CVE-2022-35949

MEDIUM5.3EPSS 0.39%

`undici.request` vulnerable to SSRF using absolute URL on `pathname`

發布日:2022/8/18修改日:2023/11/8

描述

### Impact `undici` is vulnerable to SSRF (Server-side Request Forgery) when an application takes in **user input** into the `path/pathname` option of `undici.request`. If a user specifies a URL such as `http://127.0.0.1` or `//127.0.0.1` ```js const undici = require("undici") undici.request({origin: "http://example.com", pathname: "//127.0.0.1"}) ``` Instead of processing the request as `http://example.org//127.0.0.1` (or `http://example.org/http://127.0.0.1` when `http://127.0.0.1 is used`), it actually processes the request as `http://127.0.0.1/` and sends it to `http://127.0.0.1`. If a developer passes in user input into `path` parameter of `undici.request`, it can result in an _SSRF_ as they will assume that the hostname cannot change, when in actual fact it can change because the specified path parameter is combined with the base URL. ### Patches This issue was fixed in `[email protected]`. ### Workarounds The best workaround is to validate user input before passing it to the `undici.request` call. ## For more information If you have any questions or comments about this advisory: - Open an issue in [undici repository](https://github.com/nodejs/undici/issues) - To make a report, follow the [SECURITY](https://github.com/nodejs/node/blob/HEAD/SECURITY.md) document

受影響套件(2)

Debian/node-undicifrom 0, < 5.8.2+dfsg1+~cs18.9.18.1-1
npm/undicifrom 0, < 5.8.2

CVSS 分數

來源	版本	嚴重程度	向量
osv	CVSS 3.1	MEDIUM5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

描述

受影響套件(2)

CVSS 分數

參考連結(6)