medium6.8
CVE-2020-27208
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.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Solokeys | Solo Firmware | Version 4.0.0 |
| Solokeys | Somu Firmware | All versions |
| Nitrokey | Fido2 Firmware | All versions |
Weakness classification
References
- NVD record
- CVE.org record
- https://eprint.iacr.org/2021/640
- https://github.com/solokeys/solo/commit/a9c02cd354f34b48195a342c7f524abdef5cbcec
- https://solokeys.com
- https://twitter.com/SoloKeysSec
- https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html
- https://www.aisec.fraunhofer.de/en/FirmwareProtection.html
- https://eprint.iacr.org/2021/640
- https://github.com/solokeys/solo/commit/a9c02cd354f34b48195a342c7f524abdef5cbcec
- https://solokeys.com
- https://twitter.com/SoloKeysSec
- https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html
- https://www.aisec.fraunhofer.de/en/FirmwareProtection.html