#VU26862 Permissions, Privileges, and Access Controls in Visual Studio - CVE-2020-0900

Vulnerability identifier: #VU26862

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-2020-0900

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 Visual Studio Extension Installer Service improperly handles file operations. A local user can run a specially crafted application and gain elevated privileges on the target system.

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, 2015 Update 3

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External links
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0900

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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.