CVE DATABASE / CVE-2020-27211
CVE-2020-27211
CVSS 5.7 · MEDIUM
Summary
Nordic Semiconductor nRF52840 devices through 2020-10-19 have improper protection against physical side channels. The flash read-out protection (APPROTECT) can be bypassed by injecting a fault during the boot phase.
CVSS 3.1 breakdown
| Base score | 5.7 (MEDIUM) |
| Vector | CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
| Attack vector | PHYSICAL |
| Attack complexity | HIGH |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity | HIGH |
| Availability | NONE |
Weakness type (CWE)
Affected products
Nordicsemi nrf52840 firmwareNordicsemi nrf52840
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References
- https://eprint.iacr.org/2021/640
- https://infocenter.nordicsemi.com/pdf/in_133_v1.0.pdf
- https://limitedresults.com/2020/06/nrf52-debug-resurrection-approtect-bypass/
- https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html
- https://www.aisec.fraunhofer.de/en/FirmwareProtection.html
Data: NIST NVD. NVD last modified 2024-11-21. Always verify against the vendor advisory before acting.