CVE-2022-23556

描述

CodeIgniter is a PHP full-stack web framework. This vulnerability may allow attackers to spoof their IP address when the server is behind a reverse proxy. This issue has been patched, please upgrade to version 4.2.11 or later, and configure `Config\App::$proxyIPs`. As a workaround, do not use `$request->getIPAddress()`.

如何修補 CVE-2022-23556

要修補 CVE-2022-23556,請將受影響套件升級到下列已修補版本。

• —升級至 4.2.11 或更新版本
• —升級至 4.2.11 或更新版本

CVE-2022-23556 正在被利用嗎?

低 — EPSS 為 0.4%,目前沒有觀察到大規模利用活動。

受影響套件(2)

• >= 4.0.0, < 4.2.11
• from 0, < 4.2.11

CVSS 分數

參考連結(6)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2022-23556
• PATCHgithub.com/codeigniter4/CodeIgniter4
• WEBcodeigniter4.github.io/userguide/incoming/request.html#CodeIgniter\HTTP\Request::getIPAddress
• WEBgithub.com/FriendsOfPHP/security-advisories/blob/master/codeigniter4/framework/CVE-2022-23556.yaml