CVE-2021-20989

Fibaro Home Center Insufficient remote access server authorization

Severity Score

5.9

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Fibaro Home Center 2 and Lite devices with firmware version 4.600 and older initiate SSH connections to the Fibaro cloud to provide remote access and remote support capabilities. This connection can be intercepted using DNS spoofing attack and a device initiated remote port-forward channel can be used to connect to the web management interface. Knowledge of authorization credentials to the management interface is required to perform any further actions.

Los dispositivos Fibaro Home Center versión 2 y Lite con versiones de firmware 4.600 y anteriores, inician conexiones SSH a la nube de Fibaro para proporcionar acceso remoto y capacidades de soporte remoto. Esta conexión puede ser interceptada usando un ataque de suplantación de DNS y puede ser usado un canal de reenvío de puerto remoto iniciado por el dispositivo para conectarse a la interfaz de administración web. Es requerido un conocimiento de unas credenciales de autorización para la interfaz de administración para llevar a cabo cualquier acción adicional

Fibaro Home Center Light and Fibaro Home Center 2 versions 4.600 and below suffer from man-in-the-middle, missing authentication, remote command execution, and missing encryption vulnerabilities.

*Credits: Marton Illes IoT Inspector Research Lab https://www.iot-inspector.com

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-12-17 CVE Reserved
2021-04-19 CVE Published
2024-09-17 CVE Updated
2024-09-17 First Exploit
2024-09-22 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-295: Improper Certificate Validation

CAPEC

References (3)

URL	Tag	Source
http://seclists.org/fulldisclosure/2021/Apr/27	Mailing List

URL	Date	SRC
http://packetstormsecurity.com/files/162243/Fibaro-Home-Center-MITM-Missing-Authentication-Code-Execution.html	2024-09-17
https://www.iot-inspector.com/blog/advisory-fibaro-home-center	2024-09-17

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Fibaro Search vendor "Fibaro"	Home Center 2 Firmware Search vendor "Fibaro" for product "Home Center 2 Firmware"	<= 4.600 Search vendor "Fibaro" for product "Home Center 2 Firmware" and version " <= 4.600"	-	Affected	in	Fibaro Search vendor "Fibaro"	Home Center 2 Search vendor "Fibaro" for product "Home Center 2"	-	-	Safe
Fibaro Search vendor "Fibaro"	Home Center Lite Firmware Search vendor "Fibaro" for product "Home Center Lite Firmware"	<= 4.600 Search vendor "Fibaro" for product "Home Center Lite Firmware" and version " <= 4.600"	-	Affected	in	Fibaro Search vendor "Fibaro"	Home Center Lite Search vendor "Fibaro" for product "Home Center Lite"	-	-	Safe