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CVE-2013-6422

Estado: ModificadaMedia (4)—

The GnuTLS backend in libcurl 7.21.4 through 7.33.0, when disabling digital signature verification (CURLOPT_SSL_VERIFYPEER), also disables the CURLOPT_SSL_VERIFYHOST check for CN or SAN host name fields, which makes it easier for remote attackers to spoof servers and conduct man-in-the-middle (MITM) attacks.

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 (3)

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2013-6422",
  "cveTags": [],
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          "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "HIGH",
          "availabilityImpact": "NONE",
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        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
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              "version": "n/a"
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  "published": "2013-12-23T22:55:02.943",
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      "value": "The GnuTLS backend in libcurl 7.21.4 through 7.33.0, when disabling digital signature verification (CURLOPT_SSL_VERIFYPEER), also disables the CURLOPT_SSL_VERIFYHOST check for CN or SAN host name fields, which makes it easier for remote attackers to spoof servers and conduct man-in-the-middle (MITM) attacks."
    },
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      "value": "El backend de GnuTLS en libcurl 7.21.4 a 7.33.0, cuando se desactiva la verificación de firmas digitales (CURLOPT_SSL_VERIFYPEER), también desactiva la comprobación CURLOPT_SSL_VERIFYHOST para nombres de host CN o SAN, lo cual facilita a atacantes remotos la suplantación de servidores y la ejecución de ataques man-in-the-middle (MITM)."
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  "lastModified": "2026-06-17T00:00:27.647",
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