{
  "modified": "2025-08-09T19:01:27Z",
  "published": "2009-02-20T19:30:00Z",
  "id": "CVE-2009-0653",
  "details": "OpenSSL, probably 0.9.6, does not verify the Basic Constraints for an intermediate CA-signed certificate, which allows remote attackers to spoof the certificates of trusted sites via a man-in-the-middle attack, a related issue to CVE-2002-0970.",
  "references": [
    {
      "type": "EVIDENCE",
      "url": "https://www.blackhat.com/presentations/bh-dc-09/Marlinspike/BlackHat-DC-09-Marlinspike-Defeating-SSL.pdf"
    },
    {
      "type": "WEB",
      "url": "http://www.blackhat.com/html/bh-dc-09/bh-dc-09-speakers.html#Marlinspike"
    }
  ]
}