JBoss Seam Input Validation Flaw in Processing JBoss Expression Language Expressions Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID: 1024253|
SecurityTracker URL: http://securitytracker.com/id/1024253
(Links to External Site)
Date: Jul 27 2010
Execution of arbitrary code via network, User access via network|
Fix Available: Yes Vendor Confirmed: Yes |
A vulnerability was reported in JBoss Seam. A remote user can cause arbitrary code to be executed on the target user's system.|
A remote user can create HTML containing specially crafted parametrized JBoss Expression Language (EL) expressions that, when loaded by the target user, will execute arbitrary code on the target system. The code will run with the privileges of the target user.
Meder Kydyraliev of the Google Security Team reported this vulnerability.
A remote user can create HTML that, when loaded by the target user, will execute arbitrary code on the target user's system.|
The vendor has issued a fix.|
The vendor's advisory is available at:
Vendor URL: rhn.redhat.com/errata/RHSA-2010-0564.html (Links to External Site)
Input validation error|
|Underlying OS: Linux (Red Hat Enterprise)|
|Underlying OS Comments: 4, 5|
This archive entry has one or more follow-up message(s) listed below.|
Source Message Contents
Subject: [RHSA-2010:0564-01] Important: jboss-seam2 security update|
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Red Hat Security Advisory
Synopsis: Important: jboss-seam2 security update
Advisory ID: RHSA-2010:0564-01
Product: JBoss Enterprise Application Platform
Advisory URL: https://rhn.redhat.com/errata/RHSA-2010-0564.html
Issue date: 2010-07-27
CVE Names: CVE-2010-1871
Updated jboss-seam2 packages that fix one security issue are now available
for JBoss Enterprise Application Platform 4.3 for Red Hat Enterprise Linux
4 and 5.
The Red Hat Security Response Team has rated this update as having
important security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from the
CVE link in the References section.
2. Relevant releases/architectures:
JBoss Enterprise Application Platform 4.3.0 for RHEL 4 AS - noarch
JBoss Enterprise Application Platform 4.3.0 for RHEL 4 ES - noarch
JBoss Enterprise Application Platform 4.3.0 for RHEL 5 Server - noarch
The JBoss Seam Framework is an application framework for building web
applications in Java.
An input sanitization flaw was found in the way JBoss Seam processed
certain parametrized JBoss Expression Language (EL) expressions. If a
remote attacker could trick an authenticated JBoss Seam user into visiting
a specially-crafted web page, it could lead to arbitrary code execution.
Red Hat would like to thank Meder Kydyraliev of the Google Security Team
for responsibly reporting this issue.
Users of jboss-seam2 should upgrade to these updated packages, which
contain a backported patch to correct this issue. The JBoss server process
must be restarted for this update to take effect.
Before applying this update, make sure all previously-released errata
relevant to your system have been applied.
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
5. Bugs fixed (http://bugzilla.redhat.com/):
615956 - CVE-2010-1871 JBoss Seam / Seam2: Improper sanitization of parametrized JBoss EL expressions (ACE)
6. Package List:
JBoss Enterprise Application Platform 4.3.0 for RHEL 4 AS:
JBoss Enterprise Application Platform 4.3.0 for RHEL 4 ES:
JBoss Enterprise Application Platform 4.3.0 for RHEL 5 Server:
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
The Red Hat security contact is <firstname.lastname@example.org>. More contact
details at https://www.redhat.com/security/team/contact/
Copyright 2010 Red Hat, Inc.
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