alcinnz
alcinnz boosted

Which brings me to part two, MeshMarauder.

An open source tool demonstrating proof-of-concept exploits against the DEFCON 33 Meshtastic firmware.

MeshMarauder will demostrate:

- Tracking user activity on any mesh regardless of encryption usage
- Hijack all meshtastic user profile metadata
- Change any users public key
- Send messages as any user in channel chats that appear authentic
- MITM direct messages

https://meshmarauder.net

#defcon #meshtastic #meshmarauder #cybersecurity

The scale of meshtastics avoidance of building security into the design is pretty epic.

It allows for the formation of an entire mesh just for MITMing it.

This ONE liner here in the PKI attack means that once a node gets poisoned the key we created is based on the MAC so -anyone- who knows your MAC can read your MITM'd traffic.

When attackers run mesh marauder against the DEFCON 33 firmware they are all working together. Anyone in range can read the MITM'd DMs.

https://github.com/datapartyjs/meshmarauder/blob/channel-chat/src/lorapipe-raw-packet.mjs#L191-L193

So when it's this easy to get a MITM going things like making posts in public chats as anyone you want feels kinda low key.

But I do hope that extended warranty works out, everyone seems pretty concerned about them.

#defcon #meshtastic #lora #cybersecurity

Which brings me to part two, MeshMarauder.

An open source tool demonstrating proof-of-concept exploits against the DEFCON 33 Meshtastic firmware.

MeshMarauder will demostrate:

- Tracking user activity on any mesh regardless of encryption usage
- Hijack all meshtastic user profile metadata
- Change any users public key
- Send messages as any user in channel chats that appear authentic
- MITM direct messages

https://meshmarauder.net

#defcon #meshtastic #meshmarauder #cybersecurity

¡Abbie!
¡Abbie! boosted