FKIE_CVE-2007-6043

Vulnerability from fkie_nvd - Published: 2007-11-20 19:46 - Updated: 2026-06-16 22:47
Severity
Summary
The CryptGenRandom function in Microsoft Windows 2000 generates predictable values, which makes it easier for context-dependent attackers to reduce the effectiveness of cryptographic mechanisms, as demonstrated by attacks on (1) forward security and (2) backward security, related to use of eight instances of the RC4 cipher, and possibly a related issue to CVE-2007-3898.
References
cve@mitre.orghttp://eprint.iacr.org/2007/419.pdf
cve@mitre.orghttp://www.computerworld.com.au/index.php/id%3B1165210682%3Bfp%3B2%3Bfpid%3B1
cve@mitre.orghttp://www.securityfocus.com/bid/26495
af854a3a-2127-422b-91ae-364da2661108http://eprint.iacr.org/2007/419.pdf
af854a3a-2127-422b-91ae-364da2661108http://www.computerworld.com.au/index.php/id%3B1165210682%3Bfp%3B2%3Bfpid%3B1
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/26495
Impacted products
Vendor Product Version
microsoft windows_2000 *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4E545C63-FE9C-4CA1-AF0F-D999D84D2AFD",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The CryptGenRandom function in Microsoft Windows 2000 generates predictable values, which makes it easier for context-dependent attackers to reduce the effectiveness of cryptographic mechanisms, as demonstrated by attacks on (1) forward security and (2) backward security, related to use of eight instances of the RC4 cipher, and possibly a related issue to CVE-2007-3898."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n CryptGenRandom en Microsoft Windows 2000 genera valores predecibles, lo cual hace m\u00e1s f\u00e1cil para un atacantes dependiente del contexto reducir la efectividad de mecanismos criptogr\u00e1ficos, como se demostr\u00f3 por un ataque sobre (1) forward security y (2) backward security, relacionado con el uso de ocho instancias de RC4 cipher, y posiblemente relacionado con el asunto CVE-2007-3898."
    }
  ],
  "id": "CVE-2007-6043",
  "lastModified": "2026-06-16T22:47:18.927",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 7.1,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:C/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 6.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2007-11-20T19:46:00.000",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://eprint.iacr.org/2007/419.pdf"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.computerworld.com.au/index.php/id%3B1165210682%3Bfp%3B2%3Bfpid%3B1"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securityfocus.com/bid/26495"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://eprint.iacr.org/2007/419.pdf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.computerworld.com.au/index.php/id%3B1165210682%3Bfp%3B2%3Bfpid%3B1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/bid/26495"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.