CVE-2020-27211
Severity Score
5.7
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
Los dispositivos Nordic Semiconductor nRF52840 hasta el 2020-10-19 presentan una protección inadecuada contra los canales laterales físicos. La protección de lectura flash (APPROTECT) se puede omitir inyectando un fallo durante la fase de arranque
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2020-10-19 CVE Reserved
- 2021-05-21 CVE Published
- 2024-02-04 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-203: Observable Discrepancy
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| https://eprint.iacr.org/2021/640 | Third Party Advisory | |
| https://infocenter.nordicsemi.com/pdf/in_133_v1.0.pdf | Third Party Advisory | |
| https://limitedresults.com/2020/06/nrf52-debug-resurrection-approtect-bypass | 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 | |
| https://www.aisec.fraunhofer.de/en/FirmwareProtection.html | Third Party Advisory |
| URL | Date | SRC |
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| URL | Date | SRC |
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| URL | Date | SRC |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Nordicsemi Search vendor "Nordicsemi" | Nrf52840 Firmware Search vendor "Nordicsemi" for product "Nrf52840 Firmware" | <= 2020-10-19 Search vendor "Nordicsemi" for product "Nrf52840 Firmware" and version " <= 2020-10-19" | - |
Affected
| in | Nordicsemi Search vendor "Nordicsemi" | Nrf52840 Search vendor "Nordicsemi" for product "Nrf52840" | - | - |
Safe
|