Schneider Electric Easergy P5 and P3

Risk Summary

Successful exploitation of these vulnerabilities may disclose device credentials, cause a denial-of-service condition, device reboot, or allow an attacker to gain full control of the relay. This could result in loss of protection to your electrical network.

CVEs (4)

Remediations

• Schneider Electric recommends users using Easergy P5 upgrade to v01.402.101 and users using Easergy P3 upgrade to version 30.205. These firmware upgrades include a fix for the identified vulnerabilities and are available upon request from Schneider Electric's Customer Care Center.
• Disable the GOOSE service of the product to reduce the risk of exposure. If GOOSE is needed for the application, use it only in a secure local area network.
• For more information see Schneider Electric's security notifications: SEVD-2022-011-03, SEVD-2022-011-04
• Schneider Electric recommends users use appropriate patching methodologies when applying these patches to their systems. Schneider Electric recommends the use of backups and an evaluation of the impact of these patches in a test and development environment or on an offline infrastructure. Contact Schneider Electric's Customer Care Center for assistance removing a patch.
• Locate control and safety system networks and remote devices behind firewalls and isolate them from the business network.
• Install physical controls so no unauthorized personnel can access 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 a network intended to for the devices.
• 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 VPNs may have vulnerabilities and should be updated to the most current version available. Also, understand VPNs are only as secure as the connected devices.
• For CVE-2022-22723 and CVE-2022-22725 only, if users choose not to apply the remediation provided above, they should immediately apply the following mitigation to reduce the risk of exploit:

Affected Vendors

Affected Products (2)

Affected Sectors

Commercial Facilities, Energy