CVE-2024-21896
Last modified
CVE-2024-21896 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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(). EPSS estimates a 1.26% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Nodejs | Node.Js | >= 20.0.0, < 20.11.1 |
| Nodejs | Node.Js | >= 21.0.0, < 21.6.2 |
References
- http://www.openwall.com/lists/oss-security/2024/03/11/1Mailing List, Third 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 List, Third Party Advisory
- https://hackerone.com/reports/2218653Issue Tracking
- https://security.netapp.com/advisory/ntap-20240329-0002/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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