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CVE-2020-27208 – The flash read-out protection (RDP) level is not enforced during the devi

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.

 

Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27208

Reference (s):

  • 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

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