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ERR_TOO_MANY_REDIRECTS is displayed when accessing via Web Security Service.

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Article ID: 174033

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Updated On:

Products

Web Security Service - WSS

Issue/Introduction

SAML authentication by Azure AD does not work properly in Web Security Service(WSS)  if you enabled Office 365 Gatelet on WSS that is integrated with CloudSOC Office365 Gatelet.

The login screen is not displayed due to the following error as shown in the image.

saml.threatpulse.net redirected you too many times. (ERR_TOO_MANY_REDIRECTS)

Cause

For design reasons

Environment

SAML
Azure AD 
Web Security Service(WSS)
CloudSOC Office 365 Gatelet

Resolution

Please register microsoftonline.com into Auth Exemption on WSS Portal.

WSS Portal:
Service->Authentication->Authentication Policy->Global Exemptions
Source:Any
Destination:microsoftonline.com
Verdict:Bypass Authentication

After registration, the login screen is displayed normally.

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