I have a webserver which is using Jetty underneath along with SPNEGO authenticator and login service. I am using Firefox to connect to this webserver and can see that authentication is happening properly. But the issue is for each request from web client authentication is happening again and again, rather than only at first request. Does Jetty store any information to differentiate between an authenticated and unauthenticated user ? If not then can someone please help to recommend how I can achieve that? Also what it means to logout a user already authenticated using SPNEGO ?
The problem is not SPNEGO authentication but how you are managing session.
Once authenticated create a HTTP session and add the user's details to the session, and using a Filter check that there is a valid session is present if not do the authentication else skip the authentication.
Related
In one of my developments (using kerberos authentication to loginalong with HtmlUnit) its working fine in all cases , facing an issue after hitting SSO authenticated links where the SAML2 used.
I have searched all the way there is no proper explanation to get more info on SAML2 authentication for SSO secured pages.
I`m completely new for SSO authentication and SAML2 authentication,is there any separate API for this? help me to know on more on this.
Could you please help or suggest what is the best process to pass the user/password to get the authentication.
Thanks
Authentication itself is not part of SAMLv2 specification. SAMLv2 defines the exchange of information about authenticated subjects. Authentication happens at the SAMLv2 IdP. How this happens in detail is up to the IdP.
It could be that the following is possible in your case ...
Use HTTP POST to send credentials to the Login URL of the IdP. Capture the session cookie returned by the IdP. Send HTTP request to the endpoint of the IdP which allows so called IdP-initiated SSO and specify 'HTTP Redirect Binding' and the Meta Alias of the SP (this is the SSO-enabled app from SAML point of view). The IdP would return a 302 , follow the redirect, the SP should consume the SAML assertion included as a query parameter and you should be able to access the SSO-enabled app.
You may read SAMLv2 tech overview (http://docs.oasis-open.org/security/saml/Post2.0/sstc-saml-tech-overview-2.0-cd-02.html) to get some idea.
I have a Java+Spring application.
Assuming the browser settings are all correct and site is allowed, is it possible to retrieve logged in AD user credentials from an http request? Which fields are they? AUTH_USER? Are they coming with every request (GET, POST, PUT, DELETE etc).
I've successfully integrated AD authentication, with the user manually typing in their AD user and password. Now i am wondering, can login be done more automatically, retrieving credential from a browser's request?
I don't think this is possible. If you want an elegant solution instead of checking each user/password in your filter for example, have an eye to JWT. You could encapsulate your AD user in it and send the token to the client, itself sending back to you in a header.
The counterpart is that you have to integrate all the jwt part, as long as JWT is not native in Spring. I'm currently working on a personal project to integrate jwt and that's not so easy for someone starting with Spring Security.
This link seems ok for Spring
I am interested in opportunity to make server side http request to web server implementing same SSO authentication.
So assume I have: hello.org and hey.com that point to the same SSO server.
After I logged in hello.org I obtained:
OAuth2Authentication authenticationObject = (OAuth2Authentication) principal;
Now I would like to fire http request from hello.org server to hey.com
Request.Get("hey.com/get_data").execute().returnContent().asString();
But I hit authentication error code 401.
How can I retrieve all required tokens from OAuth object and make my request be authenticated?
the site hello.org is not supposed to call hey.com using the token provided to the client calling hello.org. That token is to be seen as a contract between the authenticated user and hello.org.
The hello.org server needs it's own client that is authorized to access hey.com.
So one common way to solve this is to create a "hello.org to hey.com" client with either key or certificate authentication against the sso provider, and then call hey.com with the token provided there, and then relay the info back to the user of hello.org.
Now that is if you want to call hey.com via hello.org and the user is unaware that hey.com was ever involved in the information provision.
If you on the other hand want to let the user access both hello.org and hey.com by signing in via hello.org you should check out either OpenId or SAML since bare bones Oauth isn't really designed for SSO or resource sharing.
I am using the spring-security-saml2 library to authenticate my user against a SAML IdP. It works well, but now I would like to only CHECK if a user is authenticated with that IdP (and avoid an automatic forward to ask the user for credentials).
The use case is that I want to add other custom authentication mechanisms, and only forward to a login page once ALL mechanisms failed. So I'd like to check for an active SAML session, if not then check via OAuth, ..., if not authenticated anywhere then forward the user to a login page.
Is this possible with the spring-security-saml2 library as it is or would I have to fork / change it?
You can syncronize SAML sessions http://docs.oasis-open.org/security/saml/v2.0/saml-profiles-2.0-os.pdf.
But will be easier if you make your own session (with a small timeout and you reset the timeout each request) after your get redirected from the idp (auhtn request response success)
One can add the isPassive attribute to a SAML Authentication Request to obtain the behaviour that you're looking for. This is controlled by calling setPassive(true) on the WebSSOProfileOptions object, as shown in https://github.com/spring-projects/spring-security-saml/blob/master/core/src/test/java/org/springframework/security/saml/websso/WebSSOProfileHoKImplTest.java#L263.
I need to use WSO2 Identity server with SAML for SSO for my internal application. I came across this beautiful
SAML2.0 SSO with the WSO2 Identity Server article
But i have two questions on this article which i am not sure how works
1) In 5th step it is said "Now the user is being redirected to IDP again. Now the IDP realize this user is already authenticated hence it would issue
a SAML Assertion without prompting any authentication challenge."
How will the IDP realize that user is already authenticated ?
As per my understanding it must be done based on session. Does it mean when authentication request goes from service provider 1 to Identity server (SP1 redirects the request to IS thru browser ), IS will first authenticate the credentials and if successful keep the user object under session.
Now when second authentication request goes to IS thru SP2, same session ID is sent (provided request is sent from another of same browser), IS fins already a user object associated with this session, so trust him. Is this understanding correct?
2)In step 2 it is said that " Now the SP1 can validate the SAML Assertion issued by IDP and let the user log-in. "
what is the specific field/value (under SAML response sent by IP) , SP1 will verify?
3) Where user credentials are stored. Is it on IS side or Service provider side?
Just explain how it works with WSO2IS 5.0.0
When user is authenticated to IDP by providing credentials. WSO2IS creates an authenticated session for user and cookie with is associated with the authenticated session set in to the user's browser. Cookie name would be commonAuthId. you can also find it in your browser once you are authenticated with WSO2IS using SSO. Then user is trying to access another SP using same browser, cookie would be sent in to the WSO2IS and it identifies that there is an authenticated session related to the cookie.
Usually, SP validates the SAML2 Response and Assertion. There are several validations that you can do. But most common would be
Signature of the SAML2 Response and SAML2 Assertion
Validity period SAML2 Response and SAML2 Assertion.
Audience restriction validation in SAML2 Assertion
Destination url and Recipient value
Normally Username would be extracted from the Subject identifier value. Also there may be attributes in the attribute statement, which SP can retrieve and do some validation over them as well.
End users are authenticated to the IDP. So credentials must be in IDP not with the SP. It is one of idea of SSO. Maintains the credentials in one place. WSO2IS is default shipped with LDAP based user store. Therefore end user credentials are stored in the LDAP server. However WSO2IS can be deployed with any existing user stores that you like