CVEvulnerability
CVE-2020-12061
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2021-05-21
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:N
- Weaknesses
- CWE-522
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.
Affected configurations
• nitrokey fido u2f firmware (<= 1.1)
Related
Weakness · CWE (1)
- CWE-522 Insufficiently Protected Credentials weakness
References
- https://cwe.mitre.org/data/definitions/523.html Third Party Advisory
- https://eprint.iacr.org/2021/640.pdf Exploit, Third Party Advisory
- https://github.com/Nitrokey/nitrokey-fido-u2f-firmware/commits/master Patch, Third Party Advisory
- https://github.com/Nitrokey/nitrokey-fido-u2f-firmware/releases Third Party Advisory
- https://cwe.mitre.org/data/definitions/523.html Third Party Advisory
- https://eprint.iacr.org/2021/640.pdf Exploit, Third Party Advisory
- https://github.com/Nitrokey/nitrokey-fido-u2f-firmware/commits/master Patch, Third Party Advisory
- https://github.com/Nitrokey/nitrokey-fido-u2f-firmware/releases Third Party Advisory