integrate desktop app with SAML SSO

Question

integrate desktop app with SAML SSO

Paul R 1

Hi, I am working to add Azure SSO (SAML) to our desktop application. is there any documentation on how to do this? I have a lot of code put together already, that I thought would work, but the SAML assertion to login.microsoftonline.com always returns a 400 error with AADSTS750054: SAMLRequest or SAMLResponse must be present as query string parameters in HTTP request for SAML Redirect binding.

Shweta Mathur 30,296 Reputation points Microsoft Employee Moderator

2022-11-16T08:42:21.97+00:00

Hi @Paul R ,

Just checking in to see if the below answer helped. If this answers your query, please don’t forget to click "Accept the answer" and Up-Vote for the same, which might be beneficial to other community members reading this thread. And, if you have any further query do let us know.

Thanks,
Shweta
Shweta Mathur 30,296 Reputation points Microsoft Employee Moderator

2022-11-23T07:23:07.283+00:00

Hi @Paul R ,

Just checking in to see if the below answer helped. If this answers your query, please don’t forget to click "Accept the answer" and Up-Vote for the same, which might be beneficial to other community members reading this thread. And, if you have any further query do let us know.

Thanks,
Shweta
Marilee Turscak-MSFT 37,206 Reputation points Microsoft Employee Moderator

2022-12-09T01:11:27.467+00:00

Hello @Paul R ,

Just checking to see if you were able to get the answer you need? If the information provided was helpful to you, please Accept the answer so that others in the community with similar questions can more easily locate a solution.

Otherwise, please let me know if you have further questions!

Marilee

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Shweta Mathur 30,296 Reputation points Microsoft Employee Moderator

2022-11-16T08:42:21.97+00:00

Hi @Paul R ,

Just checking in to see if the below answer helped. If this answers your query, please don’t forget to click "Accept the answer" and Up-Vote for the same, which might be beneficial to other community members reading this thread. And, if you have any further query do let us know.

Thanks,
Shweta
Shweta Mathur 30,296 Reputation points Microsoft Employee Moderator

2022-11-23T07:23:07.283+00:00

Hi @Paul R ,

Just checking in to see if the below answer helped. If this answers your query, please don’t forget to click "Accept the answer" and Up-Vote for the same, which might be beneficial to other community members reading this thread. And, if you have any further query do let us know.

Thanks,
Shweta
Marilee Turscak-MSFT 37,206 Reputation points Microsoft Employee Moderator

2022-12-09T01:11:27.467+00:00

Hello @Paul R ,

Just checking to see if you were able to get the answer you need? If the information provided was helpful to you, please Accept the answer so that others in the community with similar questions can more easily locate a solution.

Otherwise, please let me know if you have further questions!

Marilee

Answer 1

Shweta Mathur 30,296 Microsoft Employee Moderator

Hi @Paul R ,

Thanks for reaching out and apologies for delayed response.

In this case Azure AD wasn’t able to identify the SAML request within the URL parameters in the HTTP request. This can happen if the application is not using HTTP redirect binding when sending the SAML request to Azure AD.

The application needs to send the SAML request encoded into the location header using HTTP redirect binding. You need to make sure that the properties mapping is correct.

Reference: https://learn.microsoft.com/en-us/troubleshoot/azure/active-directory/error-code-aadsts750054-saml-request-not-present

Thanks,
Shweta

----------------------------------------

Please remember to "Accept Answer" if answer helped you.

Paul R 1 Reputation point

2022-11-09T15:56:33.247+00:00

Hi, thanks for getting back to me, however I am still having problems. I think I will need to take a more stepped back approach.

I have doubts that our customer with the Azure environment has there SAML SSO configured correctly. Of course they won't let me have access to it,
and I also would have no idea how to set things up in Azure.

Does this give you any ideas what direction I should go?

I am sending SAML like: <EntityDescriptor> ...</>

but I get an error back saying: Expected to find an element 'AuthnRequest', 'Response', 'LogoutRequest' or 'LogoutResponse' from XML
Shweta Mathur 30,296 Reputation points Microsoft Employee Moderator

2022-11-10T06:32:22.577+00:00

Your SAML metadata is expecting AuthnRequest', 'Response', 'LogoutRequest' or 'LogoutResponse' in the XML file.

SAML metadata is an XML document which contains information necessary for interaction with SAML-enabled identity or service providers.

Refer example in 2.6 section mentioned here https://docs.oasis-open.org/security/saml/v2.0/saml-metadata-2.0-os.pdf for detailed XML file.

Thanks,
Shweta

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