AI agents call analyze_pcap to retrieve information from Wireshark MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
PCAP analysis is fundamentally a read operation—it retrieves and examines network packet data without modifying or deleting it. However, severity is elevated to 'medium' because analyzed packet data may contain sensitive information (credentials, API keys, private communications) that an AI agent could extract or leak, creating privacy and security risks even though the tool itself performs no destructive actions.
From the tool's definition Tool name 'analyze_pcap' combined with server context indicating 'network analysis capabilities' and sibling tool 'capture_live_traffic' suggests this tool reads and analyzes packet capture files. The empty description weakens confidence slightly.
Documented attack patterns abuse exactly the kind of access analyze_pcap gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Wireshark MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for analyze_pcap:
{
"version": "1",
"default": "deny",
"tools": {
"analyze_pcap": {}
}
}analyze_pcap is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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analyze_pcap. It is categorised as a Read tool in the Wireshark MCP MCP Server, which means it retrieves data without modifying state.
Register the Wireshark MCP server in PolicyLayer and add a rule for analyze_pcap: 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 Wireshark MCP. Nothing to install.
analyze_pcap 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 analyze_pcap 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 analyze_pcap. 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.
analyze_pcap is provided by the Wireshark MCP server (sarthaksiddha/wireshark-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Wireshark MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
3 Wireshark MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.