CVE-2022-35943
MEDIUM5.9EPSS 0.15%CodeIgniter Shield Vulnerable to SameSite Attackers Bypassing the CSRF Protection
Description
Shield is an authentication and authorization framework for CodeIgniter 4. This vulnerability may allow [SameSite Attackers](https://canitakeyoursubdomain.name/) to bypass the [CodeIgniter4 CSRF protection](https://codeigniter4.github.io/userguide/libraries/security.html) 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/`). Upgrade to **CodeIgniter v4.2.3 or later** and **Shield v1.0.0-beta.2 or later**. As a workaround: set `Config\Security::$csrfProtection` to `'session,'`remove old session data right after login (immediately after ID and password match) and regenerate CSRF token right after login (immediately after ID and password match)
Affected packages (2)
- Bitnami/codeigniterfrom 0, < 4.2.3
- Packagist/codeigniter4/shield>= 1.0.0-beta, < 1.0.0-beta.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:L |
References (7)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2022-35943
- PATCHhttps://github.com/codeigniter4/shield
- WEBhttps://codeigniter4.github.io/userguide/libraries/security.htm
- WEBhttps://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie/SameSite
- WEBhttps://github.com/codeigniter4/shield/commit/342a368536678621998c3c41d276480cd14ec6c6
- WEBhttps://github.com/codeigniter4/shield/security/advisories/GHSA-5hm8-vh6r-2cjq
- WEBhttps://jub0bs.com/posts/2021-01-29-great-samesite-confusion