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.

CVSS v3.0 5.7 MEDIUM
CVSS v2.0 3.3 LOW

5.7^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 0.5 / Impact : 5.2

Attack Vector PHYSICAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

3.3^/10

CVSS v2.0 : LOW

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

Exploitability : 3.4 / Impact : 4.9

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://limitedresults.com/2020/06/nrf52-debug-resurrection-approtect-bypass/	Third Party Advisory
https://eprint.iacr.org/2021/640	Third Party Advisory
https://infocenter.nordicsemi.com/pdf/in_133_v1.0.pdf	Third Party Advisory
https://www.aisec.fraunhofer.de/en/FirmwareProtection.html	Third Party Advisory
https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html	Third Party Advisory

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Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:nordicsemi:nrf52840_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:nordicsemi:nrf52840:-:*:*:*:*:*:*:*

Information

Published : 2021-05-21 06:15

Updated : 2022-05-03 09:04

NVD link : CVE-2020-27211

Mitre link : CVE-2020-27211

JSON object : View

CWE

CWE-203

Observable Discrepancy

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Products Affected

nordicsemi

nrf52840
nrf52840_firmware

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