CVE-2021-20989 Fibaro Home Center Insufficient remote access server authorization
Attackers can bypass remote access security via DNS spoofing to intercept SSH connections and access the web management interface, requiring valid credentials for further actions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-20989?
CVE-2021-20989 is a medium-severity vulnerability in Fibaro Home Center, published on 19 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-295
Which versions are affected by CVE-2021-20989?
It affects 2 products.
Products include Fibaro Home Center 2 Firmware, Fibaro Home Center Lite Firmware.
How do I fix CVE-2021-20989?
No fix has been published for CVE-2021-20989 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-20989 being exploited?
There is no known exploitation of CVE-2021-20989 in the wild and no public exploit code.
Other vulnerabilities in Fibaro Home Center
Sources
Also known as GHSA-j6x8-v233-x3mm.