Vulnerability identifier: #VU86718

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-2024-21892

CWE-ID: CWE-755

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Node.js
Server applications / Web servers

Vendor: Node.js Foundation

Description

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

The vulnerability exists due to the way certain environment variables are handled by Node.js on Linux. A local user can use a specially crafted environment variable to escalate privileges on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Node.js: 21.6.0 - 21.6.1, 21.5.0, 21.4.0, 20.11.0, 18.19.0, 18.1.0 - 18.18.2, 18.4.0, 18.3.0, 18.2.0, 18.0.0

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External links
http://hackerone.com/reports/2237545
http://nodejs.org/en/blog/vulnerability/february-2024-security-releases

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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.