(Red Hat Issues Fix) Red Hat JBoss XML External Entity Processing Flaw Lets Remote Users Obtain Potentially Sensitive Information
SecurityTracker Alert ID: 1036759|
SecurityTracker URL: http://securitytracker.com/id/1036759
(Links to External Site)
Date: Sep 9 2016
Disclosure of system information, Disclosure of user information|
Fix Available: Yes Vendor Confirmed: Yes |
A vulnerability was reported in Red Hat JBoss. A remote user can conduct XML external entity attacks to obtain files on the target system.|
A remote user can supply specially crafted XML External Entity (XXE) data to the target interface to read files on the target system with the privileges of the target service.
The vulnerability resides in the Java Standard Tag Library (JSTL) component.
The Apache Software Foundation and David Jorm of IIX reported this vulnerability.
A remote user can read files on the target system with the privileges of the target service.|
Red Hat has issued a fix.|
The Red Hat advisories are available at:
Vendor URL: rhn.redhat.com/errata/RHSA-2016-1841.html (Links to External Site)
Access control error|
|Underlying OS: Linux (Red Hat Enterprise)|
|Underlying OS Comments: 6, 7|
This archive entry is a follow-up to the message listed below.|
Source Message Contents
Subject: [RHSA-2016:1841-01] Important: JBoss Enterprise Application Platform 7.0.2|
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Red Hat Security Advisory
Synopsis: Important: JBoss Enterprise Application Platform 7.0.2
Advisory ID: RHSA-2016:1841-01
Product: Red Hat JBoss Enterprise Application Platform
Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-1841.html
Issue date: 2016-09-08
CVE Names: CVE-2015-0254 CVE-2016-4993 CVE-2016-5406
Updated packages that provide Red Hat JBoss Enterprise Application Platform
7.0.2, fix several bugs, and add various enhancements are now available
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.
Red Hat JBoss Enterprise Application Platform 7 is an application server
that serves as a middleware platform and is built on open standards and
compliant with the Java EE 7 specification.
This release serves as a replacement for Red Hat JBoss Enterprise
Application Platform 7.0.1. It includes bug fixes and enhancements. Refer
to the JBoss Enterprise Application Platform 7.0.2 Release Notes linked to
in the References section for information about the most significant bug
fixes and enhancements included in this release.
* It was found that the Java Standard Tag Library (JSTL) allowed the
processing of untrusted XML documents to utilize external entity
references, which could access resources on the host system and,
potentially, allowing arbitrary code execution. (CVE-2015-0254)
* It was reported that EAP 7 Application Server/Undertow web server is
vulnerable to the injection of arbitrary HTTP headers, and also response
splitting, due to insufficient sanitization and validation of user input
before the input is used as part of an HTTP header value. (CVE-2016-4993)
* The domain controller will not propagate its administrative RBAC
configuration to some slaves. An attacker could use this to escalate their
Red Hat would like to thank Calum Hutton (NCC Group) and Mikhail Egorov
(Odin) for reporting CVE-2016-4993. The CVE-2016-5406 issue was discovered
by Tomaz Cerar (Red Hat).
Before applying this update, back up your existing Red Hat JBoss Enterprise
Application Platform installation and deployed applications.
The References section of this erratum contains a download link (you must
log in to download the update).
The JBoss server process must be restarted for the update to take effect.
4. Bugs fixed (https://bugzilla.redhat.com/):
1198606 - CVE-2015-0254 jakarta-taglibs-standard: XXE and RCE via XSL extension in JSTL XML tags
1359014 - CVE-2016-5406 EAP7 Privilege escalation when managing domain including earlier version slaves
The Red Hat security contact is <email@example.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2016 Red Hat, Inc.
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