Vulnerability Description
The permission model protects itself against path traversal attacks by calling path.resolve() on any paths given by the user. If the path is to be treated as a Buffer, the implementation uses Buffer.from() to obtain a Buffer from the result of path.resolve(). By monkey-patching Buffer internals, namely, Buffer.prototype.utf8Write, the application can modify the result of path.resolve(), which leads to a path traversal vulnerability. This vulnerability affects all users using the experimental permission model in Node.js 20 and Node.js 21. Please note that at the time this CVE was issued, the permission model is an experimental feature of Node.js.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nodejs | Node.Js | >= 20.0.0, < 20.11.1 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2024/03/11/1Mailing ListThird Party Advisory
- https://hackerone.com/reports/2218653Issue Tracking
- https://security.netapp.com/advisory/ntap-20240329-0002/Third Party Advisory
- http://www.openwall.com/lists/oss-security/2024/03/11/1Mailing ListThird Party Advisory
- https://hackerone.com/reports/2218653Issue Tracking
- https://security.netapp.com/advisory/ntap-20240329-0002/Third Party Advisory
FAQ
What is CVE-2024-21896?
CVE-2024-21896 is a vulnerability with a CVSS score of 9.8 (CRITICAL). The permission model protects itself against path traversal attacks by calling path.resolve() on any paths given by the user. If the path is to be treated as a Buffer, the implementation uses Buffer.f...
How severe is CVE-2024-21896?
CVE-2024-21896 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2024-21896?
Check the references section above for vendor advisories and patch information. Affected products include: Nodejs Node.Js.