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Oracle Access Manager 11g R2PS3 (OAM 11.1.2.3) - OAM Federation throws AmRuntimeException: Exception in parsing Obrareq request (Doc ID 2718514.1)

Last updated on OCTOBER 28, 2020

Applies to:

Oracle Access Manager - Version 11.1.2.3.180717 and later
Information in this document applies to any platform.

Symptoms

Customer has an application which go to a custom login page and after the credential and user is validated the browser redirect to the Obrareq with a different port (initial port is <FRONT-END-PORT>) and then going to OAM is being redirect to the OHS <PROXY-PORT> and causing error -

[2020-10-01T19:11:09.995-04:00] [wls_oam2] [ERROR] [OAM-00002] [oracle.oam.binding] [tid: [ACTIVE].ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'] [userId: <anonymous>] [ecid: <ECID>] [APP: oam_server#11.1.2.0.0] Error occurred while handling the request.[[
oracle.security.am.common.utilities.exception.AmRuntimeException: Exception in parsing Obrareq request
at oracle.security.am.proxy.oam.pbl.plugin.OAMProxyEngine.handleOAMLoginRequest(OAMProxyEngine.java:451)
at oracle.security.am.engines.enginecontroller.OAMEngineController.processEvent(OAMEngineController.java:213)

 

If on the browser the port is deleted and then re-submit the request again, user is being sent to the landing page.

 https://<FRONT-END-HOST>:<FRONT-END-PORT>/oam/server/auth_cred_submit → https://<FRONT-END-HOST>:<PROXY-PORT>/obrar.cgi?... 

OHS is in front of an F5 and proxing OAM.

<REGION> ← <LB-PORT> → NBL ← <LB-PORT> → F5 ← <PROXY-PORT> → THIRD-PARTY ← <PROXY-PORT> → OHS WebGate ← <OAM-PORT> → on Prem OAM

Cause

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In this Document
Symptoms
Cause
Solution


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