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CVE-2017-11104

Estado: ModificadaMedia (5.9)—

Knot DNS before 2.4.5 and 2.5.x before 2.5.2 contains a flaw within the TSIG protocol implementation that would allow an attacker with a valid key name and algorithm to bypass TSIG authentication if no additional ACL restrictions are set, because of an improper TSIG validity period check.

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)

Debian — Debian LinuxKnot-dns — Knot DNS

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2017-11104",
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
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          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
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      "value": "Knot DNS before 2.4.5 and 2.5.x before 2.5.2 contains a flaw within the TSIG protocol implementation that would allow an attacker with a valid key name and algorithm to bypass TSIG authentication if no additional ACL restrictions are set, because of an improper TSIG validity period check."
    },
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      "lang": "es",
      "value": "Knot DNS anterior a versión 2.4.5 y versión 2.5.x anterior a 2.5.2, contiene un fallo dentro de la implementación del protocolo TSIG que permitiría a un atacante con un nombre de clave válido y un algoritmo omitir la autenticación TSIG si no se establecen restricciones ACL adicionales, debido a una comprobación inapropiada del período de validez TSIG."
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  "lastModified": "2026-06-17T01:01:13.540",
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}