摘要:
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.
安全等级: Low
公告ID: KylinSec-SA-2024-1450
发布日期: 2024年2月26日
关联CVE: 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 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.
| cve名称 | 产品 | 组件 | 是否受影响 |
|---|---|---|---|
| CVE-2024-21896 | KY3.4-4A | nodejs | Unaffected |
| CVE-2024-21896 | KY3.4-5 | nodejs | Unaffected |
| CVE-2024-21896 | KY3.5.1 | nodejs | Unaffected |
| CVE-2024-21896 | KY3.5.2 | nodejs | Unaffected |
