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.
CVSS 3.x
| Source | Score | Severity | Vector | Exploitability | Impact |
|---|---|---|---|---|---|
| nvd@nist.gov | 6.8 | MEDIUM | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | 0.9 | 5.9 |
CVSS 2.0
Severity: MEDIUM
Problem Type: CWE-326,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| nitrokey | fido2_firmware | - |
| solokeys | solo_firmware | 4.0.0 |
| solokeys | somu_firmware | - |