CVE-2020-27220
8.8 · HIGHOverview
CVE-2020-27220 is a high-severity vulnerability affecting eclipse hono. It was published on January 14, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
The Eclipse Hono AMQP and MQTT protocol adapters do not check whether an authenticated gateway device is authorized to receive command & control messages when it has subscribed only to commands for a specific device. The missing check involves verifying that the command target device is configured giving permission for the gateway device to act on its behalf. This means an authenticated device of a certain tenant, notably also a non-gateway device acting like a gateway, may receive command & control messages targeted at a different device of the same tenant without corresponding permissions getting checked.
Remediation
Check the references section for vendor advisories and patches from eclipse. Update hono to the latest patched version. 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.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| eclipse | hono | 1.4.0 | Affected |
Frequently Asked Questions
What is CVE-2020-27220?
CVE-2020-27220 is a high-severity vulnerability affecting eclipse hono. It was published on January 14, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2020-27220?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2020-27220?
Check the references section for vendor advisories and patches from eclipse. Update hono to the latest patched version. 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-2020-27220?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-27220 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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