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CVE-2020-8858

Estado: ModificadaAlta (8.8)—

Esta vulnerabilidad permite a atacantes remotos ejecutar código arbitrario en las instalaciones afectadas de Moxa MGate 5105-MB-EIP versión de firmware 4.1. Es requerida una autenticación para explotar esta vulnerabilidad. El fallo específico se presenta dentro del parámetro DestIP dentro del archivo MainPing.asp. El problema resulta de una falta de comprobación apropiada de una cadena suministrada por parte del usuario antes de usarla para ejecutar una llamada al sistema. Un atacante puede aprovechar esta vulnerabilidad para ejecutar código en el contexto de root. Fue ZDI-CAN-9552.

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)

Moxa — Mgate 5105-mb-eip-t FirmwareMoxa — Mgate 5105-mb-eip Firmware

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2020-8858",
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          "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
          "authentication": "SINGLE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
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          "confidentialityImpact": "COMPLETE"
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        "acInsufInfo": false,
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  "published": "2020-02-14T18:15:11.433",
  "references": [
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      "url": "https://www.moxa.com/en/support/support/security-advisory/mgate-5105-mb-eip-series-protocol-gateways-vulnerability",
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  "vulnStatus": "Modified",
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      "description": [
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  "descriptions": [
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      "lang": "en",
      "value": "This vulnerability allows remote attackers to execute arbitrary code on affected installations of Moxa MGate 5105-MB-EIP firmware version 4.1. Authentication is required to exploit this vulnerability. The specific flaw exists within the DestIP parameter within MainPing.asp. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-9552."
    },
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      "value": "Esta vulnerabilidad permite a atacantes remotos ejecutar código arbitrario en las instalaciones afectadas de Moxa MGate 5105-MB-EIP versión de firmware 4.1. Es requerida una autenticación para explotar esta vulnerabilidad. El fallo específico se presenta dentro del parámetro DestIP dentro del archivo MainPing.asp. El problema resulta de una falta de comprobación apropiada de una cadena suministrada por parte del usuario antes de usarla para ejecutar una llamada al sistema. Un atacante puede aprovechar esta vulnerabilidad para ejecutar código en el contexto de root. Fue ZDI-CAN-9552."
    }
  ],
  "lastModified": "2026-06-17T03:27:04.780",
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