Scenario: You use the Microsoft Graph Explorer tool to test a query. It requires you to consent to a permission so you use your admin account to do this. However, you click the check box to consent for the entire organization… woops! You did not mean to give everyone permissions for “AuditLog.Read.All” so now you need to revoke this permission. The easiest way to revoke consent is to just delete…
Read MoreHow to sign in as a guest user in Graph Explorer
Besides tenant members, it is also possible to use Graph Explorer signed in as a tenant’s guest user. In Graph Explorer, add “?tenant=”{tenantname.onmicrosoft.com}” to the URL in the address bar (eg https://developer.microsoft.com/en-us/graph/graph-explorer?tenant=contoso.onmicrosoft.com), and press enter. This will explicitly make Graph Explorer to consider only that tenant when signing in. Now sign into Graph Explorer as usual, with a guest user’s credentials. Afterwards, try making this GET request: “https://graph.microsoft.com/v1.0/me”. In the…
Read MoreTroubleshooting 403 Authorization error when calling Microsoft Graph Security API
You may get the following 403 error when using Microsoft Graph Security API to call various end points (https://graph.microsoft.com/v1.0/security/alert, https://graph.microsoft.com/beta/security/secoreScores, etc…) “Auth token does not contain valid permissions or user does not have valid roles” Root Cause The above error can occur if the access token is missing the following requirement: The token does not have the required Microsoft Graph permission for the https://graph.microsoft.com/v1.0 (or beta)/security/xxx entity endpoint being used…
Read MoreUpdate your Azure AD-integrated applications to use TLS 1.2
Recently our support team has seen quite a few cases where customer applications have been working for years and recently started failing with one of the following error messages:. These errors are often seen in applications targeting an old version of .Net Framework. AADSTS1002016: You are using TLS version 1.0, 1.1 and/or 3DES cipher which are deprecated to improve the security posture of Azure ADIDX20804: Unable to retrieve document from:…
Read MoreReceiving error “CompactToken parsing failed” when calling Microsoft Graph
You may receive the following 401 error calling MS Graph endpoint (https://graph.microsoft.com) { “error”: { “code”: “InvalidAuthenticationToken”, “message”: “CompactToken parsing failed with error code: 80049217”, “innerError”: { “date”: “2022-08-16T19:00:22”, “request-id”: “xxx”, “client-request-id”: “yyy” } } } What’s the cause of the error? The error typically happens due to the following reasons: There is no Bearer Access Token in the Request’s Authorization Header The value of the Authorization Header is in…
Read MoreUsing Microsoft Graph PowerShell SDK to manage user consented permissions
The oAuth2PermissionGrant object keeps a record of user consented permissions (Delegated Permissions) in a tenant. There is one OAuth2PermissionGrant object (identified by Consent ID) for each combination of client application, resource application, and user. The sample PowerShell script in this post will perform the following tasks: Remove all MS Graph Delegated permissions (if any) for the user Perform user consent for an initial set of MS Graph permission Update the…
Read MoreUsing Azure Identity Client with VB.Net or C# to get a KeyVault secret
This blog post will show you how to use the Azure Identity Client library in VB.Net and C# to use a Managed Identity to access a secret in KeyVault. This is assuming that you already have a keyVault secret and the user has the proper access policy to read a keyvault secret. This post will not show you how to do those tasks, only how to implement the Azure Identity…
Read MoreManaging Microsoft Graph requests in Microsoft Graph PowerShell
Basics of using Microsoft (MS) Graph PowerShell to update objects using Hashtables and JSON. These are just some examples that could be used. By no means would I consider these the “best” way to handle each scenario, however, this should get you started in the right direction. In general, a good thing to keep in mind, a Microsoft Graph type could be resembled as a PowerShell Hashtable or Array. To…
Read MoreUse logging to troubleshoot Azure AD protected Web API Authentication or Authorization errors
The sample web API application in this blog uses .Net 6 Framework and Microsoft.Identity.Web nuget package to Azure AD protect the Web API. I use Serilog framework for logging the debug output both to the console window and to the local file. This sample assumes you already have a web API application registered in Azure AD. If you are not familiar with how to do that refer to my previous…
Read MoreHow to Resolve IDX10501 Errors in a B2C Microsoft.Identity.Web Application
Consider the situation where you are developing an ASP.NET Core application that needs to support Azure B2C. Following the official Microsoft Document, you implement the Microsoft.Identity.Web library and three built-in User Flows. All is working well, but you also need to implement a Custom Policy. You find the following documentation which shows how to make a request with the B2C policy specified: https://learn.microsoft.com/en-us/azure/active-directory-b2c/enable-authentication-web-application-options#pass-the-azure-ad-b2c-policy-id You try to implement this guidance. Everything…
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