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CVE-2020-28952

7.5 · HIGH

An issue was discovered on Athom Homey and Homey Pro devices before 5.0.0.

Published Mar 9, 2021CWE-798EPSS 1.30%

Overview

CVE-2020-28952 is a high-severity vulnerability. It was published on March 9, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

An issue was discovered on Athom Homey and Homey Pro devices before 5.0.0. ZigBee hub devices should generate a unique Standard Network Key that is then exchanged with all enrolled devices so that all inter-device communication is encrypted. However, the cited Athom products use another widely known key that is designed for testing purposes: "01030507090b0d0f00020406080a0c0d" (the decimal equivalent of 1 3 5 7 9 11 13 15 0 2 4 6 8 10 12 13), which is human generated and static across all issued devices.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refdeveloper.athom.com/firmwareRefhomey.app/en-us/Refyougottahackthat.com/blog/1260/athom-homey-security-static-and-well-known-keys-cve-2020-28952Refdeveloper.athom.com/firmwareRefhomey.app/en-us/Refyougottahackthat.com/blog/1260/athom-homey-security-static-and-well-known-keys-cve-2020-28952

How CyberStrike helps

Frequently asked questions

What is CVE-2020-28952?

CVE-2020-28952 is a high-severity vulnerability. It was published on March 9, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2020-28952?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2020-28952?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-28952?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-28952 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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