{
  "schema_version": "1.4.0",
  "id": "GHSA-ghw3-5qvm-3mqc",
  "modified": "2022-12-22T19:59:58Z",
  "published": "2022-12-22T19:59:58Z",
  "aliases": [
    "CVE-2022-23556"
  ],
  "summary": "CodeIgniter4 allows spoofing of IP address when using proxy",
  "details": "### Impact\nThis vulnerability may allow attackers to spoof their IP address when your server is behind a reverse proxy.\n\n### Patches\nUpgrade to v4.2.11 or later, and configure `Config\\App::$proxyIPs`.\n\n### Workarounds\nDo not use `$request->getIPAddress()`.\n\n### References\n- https://codeigniter4.github.io/userguide/incoming/request.html#CodeIgniter\\HTTP\\Request::getIPAddress\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [codeigniter4/CodeIgniter4](https://github.com/codeigniter4/CodeIgniter4/issues)\n* Email us at [SECURITY.md](https://github.com/codeigniter4/CodeIgniter4/blob/develop/SECURITY.md)\n",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "codeigniter4/framework"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.2.11"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-ghw3-5qvm-3mqc"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-23556"
    },
    {
      "type": "WEB",
      "url": "https://github.com/codeigniter4/CodeIgniter4/commit/5ca8c99b2db09a2a08a013836628028ddc984659"
    },
    {
      "type": "WEB",
      "url": "https://codeigniter4.github.io/userguide/incoming/request.html#CodeIgniter\\HTTP\\Request::getIPAddress"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/codeigniter4/framework/CVE-2022-23556.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/codeigniter4/CodeIgniter4"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-345"
    ],
    "severity": "HIGH",
    "github_reviewed": true,
    "github_reviewed_at": "2022-12-22T19:59:58Z",
    "nvd_published_at": "2022-12-22T19:15:00Z"
  }
}