What is the use of Azure Key Vault in case of WebApp - azure

We have hosted our application on Azure WebAPP and wanted to use SSL on this. Should we use traditional way to attach this certification to Azure WebAPP or should we user Azure Key Vault. Since access to Azure WebAPP through RDP is not available and Azure is managing our WebAPP, can certification be compromised (if the Azure key vault is not used)?
I can understand its usage in case of VM, but on Azure, WebApp does it add any value.

Azure Web App doesn't rely on Azure Key Vault for any of its functionalities.
However, if you are using App Service Certificate, then you end up configuring Azure Key Vault for storing the secret. Other use cases are also there, but those are from an application perspective.

Related

How can I hide username and password in connection string in Azure App Service?

I have an app service and in the Configuration section there is a connection string that connect to a database as follows:
Server=tcp:myserver.database.windows.net,1433;Database=myDataBase;User
ID=mylogin#myserver;Password=myPassword;Trusted_Connection=False;Encrypt=True;
How can I hide the plain text password utilizing Azure services or anything else?
Azure Key Vault is a good way to hide credentials in connection strings in an Azure Web App. Here's an overview of the steps you can follow:
Create an Azure Key Vault instance.
Add the connection strings you want to store as secrets in the Key
Vault.
Grant access to the Azure Web App to retrieve secrets from the Key
Vault.
In the Azure Web App, retrieve the connection strings from the Key
Vault at runtime.
As a general approach: Use Key Vault-referenced App Settings in Azure App Service.
Your preferred way, however, should be to use Managed Identity of the App Service and then use Azure AD-based authentication for all services which support it (Azure SQL does).

Use Azure Key Vault from external web app

is it possible to use Azure Key Vault for web app, which is hosted somewhere else? I'm looking for the most cost-effective way, how to do that, so ideally I would like to use really just the Key Vault. I can allow external IP in Key vault -> Networking, but I don't see any possibilities how to set up access policy for external web app in the Key vault -> Access Policies.
Any experiences or ideas how to do that?
Thanks!
but I don't see any possibilities how to set up access policy for
external web app in the Key vault -> Access Policies.
One possible way to accomplish this would be to create a Service Principal in your Azure AD and give it access to your Key Vault (under Access Policies). Then you would use this Service Principal in your "external" web app to connect to the Key Vault.

Windows VM system-assigned managed identity to access Azure Key Vault in Typescript?

How we can get the Access to Azure key vault secrets from Typescript app.
We have access to the VM on which the application is running.
What are the steps and code we need to place in Type script react application to get azure key vault access?
It is not possible and not recommended to use Azure key vault in Typescript app. It is a security risk, as anyone can see your KeyVault connection details from browser console and access your secrets.
You should not access secured resources directly from client code.
https://www.npmjs.com/package/#azure/keyvault-secrets
Angular - Azure Key Vault Managing Vault Access secrets
https://learn.microsoft.com/en-us/answers/questions/318983/is-it-possible-to-use-key-vault-in-static-web-appl.html

Getting Azure key vault certificates works only from local machine

I am using Identity server to handle logins in my app hosted in MS Azure. I am using Azure key vault to store my certificates. When I am trying to obtain certificates from Azure Key Vault on local machine, everything works fine, but after deploying to the server, I am getting the error described bellow.
I have followed this tutorial: https://damienbod.com/2020/04/09/using-certificates-from-azure-key-vault-in-asp-net-core/
I have created Azure AD and registered my app into it. Also I have created Azure Key Vault, added my app into Key Vault access principles and inside my app service I have allowed identity assigned by the system.
When I deployed this app on the server I am getting this error
In the key vault I allowed all permissions for this app
Is there some more setting, which needs to be done before deploying?
Thanks.
After you enable the system-assigned identity for your app service, you also need to add it to the Access policies of the keyvault with the correct certificate permission(just navigate to the Access policies, search for the web app name and add it).
The sample you provided use the AzureServiceTokenProvider, when you deploy your code to app service, it should use the system-assigned identity to access the keyvault in your case.
To let this work, you also need to specify the AzureServicesAuthConnectionString environment variable in your app service with RunAs=App, see this link.

How do I securely store connection strings client id etc?

Let me give some details of my setup
I am building an asp.net core API app being hosted on Azure. I store my secret keys and stuff in azure keyvault. However, I have some AzureAddClientId and secret which is now stored in appsettings.json( to access key vault ). I have also committed appsettings.json to my git repo. However I know that is insecure. I use Azure DevOps for releases. So I'm thinking of doing the following. Please let me know your thoughts on this.
add appsettings.json to git ignore and share the file among developers.
add AzureAddClientId and AzureAADClientSecret to azure DevOps build pipeline as variables. ( Will devops automatically take the variables just as if they were in appsettings.json? )
Please have a look at using Managed Identities.
A common challenge when building cloud applications is how to manage the credentials in your code for authenticating to cloud services. Keeping the credentials secure is an important task. Ideally, the credentials never appear on developer workstations and aren't checked into source control. Azure Key Vault provides a way to securely store credentials, secrets, and other keys, but your code has to authenticate to Key Vault to retrieve them.
The managed identities for Azure resources feature in Azure Active Directory (Azure AD) solves this problem. The feature provides Azure services with an automatically managed identity in Azure AD. You can use the identity to authenticate to any service that supports Azure AD authentication, including Key Vault, without any credentials in your code.

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