CVE-2020-9060 Denial of service in 500 series

Medium 6.5 Published Updated

Attackers can cause denial of service and resource exhaustion in Z-Wave devices by sending malformed security or request messages.

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-2020-9060?

CVE-2020-9060 is a medium-severity denial of service vulnerability in Aeon Labs 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 S2, including but likely not limited to the ZooZ ZST10 version 6.04, ZooZ ZEN20 version 5.03, ZooZ ZEN25 version 5.03, Aeon Labs ZW090-A version 3.95, and Fibaro FGWPB-111 version 4.3, are susceptible to denial of service and resource exhaustion via malformed SECURITY NONCE GET, SECURITY NONCE GET 2, NO OPERATION, or NIF REQUEST messages.

Weakness: CWE-400, CWE-346

Which versions are affected by CVE-2020-9060?

It affects 6 products.

Products include Aeotec Zw090-A, Fibaro Fgwpb-111, Silabs 500 Series Firmware, Zooz Zen20, Zooz Zen25, Zooz Zst10.

How do I fix CVE-2020-9060?

No fix has been published for CVE-2020-9060 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-2020-9060 being exploited?

There is no known exploitation of CVE-2020-9060 in the wild and no public exploit code.

Sources

Also known as GHSA-rcjh-h6hv-xwcc.

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