CVE-2022-31090 CURLOPT_HTTPAUTH option not cleared on change of origin in Guzzle
Attackers can steal sensitive Authorization headers when Guzzle follows cross-origin redirects using the Curl handler, exposing credentials to unintended destinations.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-31090?
CVE-2022-31090 is a high-severity vulnerability in Debian Debian Linux, published on 27 Jun 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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 did 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.
Which versions are affected by CVE-2022-31090?
4 open source packages ship an affected version, including guzzlehttp/guzzle. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
guzzlehttp/guzzle Packagist | All versions | 6.5.8 |
guzzlehttp/guzzle Packagist | All versions | 6.5.8 |
guzzlehttp/guzzle Packagist | From 7.0.0 | 7.4.5 |
guzzlehttp/guzzle Packagist | From 7.0.0 | 7.4.5 |
Products include Debian Debian Linux, Guzzlephp Guzzle.
How do I fix CVE-2022-31090?
Upgrade guzzlehttp/guzzle to a fixed version for your release line: 6.5.8 or 7.4.5.
Is CVE-2022-31090 being exploited?
There is no known exploitation of CVE-2022-31090 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2022-31090, GHSA-25mq-v84q-4j7r, UBUNTU-CVE-2022-31090.