I’ll show how to obtain a valid letsencrypt certificate for Apache on AWS EC2 Linux AMI and Namecheap as DNS provider. Running a private web server on AWS EC2 is easy. Managing it is not so easy. Having a valid TLS web server certificate from letsencrypt is one of the Read more…
SAP Help OAuth 2.0 Service Sample request in my Gitlab repo I’ll show how you can obtain an OAuth 2.0 token in SAP Cloud Platform (SCP) and manage it for authentication of apps. For the example detailed here, I am going to use an OAuth authorization grant of type client Read more…
To be able to log in to your SAML 2.0 IdP after a SP redirect, the SP must be configured in your IdP. While this sounds obvious, it can be confusing when you have several clients in your IdP and several IdP in your SP. For instance, you must ensure Read more…
Scenario A user authenticated against the SAML 2.0 IdP. The OAuth client is sending the SAML 2.0 Response containing the user assertions to the NetWeaver ABAP system. An error of type invalid grant is returned. Error message: { “error”: “invalid_grant”, “error_description”: “Provided authorization grant is invalid. Exception was Attribute ‘Recipient’ of element ‘SubjectConfirmationData’ is invalid. For more information, consult the kernel traces or the OAuth 2.0 trouble shooting SAP note 1688545” } Root cause The OAuth client is sending the SAML Read more…
Scenario You send a SAML Bearer Assertion to the OAuth token service of SAP Gateway. The Return type is 400 Bad Request. Error message { “error”: “invalid_grant”, “error_description”: “Provided authorization grant is invalid. Exception was Message Assertion is not signed. For more information, consult the kernel traces or the OAuth 2.0 trouble shooting SAP note 1688545” } Root cause The error message contains a description of the root cause for the HTTP 400: “Exception was Message Assertion is not Read more…
References: Token Endpoint for OAuth 2.0 SAML 2.0 Bearer Assertion flow for OAuth 2.0 SCN Discussion The last configuration to be done before you can access an OAuth 2.0 protected OData service is to activate the token issuer service. To be able to access a resource, your OAuth client needs Read more…
SAP Help: Setting Up an OAuth 2.0 Client In this step an OAuth client is added. This is the client that logs on to NW ABAP on behalf of the end user. For this, the OAuth client is using an SAP user to log on. This user was created earlier Read more…
Configure NameID After adding the OAuth IdP its status is set to disabled. It can only be enabled after the NameID format is configured. Tx: SAML2 In the tab trusted providers select OAuth 2.0 Identity Providers to see all OAuth IdPs. Select the IdP you want to activate and click Read more…
Scenario After you have enabled your NetWeaver ABAP system to be an SAML 2.0 Service Provider you want to download its metadata and get an error message: 403 Forbidden. Tx: SAML2 Call the SAML 2.0 configuration Web Dynpro app via transaction SAML2 and click on Metadata. Select what to include Read more…
I run an SAP NetWeaver ABAP Dev Edition system in a Virtual Box VM. Unfortunately, the update process for this software is to delete and reinstall after the DB license expires. Installing a new NW ABAP version is not overly complex: the SAP provided installer is easy to use and Read more…