CVE-2023-3596 Rockwell Automation Allen-Bradley ControlLogix Communication Modules vulnerable to Denial of Service
A malicious user can cause a denial of service on Rockwell Automation ControlLogix communication modules by sending crafted CIP messages.
- 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-2023-3596?
CVE-2023-3596 is a high-severity denial of service vulnerability in Rockwell Automation 1756-EN4TR Series A, published on 12 Jul 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Where this vulnerability exists in the Rockwell Automation 1756-EN4* Ethernet/IP communication products, it could allow a malicious user to cause a denial of service by asserting the target system through maliciously crafted CIP messages.
Weakness: CWE-787
Which versions are affected by CVE-2023-3596?
It affects 3 products.
Products include Rockwellautomation 1756-En4tr Firmware, Rockwellautomation 1756-En4trk Firmware, Rockwellautomation 1756-En4trxt Firmware.
How do I fix CVE-2023-3596?
No fix has been published for CVE-2023-3596 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-2023-3596 being exploited?
There is no known exploitation of CVE-2023-3596 in the wild and no public exploit code.
Other vulnerabilities in Rockwell Automation 1756-EN4TR Series A
Sources
Also known as GHSA-xvq9-c88q-jf5x.