Authorization bypass
CVE: CVE-2016-2141
Component: JGroups
Severity: Critical
CVSS v3: 9.8/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Release date: 2016-06-23T00:00:00+00:00

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.


Remediation:
Before applying this update, make sure all previously released errata
relevant to your system have been applied. Also, back up your existing Red
Hat JBoss Enterprise Application Platform 5 installation (including all
applications and configuration files).

The JBoss server process must be restarted for the update to take effect.

This update is available via the Red Hat Network. Details on how to use the
Red Hat Network to apply this update are available at
https://access.redhat.com/articles/11258
Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258
Before applying this update, back up your existing Red Hat JBoss Enterprise Application Platform installation and deployed applications.

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The JBoss server process must be restarted for the update to take effect.
Before applying this update, back up your existing Red Hat JBoss Enterprise Application Platform installation and deployed applications.

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The JBoss server process must be restarted for the update to take effect.
Before applying this update, back up your existing Red Hat JBoss Enterprise Application Platform installation and deployed applications.

The JBoss server process must be restarted for the update to take effect.

For details on how to apply this update, refer to:
https://access.redhat.com/articles/11258
Before applying this update, back up your existing Red Hat JBoss Enterprise Application Platform installation and deployed applications.

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The JBoss server process must be restarted for the update to take effect.
The References section of this erratum contains a download link (you must
log in to download the update). Before applying the update, back up your
existing installation, including all applications, configuration files,
databases and database settings, and so on.

It is recommended to halt the server by stopping the JBoss Application
Server process before installing this update; after installing the update,
restart the server by starting the JBoss Application Server process.
The References section of this erratum contains a download link (you must
log in to download the update). Before applying the update, back up your
existing installation, including all applications, configuration files,
databases and database settings, and so on.

It is recommended to halt the server by stopping the JBoss Application
Server process before installing this update; after installing the update,
restart the server by starting the JBoss Application Server process.
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 JBoss Data Grid installation.
The References section of this erratum contains a download link (you must log in to download the update). Before applying the update, back up your existing Red Hat JBoss Data Virtualization installation (including its databases, applications, configuration files, and so on).

Note that it is recommended to halt the Red Hat JBoss Data Virtualization server by stopping the JBoss Application Server process before installing this update, and then after installing the update, restart the Red Hat JBoss Data Virtualization server by starting the JBoss Application Server process.
Before applying this update, back up your existing Red Hat JBoss Enterprise Application Platform installation and deployed applications.

The JBoss server process must be restarted for the update to take effect.
Before applying this update, make sure all previously released errata
relevant to your system have been applied. Also, back up your existing Red
Hat JBoss Enterprise Application Platform 5 installation (including all
applications and configuration files).

The JBoss server process must be restarted for the update to take effect.
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 JBoss Enterprise Application Platform installation and deployed applications.

The JBoss server process must be restarted for the update to take effect.
The References section of this erratum contains a download link (you must
log in to download the update).
The References section of this erratum contains a download link (you must
log in to download the update). Before applying the update, back up your
existing installation, including all applications, configuration files,
databases and database settings, and so on.

It is recommended to halt the server by stopping the JBoss Application
Server process before installing this update; after installing the update,
restart the server by starting the JBoss Application Server process.
The References section of this erratum contains a download link (you must log in to download the update). Before applying the update, back up all applications deployed on JBoss Enterprise Portal Platform, along with all customized configuration files, and any databases and database settings.

The JBoss server process must be restarted for the update to take effect.
The References section of this erratum contains a download link (you must
log in to download the update). Before applying the update, back up your
existing Red Hat JBoss SOA Platform installation (including its databases,
applications, configuration files, and so on).

Note that it is recommended to halt the Red Hat JBoss SOA Platform server
by stopping the JBoss Application Server process before installing this
update, and then after installing the update, restart the Red Hat JBoss SOA
Platform server by starting the JBoss Application Server process.
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.
Please refer to https://access.redhat.com/articles/2360521 for more information.