Find All Public Facing IP Addresses in Azure

To find all public-facing IP addresses in Azure, you can use the Azure portal or Azure CLI. The Azure portal provides a user-friendly interface to view and manage your resources.

Public IP addresses are used to access your Azure resources from the internet. They are assigned to network interfaces, load balancers, and virtual machines.

You can find public IP addresses associated with your Azure resources by navigating to the "IP addresses" section under the "Networking" category in the Azure portal. This section displays a list of all public IP addresses associated with your resources.

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To find public facing IP addresses in Azure, you can use the Azure Resource Graph Explorer, which is a powerful tool that allows you to query resources in your Azure tenant.

The Azure Resource Graph Explorer has a pre-built query called "List all public IP addresses" that can help you find public IP addresses associated with resources that have a type containing 'publicIPAddresses'.

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However, this query may not be enough, as some resources, like Local Network Gateways, Virtual Network Gateways, Web Sites, and others, may not have the type 'publicIPAddresses' but still have public IP addresses.

To expand your search, you can use Regex to look through all properties of all resources and identify IP addresses. A query to identify anything that looks like an IP could look like this: `type != null and notcontains(type, 'publicIPAddresses') and tolower(name) match 'ip'`.

This query can help you find public IP addresses in your Azure tenant, but keep in mind that it may also include private IP ranges like 10.0.0.0.

Here are some ways to obtain the list of allocated public IP addresses in Azure:

It's worth noting that dynamically allocated public IP addresses can change over time, so it's recommended to perform public IP scans immediately after gathering the IP addresses to ensure the accuracy of the results.

Here's a list of Azure resources that can be allocated public IP addresses:

Public IP addresses can be either static or dynamic. Dynamic public IP addresses can change over the lifespan of the Azure resource, while static public IP addresses will not change over the lifespan of the Azure resource.

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In Azure, the frontend IP address of the load balancer is represented by the Frontend IP Configuration resource. This resource has a unique name that is used to access it.

The Frontend IP Configuration resource has several properties, including the private IP address, private IP address version, and private IP allocation method. These properties can be used to understand how the frontend IP address is configured.

To find the public facing IP addresses in Azure, you can use the Public IP Prefix resource, which is referenced by the Frontend IP Configuration resource. This resource contains a list of public IP addresses that are allocated to the load balancer.

Here's a list of the properties of the Frontend IP Configuration resource:

By understanding these properties, you can identify the public facing IP addresses in Azure and use them to configure your load balancer.

An Application Gateway Backend Pool is a collection of backend IP addresses that can be used by an Application Gateway. This pool is used to route traffic to the backend servers.

The name of the backend address pool is unique within the Application Gateway and can be used to access the resource. The name is a string and is used to identify the pool.

The backend addresses in the pool are referenced by an array of ApplicationGatewayBackendAddress objects. Each object contains the IP address and other relevant information.

The provisioning state of the backend address pool resource is an important aspect to consider. It indicates whether the resource is being provisioned or not.

A unique read-only string, called an etag, is generated whenever the resource is updated. This etag can be used to track changes to the resource.

The location of the backend address pool is also an important aspect to consider. It indicates the geographic location of the pool.

Here is a summary of the key properties of an ApplicationGatewayBackendPool:

The frontend IP address of the load balancer is a crucial component in Azure Configuration.

The frontend IP address is represented by the FrontendIPConfiguration resource.

This resource has a unique read-only string called etag that changes whenever the resource is updated.

The name of the resource is unique within the set of frontend IP configurations used by the load balancer.

You can access the resource using its name.

The frontend IP address is referenced by the properties.gatewayLoadBalancer subresource.

Inbound NAT pools and rules that use this frontend IP are represented by the properties.inboundNatPools and properties.inboundNatRules subresources respectively.

Load balancing rules that use this frontend IP are represented by the properties.loadBalancingRules subresource.

Outbound rules that use this frontend IP are represented by the properties.outboundRules subresource.

The private IP address of the IP configuration is represented by the properties.privateIPAddress property.

The private IP address version is represented by the properties.privateIPAddressVersion property, which can be either IPv4 or IPv6.

The private IP allocation method is represented by the properties.privateIPAllocationMethod property.

The provisioning state of the frontend IP configuration resource is represented by the properties.provisioningState property.

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The public IP resource is referenced by the properties.publicIPAddress property.

The public IP prefix resource is referenced by the properties.publicIPPrefix property.

The subnet resource is referenced by the properties.subnet property.

The type of the resource is represented by the type property, which is a string.

A list of availability zones denoting the IP allocated for the resource needs to come from is represented by the zones property, which is an array of strings.

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In Azure Configuration, you'll come across the term "SKU", which stands for Stock-Keeping Unit. A SKU represents a specific version of a product or service, in this case, a public IP address.

The name of a public IP address SKU is determined by its type, which can be either PublicIPAddressSkuName or PublicIPAddressSkuTier.

If we look at the PublicIPAddressSkuName, we'll find two values: Basic and Standard. These are the two types of public IP address SKUs available.

Here's a breakdown of the two types:

The tier of a public IP address SKU, which is part of the PublicIPAddressSku, can also be either Basic or Standard. This is another way to refer to the same two types of SKUs.

Cloud IP Checker is a tool written in Go that allows you to check IP addresses against the published Azure IP ranges and service tags.

The tool provides valuable capabilities for verifying IP addresses against Azure's published ranges and can assist in identifying Azure services associated with specific IPs.

AzureIPCheck is another tool that offers similar functionality, developed by Leron Gray and available on GitHub at https://github.com/daddycocoaman/azureipcheck.

Both Cloud IP Checker and AzureIPCheck are useful tools for Azure administrators and developers who need to verify IP addresses and identify associated Azure services.

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To troubleshoot public facing IP addresses in Azure, it's essential to understand that Azure Load Balancer and Azure Application Gateway have different IP address formats.

Azure Load Balancer uses a private IP address, while Azure Application Gateway uses a public IP address.

If you're experiencing issues with your public facing IP addresses, check the Azure portal for any alerts or notifications related to your IP addresses.

You can also use Azure Monitor to track any issues with your public IP addresses.

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Identifying vulnerabilities is a crucial step in troubleshooting and security.

Most vulnerabilities can be categorized into three main areas: configuration, patching, and code-related.

A general rule of thumb for identifying vulnerabilities in Azure is to start with configuration issues.

Patching is another critical area to focus on, as outdated or missing patches can leave systems vulnerable.

Code-related vulnerabilities are often the most complex to identify and require a deep understanding of the codebase.

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When troubleshooting issues with Azure, it's essential to understand the different responses you can receive. A successful request returns a 200 OK status code and a list of PublicIPAddress resources.

The Azure SDK library can be used in your project, as outlined in the provided documentation. This library is a crucial tool for working with Azure resources.

If the request is not successful, you'll receive an error response with a status code other than 200 OK. This error response is described as a CloudError, providing information on why the operation failed.

Here's a breakdown of the possible responses you can receive:

Azure public IP addresses can be categorized as either static or dynamic. Dynamic public IP addresses have the potential to change during the lifespan of the Azure resource to which they are assigned.

Microsoft Azure publishes a JSON file containing public IP address ranges for all Azure regions and public services. This file is updated weekly with new ranges.

To obtain the list of allocated public IP addresses using Azure CLI, you can use the following command. However, it's essential to note that dynamically allocated public IP addresses can change over time.

Azure public IP address ranges can be allocated to various Azure resources, including virtual machine network interfaces, internet-facing load balancers, VPN gateways, application gateways, and Azure firewall instances.

Here is a list of Azure resources that can be allocated public IP addresses:

Public IP addresses can be used to establish internet connectivity and enable external access to Azure resources. It's essential to note that scanning public IP ranges that are not allocated to your Azure subscription or that you do not have authorization to scan is strongly discouraged.

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You can use the Azure Native Graph Explorer to query public IP addresses in your Azure Tenant. This solution provides a pre-built query called "List all public IP addresses".

The query returns public IP addresses from "Resources" that have a type containing 'publicIPAddresses'. However, this may not cover all resources that contain IP addresses, such as Local Network Gateways, Virtual Network Gateways, Web Sites, and others.

You can use Regex to expand your queries to look through all properties of all resources and identify IP Addresses. This can be a powerful tool for enumerating public facing IP addresses in Azure.

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Enumerating PaaS Services with Microburst is a powerful technique that can help you identify potential targets. You can import the MicroBurst module into your PowerShell session with a few simple commands.

The MicroBurst toolkit will import different PowerShell functions depending on which PowerShell modules you have installed on your system. This means you need to have the right modules installed before you can use MicroBurst.

To get started, you can use the Invoke-EnumerateAzureSubDomains function to identify potential targets that have a base name of azurepentesting. This function will help you find potential targets that match your search criteria.

With MicroBurst, you can automate the process of enumerating PaaS services and find potential targets quickly.

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Let's talk about lists and enumerations. A list can be a powerful tool for gathering information, and in the context of Azure, it can be used to retrieve a list of public IP addresses. The ListPublicIpAddresses API service call returns a PublicIPAddressListResult, which contains a list of public IP addresses that exist in a resource group.

The PublicIPAddressListResult has two key properties: nextLink and value. The nextLink property is a string that contains the URL to get the next set of results. This is useful if you need to retrieve a large number of public IP addresses, as it allows you to paginate the results.

The value property is an array of PublicIPAddress objects, which contain information about each public IP address. This includes the IP address itself, as well as other relevant details.

If you're working with PowerShell, you can use the ListPublicIpAddresses API service call to retrieve a list of public IP addresses. This can be useful for a variety of tasks, such as identifying open ports and listening services on a network.

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Here's an example of how you might use the ListPublicIpAddresses API service call in PowerShell:

This can be a useful way to gather information about the public IP addresses in an Azure environment, and can be used as a starting point for further investigation and enumeration.

To find public facing IP addresses in Azure, you'll need to navigate to the Azure portal and select the "Virtual Network" option from the left-hand menu.

In the Virtual Network section, click on the "Subnets" tab to view a list of available subnets and their corresponding IP addresses.

Public IP addresses can be found in the "Public IP addresses" section, which is accessible by clicking on the "Public IP addresses" tab in the Virtual Network section.

To view the public IP address associated with a specific Azure resource, such as a virtual machine, click on the resource name in the Virtual Network section and then click on the "Properties" tab.