SAMLException: InResponseToField of the Response doesn't correspond to sent message

Question

We are working on an application, which is protected with spring security saml.

Authentication works fine, but there is one problem with the following workflow in pr

Answer 1

We have solved our issue with following changes to the spring saml configuration:

1. In bean with id successRedirectHandler (org.springframework.security.web.authentication.SavedRequestAwareAuthenticationSuccessHandler) we set the defaultTargetUrl to the init-Action of our application (including all request parameters). This url will be automatically used in case of IdP initiated SSO.
2. In Bean with id contextProvider (org.springframework.security.saml.context.SAMLContextProviderLB) we set storageFactory to org.springframework.security.saml.storage.EmptyStorageFactory. This disables the check of the InResponseToField.

Answer 2

When you applicate generated an AuthnRequest, the request has an ID which your application somehow keeps. The corresponding response from IdP must have InResponseTo attribute set to that same ID value so that your application can verify that the response is meant to be for the request it sent.

However, when your user bookmarked the adfs link that contains request (www.login-server.com/adfs/ls/?SAMLRequest=xxx...), your application had totally forgotten about that request. In other word, it no longer kept the request ID somewhere and couldn't verify response.

The solution is to tell your users not to bookmark the www.login-server.com/adfs/ls/?SAMLRequest=xxx... link. Instead, they must bookmark a link in your application where it can generate a new request and send to ADFS.