CVE-2020-27208
MEDIUM 6.8EPSS 0.3%
The flash read-out protection (RDP) level is not enforced during the device initialization phase of the SoloKeys Solo 4.0.0 & Somu and the Nitrokey FIDO2 token. This allows an adversary to downgrade the RDP level and access secrets such as private ECC keys from SRAM via the debug interface.
- CVSS v3.1 NVD
- 6.8 MEDIUM
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS v2.0 NVD
- 4.6 MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P - EPSS
- 0.33% chance of exploitation in the next 30 days, 24th percentile
- Published
- 2021-05-21
- Updated
- 2024-08-04
Proof-of-concept exploits (1)
Security advisories
- https://eprint.iacr.org/2021/640
- solokeys/solo/commit/a9c02cd354f34b48195a342c7f524abdef5cbcec
- https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-…
- https://solokeys.com
- https://twitter.com/SoloKeysSec