CVE-2022-35949

CVE-2022-35949 · `undici.request` vulnerable to SSRF using absolute URL on `pathname`

Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.

undici is an HTTP/1.1 client, written from scratch for Node.js.`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. This issue was fixed in `[email protected]`. The best workaround is to validate user input before passing it to the `undici.request` call.

CVSS 5.3 · Moyenne · EPSS 1,9% · Correctif disponible

Publication

2022-08-12T00:00:00.000Z

Mise à jour

2025-04-22T17:42:40.255Z

Pile logicielle: system · node

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