CVE-2022-35943

 

Published at: - 12-08-2022 11:15

Last modified: - 16-08-2022 06:06

Total changes: - 2

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)

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

 

Verification logic

 

Reference

• https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie/SameSite
• https://jub0bs.com/posts/2021-01-29-great-samesite-confusion
• https://codeigniter4.github.io/userguide/libraries/security.htm
• https://github.com/codeigniter4/shield/security/advisories/GHSA-5hm8-vh6r-2cjq

 

Keywords

NVD

 

CVE-2022-35943

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures