Vulnerability · Published Jan 7, 2022 · Assigned by certcc
CVE-2020-9057
High 8.8
In plain English
A high-severity security flaw in WADWAZ-1 from Linear. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Linear | WADWAZ-1 | 3.43 |
| Linear | WAPIRZ-1 | 3.43 |
| Silicon Labs | 100 series | all |
| Silicon Labs | 200 series | all |
| Silicon Labs | 300 series | all |
Weakness: CWE-311
References
- https://kb.cert.org/vuls/id/142629 third-party-advisory, x_refsource_CERT-VN
- https://ieeexplore.ieee.org/document/9663293 x_refsource_MISC
- https://github.com/CNK2100/VFuzz-public x_refsource_MISC
- https://doi.org/10.1109/ACCESS.2021.3138768 x_refsource_MISC
- VU#142629 third-party-advisory, x_refsource_CERT-VN