CVE-2020-12061 Information

Description

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 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://github.com/Nitrokey/nitrokey-fido-u2f-firmware/releases https://eprint.iacr.org/2021/640.pdf https://github.com/Nitrokey/nitrokey-fido-u2f-firmware/commits/master

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8