List all active SSH sessions
AI agents call ssh_list_sessions to retrieve information from SSH MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and displays information about active SSH sessions without modifying, executing operations, or deleting any data. It is a purely informational query operation, making it a Read category tool. Severity is low because listing sessions poses minimal risk—an attacker gains visibility into existing connections but cannot directly manipulate systems or data through this action alone.
From the tool's definition Tool name is 'ssh_list_sessions' with description 'List all active SSH sessions'. The verb 'list' and the action of retrieving session information constitute a read-only query with no side effects.
Attacks that exploit this kind of access
List all active SSH sessions. It is categorised as a Read tool in the SSH MCP Server MCP Server, which means it retrieves data without modifying state.
Register the SSH MCP Server MCP server in PolicyLayer and add a rule for ssh_list_sessions: 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 SSH MCP Server. Nothing to install.
ssh_list_sessions 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 ssh_list_sessions 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 ssh_list_sessions. 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.
ssh_list_sessions is provided by the SSH MCP Server MCP server (kpanuragh/ssh-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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