GHSA-5hm8-vh6r-2cjq
Suggest an improvement- Source
- https://github.com/advisories/GHSA-5hm8-vh6r-2cjq
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/08/GHSA-5hm8-vh6r-2cjq/GHSA-5hm8-vh6r-2cjq.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-5hm8-vh6r-2cjq
- Aliases
- Published
- 2022-08-18T19:03:34Z
- Modified
- 2023-12-06T01:02:25.825251Z
- Severity
-
- 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:L CVSS Calculator
- Summary
- CodeIgniter Shield Vulnerable to SameSite Attackers Bypassing the CSRF Protection
- Details
-
Impact
This vulnerability may allow SameSite Attackers to bypass the CodeIgniter4 CSRF protection mechanism with CodeIgniter Shield.
For this attack to succeed, the attacker must have direct (or indirect, e.g., XSS) control over a subdomain site (e.g.,
https://a.example.com/) of the target site (e.g.,http://example.com/).This vulnerability exists whether
Config\Security::$csrfProtectionis'cookie'or'session'. It is also exploitable whetherConfig\Security::$regenerateistrueorfalse.Patches
Upgrade to CodeIgniter v4.2.3 or later and Shield v1.0.0-beta.2 or later.
Workarounds
Do all of the following: - set
Config\Security::$csrfProtectionto'session'- remove old session data right after login (immediately after ID and password match) - regenerate CSRF token right after login (immediately after ID and password match)References
For more information
If you have any questions or comments about this advisory: * Open an issue or discussion in codeigniter4/shield * Email us at security@codeigniter.com
- Database specific
{ "nvd_published_at": "2022-08-12T21:15:00Z", "github_reviewed_at": "2022-08-18T19:03:34Z", "severity": "MODERATE", "github_reviewed": true, "cwe_ids": [ "CWE-352" ] }- References
-
- https://github.com/codeigniter4/shield/security/advisories/GHSA-5hm8-vh6r-2cjq
- https://nvd.nist.gov/vuln/detail/CVE-2022-35943
- https://github.com/codeigniter4/shield/commit/342a368536678621998c3c41d276480cd14ec6c6
- https://codeigniter4.github.io/userguide/libraries/security.htm
- https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie/SameSite
- https://github.com/codeigniter4/shield
- https://jub0bs.com/posts/2021-01-29-great-samesite-confusion
Affected packages
Packagist / codeigniter4/shield
Package
- Name
- codeigniter4/shield
- Purl
- pkg:composer/codeigniter4/shield