CVE-2020-9061 Explained : Impact and Mitigation

Z-Wave devices using Silicon Labs 500 and 700 series chipsets, including SiLabs UZB-7, ZooZ ZST10, Aeon Labs ZW090-A, and Samsung STH-ETH-200, are vulnerable to denial of service attacks via malformed routing messages.

Understanding CVE-2020-9061

This CVE identifies a vulnerability in Z-Wave devices that can be exploited to cause denial of service.

What is CVE-2020-9061?

CVE-2020-9061 is a vulnerability affecting Z-Wave devices utilizing specific chipsets, potentially leading to denial of service attacks.

The Impact of CVE-2020-9061

The vulnerability allows attackers to disrupt the normal operation of affected Z-Wave devices, potentially causing service interruptions.

Technical Details of CVE-2020-9061

This section provides technical insights into the vulnerability.

Vulnerability Description

The vulnerability in Z-Wave devices using Silicon Labs chipsets allows for denial of service attacks through malformed routing messages.

Affected Systems and Versions

ZooZ ZST10 version 6.04
Silicon Labs 500 series (all versions)
Silicon Labs 700 series (all versions)
Silicon Labs UZB-7 version 7.00
Samsung STH-ETH-200 version 6.04
Aeon Labs ZW090-A version 3.95

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted routing messages to the affected Z-Wave devices, causing them to become unresponsive.

Mitigation and Prevention

Protecting systems from CVE-2020-9061 is crucial to maintaining security.

Immediate Steps to Take

Apply security patches provided by the device manufacturers promptly.
Monitor network traffic for any suspicious activity targeting Z-Wave devices.
Implement network segmentation to isolate vulnerable devices.

Long-Term Security Practices

Regularly update firmware and software on Z-Wave devices to mitigate known vulnerabilities.
Conduct security assessments and penetration testing to identify and address potential weaknesses.

Patching and Updates

Stay informed about security advisories and updates from device vendors.
Implement a robust patch management process to ensure timely deployment of security fixes.