CVE-2022-35943

描述

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)

如何修補 CVE-2022-35943

要修補 CVE-2022-35943,請將受影響套件升級到下列已修補版本。

• —升級至 4.2.3 或更新版本
• —升級至 1.0.0-beta.2 或更新版本

CVE-2022-35943 正在被利用嗎?

低 — EPSS 為 0.5%,目前沒有觀察到大規模利用活動。

受影響套件(2)

• from 0, < 4.2.3
• >= 1.0.0-beta, < 1.0.0-beta.2

CVSS 分數

參考連結(7)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2022-35943
• PATCHgithub.com/codeigniter4/shield
• WEBcodeigniter4.github.io/userguide/libraries/security.htm
• WEBdeveloper.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie/SameSite