CVE-2021-20990 Fibaro Home Center Unauthenticated access to shutdown, reboot and reboot to recovery mode

High 7.5 Published 19 Apr 2021 Updated 16 Sep 2024

Unauthenticated attackers can trigger shutdowns or reboots on Fibaro Home Center devices via an exposed internal management service.

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-2021-20990?

CVE-2021-20990 is a high-severity missing authorization 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

In Fibaro Home Center 2 and Lite devices with firmware version 4.600 and older an internal management service is accessible on port 8000 and some API endpoints could be accessed without authentication to trigger a shutdown, a reboot or a reboot into recovery mode.

Weakness: CWE-306

Which versions are affected by CVE-2021-20990?

It affects 2 products.

Products include Fibaro Home Center 2 Firmware, Fibaro Home Center Lite Firmware.

How do I fix CVE-2021-20990?

No fix has been published for CVE-2021-20990 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2021-20990 being exploited?

There is no known exploitation of CVE-2021-20990 in the wild and no public exploit code.

Sources

Also known as GHSA-v9vj-vpg8-vqmj.