I have configured multiple service providers which provider OAuth2.0 Authorization which use WSO2 as the identity provider. When I login to one of these service providers, I am successfully logged into the application. When I visit the other service provider, I am logged in as well. I have a few questions about this.
Is this considered SSO, as I am granted sign on between all my Service Providers after logging into one?
How does WSO2 IS know I was logged in to another Service Provider? Does it work by session cookies?
Thanks in advance!
Answering Q1 Yes. That can be considered as SSO but may need to combine openid connect with oauth2 authorization to get end user attributes to service provider
Answering to Q2 commonAuthId cookie will be used to handle authenticated session between multiple tabs in same browser
Related
Is SAML an authentication mechansim. ? I have seen this being written in many places.
As per my understanding SAML is not an authentication mechanism but a way to exchange authentication and authorization data between a service provider and an identity provider. ?
Both Service provider and identity provider have to be SAML compliant or basically understand SAML to take part.
Authentication can be done by any means like oAuth, Form etc. and then SAML exchange happens.
Best Regards,
Saurav
Actually SAML is a internet standards based technology to achieve web-based single on.
The actual authentication, which happens at the SAML IdP is out of scope of the specification.
However sometimes implementors do no accurately distinguish between SSO and authentication.
Chapter 1 from SAML Technical Overview, a document published in 2008 and still a good read:
The Security Assertion Markup Language (SAML) standard defines a
framework for exchanging security information between online business
partners.
...and then Chapter 4 in the same doc
SAML consists of building-block components that, when put together,
allow a number of use cases to be supported. The components
primarily permit transfer of identity, authentication, attribute, and
authorization information between autonomous organizations that have
an established trust relationship
SAML (Security Assertion Markup Language) is an identity federation protocol.
(1) Traditionally a web application utilizes a local data storage (such as MySQL which is used to store username/password credentials) to accomplish the login authentication.
On the other hand, a web application can leverage a third-party SAML Identity Provider (IdP) to accomplish the login authentication if the web application has been integrated with a SAML Service Provider (SP).
(2) Usually a SAML IdP utilizes identity repository (such as OpenLDAP) to provide identity authentication for a SAML SP-enabled web application.
(3) A web application, which has been integrated with a SAML SP, outsources login authentication to a SAML IdP.
Without loss of generality, we assume that the SAML IdP has been configured with OpenLDAP.
A typical SAMP SP-intitiated authentication procedure can be described below.
(I) A user launches a web browser to access a SAML SP-enabled web application.
(II) The user is redirected to a SAML IdP which will prompt username/password login screen.
SAML SP sends a SAML request to SAML IdP.
(III) The user submits the username/password credential.
(IV) The SAML IdP leverages OpenLDAP to validate the username/password credential.
(V) The user is redirected back and logged in to the web application if the user has been authenticated by OpenLDAP successfully.
SAML IdP sends a SAML response token to federate the user identity (such as username) to SAML SP-enabled web application.
(4) How to build and run Shibboleth SAML IdP and SP using Docker container demonstrates how a SAML IdP utilizes OpenLDAP to provide identity authentication and then federates the user identity (such as username) to a SAML SP-enabled web application, thus accomplishing the login authentication for the web application.
I'm trying to authenticate users with the SAML protocol.
So far I have two applications in two different identity providers (Auth0 and OneLogin) to test. I also have my service provider.
What I'm trying to do is authenticate users without redirecting them to any Identity Provider login form.
Something like this:
The user tries to log in to my application (made in React)
My server provider receives the request made by the user and sends
the credentials (username and password) to an identity provider
using the SAML protocol.
The identity provider validates the credentials, if they are
correct, return a SAML assertion to my server provider; otherwise,
it will return an error.
Depends on the identity provider's response if the content is sent
to the user or not.
I know that it is not the intended use of SAML, but I want to know if there is a way to do it and how it will be possible.
Any help or advice will be well received, thank you.
That's not how SAML works and I'm not aware of any SAML identity providers that accept the user's name and password.
It is possible to include the user's name in the SAML authn request sent to the identity provider but there's no provision for including a password.
I think there are a number of security considerations if you were to prompt a user for their credentials for one web site (ie the identity provider) at a different web site (ie service provider).
Using SAML SSO, if the user isn't already authenticated at the identity provider, it will prompt the user to login.
I am using in-memory DB for storing user details in WSO2 Identity server. I create couple of users via UI and now I want to authenticate those user using some external application.
Is there any available WSO2 service which takes User credentials and authenticate based on the details provided? I saw few articles where they mainly talking about User Stores. But there, I think, they directly connect to DB to compare the credentials.
There are multiple ways to authenticate a user from Identity Server. Easiest way is that you can call the admin service (SOAP service) for authentication (RemoteUserStoreManagerService/authenticate). Or you can create a OAuth application inside the IS and use resource owner grant type to pass the credentials and authenticate.
You can find admin service related information from here [1] and password grant related information from here [2]
Is there any available WSO2 service which takes User credentials and
authenticate based on the details provided?
I believe we've misused the Token API service ( /token with password OAuth profile) to request an OAuth code and the WSO2IS effectviely validates the user's credentials.
I suggest your application would stick to some authentication and authorization standards supported by the WSO2IS, such as OAuth 2.0 or SAML.
Please note I am new to the applications I am mentioning so I might use the terminology incorrectly. I've added a few diagrams to explain myself as best I could.
I am trying to setup a web service authentication policy in APIMAN (which uses Keycloak internally)
So far I know the Identity Provider (OpenAM) I created in Keycloak is configured correctly since it is working on the Login page (see image 1 below)
I have also successfully used an access_token via Keycloak's OpenID API to access a web service; but only if the user credentials are in Keycloak (as oppossed to OpenAM) (see image 2)
What I'd like to achieve is to authenticate this web service client via Keycloak but using the Identity Provider's credentials, but I do not know how to do this or if it is even possible. (see image 3)
Please note I also tried User Federation with the LDAP behind OpenAM and it worked correctly, but I would like to know if there is a way to do it via OpenAM.
The way you used keycloak and openam is quite unusual, however if i understand correctlly your question, you want keycloak to redirect the webservice request to openam, not ldap,
You can either:
configure openam as a identity provider using saml:
Openam would be your source of identity, and keyclaok would be his clients, you can do this by configuring keycloak: identity provider -> saml IDP -> and here you will place openam metadata.
configure openam as OIDC provider:
In keycloak you go to identity providers -> create -> oidc v1 provider -> and you will place your openam info.
As i said, its can be done, but its not the way its suppossed to be, openam and keycloak are both Access management software, they both do exactly the same thing, in your configuration keycloak play a role of an API gateway, which is not exactly what keycloak should be doing, you can get get rid of either one of the solutions, both can provide you the same functionnalities (OIDC, OAuth2, SAML, LDAP, ...)
We have requirement of build .NET based plugin/component for enabling Authentication against multiple IDP providers like ADFS, Azure AD and Shibboleth based on DB configuration. i.e, depending on the configurable parameter the anonymous user will be authenticated against any one of the IDPs like ADFS, Azure AD or Shibboleth IDP.
Our application URL ("https://www.contoso.com/ProcessToken.aspx") will be registered as RP Identifier in all of the 3 providers.
We won't make any web.config changes for any of the providers.
At run time, User will access common page(Proesstoken.aspx) who needs to get redirected to the any of the Login page URLs at the provider (ADFS, Shibboleth, Azure) for Authentication based on User Organization. (For ex: User A to ADFS, User B to Shibboleth etc)
After Successful authentication at the IDPs the user needs to get redirected by the provider (ADFS/ Shibboleth/ Azure AD) to the RP Url registered.
In the redirected page (ProcessToken.aspx), we are planning to get the security token and decipher the claims required.
The main intention is to decouple authentication away from application logic and it should be extendable to other providers in future.
PS: Considered options like OWIN Authentication Middle Tier, .NET Component etc.
Need guidance on How and where to start.
Have a look at IdentityServer 3 which implements this multi-auth scenario or OWIN : ASP.NET MVC application with multiple authentication options.
The main point is that you use NuGet to download all the protocols you require and than use OWIN to pull them all in via app.use.
You can configure ADFS to have Claims Provider Trust with the other IDP's Owin will acknowledge the authentication. The difficult part will be reading the attributes from the tokens. ADFS under the covers in conjunction with the Owin framework use ws-federation, I have not figured out how to read the SAML.
What gets confusing is that at one time the answer was WIF but now that 4.51 has been released, WIF was moved into Owin. The documentation for a multi-tenant application is sketchy at best.