I am trying to protect my API (springboot+java) using Client Credential Grant flow with Azure AD as Authorization Server.
I have looked the internet but the examples I am finding is resource and authorization server in springboot.
Does anyone has any samples of how to secure API with Client Credential Grant Flow using Java Springboot and Azure AD?
Any help will be highly appreciated.
We use client credentials flow to get access token with the following steps. The access token is provided by Azure AD.
Try this sample with ClientCredentialsResourceDetails.
Related
I have an secured API student API which I am able to access via OAuth2.0 client credentials flow which creates an access token using IConfidentialClientApplication app and accesses secured app.
Now comes to access the secured API using OAuth 2.0 Resource Owner Password credentials. I have mostly used the code in microsoft github page.
https://github.com/azure-samples/active-directory-dotnetcore-console-up-v2
I am able to sign in using username and password, able to generate access token as well. But this access token is not able to access my secured student API. Though the sample code is able to access the Microsoft graph API, it is not able to access my secured API.
I tried to allow public client flow for my secured student API as well and decrypted both the access tokens to see the difference. There is a lot of difference. What I noticed here is in ROPC flow are using IPublicClientApplication where I am not able to give the ResourceId while acquiring token. So "aud" is different in ROPC token and other fields as well.
Can anyone tell where I may be going wrong or how to fix the above scenario?
I think you may need to perform these 2 steps to get a token valid for your own API:
Expose an API scope in your Azure AD API Configuration
Add an API permission in your Azure AD Password Client Configuration
See step 6 of my Azure AD Blog Post for how this looks. The article also explains some token differences.
I have configured an OAuth 2.0 server for my Azure API Management. I have tested it using Developer Portal (Legacy) to generate Auth Code and it worked fine. However, I want to implement it for a machine to machine scenario and need to test it with Postman to generate a jwt from an endpoint. I'm not sure how I can do this. Need Help.
You will have to implement the Client Credentials flow for the server to server OAUTH Authorization flow. Following blog provides you with the step by step process to set up the Client Credentials flow.
"OAuth 2.0 Authorization with the Client Credentials Flow on Azure API Management"
I follow another practice on top of the steps mentioned in above blog post. I create a token endpoint specifically to get the access token and I implement the logic to call the AAD token endpoint in this API rather than giving the azure AAD url to external customers
Update: Authorization code grant flow can not be tested using the API testing tool as the flow requires explicit human intervention to authorize the app to grant access to the resources.
I want to CALL api which needs azure ad authentication.
I succeeded azure ad authentication from browser sign in, but I also want to access to api from script.
How can I sign in azure without browser sign in flow?
additional question.
I succeeded server-to-server authentication flow, but Is there way to call api as an "azure ad account" ?
You can implement client credential flow in node.js which will not require browser.
Please find document which can help you in adding Azure Active Directory modules for Node.js
Please find code sample here which illustrates server-to-server authentication via client credentials flow.
I'm building an Android app that will access Azure REST API and read some data from azure monitoring.
I'm having problem on the authentication process because not sure is it possible to use MSAL library to authenticate to access Azure REST API?
In your mentioned demo code that the resource is microsoft graph.
If you want to use Azure service management API, we need to change the resource to https://management.azure.com. And we need to assign role to the registried Application.
I am not familiar with preview SDK, but we also could do that with following way to get the access token for Azure management API.
By default the V2 application is not displayed in the Azure portal. So we need to consent the permission. Then we could found it in the Azure portal.
https://login.microsoftonline.com/{tenantId}/adminconsent?
client_id={clientId}
&state=12345
&redirect_uri={redirectUrl}
Then use the admin account to approve the consent. After that we could find the V2 application in the Azure portal and assign the role to application.
From this document, we could know that the v2.0 endpoint does not support OAuth 2.0 Resource Owner Password Credentials Grant.
So we could use the authorization code follow to get the access token.
get the authorization_code
https://login.microsoftonline.com/{tenantId}/oauth2/v2.0/authorize?
client_id={clientId}&response_type=code
&redirect_uri={redirect_uri}
&response_mode=query
&scope=https://management.azure.com/user_impersonation
&state=12345
get access token
https://login.microsoftonline.com/{tenantId}/oauth2/v2.0/token?
scope=https://management.azure.com/.default
&client_id={clientId}
&grant_type=authorization_code
&redirect_uri={redirectUri}
&code =AQABAAIAAAC5una0EUFgTIF8ElaxtWjT6o1ePh...
Test Accesstoken
I have an API Management resource on Azure which uses an API running as a Kubernetes cluster.
I want to have OAuth2.0 authentication for clients/applications which connect to the API management URL. I do not want any user authentication, but only want clients which want to use the URL to send a client ID and client Secret.
How do I do this?
I could not find anything related to this in the documentation.
If you dont want user context to be involved, You must prepare client credential flow from Oauth2.0 which uses client id and client secret.
I am explaining using Azure AD.
1) Create Application in Azure AD and get client id and secret
(https://www.netiq.com/communities/cool-solutions/creating-application-client-id-client-secret-microsoft-azure-new-portal/)
2) Call token end point of Azure AD to get secured token
(https://learn.microsoft.com/en-us/azure/active-directory/develop/active-directory-protocols-oauth-service-to-service)
3) Pass this token to APIM using authorize or from any header
4) Validate JWT and check issuer,audience and application level scopes
(https://learn.microsoft.com/en-us/azure/api-management/api-management-access-restriction-policies#ValidateJWT)
No sure what exactly are you asking!
But here are two places where you will find a solution to your question:
How to secure your backend apis: https://learn.microsoft.com/en-us/azure/api-management/api-management-howto-protect-backend-with-aad
API Management access restriction policies: https://learn.microsoft.com/en-us/azure/api-management/api-management-access-restriction-policies. More specific here check the Validate JWT (https://learn.microsoft.com/en-us/azure/api-management/api-management-access-restriction-policies#ValidateJWT)