CVE Vulnerability

CVE-2020-27220

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.

9 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

8.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://bugs.eclipse.org/bugs/show_bug.cgi?id=569856 Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:eclipse:hono:1.5.0:*:*:*:*:*:*:*
cpe:2.3:a:eclipse:hono:*:*:*:*:*:*:*:*
Information

Published : 2021-01-14 11:15

Updated : 2021-01-22 06:34

NVD link : CVE-2020-27220

Mitre link : CVE-2020-27220

Products Affected
No products.
CWE
CWE-862