CVE-2020-16839 Auth bypass in n/a
An unauthenticated attacker can change the device password via a WebSocket request, leading to full account takeover on Crestron DM-NVX 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-2020-16839?
CVE-2020-16839 is a high-severity authentication bypass vulnerability in n/a, published on 27 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
On Crestron DM-NVX-DIR, DM-NVX-DIR80, and DM-NVX-ENT devices before the DM-XIO/1-0-3-802 patch, the password can be changed by sending an unauthenticated WebSocket request.
Weakness: CWE-287
Which versions are affected by CVE-2020-16839?
It affects 3 products.
Products include Crestron Dm-Nvx-Dir-160 Firmware, Crestron Dm-Nvx-Dir-80 Firmware, Crestron Dm-Nvx-Dir-Ent Firmware.
How do I fix CVE-2020-16839?
No fix has been published for CVE-2020-16839 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2020-16839 being exploited?
There is no known exploitation of CVE-2020-16839 in the wild and no public exploit code.
Sources
Also known as GHSA-899f-m5f4-9vc7.