CVE-2020-20741 Auth bypass in n/a
Remote attackers can bypass authentication on Beckhoff CX9020 devices by exploiting improper connection handling in the CE Remote Display Tool.
- 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-2020-20741?
CVE-2020-20741 is a critical authentication bypass vulnerability in n/a, published on 23 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Incorrect Access Control in Beckhoff Automation GmbH & Co. KG CX9020 with firmware version CX9020_CB3011_WEC7_HPS_v602_TC31_B4016.6 allows remote attackers to bypass authentication via the "CE Remote Display Tool" as it does not close the incoming connection on the Windows CE side if the credentials are incorrect.
Which versions are affected by CVE-2020-20741?
It affects 1 product.
Products include Beckhoff Cx9020.
How do I fix CVE-2020-20741?
No fix has been published for CVE-2020-20741 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-2020-20741 being exploited?
There is no known exploitation of CVE-2020-20741 in the wild and no public exploit code.
Sources
Also known as GHSA-rprh-9x53-mwjp.