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ICSA-23-306-06  ·  Published 2023-11-02  ·  View on CISA ICS-CERT ↗

Schneider Electric SpaceLogic C-Bus Toolkit

CVSS 9.8 CRITICAL

Risk Summary

Successful exploitation of these vulnerabilities could allow an attacker to perform remote code execution, which could result in tampering of the SpaceLogic C-Bus home automation system.

Remediations

  • Schneider Electric has provided a fix to these vulnerabilities and recommends updating the software to v1.16.4. After installation, it is recommended to reboot the system and verify the version number reflects the new version.
  • If users choose not to apply the remediation provided , they should immediately apply the following mitigation to reduce the risk of exploit: Block TCP Port 20023 to SpaceLogic C-Bus Toolkit by using the rules in the PC firewall.
  • By doing this, the vulnerable commands could not then be used to compromise the PC by an external entity as the connection and ultimately the command will not be accepted by SpaceLogic C-Bus Toolkit.
  • For more information, refer to Schneider Electric's Security Bulletin SEVD-2023-283-1
  • Schneider Electric strongly recommends the following industry cybersecurity best practices.
  • Locate control and safety system networks and remote devices behind firewalls andisolate them from the business network.
  • Install physical controls so no unauthorized personnel can access your 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 that 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.

Affected Vendors

Schneider Electric

Affected Products (1)

Schneider Electric · SpaceLogic C-Bus Toolkit <=1.16.3

Affected Sectors

Commercial Facilities

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