My application is an Angular 2+ SPA, which uses Azure Active Directory and the back end API is implemented in Node JS. Currently, when an user tries to login, an Azure pop-up appears, User enter login/password which will get authenticated in AD, AD returns a bearer token which I use to authenticate Node JS API.
My requirement is, to use Integrated Windows Authentication (IWA). The Front End should use Windows authentication to get the bearer token from AD instead of asking user to enter login/password. How Can I do that? Whatever articles I see about this, all talk about IIS and .Net based application. Should I always use .NET based API to use Windows Authentication? Any hints would be greatly appreciated.
Just a note, the API is an enterprise application hosted in the cloud. All the users are internal company employees and are registered with AD.
Given you already have Azure AD sync setup, the following may be useful. AAD Connect allows you to seamlessly login with SSO:
https://learn.microsoft.com/en-us/azure/active-directory/connect/active-directory-aadconnect-sso
Azure services doesn't support Windows Authentication, unless you setup a VM with IIS. I assume by your requirements "...Get the bearer token instead of asking user to enter login/password" mean single signon. That is, when a user is logged into the domain on their PC, they don't have to login again to your application.
There are a few ways to approach this depending on your AD configuration, but usually you have to configure ADFS for your organisation AD to allow your cloud app to authenticate you. If you are already logged in, it will simply redirect you and your app will receive the bearer token.
https://azure.microsoft.com/en-au/resources/videos/configuring-ad-fs-for-user-sign-in-with-azure-ad-connect/
Another option is to connect your organisation AD with Azure AD, using Azure AD sync. The following link helps with this. You would then configure your app to authenticate against Azure AD (as it currently does).
https://learn.microsoft.com/en-us/azure/architecture/reference-architectures/identity/azure-ad
AD configuration is not a simple configuration,
Related
I have an already deployed application on azure app service which uses azure AD for authentication and authorization.
Unfortunately the developer who worked on it is no longer available
i got access to all Azure resources and source code but i cant figure out how can i add my azure account as one of the users to the app (i can login but its an empty view for me unlike what it used to be with the developer access).
Also i find the app registered on Azure AD and i am an owner there but still with no right access.
When i try to login localy from the frontend it say
Selected user account does not exist in tenant 'Default Directory' and
cannot access the application '[some numbers] in that tenant. The
account needs to be added as an external user in the tenant first. Please use a
different account.
Would appreciate any help and many thanks in advance.
I can login but it’s an empty view for me unlike what it used to be
with the developer access
This is because your backend application is enabled with Azure AD Authentication.
After you sign in to your front-end application, you still can't access the data from the back-end app, because the back-end app now requires Azure Active Directory sign-in from the front-end app
To access the application, follow the below steps:
Grant the front-end access to the back end
Configure App Service to return a usable token
Use the token in your code
You can refer Enable authentication and authorization for front-end app in Authenticate users E2E - Azure App Service | Microsoft Docs for the detailed steps
My company has developed a web-based application for internal and external use. The application is developed by angular + asp.net WebApi and authorised by OAuth. Users have to use the username and password given by us to login. The application works well. Recently, clients made a new request to login our system through Azure AD SSO. They want us to integrate their Azure AD.
Requirements:
On login page, there should be a new option for users to login our system by connecting to their Azure AD.
Alternatively, if their employees are connected to their system and then visit to our website, they will be automatically logged in our website without entering username and password.
I have no knownledge about Azure AD SSO and still get confused even I did some search on google. Can someone give me some advice or hints?
Using Msal with Angular you can implement the Azure AD SSO login. There are multiple code samples and microsoft documents available to achieve your requirement.
Please go through the documentation and code Sample.
In the Angular sample there is a function as mentioned below which verifies the user credentials if the user is already logged in or not.
checkoutAccount() {
this.loggedIn = !!this.authService.getAccount();
}
I am trying to have two applications(app1 and app2) in Azure
AD B2C, which is configured for Web api and another application that is configured for mobile app.
I need my mobile app to talk to app1, get the access token, using the app1's application-id and scope. Then use the access token got from app1 to communicate with app2. I enabled SSO in tenant level in the policies but it still says "Authorization denied" for the access token provided.
How can I reuse the access token got from one application to be used in another application.
We have been trying to get through this limitation (or function as designed for security) of B2C AD from weeks.
However, Microsoft does not support it.
We did not want to display MS login page to mobile user on mobile login screen (UX gets compromised). But MS says there is no way possible to avoid it. See response from MS on support ticket.
For more information: Azure AD B2C: Requesting access tokens
You will also benefit reading authentication scenarios supported. We are after something similar to this what they call "Daemon or Server Application to Web API".
In this diagram, Server Application = to mobile application in our case. However you will notice that in this scenario it is assumed that the user is already authenticated (via interactive flow).
We tried to act smart, thinking we can write a Auth web API which mobile will hit to obtain token and then pass this token to our business logic API (secured by B2C AD). We obtained access and refresh token somehow, however the test web app (mobile app) when pass this access token to our business logic API, it fails to validate the token. B2C AD comes fighting for it. Our analysis is not yet complete.
However, I am certain what we are trying to accomplish is not supported in B2C AD.
Hope this helps (I would actually advise you to look for other solution). I will be happy if someone can suggest a way to solve this obvious business problem.
Scenario: I already have a registered multi-tenant web application that is compatible with Azure SSO. I'm now in the process of developing an iOS application that will support SSO authentication for the app as well.
Based on the example provided in https://azure.microsoft.com/en-us/resources/samples/active-directory-ios/ I created a Native application for the iOS app with delegated permissions from my WebApp (ref: https://stackoverflow.com/a/29810124).
This works for any user that exists within the AAD that the app was created. However, as soon as I want to SSO from a different domain that has previously authorized the WebApp I get an error:
Application with identifier 'CLIENT_ID_HERE' not found in directory DOMAIN_HERE.onmicrosoft.com
This implies that the native application is not multi-tenant? This seems a bit bizarre considering it should be possible for users outside of the domain to SSO to an application.
Right now, for my browser based SPA I'm simply able to manually call the common Azure login page to consent and get an authorization code for a user. I then send this code to a backend (the WebApp) that performs the OAuth handshake and gets a valid token. This does not require a client_secret from the application because the SPA isn't actually performing token retrieval.
So when I attempted to use the WebApp's client_id instead (similar to what https://stackoverflow.com/a/27033816 is suggesting) I was met with an error with the Azure AD iOS SDK requiring that I provided a client secret as well. It seems that the SDK is abstracting a fair amount of this and grabbing a token for you rather than performing a step when I can simply get an authorization code and send it to my WebApp.
TLDR: My requirements are very similar to the ones outlined in multiple-tenant, multiple-platform, multiple-services single sign-on using Azure Active directory where I have multiple clients (browser, iOS, Android) that all need to be able to use Azure SSO. I'm assuming the mobile apps should be able to use my existing WebApp to authenticate the users.
The question posed in the answer of the previous SO post somewhat explains my issue:
How can my mobile app access my multi-tenant web api on behalf of the user?
References
https://learn.microsoft.com/en-us/azure/active-directory/active-directory-authentication-scenarios#native-application-to-web-api
https://github.com/Azure-Samples/active-directory-dotnet-webapi-multitenant-windows-store
At present the native app which register on the Azure portal doesn't support multi-tenant. You may consider using the V2.0 endpoint which also support the Microsoft accounts.
TLDR: My requirements are very similar to the ones outlined in multiple-tenant, multiple-platform, multiple-services single sign-on using Azure Active directory where I have multiple clients (browser, iOS, Android) that all need to be able to use Azure SSO. I'm assuming the mobile apps should be able to use my existing WebApp to authenticate the users.
Did you mean that have different font-end and the Multi-Tenant Web Application is the back-end? In this scenario, there is no need to register another native client application on the portal, you can refer here about add authentication for the iOS app.
So the majority of Microsoft's tutorials use their AAD SDK to generate OAuth access tokens whereas I needed to simply get an authorization_code to send up to a backend that's registered as an existing multi-tenant web application so it could properly generate a token using its own client_id.
This was done using the correct redirect_uri in the AD OAuth code documentation:
For native & mobile apps, you should use the default value of urn:ietf:wg:oauth:2.0:oob
Note that sending up urn:ietf:wg:oauth:2.0:oob will actually result in a schema error for the multi-tenant OAuth login page (https://login.windows.net/common/oauth2/authorize) so you must use https://login.microsoftonline.com/common/oauth2/nativeclient instead.
I have a website (azure), that has a login page for the user to insert it's username and password.
Currently, the login is using LDAP to autenticate the user.
Now the client wants to use/activate the single sign on functionality, but using their Windows Server Active Directory (they don't want to use the Azure Active Directory).
Is this possible to do? Whats the best approach?
These are the two options I know:
You can use Microsoft Active Directory Federation Services (aka ADFS). This is a component that should be installed in your customer infrastructure and talks with the AD, your website will talk WS-Federation with ADFS. Authenticating a user means basically redirecting the user to a ADFS, if the user is in the LAN and is already authenticated to AD, ADFS will login automatically, but if is outside it will prompt user credentials.
Another approach will be to use a third party authentication broker. Auth0 is an authentication broker that you can add from the azure store, you will need to create an AD "Connection", which will require to install an small MSI on your customer infrastructure. For this case it works more or less like ADFS but your application talks OAuth with Auth0 rather than Ws-Federation so in lot of cases it is easier to implement.
Disclaimer: I work for Auth0.