Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Office 365 Logon Enhancement – Username Capture

Introduction With the new Office 365 sign-in experience you can capture the username entered at the O365 login page! This has been a frequent request from Office 365 users federated via SAML so us...
Published Aug 10, 2017
Version 1.0
BIG-IP Access Policy Manager (APM)
irules
security
Jad_Tabbara__J1's avatar
Jad_Tabbara__J1
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Mar 06, 2020

Hello Graham,

 

Thanks for you article.

 

In your case F5 is IDP, check now the use case where F5 is SP, it is easier because Azure IDP support a "login_hint" as a query parameter. By adding it on F5 SAML Request it allows you to bypass the Azure Login Page.

 

https://devcentral.f5.com/s/articles/Bypass-Azure-Login-Page-by-adding-a-login-hint-in-the-SAML-Request?page=1

 

Regards