Kurz gesagt
- CVE-2022-35948 ist eine Schwachstelle (MITTEL (CVSS 5.3)) in undici (nodejs), undici.
- Wahrscheinlichkeit einer Ausnutzung in den nächsten 30 Tagen (EPSS): 1.4%, höher als bei 72.3% aller Schwachstellen.
- Abhilfe: auf 5.8.2 oder neuer aktualisieren.
| Package | Affected versions | Patched versions |
|---|
| undici | < 5.8.2
| 5.8.2
|
| undici npm | < 5.8.2
| 5.8.2
|
Description
Impact
=< [email protected] users are vulnerable to CRLF Injection on headers when using unsanitized input as request headers, more specifically, inside the content-type header.
Example:
import { request } from 'undici'
const unsanitizedContentTypeInput = 'application/json\r\n\r\nGET /foo2 HTTP/1.1'
await request('http://localhost:3000, {
method: 'GET',
headers: {
'content-type': unsanitizedContentTypeInput
},
})
The above snippet will perform two requests in a single request API call:
http://localhost:3000/http://localhost:3000/foo2
Patches
This issue was patched in Undici v5.8.1
Workarounds
Sanitize input when sending content-type headers using user input.
For more information
If you have any questions or comments about this advisory:
NVD description
undici is an HTTP/1.1 client, written from scratch for Node.js.`=< [email protected]` users are vulnerable to _CRLF Injection_ on headers when using unsanitized input as request headers, more specifically, inside the `content-type` header. Example: ``` import { request } from 'undici' const unsanitizedContentTypeInput = 'application/json\r\n\r\nGET /foo2 HTTP/1.1' await request('http://localhost:3000, { method: 'GET', headers: { 'content-type': unsanitizedContentTypeInput }, }) ``` The above snippet will perform two requests in a single `request` API call: 1) `http://localhost:3000/` 2) `http://localhost:3000/foo2` This issue was patched in Undici v5.8.1. Sanitize input when sending content-type headers using user input as a workaround.
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free