VulnerabilityModified
CVE-2020-12061
This allows an adversary to eavesdrop the communication and derive the secrets stored in the microcontroller.
CRITICAL 9.8EPSS 1.85%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.85%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.85% probability · 78th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-522
- Affected
- nitrokey/fido u2f firmware
- Source
- cve@mitre.org
References
- https://cwe.mitre.org/data/definitions/523.htmlThird Party Advisory
- https://eprint.iacr.org/2021/640.pdfExploit, Third Party Advisory
- https://github.com/Nitrokey/nitrokey-fido-u2f-firmware/commits/masterPatch, Third Party Advisory
- https://github.com/Nitrokey/nitrokey-fido-u2f-firmware/releasesThird Party Advisory
- https://cwe.mitre.org/data/definitions/523.htmlThird Party Advisory
- https://eprint.iacr.org/2021/640.pdfExploit, Third Party Advisory
- https://github.com/Nitrokey/nitrokey-fido-u2f-firmware/commits/masterPatch, Third Party Advisory
- https://github.com/Nitrokey/nitrokey-fido-u2f-firmware/releasesThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.