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CVE-2021-31384

Estado: ModificadaCrítica (10)—

Due to a Missing Authorization weakness and Insufficient Granularity of Access Control in a specific device configuration, a vulnerability exists in Juniper Networks Junos OS on SRX Series whereby an attacker who attempts to access J-Web administrative interfaces can successfully do so from any device interface regardless of the web-management configuration and filter rules which may otherwise protect access to J-Web. This issue affects: Juniper Networks Junos OS SRX Series 20.4 version 20.4R1 and later versions prior to 20.4R2-S1, 20.4R3; 21.1 versions prior to 21.1R1-S1, 21.1R2. This issue does not affect Juniper Networks Junos OS versions prior to 20.4R1.

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 (1)

Juniper — Junos

CWE

Referencias

JSON original (NVD)

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  "published": "2021-10-19T19:15:11.373",
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      "tags": [
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          "value": "CWE-285"
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        {
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          "value": "CWE-551"
        },
        {
          "lang": "en",
          "value": "CWE-862"
        },
        {
          "lang": "en",
          "value": "CWE-939"
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      "value": "Due to a Missing Authorization weakness and Insufficient Granularity of Access Control in a specific device configuration, a vulnerability exists in Juniper Networks Junos OS on SRX Series whereby an attacker who attempts to access J-Web administrative interfaces can successfully do so from any device interface regardless of the web-management configuration and filter rules which may otherwise protect access to J-Web. This issue affects: Juniper Networks Junos OS SRX Series 20.4 version 20.4R1 and later versions prior to 20.4R2-S1, 20.4R3; 21.1 versions prior to 21.1R1-S1, 21.1R2. This issue does not affect Juniper Networks Junos OS versions prior to 20.4R1."
    },
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      "lang": "es",
      "value": "Debido a una debilidad de Autorización Faltante y a una Granularidad Insuficiente del Control de Acceso en una configuración de dispositivo específica, se presenta una vulnerabilidad en Juniper Networks Junos OS en la serie SRX por la a un atacante que intente acceder a las interfaces administrativas de J-Web puede hacerlo con éxito desde cualquier interfaz de dispositivo, independientemente de la configuración de administración web y de las reglas de filtrado que pueden proteger el acceso a J-Web. Este problema afecta a: Juniper Networks Junos OS SRX Series 20.4 versión 20.4R1 y versiones posteriores anteriores a 20.4R2-S1, 20.4R3; versiones 21.1 anteriores a 21.1R1-S1, 21.1R2. Este problema no afecta a las versiones de Juniper Networks Junos OS anteriores a 20.4R1"
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  "lastModified": "2026-06-17T03:51:41.863",
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