Sensitive Information Disclosure Through Side-Channel Information Leakage in Agents
·3 mins
Level 1: The Context Gateway # This challenge was about finding a hidden config value that the agent leaked through its own diagnostic and logging tools. Instead of guessing or brute forcing the value, I used the monitoring tools against the agent to get it to print the exact internal setting needed to unlock the flag.
The exploit and Result : Side-Channel Information Leakage # Step 1: Reconnaissance of the exposed tools
Level 1 exposed three tools: view_system_logs, discover_services (with scan modes network, process, verbose, and custom), and multi_tool_use.parallel.
I started by asking the model what tools it had access to and how they worked: