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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: Red Hat Single Sign-On security update
Advisory ID:       RHSA-2016:2945-01
Product:           Red Hat Single Sign-On
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2016-2945.html
Issue date:        2016-12-13
CVE Names:         CVE-2016-8609 
=====================================================================

1. Summary:

A security update is now available for Red Hat Single Sign-On 7.0 from the
Customer Portal.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Description:

Red Hat Single Sign-On 7.0 is a standalone server, based on the Keycloak
project, that provides authentication and standards-based single sign-on
capabilities for web and mobile applications.

This asynchronous patch is a security update for Red Hat Single Sign-On
7.0.

Security Fix(es):

* It was found that Keycloak 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. (CVE-2016-8609)

Red Hat would like to thank Hiroyuki Wada of Nomura Research Institute, Ltd
for reporting this issue.

3. Solution:

The References section of this erratum contains a download link (you must
log in to download the update). Before applying this update, back up your
existing Red Hat Single Sign-On installation.

4. Bugs fixed (https://bugzilla.redhat.com/):

1386729 - CVE-2016-8609 keycloak: account hijacking via auth code fixation

5. References:

https://access.redhat.com/security/cve/CVE-2016-8609
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=core.service.rhsso&downloadType=securityPatches&version=7.0

6. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2016 Red Hat, Inc.
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