Security restrictions bypass in Microsoft Device Guard



Published: 2018-04-10
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-0966
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Windows
Operating systems & Components / Operating system

Windows Server
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Security Feature Bypass

EUVDB-ID: #VU11739

Risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-0966

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass antimalware protection.

The vulnerability exists in the Device Guard when processing files. A remote attacker can create a specially crafted file that appears to be signed for the application.

Successful exploitation of the vulnerability may allow an attacker to bypass Device Guard protection and execute malicious file on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10

Windows Server: 2016

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0966


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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



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