Horizon Alert
Summary of the vulnerability and why it matters
Omron CS and CJ series programmable logic controllers (PLCs) contain a vulnerability related to external access controls. This flaw could permit unauthorized actions on the affected systems. The potential business impact includes disruptions to operational technology (OT) environments, data integrity concerns, and potential interference with industrial processes.
- Vulnerable Omron PLCs
- Unrestricted external access
- Operational disruptions
Attack Path
How an attacker could exploit the issue
This vulnerability allows an attacker to bypass security features in Omron PLCs. An attacker could exploit this to gain unauthorized access and potentially modify critical operational logic. This could disrupt industrial processes and lead to significant business risk.
- Exposed devices accessible via network.
- Attacker gains unauthorized access.
- Attacker triggers lock vulnerability.
- Attacker controls device logic.
Live Threat
Current exploitation, exposure, and threat context
This vulnerability affects Omron's CS and CJ series programmable logic controllers (PLCs). It allows for unrestricted external access to the device's lock mechanism. Successful exploitation could lead to unauthorized modification of PLC configurations, potentially disrupting industrial operations.
- Attackers with basic skills could exploit it.
- No specific access is required for exploitation.
- Significant business risk and operational disruption.
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
This vulnerability impacts Omron programmable logic controllers (PLCs) used in industrial environments. It allows for unrestricted external access, posing a significant risk to operational control and data integrity. Organizations utilizing these devices should take immediate steps to identify and mitigate potential exposure.
- Find affected assets.
- Reduce exposure or isolate risk.
- Fix, verify, and monitor.
