CVE-2021-37604

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.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:P/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://www.microchip.com/product-change-notifications/#/	Vendor Advisory
https://www.microchip.com/en-us/development-tools-tools-and-software/libraries-code-examples-and-more/advanced-software-framework-for-sam-devices#Downloads	Vendor Advisory
https://www.microchip.com/en-us/products/wireless-connectivity/sub-ghz/miwi-protocol	Vendor Advisory
https://ww1.microchip.com/downloads/en/DeviceDoc/asf-release-notes-3.50.0.100-readme.pdf	Release Notes Vendor Advisory
https://www.microchip.com/en-us/products/wireless-connectivity/software-vulnerability-response/miwi-software-vulnerability	Vendor Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:microchip:miwi:6.5:*:*:*:*:*:*:*

Information

Published : 2021-08-05 09:15

Updated : 2022-07-12 10:42

NVD link : CVE-2021-37604

Mitre link : CVE-2021-37604

JSON object : View

CWE

CWE-670

Always-Incorrect Control Flow Implementation

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Products Affected

microchip

miwi

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