Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS1jeGpoLXBxd3AtOG1mcM4AA6AJ

follow-redirects' Proxy-Authorization header kept across hosts

When using axios, its dependency follow-redirects only clears authorization header during cross-domain redirect, but allows the proxy-authentication header which contains credentials too.

Steps To Reproduce & PoC

Test code:

const axios = require('axios');

axios.get('http://127.0.0.1:10081/', {
 headers: {
 'AuThorization': 'Rear Test',
 'ProXy-AuthoriZation': 'Rear Test',
 'coOkie': 't=1'
 }
})
 .then((response) => {
 console.log(response);
 })

When I meet the cross-domain redirect, the sensitive headers like authorization and cookie are cleared, but proxy-authentication header is kept.

Impact

This vulnerability may lead to credentials leak.

Recommendations

Remove proxy-authentication header during cross-domain redirect

Recommended Patch

follow-redirects/index.js:464

- removeMatchingHeaders(/^(?:authorization|cookie)$/i, this._options.headers);
+ removeMatchingHeaders(/^(?:authorization|proxy-authorization|cookie)$/i, this._options.headers);

Permalink: https://github.com/advisories/GHSA-cxjh-pqwp-8mfp
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1jeGpoLXBxd3AtOG1mcM4AA6AJ
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: about 2 months ago
Updated: 26 days ago

CVSS Score: 6.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Identifiers: GHSA-cxjh-pqwp-8mfp, CVE-2024-28849
References:

• https://github.com/follow-redirects/follow-redirects/security/advisories/GHSA-cxjh-pqwp-8mfp
• https://github.com/follow-redirects/follow-redirects/commit/c4f847f85176991f95ab9c88af63b1294de8649b
• https://fetch.spec.whatwg.org/#authentication-entries
• https://nvd.nist.gov/vuln/detail/CVE-2024-28849
• https://github.com/psf/requests/issues/1885
• https://hackerone.com/reports/2390009
• https://lists.fedoraproject.org/archives/list/[email protected]/message/VOIF4EPQUCKDBEVTGRQDZ3CGTYQHPO7Z
• https://github.com/advisories/GHSA-cxjh-pqwp-8mfp

Repository: https://github.com/follow-redirects/follow-redirects
Blast Radius: 41.0

Affected Packages