Vulnerability identifier: #VU49142

Vulnerability risk: Low

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

CVE-ID: CVE-2020-17008

CWE-ID: CWE-119

Exploitation vector: Local

Exploit availability: Yes

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

Vendor: Microsoft

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error within the user-mode printer driver host process splwow64.exe within the Windows kernel. A local user can run a specially crafted program to trigger untrusted pointer dereference and execute arbitrary code on the system with elevated privileges.

Note, this vulnerability exists due to incomplete patch for vulnerability #VU28018.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Windows: 10 - 10 Mobile, 8.1 - 8.1 RT

Windows Server: 2012 - 2019 2004

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External links
http://bugs.chromium.org/p/project-zero/issues/detail?id=2096

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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. However, proof of concept for this vulnerability is available.