Service information is not encrypted when transmitted as BACnet packets
over the wire, and can be sniffed, intercepted, and modified by an
attacker. Valuable information such as the File Start Position and File
Data can be sniffed from network traffic using Wireshark's BACnet
dissector filter. The proprietary format used by WebCTRL to receive
updates from the PLC can also be sniffed and reverse engineered.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
None
No disruption
CVSS Vector v3.1