websterghoul/arkx-ctf-writeup
ARKX CTF writeup — all 27 AI agent & MCP security challenges solved: prompt injection, MCP tool exposure, SSRF, YAML deserialization, AES-ECB forgery, aarch64 ret2stack.
🎯 Vulnerability: Server-Side Request Forgery (SSRF)
💡 Defense Fix: Enforce URL whitelisting, block private IP ranges (10.0.0.0/8, 169.254.169.254), and mandate AWS IMDSv2 headers.