Vulnerability · Published Jan 14, 2021 · Assigned by eclipse

CVE-2020-27220

High 8.8

In plain English

A high-severity missing authorization in Eclipse Hono from The Eclipse Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 67% of all known vulnerabilities).

Severity (CVSS NVD)8.8High

Exploit odds (30 days)1.2%top 32.7% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
The Eclipse Foundation	Eclipse Hono	1.4.0 to 1.4.4 inclusive, 1.5.0

Weakness: CWE-862

References

https://bugs.eclipse.org/bugs/show_bug.cgi?id=569856 x_refsource_CONFIRM