{
  "id": "CVE-2011-0040",
  "sourceIdentifier": "secure@microsoft.com",
  "published": "2011-02-09T01:00:08.150",
  "lastModified": "2018-10-12T21:59:16.133",
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "The server in Microsoft Active Directory on Windows Server 2003 SP2 does not properly handle an update request for a service principal name (SPN), which allows remote attackers to cause a denial of service (authentication downgrade or outage) via a crafted request that triggers name collisions, aka \"Active Directory SPN Validation Vulnerability.\""
    },
    {
      "lang": "es",
      "value": "El servidor de Microsoft Active Directory en Windows Server 2003 Service Pack 2 no controla correctamente una solicitud de actualizaci\u00f3n de un nombre principal de servicio (SPN), lo que permite a atacantes remotos provocar una denegaci\u00f3n de servicio (degradaci\u00f3n de autenticaci\u00f3n o corte) a trav\u00e9s de una petici\u00f3n manipulada que dispara colisiones de nombre, tambi\u00e9n conocido como \"Vulnerabilidad de Validaci\u00f3n SPN de Directorio Activo.\""
    }
  ],
  "metrics": {
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
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              "matchCriteriaId": "2978BF86-5A1A-438E-B81F-F360D0E30C9C"
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  ],
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/46145",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securitytracker.com/id?1025042",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2011/0319",
      "source": "secure@microsoft.com",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-005",
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/64915",
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12485",
      "source": "secure@microsoft.com"
    }
  ]
}