Omron NJ/NX-series Machine Automation Controllers

Risk Summary

Successful exploitation of this vulnerability could allow an attacker to obtain unauthorized access to the device and cause the device to be in an out of service state or execute a malicious program on the device.

CVEs (1)

Remediations

• Omron recommends updating versions of NJ/NX-series machine automation controllers to address this vulnerability. These updates are available to users by contacting their Omron or distributors:
• NX7-series Machine Automation Controller (All Models): Versions 1.29 or higher
• NX1-series Machine Automation Controller (All Models): Versions 1.50 or higher
• NJ-series Machine Automation Controller (NJ501-1300, NJ501-1400, NJ501-1500): Versions 1.49 or higher
• NJ-series Machine Automation Controller (All other Models): Versions 1.50 or higher
• Enable antivirus protection:
• Protect any PC with access to the control system against malware by ensuring the installation and maintenance of up-to-date commercial grade antivirus software protection.
• Implement security measures to prevent unauthorized access:
• Minimize connection of control systems and equipment to open networks preventing untrusted devices from accessing them.
• Implement firewalls by shutting down unused communications ports, limiting communications between hosts, and isolate affected systems from the IT network.
• Use a virtual private network (VPN) for remote access to control systems and equipment.
• Use strong passwords and change passwords frequently.
• Install physical controls that only permit authorized personnel access to control systems and equipment.
• Scan USB drives or similar devices for viruses and malware to ensure the devices are safe before connecting them to systems and devices.
• When possible, enforce multifactor authentication (MFA) on all devices with remote access to control systems and equipment.
• Protect data input and output:
• Perform process validation, such as backup validation or range checks, to cope with unintentional modification of input/output data to control systems and devices.
• Use data recovery:
• Conduct periodical data backups and maintenance to prepare for potential data loss.
• For more information see Omron's advisory: OMSR-2022-002

Affected Vendors

Affected Products (3)

Affected Sectors

Critical Manufacturing