Use of insufficiently random values in undici - CVE-2025-22150
Published: January 22, 2025
Vulnerability identifier: #VU103227
CSH Severity: Medium
CVSS v4.0: 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-2025-22150
CWE-ID: CWE-330
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Node.js
Affected software:
undici
undici
Detailed vulnerability description
The vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due to the application uses "Math.random()" from the fetch() function to choose the boundary for a "multipart/form-data" request. A remote attacker with ability to intercept traffic can tamper with the requests going to the backend APIs.
How to mitigate CVE-2025-22150
Install updates from vendor's website.
Sources
- https://blog.securityevaluators.com/hacking-the-javascript-lottery-80cc437e3b7f
- https://github.com/nodejs/undici/blob/8b06b8250907d92fead664b3368f1d2aa27c1f35/lib/web/fetch/body.js#L113
- https://github.com/nodejs/undici/commit/711e20772764c29f6622ddc937c63b6eefdf07d0
- https://github.com/nodejs/undici/commit/c2d78cd19fe4f4c621424491e26ce299e65e934a
- https://github.com/nodejs/undici/commit/c3acc6050b781b827d80c86cbbab34f14458d385
- https://github.com/nodejs/undici/security/advisories/GHSA-c76h-2ccp-4975
- https://hackerone.com/reports/2913312