#VU59548 Improper Certificate Validation in Node.js - CVE-2021-44531


Vulnerability identifier: #VU59548

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-44531

CWE-ID: CWE-295

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Node.js
Server applications / Web servers

Vendor: Node.js Foundation

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to insufficient validation of URI Subject Alternative Names. Node.js accepts arbitrary Subject Alternative Name (SAN) types, unless a PKI is specifically defined to use a particular SAN type. A remote attacker can bypass name-constrained intermediates and perform spoofing attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Node.js: 12.0.0, 12.1.0 - 12.19.1, 12.2.0 - 12.22.8, 12.3.0 - 12.3.1, 12.4.0, 12.5.0, 12.6.0, 12.7.0, 12.8.0 - 12.8.1, 12.9.0 - 12.9.1, 13.0.0 - 13.0.1, 13.1.0 - 13.14.0, 13.2.0, 13.3.0, 13.4.0, 13.5.0, 13.6.0, 13.7.0, 13.8.0, 13.9.0, 14.0.0, 14.1.0 - 14.18.2, 14.2.0, 14.3.0, 14.4.0, 14.5.0, 14.6.0, 14.7.0, 14.8.0, 14.9.0, 15.0.0 - 15.0.1, 15.1.0 - 15.14.0, 15.2.0 - 15.2.1, 15.3.0, 15.4.0, 15.5.0 - 15.5.1, 15.6.0, 15.7.0, 15.8.0, 15.9.0, 16.0.0, 16.1.0 - 16.13.1, 16.2.0, 16.3.0, 16.4.0 - 16.4.2, 16.5.0, 16.6.0 - 16.6.2, 16.7.0, 16.8.0, 16.9.0 - 16.9.1, 17.0.0 - 17.0.1, 17.1.0, 17.2.0, 17.3.0


External links
https://nodejs.org/en/blog/vulnerability/jan-2022-security-releases/


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.


Latest bulletins with this vulnerability