UpdateSingleUseCredentials · Veeam VBR v13 MCP Server MCP

WHAT IT DOES

What UpdateSingleUseCredentials does on Veeam VBR v13 MCP Server

AI agents use UpdateSingleUseCredentials to create or update resources in Veeam VBR v13 MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Veeam VBR v13 MCP Server environment.

WHY IT NEEDS A POLICY

Why UpdateSingleUseCredentials needs a policy

This tool modifies credential settings on a managed server, which is a reversible configuration change (Write category). The severity is high because changing authentication credentials could impact backup operations, security posture, and access control across the Veeam infrastructure. A misconfiguration could lock out legitimate operations or enable unauthorized access.

From the tool's definition Tool name 'UpdateSingleUseCredentials' and description 'Change a managed server to use single-use credentials' indicate modification of server credential configuration.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

UpdateSingleUseCredentials Rate-limited

UpdateSingleUseCredentials 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "UpdateSingleUseCredentials": {
      "limits": [
        {
          "counter": "updatesingleusecredentials_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Veeam VBR v13 MCP Server, so you can run agents against it safely.

FAQ

Questions about UpdateSingleUseCredentials

What does the UpdateSingleUseCredentials tool do? +

Change a managed server to use single-use credentials. It is categorised as a Write tool in the Veeam VBR v13 MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on UpdateSingleUseCredentials? +

Register the Veeam VBR v13 MCP Server MCP server in PolicyLayer and add a rule for UpdateSingleUseCredentials: 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 Veeam VBR v13 MCP Server. Nothing to install.

What risk level is UpdateSingleUseCredentials? +

UpdateSingleUseCredentials is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit UpdateSingleUseCredentials? +

Yes. Add a rate_limit block to the UpdateSingleUseCredentials 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.

How do I block UpdateSingleUseCredentials completely? +

Set action: deny in the PolicyLayer policy for UpdateSingleUseCredentials. 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.

What MCP server provides UpdateSingleUseCredentials? +

UpdateSingleUseCredentials is provided by the Veeam VBR v13 MCP Server MCP server (kid-boy/veeam-mcp-13). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.