Remote code execution in Microsoft Visual Studio Code

1) Input validation error

EUVDB-ID: #VU71008

Risk: High

CVSSv4.0: 5.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-21779

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

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

CPE2.3

• cpe:2.3:a:microsoft:vscode:1.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:vscode:1.1.0:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:vscode:1.1.1:*:*:*:*:*:*:*

External links

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

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.