Checking Your Access on Azure Subscription

Understanding Azure Subscription Access and Permissions

Checking your access on an Azure subscription is a crucial task for cloud administrators, developers, and security teams. Azure provides a robust access control system that ensures users, groups, and services have only the permissions they need. Verifying access helps prevent deployment errors, security risks, and compliance issues.

This guide will explain how to check Azure subscription access using the Azure Portal, Azure CLI, and PowerShell, making it suitable for beginners and intermediate learners.

What Is Azure Subscription Access?

An Azure subscription acts as a logical container for Azure resources such as virtual machines, storage accounts, databases, and more. Subscription access determines who can view, manage, or modify these resources.

Key Concepts Related to Azure Subscription Access

• Azure Role-Based Access Control (RBAC)
• Subscription permissions
• Scope levels: management group, subscription, resource group, resource
• Built-in roles and custom roles

Why Checking Your Access on Azure Subscription Is Important

Verifying Azure subscription access ensures proper permissions for operational efficiency and security. Without correct access, users may face deployment failures or restricted resource management.

Use Cases

• A DevOps engineer verifying deployment permissions
• A security auditor reviewing subscription access
• An administrator troubleshooting "Access Denied" errors
• A developer checking read-only access to Azure resources

Azure Role-Based Access Control (RBAC) Explained

Azure RBAC is the system that controls authorization to Azure resources. Roles can be assigned at different scopes to manage access efficiently.

Common Azure Built-in Roles

How to Check Your Access on Azure Subscription Using Azure Portal

The Azure Portal provides a visual interface for verifying subscription access easily.

Step-by-Step Instructions

• Sign in to the Azure Portal.
• Navigate to Subscriptions.
• Select the target Azure subscription.
• Click Access control (IAM).
• Click View my access to see your permissions.

Check Azure Subscription Access Using Azure CLI

Azure CLI is ideal for programmatic access checks and automation tasks.

Azure CLI Command Example

📄
az role assignment list --assignee <user-object-id> --subscription <subscription-id>

Explanation

This command lists all role assignments for a specific user on a given subscription, helping identify Owner, Contributor, or Reader roles.

Check Azure Subscription Access Using PowerShell

PowerShell is widely used for Windows-based administrators to manage Azure resources efficiently.

PowerShell Command Example

📄
Get-AzRoleAssignment -ObjectId <user-object-id> -Scope /subscriptions/<subscription-id>

Explanation

This command retrieves Azure RBAC role assignments at the subscription level, making it easy to audit access.

Understanding Access Scope in Azure

Permissions in Azure are hierarchical, meaning roles can be inherited from higher scopes.

Scope Levels

• Management Group
• Subscription
• Resource Group
• Individual Resource

Azure Role-Based Access Control (RBAC)

Azure Role-Based Access Control (RBAC) is a system that manages who has access to Azure resources, what they can do with those resources, and what areas they have access to. RBAC is crucial for maintaining security, operational efficiency, and compliance in your Azure environment.

Why Azure RBAC Is Important

• Ensures users only have the permissions they need (principle of least privilege)
• Prevents accidental or malicious changes to critical resources
• Allows administrators to delegate access safely
• Supports compliance and audit requirements

Core Concepts of Azure RBAC

• Role: Defines a set of permissions (e.g., Reader, Contributor, Owner)
• Scope: Determines where the role applies (Management Group, Subscription, Resource Group, Resource)
• Role Assignment: Associates a security principal (user, group, service principal) with a role at a specific scope
• Security Principal: The identity requesting access to Azure resources

Built-in Azure Roles

Azure provides several built-in roles suitable for most scenarios:

Custom Roles

In addition to built-in roles, Azure allows you to create custom roles for fine-grained control. Custom roles are defined using JSON and allow you to specify exactly which actions are allowed or denied.

Sample Custom Role JSON

📄
{
  "Name": "Storage Blob Reader",
  "IsCustom": true,
  "Description": "Can read Azure storage blobs",
  "Actions": [
    "Microsoft.Storage/storageAccounts/blobServices/containers/blobs/read"
  ],
  "NotActions": [],
  "AssignableScopes": [
    "/subscriptions/{subscription-id}"
  ]
}

How Azure RBAC Works

When a user requests access to a resource, Azure checks the RBAC system for role assignments at the following scopes in order:

1. Resource
2. Resource Group
3. Subscription
4. Management Group

If the user has a matching role assignment at any level, the permissions are granted. This hierarchical approach makes RBAC flexible and powerful.

Practical Use Case

Imagine you have a subscription with multiple resource groups: one for development, one for testing, and one for production. You want developers to deploy only to the development group:

• Create a custom role with deployment permissions for the development group.
• Assign developers to that role at the development resource group scope.
• They can deploy to development resources but have no access to testing or production.

Checking Your RBAC Role

To verify your role assignments in Azure, you can use:

• Azure Portal: Access Control (IAM) > View my access
• Azure CLI:

📄
az role assignment list --assignee <user-object-id> --subscription <subscription-id>

📄
Get-AzRoleAssignment -ObjectId <user-object-id> -Scope /subscriptions/<subscription-id>

RBAC

• Always follow the principle of least privilege
• Use built-in roles whenever possible
• Group users in Azure AD groups for easier management
• Regularly audit role assignments
• Use custom roles only when built-in roles are insufficient

Always verify whether your permissions are inherited from a higher scope when checking access.

When Checking Azure Subscription Access

• Insufficient permissions to view access
• Role assignments applied at unexpected scopes
• Delayed permission propagation
• Follow the principle of least privilege
• Regularly audit subscription permissions
• Use Azure AD groups instead of individual users for access management

Checking your access on an Azure subscription is essential for security, compliance, and smooth operations. By understanding Azure RBAC and using the Azure Portal, Azure CLI, or PowerShell, you can verify permissions effectively. Regular audits and proper role assignments ensure efficient and secure cloud management.

Frequently Asked Questions

1. How do I check my role in an Azure subscription?

You can check your role using the Azure Portal under Access control (IAM) or by using Azure CLI or PowerShell commands to list role assignments.

2. What permissions are required to view Azure subscription access?

You need at least Reader access or higher to view access at the subscription level.

3. Can I check Azure subscription access without the Azure Portal?

Yes, Azure CLI and PowerShell allow you to check access programmatically, which is useful for automation and scripting.

4. Why do I see access denied even though I have a role assigned?

This may occur due to incorrect scope, role limitations, or a delay in permission propagation.

5. How often should Azure subscription access be reviewed?

Best practices recommend reviewing permissions quarterly or whenever team roles change.