I have a Symfony3 application which is to have a single sign-on relationship with a third party application.
However, the developer of the 3rd party application have rigorous security requirements and have compelled us to use Azure AD for authentication as opposed to out application.
I have configured Azure AD as the IDP and my Application as SP. My question is, how would I be able to have both applications authenticate once through Azure AD because they have difference sign-on urls and subsequent redirect pages.
What Azure AD allows is single sign-on. So when a user signs in, they get an active session with Azure AD.
This then means that when you redirect the user to sign in from your app, they will be automatically signed in if they have an active session.
In your case since the app is multi-tenant, the user will be automatically redirected back to your app without needing to login again if they already signed in earlier. Though if they are logged in to multiple accounts at once, Azure AD will require them to choose which account they want to use.
Related
I need to provide an SSO between two independent applications via the Azure AD SSO.
My app (A) use Firebase as the backend and currently isn't registered in Azure AD.
The second App (B) is registered in Azure AD via App Registration and I think has password-based login now (but it doesn't really matter). Can't say what technology it uses for the backend.
I've read a lot of Azure documentation but can't understand how exactly should I connect them with SSO.
I see that I can connect applications from the Enterprise Applications list. Is this the only way to do it? In this case, I need to publish my app to the Enterprise Applications gallery but it feels like an overcomplicated solution.
SSO feature and experience depends on the type of auth-protocol being used. It also varies based on that. Lets say, your app uses OpenIDConnect then the SSO experience would be something like what mentioned here: https://learn.microsoft.com/en-us/azure/active-directory/manage-apps/configure-oidc-single-sign-on
If it uses SAML as the auth-protocol it looks something similar to: https://learn.microsoft.com/en-us/azure/active-directory/manage-apps/configure-saml-single-sign-on
and if its using Password-based SSO then: https://learn.microsoft.com/en-us/azure/active-directory/manage-apps/configure-password-single-sign-on-non-gallery-applications
Specifically for Password-Based SSO, it provides SSO by storing the credentials in the browser extension. With password-based sign-on, users sign on to the application with a username and password the first time they access it. After the first sign-on, Azure AD supplies the username and password to the application.
Password-based single sign-on uses the existing authentication process provided by the application. When you enable password single sign-on for an application, Azure AD collects and securely stores user names and passwords for the application.
Choose password-based single sign-on when:
An application doesn't support SAML single sign-on protocol.
An application authenticates with a username and password instead of access tokens and headers.
In your case, both you apps (MyApp-A and MyApp-B) needs to be registered in AAD and they should support neither SAML or OIDC.
I have a multitenant application js client with masal and Web Api all is working good. User can log in and use the Api.
I'm trying to read the ad groups user belongs to with Graph Api.
It works fine for the user on the same tenant where the app has been registered but if I'm using user from different tenant I have 403 (Insufficient privileges to complete the operation.) error, trying to access /users/{userId}/memberOf endpoint.
After I registered applications on azure for client and server I set the appropriate permissions in Api permission section (Application permission) which I thought is the case but it must me missing something else.
Any idea what I'm missing?
Please refer to aricle below :
Understand user and admin consent
For a multi-tenant application, the initial registration for the application lives in the Azure AD tenant used by the developer. When a user from a different tenant signs in to the application for the first time, Azure AD asks them to consent to the permissions requested by the application. If they consent, then a representation of the application called a service principal is created in the user’s tenant, and sign-in can continue. A delegation is also created in the directory that records the user’s consent to the application.
Your application uses permissions(/users/{userId}/memberOf) that require admin consent, if an ordinary user tries to sign in to an application that requests a delegated permission that requires administrator consent, your application receives an error.
In Azure AD V2.0 , you can redirect the user to the Microsoft identity platform admin consent endpoint:
// Line breaks are for legibility only.
GET https://login.microsoftonline.com/{tenant}/v2.0/adminconsent?
client_id=6731de76-14a6-49ae-97bc-6eba6914391e
&state=12345
&redirect_uri=http://localhost/myapp/permissions
&scope=
https://graph.microsoft.com/calendars.read
https://graph.microsoft.com/mail.send
See document : Admin consent on the Microsoft identity platform
What is the best method of securing a REST Web API with the following requirements. The system has an Angular JS frontend with the REST APIs implemented in ASP.net.
There are two "roles" in the system, users will have one of the
roles. One role should allows access to some APIs (call it "VIEW"),
the other role allows access to other APIs
All users are in Active Directory, so if I have a username, I can check what role they are in- Some clients are on Windows boxes, the others are on Linux
I would like to persist the session so I don't have to look up AD for every API call
I would like single sign on. On the Windows machines, I don't require them to enter user and pass as I already can retrieve their username using Windows Authentication.
I believe that Oauth would be my best option.
There are two "roles" in the system, users will have one of the roles.
One role should allows access to some APIs (call it "VIEW"), the other
role allows access to other APIs
For role based authentication, you can use [Authorize("Role" = "Manager")]. The token will be provided by the identity server and will contain the claim as Role.
All users are in Active Directory, so if I have a username, I can
check what role they are in- Some clients are on Windows boxes, the
others are on Linux
If you have ADFS then you can have an Identity server that trusts the ADFS. The ADFS will provide a token which will have the claim for role and your Identity Server will do the claims transformation and will return the same Role claim back to angular app.
I would like to persist the session so I don't have to look up AD for
every API call
For this while requesting the token, you can ask for offline scope so the Identity server will provide the Refresh Token with Access Token so you don't need to ask for AD again and again.
I would like single sign on. On the Windows machines, I don't require
them to enter user and pass as I already can retrieve their username
using Windows Authentication.
For this one, you can have your Identity sever trust the WSFederation for windows Authentication.
So basically you need to setup Identity server that will provide you with the token and the REST API will use that token to verify claims to return the correct information back to the user.
I am not sure what you expect exactly. Anyway, first I'm gonna reformulate your question with requirements:
you accounts and role are in active directory
you want to manage roles based on an active directory group
you want anybody whatever the system (windows, linux, mac, mobile...) to connect on your application using the same authentication
you want to avoid your AD to be hit constantly (not at any call for example)
if the user is connected on an application that uses the authentication system, he doesn't have to do it so again on another application that uses the same authentication system
If these requirements are yours. I believe the only standard (and clean) solution is to use OAuth. I'm not gonna go in detailed description of OAuth, but this authentication protocol is the most standard one on the net (facebook, google, twitter...). Of course as you don't want to use facebook, google or twitter accounts in your business applications but your active directory accounts you'll have to install/setup/develop your OAuth identity provider using accounts of your active active directory server. Your choice will depend on how well you know ADFS protocol and its different flows (code, implicit, assersion) You have two solutions for it:
Use ADFS: install ADFS; it provides a OAuth portal that will work out of the box with asp.net mvc. This uses the code flow of OAuth that is the only OAuth flow supported by ADFS. For roles and its related AD groups, you'll have to map role claims with AD groups. (it's in the setup of adfs, you'll find many tutos on the net). You'll find lot of tutos as well about how to use ADFS with asp.net mvc/asp.net webapi. I mention .net here, but every technology has an implementation for OAuth authentication (nodeJs/express, php, java...).
Use thinktecture identity server (.net technology). This will provide all the foundation to implement a custom identity server with the least effort: http://www.thinktecture.com/identityserver / https://github.com/IdentityServer/IdentityServer3. It contains an addin to plug its accounts to active directory. With this, you can use implicit and assertion flows.
Use oauth2orize (for nodeJs): https://www.npmjs.com/package/oauth2orize. This will permit you to make the same than thinktecture identity server but in nodeJs. Apparently you'll have to make all the wirering with ad manually. With this, you can use implicit flows (not sure about assertion flows).
At application side, most of frameworks can authenticate easily using OAuth with a lot of existing frameworks. For example, even if you make a single page application, you can use adal.js or oidc.js for angular if you use angular. As I mentioned above, all this is taken in charge by asp.net mvc/webapi out of the box but I know it's the case for other server technologies. If you have more questions, don't hesitate as I'm not sure of what you expect exactly.
I have a design requirement for an ASP.NET MVC 4 (.NET 4.6.1) app hosted on the company server (Not Azure) to do the following:
Check is user is authenticated via Windows Authentication
a)Yes - designate user as "authenticated"
b)No - use OpenIdConnect (OWIN) to authentication using Azure Active Directory.
Once authenticated use the standard [Authorize] attributes on controller methods etc. I have implemented Windows and Azure AD authentication alone is individual MVC apps but never together.
I have found several sources describing how to mix Windows and Forms authentication, but none for this combination.
Does anyone have insights on how this might be achieved?
I had a similar requirement a year ago and my approach was :
The users are redirected to input their AD credentials (https://azure.microsoft.com/en-us/documentation/articles/app-service-mobile-how-to-configure-active-directory-authentication/)
Once they are sucessfully logged in on the AD you will get a token.
Then I call the Azure AD API on their behalf using the token I just got. I woulds just call the /me endpoint that will return me the user personal details.
With the above response I just need to check if the email address matches the email address that was initially requested.
If it matches it means the user was successfully validated against the AD.
Then you can proceed and issue that user a token or cookie to access your application.
We have an ASP.NET web application that we offer as a Service (it's hosted and it's accessible on the Web). We use Forms Authentication and our users have to enter a username/password to connect to our application. Some of our customers ask that we support single sign-on by authenticating users with their own Active Directory.
Our application has a different URL for each customer
www.ourapp.com/client1/
www.ourapp.com/client2/
www.ourapp.com/client3/
and each URL has its own web.config file (where asp.net settings can be specified and can vary for each customer).
What do I have to change in my ASP.NET application to support that?
What do I have to change on my Windows server configuration?
What will the customer have to do on his side to enable that?
Regards,
Check How To: Use Forms Authentication with Active Directory in ASP.NET 2.0 In short, you configure an ActiveDirectoryMembershipProvider to verify each username/password with the customer's AD. The customer must create an AD account for you that is allowed to perform the verification - which may be a problem with some customers. What's more, your code will handle the actual username/password used by users in their internal network, which can be an even bigger problem with customers.
A more secure solution is to use federation (using ADFS) or Claims Authentication using Windows Identity Foundation. In this case you "only" have to set trust relations between your domain and theirs.