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CVE-2020-27208

nvd nist
Published: May 21, 2021Modified: Jun 17, 2026

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6.8
Vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability: 0.9 / Impact: 5.9
Source: NVD

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 (3)

Solokeys
2 products
Solo Firmware
Somu Firmware
Nitrokey
1 product
Fido2 Firmware
Configuration A
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Solo Firmware
Version 4.0.0
Running on/withPlatform Versions
Solokeys
Solo
All versions
Configuration B
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Somu Firmware
All versions
Running on/withPlatform Versions
Solokeys
Somu
All versions
Configuration C
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Fido2 Firmware
All versions
Running on/withPlatform Versions
Nitrokey
Fido2
All versions

Related CWEs

CWE-326
Inadequate Encryption Strength
The product stores or transmits sensitive data using an encryption scheme that is theoretically sound, but is not strong enough for the level of protection required.

References (12)

Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
PatchThird Party Advisory
Source: cve@mitre.org
Product
Source: cve@mitre.org
Product
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Product
Source: af854a3a-2127-422b-91ae-364da2661108
Product
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory

Timeline

No history available yet.