UpdateUserRoles · Veeam VBR v13 MCP Server MCP

WHAT IT DOES

What UpdateUserRoles does on Veeam VBR v13 MCP Server

AI agents use UpdateUserRoles 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 UpdateUserRoles needs a policy

This tool modifies authentication and authorization metadata by editing role assignments. While reversible (making it Write rather than Destructive), it has high severity because role changes can grant or revoke access to critical backup/recovery functions across the Veeam infrastructure, affecting security posture and operational control.

From the tool's definition Tool name 'UpdateUserRoles' and description 'Edit roles assigned to a user or group' indicate modification of access control configuration. The verb 'Edit' explicitly signals a reversible write operation that changes user/group permissions.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

UpdateUserRoles Rate-limited

UpdateUserRoles 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": {
    "UpdateUserRoles": {
      "limits": [
        {
          "counter": "updateuserroles_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 UpdateUserRoles

What does the UpdateUserRoles tool do? +

Edit roles assigned to a user or group. 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 UpdateUserRoles? +

Register the Veeam VBR v13 MCP Server MCP server in PolicyLayer and add a rule for UpdateUserRoles: 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 UpdateUserRoles? +

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

Can I rate-limit UpdateUserRoles? +

Yes. Add a rate_limit block to the UpdateUserRoles 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 UpdateUserRoles completely? +

Set action: deny in the PolicyLayer policy for UpdateUserRoles. 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 UpdateUserRoles? +

UpdateUserRoles 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.