Remote code execution in Visual Studio Code Maven extension

1) Input validation error

EUVDB-ID: #VU45618

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-0604

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 it process environment variables after opening a project. A remote attacker can trick a victim to clone a repository, open it in Visual Studio Code and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Visual Studio Code Maven extension: 0.0.4 - 0.23.0

CPE2.3

• cpe:2.3:a:microsoft:vscode-maven:0.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:vscode-maven:0.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:vscode-maven:0.0.6:*:*:*:*:*:*:*

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0604

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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