Vulnerability · Published May 21, 2021 · Assigned by mitre
CVE-2020-27208
Medium 6.8
In plain English
A medium-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).
Severity (CVSS NVD)6.8Medium
Exploit odds (30 days)0.3%top 74.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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 (as reported)
References
- https://www.aisec.fraunhofer.de/en/FirmwareProtection.html x_refsource_MISC
- https://twitter.com/SoloKeysSec x_refsource_MISC
- https://solokeys.com x_refsource_MISC
- https://eprint.iacr.org/2021/640 x_refsource_MISC
- https://github.com/solokeys/solo/commit/a9c02cd354f34b48195a342c7f524abdef5cbcec x_refsource_MISC
- https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html x_refsource_MISC