Rootconf Mini 2025, Hyderabad

Replay attacks have traditionally been a concern for network deployments. Due to the complex network deployment in a modern telecom infrastructure, replay attacks can scale their impact and deny services to the subscribers. This talk opens up with a basic understanding of a distributed service-based architecture of a 5G network. It further briefs about the security issues arising in 5G networks - both Core and RAN, specific to replay.
The talk presents an open-source network fuzzer - 5GReplay- that can alter network packets online or offline. There will be a code walkthrough and a quick demonstration of a testbed setup.
The key takeaways from the talk include analyzing the impact of replay attacks over microservice architecture and understanding how a telecom network functions.
The session will be as general as possible, motivating most audience. However, Security Enthusiasts, Network & Systems experts, and Application Developers can take the most out of it.