Improper Authorization Affecting org.eclipse.hono:hono-adapter-amqp-vertx package, versions [1.4.0,1.4.5) [1.5.0,1.5.1)
Snyk CVSS
Threat Intelligence
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-JAVA-ORGECLIPSEHONO-1061944
- published 18 Jan 2021
- disclosed 18 Jan 2021
- credit Carsten Lohmann
Introduced: 18 Jan 2021
CVE-2020-27220 Open this link in a new tabHow to fix?
Upgrade org.eclipse.hono:hono-adapter-amqp-vertx to version 1.4.5, 1.5.1 or higher.
Overview
Affected versions of this package are vulnerable to Improper Authorization. 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.