#VU72404 Incorrect Regular Expression in undici
Vulnerability identifier: #VU72404
Vulnerability risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-185
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
undici
Server applications /
File servers (FTP/HTTP)
Vendor: Node.js
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient input validation when user-supplied input within the `Headers.set()` and `Headers.append()` methods. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.
Mitigation
Install update from vendor's website.
Vulnerable software versions
undici: 1.0.0 - 5.19.0
External links
http://github.com/nodejs/undici/releases/tag/v5.19.1
http://github.com/nodejs/undici/security/advisories/GHSA-r6ch-mqf9-qc9w
http://hackerone.com/bugs?report_id=1784449
http://github.com/nodejs/undici/commit/f2324e549943f0b0937b09fb1c0c16cc7c93abdf
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.
