CVEs-PoC/2020/CVE-2020-27211.md

### [CVE-2020-27211](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27211)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### 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.

### POC

#### Reference
- https://eprint.iacr.org/2021/640
- https://limitedresults.com/2020/06/nrf52-debug-resurrection-approtect-bypass/
- https://www.aisec.fraunhofer.de/en/FirmwareProtection.html

#### Github
No PoCs found on GitHub currently.