Vulnerability Monitor

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CVE-2020-27211

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.

Published

2021-05-21T13:15:07.627

Last Modified

2024-11-21T05:20:51.807

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.7 (MEDIUM)

CVSSv2 Vector

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

Access Vector: LOCAL
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

3.4

Impact Score

4.9

Weaknesses

Type: Primary
CWE-203

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	nordicsemi	nrf52840_firmware	≤ 2020-10-19	Yes
Hardware	nordicsemi	nrf52840	-	No

References

https://eprint.iacr.org/2021/640 Third Party Advisory ([email protected])
https://infocenter.nordicsemi.com/pdf/in_133_v1.0.pdf Third Party Advisory ([email protected])
https://limitedresults.com/2020/06/nrf52-debug-resurrection-approtect-bypass/ Third Party Advisory ([email protected])
https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html Third Party Advisory ([email protected])
https://www.aisec.fraunhofer.de/en/FirmwareProtection.html Third Party Advisory ([email protected])
https://eprint.iacr.org/2021/640 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://infocenter.nordicsemi.com/pdf/in_133_v1.0.pdf Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://limitedresults.com/2020/06/nrf52-debug-resurrection-approtect-bypass/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.aisec.fraunhofer.de/en/FirmwareProtection.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)