authorize_ssh_key
Authorize an SSH key for login
What authorize_ssh_key does on cPanel MCP Server
AI agents use authorize_ssh_key to create or update resources in cPanel MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your cPanel MCP Server environment.
Why authorize_ssh_key is rated Medium
This tool modifies the host's SSH authentication configuration by authorizing new keys for login, enabling additional access pathways. While reversible (keys can be deauthorized), this is a privileged write operation that grants or extends system access. It is not Destructive since keys can be removed; it is not Execute since it doesn't run commands or trigger operations.
From the tool's definition Tool name 'authorize_ssh_key' combined with description 'Authorize an SSH key for login' indicates the tool creates or adds an SSH public key to authorized_keys or equivalent, modifying authentication credentials and access configuration.
Attacks that exploit this kind of access
The rule that runs authorize_ssh_key safely
PolicyLayer is an MCP gateway: it sits between your AI agents and cPanel MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For authorize_ssh_key, this is the rule to start with:
authorize_ssh_key stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect cPanel MCP Server, apply this rule, and every authorize_ssh_key call is checked against it from then on.
Questions about authorize_ssh_key
Authorize an SSH key for login. It is categorised as a Write tool in the cPanel MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the cPanel MCP Server MCP server in PolicyLayer and add a rule for authorize_ssh_key: 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 cPanel MCP Server. Nothing to install.
authorize_ssh_key is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the authorize_ssh_key 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 authorize_ssh_key. 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.
authorize_ssh_key is provided by the cPanel MCP Server MCP server (0xhayd3n/cpanel-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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