PT-2021-11318 · Eclipse · Eclipse Hono

Carsten Lohmann · Published 2021-01-14 · Updated 2021-01-22 · CVE-2020-27220

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: Eclipse Hono (affected versions not specified)

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.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2020-27220

Affected Products

Eclipse Hono

References · 5

• https://osv.dev/vulnerability/CVE-2020-27220 · Vendor Advisory
• https://bugs.eclipse.org/bugs/show_bug.cgi?id=569856 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-27220 · Security Note
• https://t.me/cvenotify/8561 · Telegram Post
• https://t.me/cibsecurity/22193 · Telegram Post