E3 Site Supervisor Control (firmware version < 2.31F01) MGW contains an API call that lacks input validation. An attacker can use this command to continuously crash the application services.
Upgrade firmware of affected E3 Supervisory Controls to a version > 2.30F1.
Configurations
Workarounds
Restrict access to the E3 Supervisory Controls network interface (ETH 0) by use of restricted VLAN or subnet and / or network firewall. Ensure the restricted VLAN or subnet is never accessible from untrusted networks.