A vulnerability exists in the Relion update package signature validation. A tampered update package could cause the IED to restart. After restart the device is back to normal operation. An attacker could exploit the vulnerability by first gaining access to the system with security privileges and attempt to update the IED with a malicious update package. Successful exploitation of this vulnerability will cause the IED to restart, causing a temporary Denial of Service.

A vulnerability exists in the Relion update package signature validation. A tampered update package could cause the IED to restart. After restart the device is back to normal operation. An attacker could exploit the vulnerability by first gaining access to the system with security privileges and attempt to update the IED with a malicious update package. Successful exploitation of this vulnerability will cause the IED to restart, causing a temporary Denial of Service.

Hitachi Energy is aware of a report from Nozomi Networks Labs, concerning the vulnerability CVE-2022-3864 affecting the Relion 670/650/SAM600-IO series versions listed below. Recommended actions for each affected version are listed in the “Recommended Immediate Actions” section of this document. An attacker who manages to get access with security privileges to the device, can start the update mechanism, supplying a malicious update package to the IED. When the system attempts to verify the tampered update package, a crash occurs resulting in the reboot of the device, after reboot the device is back in normal operation.

Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Hitachi Energy Relion ausnutzen, um einen Denial of Service Angriff durchzuführen.