Detect Web Application Firewalls (WAF) using wafw00f. WARNING: Only scan authorized sites.
AI agents invoke wafw00f_scan to trigger actions in Kali Linux Security Tools MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.
This tool executes the wafw00f penetration testing tool against external targets to detect WAF presence. It triggers active network reconnaissance against remote systems, making it an Execute-category tool. The severity is high because it probes external infrastructure and could be misused against unauthorized targets; the explicit warning confirms the potential for misuse.
From the tool's definition 'Detect Web Application Firewalls (WAF) using wafw00f' and 'WARNING: Only scan authorized sites'
Attacks that exploit this kind of access
Detect Web Application Firewalls (WAF) using wafw00f. WARNING: Only scan authorized sites. It is categorised as a Execute tool in the Kali Linux Security Tools MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Kali Linux Security Tools MCP Server MCP server in PolicyLayer and add a rule for wafw00f_scan: 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 Kali Linux Security Tools MCP Server. Nothing to install.
wafw00f_scan is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the wafw00f_scan 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 wafw00f_scan. 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.
wafw00f_scan is provided by the Kali Linux Security Tools MCP Server MCP server (jesseeikeland/kali-linux-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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