Vulnerability identifier: #VU25967

Vulnerability risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-0834

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 user to escalate privileges on the system.

The vulnerability exists due to the Windows improperly handles calls to Advanced Local Procedure Call (ALPC). A local user can use a specially crafted application and run arbitrary code with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows: 10 1803 10.0.17134.48, 10 1809 10.0.17763.1, 10 1709 10.0.16299.19, 10 1903 10.0.18362.116, 10 1607 10.0.14393.10, 8.1 - 8.1 RT, 10 1909 10.0.18363.476

Windows Server: 2012 R2 - 2019 1909

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0834

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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.