CVE-2020-27211 Security feature bypass in n/a

Medium 5.7 Published Updated

Attackers can bypass flash read-out protection on Nordic nRF52840 devices via physical fault injection during boot, exposing firmware data.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-27211?

CVE-2020-27211 is a medium-severity vulnerability in n/a, published on 21 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-203

Which versions are affected by CVE-2020-27211?

It affects 1 product.

Products include Nordicsemi Nrf52840 Firmware.

How do I fix CVE-2020-27211?

No fix has been published for CVE-2020-27211 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-27211 being exploited?

There is no known exploitation of CVE-2020-27211 in the wild and no public exploit code.

Sources

Also known as GHSA-g62r-h4q8-qx29.

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