CVE-2020-12789: High severity microchip atsama5d21c-cu firmware vulnerability

Published Sep 14, 2020

Updated

The Secure Monitor in Microchip Atmel ATSAMA5 products use a hardcoded key to encrypt and authenticate secure applets.

Affected Software

152 affected components

Microchip Atsama5d21c-cu Firmware

Microchip Atsama5d21c-cu

Microchip Atsama5d21c-cur Firmware

Microchip Atsama5d21c-cur

Microchip Atsama5d22c-cn Firmware

Microchip Atsama5d22c-cn

Microchip Atsama5d22c-cnr Firmware

Microchip Atsama5d22c-cnr

Microchip Atsama5d22c-cu Firmware

Microchip Atsama5d22c-cu

Microchip Atsama5d22c-cur Firmware

Microchip Atsama5d22c-cur

Microchip Atsama5d23c-cn Firmware

Microchip Atsama5d23c-cn

Microchip Atsama5d23c-cnr Firmware

Microchip Atsama5d23c-cnr

Microchip Atsama5d23c-cu Firmware

Microchip Atsama5d23c-cu

Microchip Atsama5d23c-cur Firmware

Microchip Atsama5d23c-cur

Microchip Atsama5d24c-cu Firmware

Microchip Atsama5d24c-cu

Microchip Atsama5d24c-cuf Firmware

Microchip Atsama5d24c-cuf

Microchip Atsama5d24c-cur Firmware

Microchip Atsama5d24c-cur

Microchip Atsama5d26c-cn Firmware

Microchip Atsama5d26c-cn

Microchip Atsama5d26c-cnr Firmware

Microchip Atsama5d26c-cnr

Microchip Atsama5d26c-cu Firmware

Microchip Atsama5d26c-cu

Microchip Atsama5d26c-cur Firmware

Microchip Atsama5d26c-cur

Microchip Atsama5d27c-cn Firmware

Microchip Atsama5d27c-cn

Microchip Atsama5d27c-cnr Firmware

Microchip Atsama5d27c-cnr

Microchip Atsama5d27c-cu Firmware

Microchip Atsama5d27c-cu

Microchip Atsama5d27c-cur Firmware

Microchip Atsama5d27c-cur

Microchip Atsama5d28c-cn Firmware

Microchip Atsama5d28c-cn

Microchip Atsama5d28c-cnr Firmware

Microchip Atsama5d28c-cnr

Microchip Atsama5d28c-cu Firmware

Microchip Atsama5d28c-cu

Microchip Atsama5d28c-cur Firmware

Microchip Atsama5d28c-cur

Microchip Atsama5d27c-cnvao Firmware

Microchip Atsama5d27c-cnvao

Microchip Atsama5d27c-cnrvao Firmware

Microchip Atsama5d27c-cnrvao

Microchip Atsama5d225c-d1m-cur Firmware

Microchip Atsama5d225c-d1m-cur

Microchip Atsama5d27c-d5m-cu Firmware

Microchip Atsama5d27c-d5m-cu

Microchip Atsama5d27c-d5m-cur Firmware

Microchip Atsama5d27c-d5m-cur

Microchip Atsama5d27c-d1g-cu Firmware

Microchip Atsama5d27c-d1g-cu

Microchip Atsama5d27c-d1g-cur Firmware

Microchip Atsama5d27c-d1g-cur

Microchip Atsama5d28c-d1g-cu Firmware

Microchip Atsama5d28c-d1g-cu

Microchip Atsama5d28c-d1g-cur Firmware

Microchip Atsama5d28c-d1g-cur

Microchip Atsama5d27c-ld1g-cu Firmware

Microchip Atsama5d27c-ld1g-cu

Microchip Atsama5d27c-ld1g-cur Firmware

Microchip Atsama5d27c-ld1g-cur

Microchip Atsama5d27c-ld2g-cu Firmware

Microchip Atsama5d27c-ld2g-cu

Microchip Atsama5d27c-ld2g-cur Firmware

Microchip Atsama5d27c-ld2g-cur

Microchip Atsama5d28c-ld1g-cu Firmware

Microchip Atsama5d28c-ld1g-cu

Microchip Atsama5d28c-ld1g-cur Firmware

Microchip Atsama5d28c-ld1g-cur

Microchip Atsama5d28c-ld2g-cu Firmware

Microchip Atsama5d28c-ld2g-cu

Microchip Atsama5d28c-ld2g-cur Firmware

Microchip Atsama5d28c-ld2g-cur

Microchip Atsama5d27-wlsom1 Firmware

Microchip Atsama5d27-wlsom1

Microchip Atsama5d27-som1 Firmware

Microchip Atsama5d27-som1

Microchip Atsama5d31a-cu Firmware

Microchip Atsama5d31a-cu

Microchip Atsama5d31a-cur Firmware

Microchip Atsama5d31a-cur

Microchip Atsama5d31a-cfu Firmware

Microchip Atsama5d31a-cfu

Microchip Atsama5d31a-cfur Firmware

Microchip Atsama5d31a-cfur

Microchip Atsama5d33a-cu Firmware

Microchip Atsama5d33a-cu

Microchip Atsama5d33a-cur Firmware

Microchip Atsama5d33a-cur

Microchip Atsama5d34a-cu Firmware

Microchip Atsama5d34a-cu

Microchip Atsama5d34a-cur Firmware

Microchip Atsama5d34a-cur

Microchip Atsama5d35a-cu Firmware

Microchip Atsama5d35a-cu

Microchip Atsama5d35a-cur Firmware

Microchip Atsama5d35a-cur

Microchip Atsama5d35a-cn Firmware

Microchip Atsama5d35a-cn

Microchip Atsama5d35a-cnr Firmware

Microchip Atsama5d35a-cnr

Microchip Atsama5d36a-cu Firmware

Microchip Atsama5d36a-cu

Microchip Atsama5d36a-cur Firmware

Microchip Atsama5d36a-cur

Microchip Atsama5d36a-cn Firmware

Microchip Atsama5d36a-cn

Microchip Atsama5d36a-cnr Firmware

Microchip Atsama5d36a-cnr

Microchip Atsama5d41a-cu Firmware

Microchip Atsama5d41a-cu

Microchip Atsama5d41a-cur Firmware

Microchip Atsama5d41a-cur

Microchip Atsama5d41b-cu Firmware

Microchip Atsama5d41b-cu

Microchip Atsama5d41b-cur Firmware

Microchip Atsama5d41b-cur

Microchip Atsama5d42a-cu Firmware

Microchip Atsama5d42a-cu

Microchip Atsama5d42a-cur Firmware

Microchip Atsama5d42a-cur

Microchip Atsama5d42b-cu Firmware

Microchip Atsama5d42b-cu

Microchip Atsama5d42b-cur Firmware

Microchip Atsama5d42b-cur

Microchip Atsama5d43a-cu Firmware

Microchip Atsama5d43a-cu

Microchip Atsama5d43a-cur Firmware

Microchip Atsama5d43a-cur

Microchip Atsama5d43b-cu Firmware

Microchip Atsama5d43b-cu

Microchip Atsama5d43b-cur Firmware

Microchip Atsama5d43b-cur

Microchip Atsama5d44a-cu Firmware

Microchip Atsama5d44a-cu

Microchip Atsama5d44a-cur Firmware

Microchip Atsama5d44a-cur

Microchip Atsama5d44b-cu Firmware

Microchip Atsama5d44b-cu

Microchip Atsama5d44b-cur Firmware

Microchip Atsama5d44b-cur

Event History

Sep 14, 2020

CVE Published

via MITRE·01:24 PM

Data Sourced

via MITRE·01:24 PM

Description

Frequently Asked Questions

What is the severity of CVE-2020-12789?

CVE-2020-12789 has a medium severity rating due to the impact of potential unauthorized access to secure applets.

How do I fix CVE-2020-12789?

To fix CVE-2020-12789, update to the latest firmware version provided by Microchip that addresses the hardcoded key issue.

What products are affected by CVE-2020-12789?

CVE-2020-12789 affects multiple Microchip Atmel ATSAMA5 products, including various firmware versions for ATSAMA5D21, ATSAMA5D22, ATSAMA5D23, and others.

What vulnerabilities does CVE-2020-12789 exploit?

CVE-2020-12789 exploits the use of a hardcoded key in the Secure Monitor to encrypt and authenticate secure applets.

What are the potential impacts of CVE-2020-12789?

The potential impacts of CVE-2020-12789 include unauthorized access to secure applets as a result of improper key management.