Description
It was found that the keycloak before 2.3.0 did not implement authentication flow correctly. An attacker could use this flaw to construct a phishing URL, from which he could hijack the user's session. This could lead to information disclosure, or permit further possible attacks.
Remediation
References
http://rhn.redhat.com/errata/RHSA-2016-2945.html
http://www.securityfocus.com/bid/95070
http://www.securitytracker.com/id/1037460
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8609