CVE-2020-9059 Denial of service in 500 series
Attackers can exhaust battery life in Z-Wave devices using S0 authentication, causing locks to fail open and bypass security.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-9059?
CVE-2020-9059 is a medium-severity denial of service vulnerability in Schlage 500 series, published on 7 Jan 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Z-Wave devices based on Silicon Labs 500 series chipsets using S0 authentication are susceptible to uncontrolled resource consumption leading to battery exhaustion. As an example, the Schlage BE468 version 3.42 door lock is vulnerable and fails open at a low battery level.
Which versions are affected by CVE-2020-9059?
It affects 2 products.
Products include Schlage Be468, Silabs 500 Series Firmware.
How do I fix CVE-2020-9059?
No fix has been published for CVE-2020-9059 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2020-9059 being exploited?
There is no known exploitation of CVE-2020-9059 in the wild and no public exploit code.
Sources
Also known as GHSA-v533-m73v-h37v.