APM Configuration to Support Duo MFA using iRule

Overview BIG-IP APM has supported Duo as an MFA provider for a long time with RADIUS-based integration. Recently, Duo has added support for Universal Prompt that uses Open ID Connect (OIDC) protoco...
0151T0000040JicQAE.png
Updated Mar 01, 2025
Version 8.0
BIG-IP
BIG-IP Access Policy Manager (APM)
big-ip apm
duo
iRules
mfa
OAuth Client
security
Hardeep_Kaur's avatar
Ret. Employee
I document user guides, online help, and release notes for F5's BIG-IP APM, F5 Access Apps, and Edge Client products. I also work on Access Guided Configuration online help and compatibility matrices.
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delv3chio's avatar
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Joined May 20, 2019
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Jerrod_Kimbler's avatar
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Vintage F5 Employee, Est. 2006
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enzo's avatar
enzo
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May 19, 2022

I know this is an old post but was curious if anyone has run into this issue.  My APM policy was failing at  the OAuth branch rule expression. To fix it I had to change the OAuth branch rule

Expression: expr {[mcget {session.oauth.client.last.authresult}] == 1}  <-- Changed to 0

Is this a valid fix or im I bypassing any security controls by chaging this branch Expression

 

Thank You

Enzo