Register a Microsoft Entra ID application using device code flow.
AI agents use FinishAppRegistrationByDeviceCode 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.
This tool creates/registers a new Microsoft Entra ID (Azure AD) application, which is a Write operation. The severity is high because registering an application in an identity provider can grant significant access rights and permissions to cloud resources, potentially enabling lateral movement or privilege escalation if misused by an AI agent.
From the tool's definition Register a Microsoft Entra ID application using device code flow
Attacks that exploit this kind of access
Register a Microsoft Entra ID application using device code flow. 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.
Register the Veeam VBR v13 MCP Server MCP server in PolicyLayer and add a rule for FinishAppRegistrationByDeviceCode: 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.
FinishAppRegistrationByDeviceCode 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 FinishAppRegistrationByDeviceCode 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 FinishAppRegistrationByDeviceCode. 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.
FinishAppRegistrationByDeviceCode 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.
FinishAppRegistrationByDeviceCode is one line of Veeam VBR v13 MCP Server's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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