CVE-2020-9057 Information

Description

Z-Wave devices based on Silicon Labs 100 200 and 300 series chipsets do not support encryption allowing an attacker within radio range to take control of or cause a denial of service to a vulnerable device. An attacker can also capture and replay Z-Wave traffic. Firmware upgrades cannot directly address this vulnerability as it is an issue with the Z-Wave specification for these legacy chipsets. One way to protect against this vulnerability is to use 500 or 700 series chipsets that support Security 2 (S2) encryption. As examples the Linear WADWAZ-1 version 3.43 and WAPIRZ-1 version 3.43 (with 300 series chipsets) are vulnerable.

CVSS Vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://github.com/CNK2100/VFuzz-public https://kb.cert.org/vuls/id/142629 https://ieeexplore.ieee.org/document/9663293 https://doi.org/10.1109/ACCESS.2021.3138768 https://www.kb.cert.org/vuls/id/142629

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8