#VU6046 Improper input validation in Windows and Windows Server - CVE-2017-0109

Vulnerability identifier: #VU6046

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-0109

CWE-ID: CWE-20

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 remote attacker with access to guest operating system to compromise the host system.

The vulnerability exists due to improper input validation in Windows Hyper-V. An attacker with access to guest operating system can execute arbitrary code on the host operating system.

Successful exploitation of this vulnerability may allow an attacker to escalate privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: Vista, 7, 8.1, 10

Windows Server: 2008 R2 - 2008, 2012 R2 - 2012, 2016 10.0.14393.10

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External links
https://technet.microsoft.com/en-us/library/security/MS17-008

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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