Looping Surveillance Cameras through Live Editing
Eric Van Albert and Zack Banks demonstrate a real-world physical and network attack to tap Ethernet camera cables and inject seamless video loops in real time.
Summary
Physical Network Hijacking and Splicing
Demonstrating attacks previously seen only in Hollywood cinema, Eric Van Albert and Zack Banks present custom hardware and software capable of hijacking live wired network communications.
Constructing the Non-Intrusive Ethernet Tap
The authors detail the design of a custom inline hardware tap that splices into live Category 5/6 Ethernet cabling without interrupting physical link connectivity or dropping packets.
Real-Time Video Stream Manipulation
Once passive reconnaissance maps network video streams, the device transitions to an active inline bridge, rewriting IP and RTP packet payloads to loop prerecorded footage while preserving valid timestamps.
Defending Physical Network Infrastructure
The speakers discuss the broader implications for enterprise physical security, emphasizing the necessity of end-to-end media encryption (SRTP/MACsec) and physical cable raceway protections.
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