Advisory Weakness Curation

CURLOPT_HTTPAUTH option not cleared on change of origin ### Impact `Authorization` headers on requests are sensitive information. When using our Curl handler, it is possible to use the `CURLOPT_HTTPAUTH` option to specify an `Authorization` header. On making a request which responds with a redirect to a URI with a different origin, if we choose to follow it, we should remove the `CURLOPT_HTTPAUTH` and `CURLOPT_USERPWD` options before continuing, stopping curl from appending the `Authorization` header to the new request. Previously, we would only consider a change in host. Now, we consider any change in host, port or scheme to be a change in origin. ### Patches Affected Guzzle 7 users should upgrade to Guzzle 7.4.5 as soon as possible. Affected users using any earlier series of Guzzle should upgrade to Guzzle 6.5.8 or 7.4.5. Note that a partial fix was implemented in Guzzle 7.4.2, where a change in host would trigger removal of the curl-added Authorization header, however this earlier fix did not cover change in scheme or change in port. ### Workarounds If you do not require or expect redirects to be followed, one should simply disable redirects all together. Alternatively, one can specify to use the Guzzle stream handler backend, rather than curl. ### References * RFC9110 Section 15.4 https://www.rfc-editor.org/rfc/rfc9110.html#name-redirection-3xx * CVE-2022-27776 https://curl.se/docs/CVE-2022-27776.html ### For more information If you have any questions or comments about this advisory, please get in touch with us in `#guzzle` on the PHP HTTP Slack https://php-http.slack.com/. Do not report additional security advisories in that public channel, however - please follow our vulnerability reporting process https://github.com/guzzle/guzzle/security/policy.

Exposure of Sensitive Information to an Unauthorized Actor Guzzle, an extensible PHP HTTP client. `Authorization` headers on requests are sensitive information. In affected versions when using our Curl handler, it is possible to use the `CURLOPT_HTTPAUTH` option to specify an `Authorization` header. On making a request which responds with a redirect to a URI with a different origin (change in host, scheme or port), if we choose to follow it, we should remove the `CURLOPT_HTTPAUTH` option before continuing, stopping curl from appending the `Authorization` header to the new request. Affected Guzzle 7 users should upgrade to Guzzle 7.4.5 as soon as possible. Affected users using any earlier series of Guzzle should upgrade to Guzzle 6.5.8 or 7.4.5. Note that a partial fix was implemented in Guzzle 7.4.2, where a change in host would trigger removal of the curl-added Authorization header, however this earlier fix does not cover change in scheme or change in port. If you do not require or expect redirects to be followed, one should simply disable redirects all together. Alternatively, one can specify to use the Guzzle steam handler backend, rather than curl.

Duplicate This advisory duplicates another.