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CVE-2007-0042

Estado: ModificadaAlta (7.8)—💥 Exploit

Interpretation conflict in ASP.NET in Microsoft .NET Framework 1.0, 1.1, and 2.0 for Windows 2000, XP, Server 2003, and Vista allows remote attackers to access configuration files and obtain sensitive information, and possibly bypass security mechanisms that try to constrain the final substring of a string, via %00 characters, related to use of %00 as a string terminator within POSIX functions but a data character within .NET strings, aka "Null Byte Termination 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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

Tecnologías afectadas (1)

Microsoft — .net Framework

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2007-0042",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "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": "2007-07-10T22:30:00.000",
  "references": [
    {
      "url": "http://archive.cert.uni-stuttgart.de/bugtraq/2007/07/msg00254.html",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://secunia.com/advisories/26003",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://security-assessment.com/files/advisories/2007-07-11_Multiple_.NET_Null_Byte_Injection_Vulnerabilities.pdf",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securitytracker.com/id?1018356",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA07-191A.html",
      "tags": [
        "US Government Resource"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2007/2482",
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-040",
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2070",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://archive.cert.uni-stuttgart.de/bugtraq/2007/07/msg00254.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/26003",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://security-assessment.com/files/advisories/2007-07-11_Multiple_.NET_Null_Byte_Injection_Vulnerabilities.pdf",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id?1018356",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA07-191A.html",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "url": "http://www.vupen.com/english/advisories/2007/2482",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-040",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2070",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Interpretation conflict in ASP.NET in Microsoft .NET Framework 1.0, 1.1, and 2.0 for Windows 2000, XP, Server 2003, and Vista allows remote attackers to access configuration files and obtain sensitive information, and possibly bypass security mechanisms that try to constrain the final substring of a string, via %00 characters, related to use of %00 as a string terminator within POSIX functions but a data character within .NET strings, aka \"Null Byte Termination Vulnerability.\""
    },
    {
      "lang": "es",
      "value": "Un conflicto de interpretación en ASP.NET en Microsoft .NET Framework versión 1.0, 1.1 y 2.0 para Windows 2000, XP, Server 2003 y Vista permite que los atacantes remotos accedan a los archivos de configuración y obtengan información confidencial, y posiblemente omitan los mecanismos de seguridad que intentan restringir el acceso. La subcadena final de una cadena, por medio de caracteres %00 , relacionada con el uso de %00 como terminador de cadena dentro de las funciones POSIX pero un carácter data dentro de las cadenas .NET, también se conoce como \"Null Byte Termination Vulnerability.\"."
    }
  ],
  "lastModified": "2026-06-16T22:34:45.853",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "matchCriteriaId": "685F1981-EA61-4A00-89F8-A748A88962F8"
            },
            {
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              "vulnerable": false,
              "matchCriteriaId": "EAA86830-BEA8-4943-83EA-C267FA534223"
            },
            {
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              "matchCriteriaId": "7CAEEA81-5037-4B68-98D9-83AAEBC98E20"
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  "sourceIdentifier": "secure@microsoft.com"
}