ADFS Remains Relevant Amid Transition to Entra ID
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🔄 ADFS Continues to Play a Role Despite Microsoft’s Push for Entra ID. Microsoft has been encouraging users to transition from Active Directory Federation Services (ADFS) to Entra ID, yet ADFS remains prevalent in many organizations, particularly in hybrid environments. This article delves into ADFS’s internal workings, focusing on its OAuth2 capabilities, Device Registration Services (DRS), and authentication methods. It highlights the complexities of integrating ADFS with modern security features and discusses potential attack vectors, including phishing through Device Code OAuth2 flows. The author emphasizes the importance of understanding ADFS, even as organizations adopt newer technologies, to navigate security assessments effectively. For those still working with ADFS, the insights provided aim to enhance practical knowledge and application.
