CVE-2024-6077 Denial of service in 1756-EN4
Attackers can cause denial of service on Rockwell Automation PLCs by sending crafted CIP packets, requiring a factory reset to recover.
- 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-2024-6077?
CVE-2024-6077 is a high-severity denial of service vulnerability in Rockwell Automation 1756-EN4, published on 12 Sep 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A denial-of-service vulnerability exists in the Rockwell Automation affected products when specially crafted packets are sent to the CIP Security Object. If exploited the device will become unavailable and require a factory reset to recover.
Weakness: CWE-20
Which versions are affected by CVE-2024-6077?
It affects 7 products.
Products include Rockwellautomation 1756-En4 Firmware, Rockwellautomation Compact Guardlogix 5380 Sil 2 Firmware, Rockwellautomation Compact Guardlogix 5380 Sil 3 Firmware, Rockwellautomation Compactlogix 5380 Firmware, Rockwellautomation Compactlogix 5480 Firmware, Rockwellautomation Controllogix 5580 Firmware and 1 more.
How do I fix CVE-2024-6077?
No fix has been published for CVE-2024-6077 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-2024-6077 being exploited?
There is no known exploitation of CVE-2024-6077 in the wild and no public exploit code.
Other vulnerabilities in Rockwell Automation 1756-EN4
Sources
Also known as GHSA-vpx9-6rc9-v679.