Vulnerability identifier: #VU71008

Vulnerability risk: High

CVSSv3.1: 7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-21779

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

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

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to insufficient validation of user-supplied input in Visual Studio Code when handling iframes. A remote user can trick a victim to open a specially crafted file and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Visual Studio Code: 1.0.0 - 1.74.2

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21779
http://github.com/microsoft/vscode/security/advisories/GHSA-p996-wrgh-crrj

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.