887 B

Raw Blame History

Message Protocols

Where to begin

Communication Sniffing on unsecured connections
Source code analysis
Documentation

Message Queueing Telemetry Transport (MQTT)

Queues on a Broker are used through a publish/subscribe model as an asynchronous connection in the following way

Publisher sends data to a queue of the broker
Broker holds the message in Topics (queues) for period of time
Subscriber may connect and get the message from the Broker via Topics

Tools & Usage

nmap to list the topics
Use MQTT-Explorer for intel
mosquitto_sub -h <hostname> -t <topic> to subscribe to topics or query the device ID. Listen to all topics via

mosquitto_sub -h <hostname> -t '#'

mosquitto_pub -h to publish to topics through mentioning the device ID. Can be send as raw, xml or json. -f for file sending
- Base64 encoding