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CVE-2023-31421

Estado: ModificadaAlta (7.5)—

It was discovered that when acting as TLS clients, Beats, Elastic Agent, APM Server, and Fleet Server did not verify whether the server certificate is valid for the target IP address; however, certificate signature validation is still performed. More specifically, when the client is configured to connect to an IP address (instead of a hostname) it does not validate the server certificate's IP SAN values against that IP address and certificate validation fails, and therefore the connection is not blocked as expected.

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 (4)

Elastic — APM ServerElastic — Elastic AgentElastic — Elastic BeatsElastic — Elastic Fleet Server

CWE

Referencias

JSON original (NVD)

Mostrar
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          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
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  "vulnStatus": "Modified",
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      "value": "It was discovered that when acting as TLS clients, Beats, Elastic Agent, APM Server, and Fleet Server did not verify whether the server certificate is valid for the target IP address; however, certificate signature validation is still performed. More specifically, when the client is configured to connect to an IP address (instead of a hostname) it does not validate the server certificate's IP SAN values against that IP address and certificate validation fails, and therefore the connection is not blocked as expected."
    },
    {
      "lang": "es",
      "value": "Se descubrió que cuando actuaban como Clientes TLS, Beats, Elastic Agent, APM Server y Fleet Server no verificaban si el certificado del servidor es válido para la dirección IP de destino; sin embargo, aún se realiza la validación de la firma del certificado. Más específicamente, cuando el cliente está configurado para conectarse a una dirección IP (en lugar de un nombre de host), no valida los valores IP SAN del certificado del servidor con esa dirección IP y la validación del certificado falla y, por lo tanto, la conexión no se bloquea como se esperaba."
    }
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  "lastModified": "2026-06-17T05:56:54.707",
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