CVE-2024-21896
Published: February 16, 2024Last modified: February 16, 2024
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.8 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | Stream | nodejs | Fixed (20.11.1-r0) |
References
- http://www.openwall.com/lists/oss-security/2024/03/11/1
- https://hackerone.com/reports/2218653
- https://nodejs.org/en/blog/vulnerability/february-2024-security-releases#path-traversal-by-monkey-patching-buffer-internals-cve-2024-21896---high
- https://security.netapp.com/advisory/ntap-20240329-0002/