Detections
Analytics

CVE-2020-27211

medium

Description

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.

References

https://www.aisec.fraunhofer.de/en/FirmwareProtection.html

https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html

https://limitedresults.com/2020/06/nrf52-debug-resurrection-approtect-bypass/

https://infocenter.nordicsemi.com/pdf/in_133_v1.0.pdf

https://eprint.iacr.org/2021/640

Details

Source: Mitre, NVD

Published: 2021-05-21

Updated: 2022-05-03

Risk Information

CVSS v2

Base Score: 3.3

Vector: CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:N

Severity: Low

CVSS v3

Base Score: 5.7

Vector: CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Severity: Medium

EPSS

EPSS: 0.00078