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CVE-2009-2505

Estado: ModificadaAlta (10)—

The Internet Authentication Service (IAS) en Microsoft Windows Vista SP2 y Server 2008 SP2 no valida adecuadamente las peticiones de autenticación MS-CHAP v2 Protected Extensible Authentication Protocol (PEAP), lo que permite a atacantes remotos ejecutar código de su elección a través de estructuras manipuladas en una petición malformada, conocido como "Internet Authentication Service Memory Corruption Vulnerability."

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (2)

Microsoft — Windows Server 2008Microsoft — Windows Vista

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2009-2505",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 10,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2009-12-09T18:30:00.233",
  "references": [
    {
      "url": "http://www.securitytracker.com/id?1023291",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA09-342A.html",
      "tags": [
        "US Government Resource"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-071",
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6063",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securitytracker.com/id?1023291",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA09-342A.html",
      "tags": [
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-071",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6063",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Internet Authentication Service (IAS) in Microsoft Windows Vista SP2 and Server 2008 SP2 does not properly validate MS-CHAP v2 Protected Extensible Authentication Protocol (PEAP) authentication requests, which allows remote attackers to execute arbitrary code via crafted structures in a malformed request, aka \"Internet Authentication Service Memory Corruption Vulnerability.\""
    },
    {
      "lang": "es",
      "value": "The Internet Authentication Service (IAS) en Microsoft Windows Vista SP2 y Server 2008 SP2 no valida adecuadamente las peticiones de autenticación MS-CHAP v2 Protected Extensible Authentication Protocol (PEAP), lo que permite a atacantes remotos ejecutar código de su elección a través de estructuras manipuladas en una petición malformada, conocido como \"Internet Authentication Service Memory Corruption Vulnerability.\""
    }
  ],
  "lastModified": "2026-06-16T23:09:36.060",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2008:*:sp2:itanium:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7C684420-1614-4DAE-9BD9-F1FE9102A50F"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2008:sp2:x32:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9517571A-BC1A-4838-A094-30081A86D36C"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2008:sp2:x64:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CD7CA7F0-9C4D-4172-91BD-90A8C86EE337"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0A0D2704-C058-420B-B368-372D1129E914"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secure@microsoft.com"
}