Information disclosure in Drupal
CVE-2022-31043
Guzzle is an open source PHP HTTP client. In affected versions `Authorization` headers on requests are sensitive information. On making a request using the `https` scheme to a server which responds with a redirect to a URI with the `http` scheme, we should not forward the `Authorization` header on. This is much the same as to how we don't forward on the header if the host changes. Prior to this fix, `https` to `http` downgrades did not result in the `Authorization` header being removed, only changes to the host. Affected Guzzle 7 users should upgrade to Guzzle 7.4.4 as soon as possible. Affected users using any earlier series of Guzzle should upgrade to Guzzle 6.5.7 or 7.4.4. Users unable to upgrade may consider an alternative approach which would be to use their own redirect middleware. Alternately users may simply disable redirects all together if redirects are not expected or required.
Vulnerability class: Information Disclosure
EPSS: 0.019 (78.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Drupal — versions 9.4.0
- Guzzle — versions < 6.5.7, >=7.0.0, < 7.4.4
- Guzzlephp Guzzle
- Debian Debian_linux — versions 11.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (Patch, Third Party Advisory)
- security-advisories@github.com (Third Party Advisory)
- security-advisories@github.com (Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory)
- security-advisories@github.com (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-31043?
- CVE-2022-31043 is a high-severity vulnerability in Drupal, classified under Information Disclosure. CVSS score: 7.5/10. Published 2022-06-10.
- How severe is CVE-2022-31043?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2022-31043 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.