(Red Hat Issues Fix for Red Hat Single Sign-On) JBoss Authentication Flaw in JGroups Lets Remote Users Bypass Security Restrictions on the Target System
SecurityTracker Alert ID: 1036409|
SecurityTracker URL: http://securitytracker.com/id/1036409
(Links to External Site)
Date: Jul 20 2016
Disclosure of system information, Host/resource access via network, Modification of system information|
Fix Available: Yes Vendor Confirmed: Yes |
A vulnerability was reported in JBoss. A remote user can bypass security controls on the target system. Red Hat Single Sign-On is affected.|
JGroups does not properly authenticate new nodes joining the cluster. A remote user can bypass security controls on the target system to send and receive messages within the cluster, obtain potentially sensitive information, or spoof messages.
Red Hat JBoss Enterprise Application Platform and Red Hat JBoss Data Grid are affected.
Dennis Reed (Red Hat) reported this vulnerability.
A remote user can bypass security controls on the target system.|
Red Hat has issued a fix for Red Hat Single Sign-On.|
The Red Hat advisory is available at:
Vendor URL: rhn.redhat.com/errata/RHSA-2016-1439.html (Links to External Site)
|Underlying OS: Linux (Red Hat Enterprise)|
This archive entry is a follow-up to the message listed below.|
Source Message Contents
Subject: [RHSA-2016:1439-01] Critical: Red Hat Single Sign-On security update|
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Red Hat Security Advisory
Synopsis: Critical: Red Hat Single Sign-On security update
Advisory ID: RHSA-2016:1439-01
Product: Red Hat Single Sign-On
Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-1439.html
Issue date: 2016-07-19
Updated on: 2016-07-20
CVE Names: CVE-2016-2141
A security update is now available for Red Hat Single Sign-On 7.0 from the
Red Hat Product Security has rated this update as having a security impact
of Critical. 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.
Red Hat Single Sign-On 7.0 is a standalone server, based on the Keycloak
project, that provides authentication and standards-based SSO capabilities
for web and mobile applications.
This asynchronous patch is a security update for JGroups package in Red Hat
Single Sign-On 7.0. More information about this vulnerability is available
* It was found that JGroups did not require necessary headers for encrypt
and auth protocols from new nodes joining the cluster. An attacker could
use this flaw to bypass security restrictions, and use this vulnerability
to send and receive messages within the cluster, leading to information
disclosure, message spoofing, or further possible attacks. (CVE-2016-2141)
The CVE-2016-2141 issue was discovered by Dennis Reed (Red Hat).
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/):
1313589 - CVE-2016-2141 Authorization bypass in JGroups
The Red Hat security contact is <firstname.lastname@example.org>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2016 Red Hat, Inc.
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