CVE-2021-37604
First published: Thu Aug 05 2021(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microchip MiWi | =6.5 |
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Reference Links
- https://ww1.microchip.com/downloads/en/DeviceDoc/asf-release-notes-3.50.0.100-readme.pdf
- https://www.microchip.com/en-us/development-tools-tools-and-software/libraries-code-examples-and-more/advanced-software-framework-for-sam-devices#Downloads
- https://www.microchip.com/en-us/products/wireless-connectivity/software-vulnerability-response/miwi-software-vulnerability
- https://www.microchip.com/en-us/products/wireless-connectivity/sub-ghz/miwi-protocol
- https://www.microchip.com/product-change-notifications/#/
Frequently Asked Questions
What is CVE-2021-37604?
CVE-2021-37604 is a vulnerability in version 6.5 of Microchip MiWi software and all previous versions, including legacy products, that allows an attacker to increment incoming frame counter values.
What is the severity of CVE-2021-37604?
CVE-2021-37604 has a severity rating of high with a CVSS score of 7.5.
How does CVE-2021-37604 affect Microchip MiWi software?
CVE-2021-37604 affects version 6.5 of Microchip MiWi software and all previous versions, including legacy products, by potentially allowing an attacker to manipulate frame counter values.
Is CVE-2021-37604 specific to a certain version of Microchip MiWi software?
CVE-2021-37604 is specific to version 6.5 of Microchip MiWi software and all previous versions, including legacy products.
How can I mitigate the vulnerability in Microchip MiWi software?
To mitigate the vulnerability, it is recommended to update Microchip MiWi software to a version that is not affected by CVE-2021-37604.
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