Schneider Electric GUIcon

Risk Summary

Successful exploitation of these vulnerabilities may allow an attacker to execute arbitrary code on the host PC, leading to sensitive information disclosure or unintended user actions.

CVEs (3)

Remediations

• The only known method for an attacker to exploit these vulnerabilities is to create a malicious GUIcon *.gd1 configuration file and then trick a user into opening it with the GUIcon software. The mitigation for these vulnerabilities is to ensure any GUIcon *.gd1 file loaded into the tool is from a trusted source.
• For more information about these issues, please refer to the original Schneider Electric publication SEVD-2021-313-07
• Locate control and safety system networks and remote devices behind firewalls and isolate them from the business network.
• Install physical controls to prevent unauthorized personnel from accessing industrial control and safety systems, components, peripheral equipment, and networks.
• Place all controllers in locked cabinets and never leave them in the “Program” mode.
• Never connect programming software to any network other than the network intended for that device.
• Scan all methods of mobile data exchange with the isolated network, such as CDs, USB drives, etc., before use in the terminals or any node connected to these networks.
• Never allow mobile devices that have connected to any other network besides the intended network to connect to the safety or control networks without proper sanitation.
• Minimize network exposure for all control system devices and systems and ensure they are not accessible from the Internet.
• When remote access is required, use secure methods, such as Virtual Private Networks (VPNs). Recognize that VPNs may have vulnerabilities and should be updated to the most current version available. Also, understand that VPNs are only as secure as the connected devices.
• For more information refer to the Schneider Electric Recommended Cybersecurity Best Practices document.

Affected Vendors

Affected Products (1)

Affected Sectors

Critical Manufacturing