Mitsubishi Electric Multiple Factory Automation Products (Update B)

Risk Summary

Successful exploitation of these vulnerabilities could create a denial-of-service condition or enable arbitrary code execution.

CVEs (2)

Remediations

• GOT2000 compatible HMI software: Mitsubishi Electric has released a patch for these issues and recommends users update affected products to Version 1.280S or later. Users should contact Mitsubishi Electric to obtain the patch.
• CC-Link IE TSN Industrial Managed Switch: Mitsubishi Electric has released fixed firmware for these issues and recommends users update affected products to Version 04 or later. Users should contact Mitsubishi Electric to obtain the fixed firmware version. To update affected CC-Link IE TSN Industrial Managed Switch products log into the product with the web interface and go to [System] → [System Management] → [Firmware Upgrade] from the Function menu after obtaining the updated firmware file.
• To update affected CC-Link IE TSN Industrial Managed Switch products, log into the product with the web interface and go to [System] → [System Management] → [Firmware Upgrade] from the Function menu after obtaining the updated firmware file.
• CC-Link IE TSN Industrial Managed Switch: Mitsubishi Electric recommends users to log into NZ2MHG-TSNT8F2 or NZ2MHG-TSNT4 with the web interface and change the username and password from their default setting in [Account Management] on the function menu. They are also recommended to set proper access permissions for different users.
• MELSEC iQ-R Series OPC UA Server Module: Mitsubishi Electric will release fixed software for this device in the near future. Mitsubishi Electric recommends users ensure the OPC UA Client is updated to the latest version and to use legitimate certificates on the OPC UA Client side.
• For instructions on how to check the product version and more information regarding contacting Mitsubishi Electric, refer to Mitsubishi Electric's security advisory.
• When internet access is required, use a virtual private network (VPN) to prevent unauthorized access.
• Use the products within a LAN and block access from untrusted networks and hosts.
• For GOT2000 compatible HMI software: Update the OPC UA server to the latest version available.
• For GOT2000 compatible HMI software: Install antivirus software on computers running the affected software.
• Restrict physical access to computers running the affected software.

Affected Vendors

Affected Products (3)

Affected Sectors

Critical Manufacturing