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CVE-2020-12061

Estado: ModificadaCrítica (9.8)—

An issue was discovered in Nitrokey FIDO U2F firmware through 1.1. Communication between the microcontroller and the secure element transmits credentials in plain. This allows an adversary to eavesdrop the communication and derive the secrets stored in the microcontroller. As a result, the attacker is able to arbitrarily manipulate the firmware of the microcontroller.

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)

Nitrokey — Fido U2F Firmware

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2020-12061",
  "cveTags": [],
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
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  "affected": [
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  "published": "2021-05-21T12:15:07.613",
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  "vulnStatus": "Modified",
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      "value": "An issue was discovered in Nitrokey FIDO U2F firmware through 1.1. Communication between the microcontroller and the secure element transmits credentials in plain. This allows an adversary to eavesdrop the communication and derive the secrets stored in the microcontroller. As a result, the attacker is able to arbitrarily manipulate the firmware of the microcontroller."
    },
    {
      "lang": "es",
      "value": "Se detectó un problema en Nitrokey FIDO U2F versión de firmware hasta 1.1. La comunicación entre el microcontrolador y el elemento seguro transmite las credenciales en plano. Esto permite que un adversario rastree la comunicación y obtenga los secretos almacenados en el microcontrolador. Como resultado, el atacante puede manipular arbitrariamente el firmware del microcontrolador"
    }
  ],
  "lastModified": "2026-06-17T02:51:21.640",
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