3.6 [CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-8746

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Windows
Operating systems & Components / Operating system
Windows Server
Operating systems & Components / Operating system

Vendor: Microsoft

Description
The vulnerability allows a local attacker to bypass security restrictions on the target system.

The vulnerability exists due to an error in Device Guard. A local attacker can inject code into a trusted PowerShell process that is trusted by the Code Integrity policy and bypass the Device Guard Code Integrity policy on the local machine.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows: 10

Windows Server: 2016

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8746

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Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.