CVE-2024-21896
The permission model protects itself against path traversal attacks by calling path.resolve() on any paths given by the user.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.26%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.26% probability · 68th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-27
- Affected
- nodejs/node.js
- Source
- support@hackerone.com
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.