E3 Site Supervisor Control (firmware version < 2.31F01) has a floor plan feature that allows for an unauthenticated attacker to upload floor plan files. By uploading a specially crafted floor plan file, an attacker can access any file from the E3 file system.
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.