CVE-2019-3935 Missing authorization in Crestron AirMedia

Critical 9.1 Published 30 Apr 2019 Updated 4 Aug 2024

Unauthenticated attackers can act as moderators to control or disrupt active slideshows on Crestron AirMedia devices.

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-2019-3935?

CVE-2019-3935 is a critical missing authorization vulnerability in Crestron AirMedia, published on 30 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Crestron AM-100 with firmware 1.6.0.2 and AM-101 with firmware 2.7.0.2 allows anyone to act as a moderator to a slide show via crafted HTTP POST requests to conference.cgi. A remote, unauthenticated attacker can use this vulnerability to start, stop, and disconnect active slideshows.

Weakness: CWE-284

Which versions are affected by CVE-2019-3935?

It affects 2 products.

Products include Crestron Am-100 Firmware, Crestron Am-101 Firmware.

How do I fix CVE-2019-3935?

No fix has been published for CVE-2019-3935 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-2019-3935 being exploited?

There is no known exploitation of CVE-2019-3935 in the wild and no public exploit code.

Sources

Also known as GHSA-6486-99c6-494w.