GHSA-8qr4-xgw6-wmr3

Source

https://github.com/advisories/GHSA-8qr4-xgw6-wmr3

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/08/GHSA-8qr4-xgw6-wmr3/GHSA-8qr4-xgw6-wmr3.json

JSON Data

https://api.test.osv.dev/v1/vulns/GHSA-8qr4-xgw6-wmr3

Aliases

CVE-2022-35949

Published

2022-08-18T18:59:46Z

Modified

2023-11-01T04:59:24.742971Z

Severity

5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator

Summary

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

Details

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

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 undici@5.8.1.

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
To make a report, follow the SECURITY document

Database specific

{
    "severity": "MODERATE",
    "github_reviewed_at": "2022-08-18T18:59:46Z",
    "cwe_ids": [
        "CWE-918"
    ],
    "github_reviewed": true,
    "nvd_published_at": "2022-08-12T23:15:00Z"
}

References

Affected packages

npm / undici

Package

Name: undici; View open source insights on deps.dev
Purl: pkg:npm/undici

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.8.2

Database specific

last_known_affected_version_range

"<= 5.8.1"