{
  "modified": "2025-08-09T19:01:27Z",
  "published": "2009-09-22T10:30:00Z",
  "id": "CVE-2009-3287",
  "details": "lib/thin/connection.rb in Thin web server before 1.2.4 relies on the X-Forwarded-For header to determine the IP address of the client, which allows remote attackers to spoof the IP address and hide activities via a modified X-Forwarded-For header.",
  "references": [
    {
      "type": "FIX",
      "url": "http://github.com/macournoyer/thin/commit/7bd027914c5ffd36bb408ef47dc749de3b6e063a"
    },
    {
      "type": "WEB",
      "url": "http://github.com/macournoyer/thin/blob/master/CHANGELOG"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2009/09/12/1"
    }
  ]
}