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Red Hat Security Advisory 2016-2823-01

Red Hat Security Advisory 2016-2823-01
Posted Nov 29, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-2823-01 - This release of Red Hat JBoss BRMS 6.4.0 serves as a replacement for Red Hat JBoss BRMS 6.3.4, and includes bug fixes and enhancements, which are documented in the Release Notes of the patch linked to in the References section. Security Fix: It was found that several XML parsers used by XStream had default settings that would expand entity references. A remote, unauthenticated attacker could use this flaw to read files accessible to the user running the application server, and potentially perform other more advanced XXE attacks.

tags | advisory, remote, xxe
systems | linux, redhat
advisories | CVE-2016-3674, CVE-2016-7041, CVE-2016-8608
SHA-256 | 8dbab47734f09bd5535d85680eeb30af3067f1855c752393866e2574216e77c4

Red Hat Security Advisory 2016-2823-01

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

Synopsis: Moderate: Red Hat JBoss BRMS security update
Advisory ID: RHSA-2016:2823-01
Product: Red Hat JBoss BRMS
Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-2823.html
Issue date: 2016-11-28
CVE Names: CVE-2016-3674 CVE-2016-7041 CVE-2016-8608
=====================================================================

1. Summary:

An update is now available for Red Hat JBoss BRMS.

Red Hat Product Security has rated this update as having a security impact
of Moderate. 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:

This release of Red Hat JBoss BRMS 6.4.0 serves as a replacement for Red
Hat JBoss BRMS 6.3.4, and includes bug fixes and enhancements, which are
documented in the Release Notes of the patch linked to in the References
section.

Security Fix(es):

* It was found that several XML parsers used by XStream had default
settings that would expand entity references. A remote, unauthenticated
attacker could use this flaw to read files accessible to the user running
the application server, and potentially perform other more advanced XXE
attacks. (CVE-2016-3674)

* Drools Workbench contains the path traversal vulnerability. The
vulnerability allows a remote, authenticated attacker to bypass the
directory restrictions and retrieve arbitrary files from the affected host.
(CVE-2016-7041)

* JBoss BRMS 6 and BPM Suite 6 are vulnerable to a stored XSS via business
process editor. The flaw is due to an incomplete fix for CVE-2016-5398.
Remote, authenticated attackers that have privileges to create business
processes can store scripts in them, which are not properly sanitized
before showing to other users, including admins. (CVE-2016-8608)

Red Hat would like to thank Jonas Bauters (NVISO) for reporting
CVE-2016-7041. The CVE-2016-8608 issue was discovered by Kirill Gaevskii
(Red Hat).

3. Solution:

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).

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

1321789 - CVE-2016-3674 XStream: enabled processing of external entities
1375757 - CVE-2016-7041 Drools Workbench: Path traversal vulnerability
1386806 - CVE-2016-8608 Stored XSS in business process editor

5. References:

https://access.redhat.com/security/cve/CVE-2016-3674
https://access.redhat.com/security/cve/CVE-2016-7041
https://access.redhat.com/security/cve/CVE-2016-8608
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=brms&downloadType=distributions&version=6.4

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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