CVE-2019-6848 Denial of service in Modicon M580 CPU (BMEx58*) and Modicon M580 communication module (BMENOC0311, BMENOC0321) (see notification for version info)
Attackers can cause a Denial of Service on Modicon M580 PLCs by sending specific data to the REST API, impacting industrial control operations.
- 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-2019-6848?
CVE-2019-6848 is a high-severity denial of service vulnerability in Modicon M580 CPU (BMEx58*) and Modicon M580 communication module (BMENOC0311, BMENOC0321) (see notification for version info), published on 29 Oct 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A CWE-755: Improper Handling of Exceptional Conditions vulnerability exists in Modicon M580 CPU (BMEx58*) and Modicon M580 communication module (BMENOC0311, BMENOC0321) (see notification for version info), which could cause a Denial of Service attack on the PLC when sending specific data on the REST API of the controller/communication module.
Weakness: CWE-755
Which versions are affected by CVE-2019-6848?
It affects 3 products.
Products include Schneider-Electric Modicon Bmenoc 0311 Firmware, Schneider-Electric Modicon Bmenoc 0321 Firmware, Schneider-Electric Modicon M580 Firmware.
How do I fix CVE-2019-6848?
No fix has been published for CVE-2019-6848 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2019-6848 being exploited?
There is no known exploitation of CVE-2019-6848 in the wild and no public exploit code.
Other vulnerabilities in Modicon M580 CPU (BMEx58*) and Modicon M580 communication module (BMENOC0311, BMENOC0321) (see notification for version info)
Sources
Also known as GHSA-gj96-2265-wv5x.