SB2025012259 - MitM attack in Undici
Published: January 22, 2025
Security Bulletin ID
SB2025012259
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use of insufficiently random values (CVE-ID: CVE-2025-22150)
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.
Remediation
Install update from vendor's website.
References
- 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