Customer is IDP and is receiving an authnrequest (SAMLRequest) via POST binding. The request is failing with the following errors logged in the FWSTrace.log:
[10/30/2020][10:05:01][19164][44144][26557505-b32738e2-43e2bc12-9945ed61-9f46318e-b0][SSO.java][doGet][No SAMLRequest or SPID parameter in request to SAML2 Single Sign-On Service]
[10/30/2020][10:05:01][19164][44144][26557505-b32738e2-43e2bc12-9945ed61-9f46318e-b0][SSO.java][doGet][Ending SAML2 Single Sign-On Service request processing with HTTP error 400]
Release : ALL
Component : SITEMINDER - FEDERATION
The SAMLRequest was not properly encoded and could not be decoded using third-party tools.
Ask the SP to correct the encoding. If third-party decoders cannot decode the SAMLRequest, neither will Siteminder be able to.
Third-party SAML Decoder:
https://www.ssocircle.com/en/1203/saml-request-online-decoder-encoder/