CVEvulnerability

CVE-2020-27220

8.8 HIGH Published 2021-01-14 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-01-14
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
9.0 HIGH — AV:N/AC:L/Au:S/C:C/I:C/A:C
Weaknesses
CWE-862

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 configurations

• eclipse hono (>= 1.4.0 <= 1.4.4) • eclipse hono 1.5.0

Related

Weakness · CWE (1)

  • CWE-862 Missing Authorization weakness

References