Detections
Analytics
CVE-2021-37604
high
Description
In version 6.5 of Microchip MiWi software and all previous versions including legacy products, there is a possibility of frame counters being validated/updated prior to the message authentication. With this vulnerability in place, an attacker may increment the incoming frame counter values by injecting messages with a sufficiently large frame counter value and invalid payload. This results in denial of service/valid packets in the network. There is also a possibility of a replay attack in the stack.
References
https://www.microchip.com/product-change-notifications/#/
https://www.microchip.com/en-us/products/wireless-connectivity/sub-ghz/miwi-protocol
https://ww1.microchip.com/downloads/en/DeviceDoc/asf-release-notes-3.50.0.100-readme.pdf