Vulnerability identifier: #VU26880

Vulnerability risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-0899

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Visual Studio
Universal components / Libraries / Software for developers

Vendor: Microsoft

Description

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

The vulnerability exists due to the Microsoft Visual Studio updater service improperly handles file permissions. A local user can control the files written by the updater and overwrite arbitrary files. 

Mitigation
Install update from vendor's website.

Vulnerable software versions

Visual Studio: 15.9, 16.0.0 16.0.28729.10, 16.4.0 16.4.29519.181

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0899

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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.