Threat Modeling: Why are MCP Servers an attack surface?
Threat Modeling: Why are MCP Servers an attack surface?
MCP Servers aren’t passive APIs, they execute live actions on systems, tools, and third-party APIs. This makes them high-value targets. In most scenarios, a misconfigured MCP Server equals a remote shell for threat actors. Reasons they’re risky:- Execute real commands (e.g., nmap, curl, python)
- Bridge to sensitive tools (SIEM, ticketing, internal DBs)
- Accept user input, perfect for command injection
- Often deployed rapidly in test or research environments
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