There is no mitigation - if MFA is configured for your tenant and Azure AD decides to enforce it, AADSTS50079: The user is required to use multi-factor authentication. tenanted (of the form &response_type=code&scope=user.read.The authority passed in the PublicClientApplicationBuilder needs to be: You should fallback to a user prompt if IWA fails Don’t expect a deterministic set of rules, Azure Active Directory uses AI to continuously learn if 2FA is required. From our observations, 2FA is required when you login from a different country, when not connected via VPN to a corporate network, and sometimes even when connected via VPN. You do not control when the identity provider requests 2FA to be performed, the tenant admin does. IWA is non-interactive, but 2FA requires user interactivity. If MFA is configured, IWA might fail if an MFA challenge is required, because MFA requires user interaction. IWA does NOT bypass MFA (multi factor authentication). This limitation does not affect the Username/Password flow.ĭoes not work for MSA users. Users created directly in Azure AD, without AD backing - managed users - cannot use this auth flow. those created in an Active Directory and backed by Azure Active Directory. IWA Constraintsįederated users only, i.e. No UI is required when using the application. If your desktop or mobile application runs on Windows and on a machine connected to a Windows domain (AD or AAD joined) it is possible to use the Integrated Windows Authentication (IWA) to acquire a token silently. This eliminates most of the limitations with IWA. Internally, the Windows Broker (WAM) will try several strategies to get a token for the current Windows user, including IWA and redeeming the PRT. This workflow does not require complex setup and it even works for personal (Microsoft) accounts. WAM can login the current windows user silently. Integrated Windows Authentication has been replaced with a more reliable way of getting tokens silently - WAM.
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