Vulnerability identifier: #VU54809

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-2021-34477

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
.NET Install Tool for Extension Authors
Other software / Other software solutions
.NET Education Bundle SDK Install Tool
Other software / Other software solutions

Vendor: Microsoft

Description

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

The vulnerability exists due to application does not properly impose security restrictions in the Visual Studio Code .NET Runtime, which leads to security restrictions bypass and privilege escalation.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

.NET Install Tool for Extension Authors: All versions

.NET Education Bundle SDK Install Tool: All versions

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34477

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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.