Scott, I know that, but this is exactly how CSRF works. There are several simple ways to defend against CSRF and I am surprised that Keycloak, a security application, doesn’t utilize any. Thanks. Ilia *From:* Scott Rossillo [mailto:srossillo@smartling.com] *Sent:* Friday, February 19, 2016 6:15 PM *To:* Baskin, Ilia *Cc:* keycloak-user(a)lists.jboss.org *Subject:* Re: [keycloak-user] Is it CSRF vulnerability? Once you’ve authenticated with Keycloak, your application has an session id provided by Tomcat. This is why your requests are succeeding. If you examine your XHR requests, I’d assume the session id cookie is being passed to the server. Scott Rossillo Smartling | Senior Software Engineer srossillo(a)smartling.com On Feb 19, 2016, at 6:01 PM, Baskin, Ilia <ibaskine(a)microstrategy.com&gt; wrote: Hi, I am experimenting with Keycloak to evaluate its suitability for our application. Here is one of my experiments, that got me warried: I created a simple page (see attached), deployed it on Tomcat and registered it in Keycloak as confidential client. As you can see the page contains a button clicking on which executes simple XHR request. Notice that XHR request doesn’t contain Authorization header. On submission of my page URL I am redirected to Keycloak for authentication. After authentication I can submit XHR requests at will. Now I copied my page and deployed the copy on the same Tomcat as a different totally unsecured application. If I open this page in another browser tab and click on XHR button it will go through without any problem. It looks to me as a typical CSRF case. Am I missing something here? Thanks. Ilia <index.html>_______________________________________________ keycloak-user mailing list keycloak-user(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/keycloak-user

Thanks Scott, As far as I understand now the Chapter 22. Security Vulnerabilities of Keycloak documentation talks about the security of authentication workflow. I believe it will be nice if you added clear explanation of what security the adapters provide and don’t provide after authentication. Thanks Ilia *From:*Scott Rossillo [mailto:srossillo@smartling.com] *Sent:* Saturday, February 20, 2016 10:29 AM *To:* Baskin, Ilia *Cc:* keycloak-user(a)lists.jboss.org *Subject:* Re: [keycloak-user] Is it CSRF vulnerability? Are you using the Tomcat adapter? If so you have to configure Tomcats' CSRF filter. Once you've authenticated with an SSO server like Keycloak, you still have to use platform specific CSRF https://tomcat.apache.org/tomcat-7.0-doc/config/filter.html#CSRF_Preventi... On Fri, Feb 19, 2016 at 6:19 PM Baskin, Ilia <ibaskine(a)microstrategy.com <mailto:ibaskine@microstrategy.com>> wrote: Scott, I know that, but this is exactly how CSRF works. There are several simple ways to defend against CSRF and I am surprised that Keycloak, a security application, doesn’t utilize any. Thanks. Ilia *From:*Scott Rossillo [mailto:srossillo@smartling.com <mailto:srossillo@smartling.com>] *Sent:* Friday, February 19, 2016 6:15 PM *To:* Baskin, Ilia *Cc:* keycloak-user(a)lists.jboss.org <mailto:keycloak-user@lists.jboss.org> *Subject:* Re: [keycloak-user] Is it CSRF vulnerability? Once you’ve authenticated with Keycloak, your application has an session id provided by Tomcat. This is why your requests are succeeding. If you examine your XHR requests, I’d assume the session id cookie is being passed to the server. Scott Rossillo Smartling | Senior Software Engineer srossillo(a)smartling.com <mailto:srossillo@smartling.com> On Feb 19, 2016, at 6:01 PM, Baskin, Ilia <ibaskine(a)microstrategy.com <mailto:ibaskine@microstrategy.com>> wrote: Hi, I am experimenting with Keycloak to evaluate its suitability for our application. Here is one of my experiments, that got me warried: I created a simple page (see attached), deployed it on Tomcat and registered it in Keycloak as confidential client. As you can see the page contains a button clicking on which executes simple XHR request. Notice that XHR request doesn’t contain Authorization header. On submission of my page URL I am redirected to Keycloak for authentication. After authentication I can submit XHR requests at will. Now I copied my page and deployed the copy on the same Tomcat as a different totally unsecured application. If I open this page in another browser tab and click on XHR button it will go through without any problem. It looks to me as a typical CSRF case. Am I missing something here? Thanks. Ilia <index.html>_______________________________________________ keycloak-user mailing list keycloak-user(a)lists.jboss.org <mailto:keycloak-user@lists.jboss.org> https://lists.jboss.org/mailman/listinfo/keycloak-user _______________________________________________ keycloak-user mailing list keycloak-user(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/keycloak-user