CVE-2024-21896: The permission model protects itself against path traversal attacks by call

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

NodeJS Node

Default version status: unaffected

4.0 to < 4.*affected
5.0 to < 5.*affected
6.0 to < 6.*affected
7.0 to < 7.*affected
8.0 to < 8.*affected
9.0 to < 9.*affected
10.0 to < 10.*affected
11.0 to < 11.*affected
12.0 to < 12.*affected
13.0 to < 13.*affected
14.0 to < 14.*affected
15.0 to < 15.*affected
16.0 to < 16.*affected
17.0 to < 17.*affected
19.0 to < 19.*affected
20.0 to < 20.11.1affected
21.0 to < 21.6.2affected

CVE-2024-21896

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 implemen

Description

Affected products

NodeJS Node

References