FKIE_CVE-2009-0653

Vulnerability from fkie_nvd - Published: 2009-02-20 19:30 - Updated: 2025-04-09 00:30
Severity ?
Summary
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
cve@mitre.orghttp://www.blackhat.com/html/bh-dc-09/bh-dc-09-speakers.html#Marlinspike
cve@mitre.orghttps://www.blackhat.com/presentations/bh-dc-09/Marlinspike/BlackHat-DC-09-Marlinspike-Defeating-SSL.pdfExploit
af854a3a-2127-422b-91ae-364da2661108http://www.blackhat.com/html/bh-dc-09/bh-dc-09-speakers.html#Marlinspike
af854a3a-2127-422b-91ae-364da2661108https://www.blackhat.com/presentations/bh-dc-09/Marlinspike/BlackHat-DC-09-Marlinspike-Defeating-SSL.pdfExploit
Impacted products
Vendor Product Version
openssl openssl 0.9.6
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:openssl:openssl:0.9.6:*:*:*:*:*:*:*",
              "matchCriteriaId": "B5E4742C-A983-4F00-B24F-AB280C0E876D",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "OpenSSL, probablemente v0.9.6, no verifica las limitacion basicas para un certificado de autoridad certificadora intermedia, lo que permite a atacantes remotos falsificar lo certificados de sitios de confianza, a traves de un ataque de hombre en el medio, relacionada con CVE-2002-0970."
    }
  ],
  "id": "CVE-2009-0653",
  "lastModified": "2025-04-09T00:30:58.490",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2009-02-20T19:30:00.280",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://www.blackhat.com/html/bh-dc-09/bh-dc-09-speakers.html#Marlinspike"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit"
      ],
      "url": "https://www.blackhat.com/presentations/bh-dc-09/Marlinspike/BlackHat-DC-09-Marlinspike-Defeating-SSL.pdf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.blackhat.com/html/bh-dc-09/bh-dc-09-speakers.html#Marlinspike"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit"
      ],
      "url": "https://www.blackhat.com/presentations/bh-dc-09/Marlinspike/BlackHat-DC-09-Marlinspike-Defeating-SSL.pdf"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vendorComments": [
    {
      "comment": "Not vulnerable. This issue was addressed in upstream OpenSSL prior to 0.9.6 and therefore does not affect the versions of OpenSSL as shipped with Red Hat Enterprise Linux 2.1, 3, 4, or 5.",
      "lastModified": "2009-03-02T00:00:00",
      "organization": "Red Hat"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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