AI agents call find_ioctl_handlers to retrieve information from Binary MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Based on the tool name, 'find_ioctl_handlers' suggests locating or identifying IOCTL (I/O Control) handler functions within a binary, which is a read/analysis operation. In the context of binary analysis tools like Ghidra and WinDbg, this likely involves static or dynamic inspection to find kernel or driver IOCTL dispatch routines without modifying anything.
From the tool's definition Tool name: find_ioctl_handlers; description is empty. Sibling tools suggest binary analysis context (Ghidra, WinDbg, ILSpyCmd).
Documented attack patterns abuse exactly the kind of access find_ioctl_handlers gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Binary MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for find_ioctl_handlers:
{
"version": "1",
"default": "deny",
"tools": {
"find_ioctl_handlers": {}
}
}find_ioctl_handlers is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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find_ioctl_handlers. It is categorised as a Read tool in the Binary MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Binary MCP Server MCP server in PolicyLayer and add a rule for find_ioctl_handlers: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Binary MCP Server. Nothing to install.
find_ioctl_handlers is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the find_ioctl_handlers rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for find_ioctl_handlers. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
find_ioctl_handlers is provided by the Binary MCP Server MCP server (sarks0/binary-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Binary MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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59 Binary MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.