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CVE-2020-27208

MEDIUM

6.8

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.

CVE Details

CVSS v3.1 Score6.8

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorPHYSICAL

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published5/21/2021

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

nitrokey:fido2nitrokey:fido2_firmwaresolokeys:solosolokeys:solo_firmwaresolokeys:somusolokeys:somu_firmware

Weaknesses (CWE)

CWE-326

References

https://eprint.iacr.org/2021/640(cve@mitre.org)

https://github.com/solokeys/solo/commit/a9c02cd354f34b48195a342c7f524abdef5cbcec(cve@mitre.org)

https://solokeys.com(cve@mitre.org)

https://twitter.com/SoloKeysSec(cve@mitre.org)

https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html(cve@mitre.org)

https://www.aisec.fraunhofer.de/en/FirmwareProtection.html(cve@mitre.org)

https://eprint.iacr.org/2021/640(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/solokeys/solo/commit/a9c02cd354f34b48195a342c7f524abdef5cbcec(af854a3a-2127-422b-91ae-364da2661108)

https://solokeys.com(af854a3a-2127-422b-91ae-364da2661108)

https://twitter.com/SoloKeysSec(af854a3a-2127-422b-91ae-364da2661108)

https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html(af854a3a-2127-422b-91ae-364da2661108)

https://www.aisec.fraunhofer.de/en/FirmwareProtection.html(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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