User is authenticated on website using LDAP. How do I automatically authenticate the same user on another website using LDAP. The two websites are on the same domain but separate websites- they both authenticate against same LDAP store. Is an authentication token somehow passed from one to next? Or the credentials or something..? Sort of new to LDAP auth...
You can not use LDAP to achieve Single Sign On. LDAP is an 'authentication protocol' and a 'data model'.
You either need a proprietary mechanism or some standards based technology like OIDC or SAML.
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We have a scenario where we have to authenticate the user with LDAP server
Flow 1:
client --> application server --> LDAP server
In above flow the client enters LDAP credentials which comes to application server and then using python-ldap we can authenticate the user, straight forward. Since the user LDAP credentials comes to application server an organisation may not be willing for such flow for obvious reasons.
Flow 2:
client --> oauth2 --> LDAP server
Oauth scenario suites best here, since authentication of the user is responsibility of the oauth and application server do not need to know the user credentials.
Have anyone encountered such case, if yes, how you tackled it?
Is there are any Oauth client for LDAP free and paid ?
If you don't want user credentials to reach the Application server then what you need is a perimeter authentication. You need to have an external authentication provider , say Oracle Access Manager, that will perform the authentication and set a certain token in the request. The application server can assert this token and let user access resources. This model enables SSO as well.
The resources that require authorized access are configured as protected URLs in OAM.
When a user tries to access a protected resource he is challenged for credentials.
OAM authenticates the user against an LDAP directory(that is configured in OAM).
A token corresponding to the authenticated user is set in the request. Also an SSO cookie is set.
Application server (Weblogic) can assert (verify) this token and let the user access the resource.
Note: Oracle Access Manager supports oAuth as well.
Ory Hydra https://ory.sh/hydra might be what the original poster was asking for. This question is several years old now but in the interest of helping anyone else who sees this...check out Ory Hydra. It provides the OAuth2/OpenID parts and can be linked to an LDAP server behind the scenes.
canaille is a free and light OAuth2/OpenID service over a LDAP backend, written in python. (canaille developper here)
https://gitlab.com/yaal/canaille
How to authenticate with liferay by passing the parameters as user email and password. If authentication is success then I will redirect to different web web application.Actually i want to authenticate user without using sign in portlet.Is there any way we can hit a url and it gives a response text so we can identify that user is authenticated. i followed this link but i didn't get proper response.
Liferay integrates with a lot of different SSO (Single-Sign-On) systems on the market. Instead of reinventing the wheel, you should use one of those integrations. This way you're free to use whatever your SSO uses to authenticate the user and it will provide your user's identity to Liferay as well as to any other application.
For Liferay EE, you also have the option to make Liferay your "SSO" by utilizing the SAML plugin and creating Liferay into an IdP (Identity Provider) and by making your other application an SP (Service Provider).
The whole field of forwarding the identity of users has been solved and one shouldn't mock around with redirecting with any self-invented authentication scheme IMHO.
We have an application that checks against active directory for valid UN/PW combinations with a simple LDAP query. That query simply responds with a message of yes or now to validate the user. Unfortunatley we have no control over this application so can't make it a claims aware applicaiton which would provide AD access to the user.
Is there a way with SAML or something to log a user in to AD / ADFS with only their email address (UPN) so that we can then provide them access to other services on our domain?
Ultimately, we are going to use the token to SSO the users to an Office365 implementation that we have.
ADFS will authenticate against AD via several methods, one of them being username/password. You don't need your homegrown application.
We are running a website where users need to be authenticated from the SAP Enterprise Portal.
Scenario:
User logs in into SAP portal via SAML Authentication. This user can view a link in the Portal he can click the link and will be transferred to a website on another domain. This domain will receive the a "ticket" and the user will be able to login.
Information from a friend:
If you have a setup that uses SAML, there are mechanisms to transfer that session between domains that basically rely on passing a ticket through the URL to the client from the authentication server, and that ticket is then passed to the site you want to authenticate against, which can use that to establish the identity of the user with the authentication server and establish the session.
Question:
Is this possible in SAP? If so, can anyone provide me some documentation for this?
The normal scenarion for SSO between domain in SAML is based on relayance on the same IDP. This is a typical flow for a SSO with two domains.
Sign-on on domain1
User accesses domain1
User is forwarded to IDP for authentication.
User authenticates and a session is created at the IDP
User is redirected back to domain1 and gains access
Sign-on on domain2
User accesses domain2
User is forwarded to IDP for authentication.
The IDP already as a session for the user and is considered as authenticated
User is redirected back to domain2 and gains access
This way the uer does not need to authenticate the second time.
Basically I just want to know how does StackExchange's single signon system work?
In the SE network you need to login only once in one of the websites to be automatically logged in to the other sites upon visiting.
How should I implement such a feature in my own network of sites?
I assume it uses the cookie which resides on the user's browser and then authenticates it with the originating site. If it is legit then it logs the user in automatically.
You have to implement SAML or oauth2 to allow sso on your network.
In case of SAML your child websites will be service providers or resource servers.
While you need to setup and identity provider.
The sequence of events will be like this.
1. User hits a url of songs website, this site is resource server and does not handle authentication.
2.To authenticate resource server will construct a SAML authrequest and redirects to identity provider after signing it.
Idp verifies the signature after receiving authrequest.
3. User will be presented with a login form, user has to end login credentials.
4. After user authentication idp will generate a SAMl token and redirect back to resource server.
5. Resource server will extract identity information from SAML token, resource server will login the user with session or cookie.
Depends upon which technology you are working in i have implemented it in php using simplesamlphp.