CVE-2020-12061

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    CVE-2020-12061

    Published: 21 May 2021Last Modified: 11 Feb 2026

    Summary:

    Details: 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.

    References: https://cwe.mitre.org/data/definitions/523.html, https://eprint.iacr.org/2021/640.pdf, https://github.com/Nitrokey/nitrokey-fido-u2f-firmware/commits/master, https://github.com/Nitrokey/nitrokey-fido-u2f-firmware/releases, https://github.com/Nitrokey/nitrokey-fido-u2f-firmware/commits/master, https://eprint.iacr.org/2021/640.pdf

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1.01_unlimited_keys

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2020-12061 | CVE-DB