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Medium severity · published Apr 19, 2021
CVE-2021-20989
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
5.9
CVSS
2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.0% · higher than 81% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HC
Home Center 2 Firmware · Fibaro
through 4.600 · source: NVD
HC
Home Center Lite Firmware · Fibaro
through 4.600 · source: NVD
Affected product
HC
Home Center 2 Firmware
Fibaro
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-20989
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-20989
Exploit
http://packetstormsecurity.com/files/162243/Fibaro-Home-Center-MITM-Missing-Authentication-Code-Execution.html
Mailing List
http://seclists.org/fulldisclosure/2021/Apr/27
Exploit
https://www.iot-inspector.com/blog/advisory-fibaro-home-center/
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