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Protocol Information
BACnet is a communications protocol for Building Automation and Control (BAC) networks that leverages the ASHRAE, ANSI, and ISO 16484-5 standard protocol. It facilitates communication among building automation and control systems, enabling applications such as HVAC control, lighting control, access control, and fire detection systems to exchange information. BACnet ensures interoperability and allows computerized building automation devices to communicate, regardless of the specific services they provide.
Default port: 47808
PORT STATE SERVICE
47808/udp open BACNet -- Building Automation and Control NetworksEnumerate
Enumeration
Manual
pip3 install BAC0
pip3 install netifaces
import BAC0
import time
myIP = '<Your IP>/<MASK>' #You need to be on the same subnet as the bacnet device. Example: '192.168.1.4/24'
bacnet = BAC0.connect(ip=myIP)
bacnet.whois() #Broadcast request of bacnet devices
time.sleep(5) #Wait for devices to respond
for i, (deviceId, companyId, devIp, numDeviceId) in enumerate(bacnet.devices):
print(f"-------- Device #{numDeviceId} --------")
print(f"Device: {deviceId}")
print(f"IP: {devIp}")
print(f"Company: {companyId}")
readDevice = bacnet.readMultiple(f"{devIp} device {numDeviceId} all")
print(f"Model Name: {readDevice[11]}")
print(f"Version: {readDevice[2]}")
# print(readDevice) #List all available info about the device
Automatic
nmap --script bacnet-info --script-args full=yes -sU -n -sV -p 47808 <IP>
This script does not attempt to join a BACnet network as a foreign device, it simply sends BACnet requests directly to an IP addressable device.
Shodan
port:47808 instance"Instance ID" "Vendor Name"
Learn AWS hacking from zero to hero with htARTE (HackTricks AWS Red Team Expert)!
Other ways to support HackTricks:
- If you want to see your company advertised in HackTricks or download HackTricks in PDF Check the SUBSCRIPTION PLANS!
- Get the official PEASS & HackTricks swag
- Discover The PEASS Family, our collection of exclusive NFTs
- Join the 💬 Discord group or the telegram group or follow us on Twitter 🐦 @carlospolopm.
- Share your hacking tricks by submitting PRs to the HackTricks and HackTricks Cloud github repos.