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Red Hat Security Advisory 2016-2808-01

Red Hat Security Advisory 2016-2808-01
Posted Nov 17, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-2808-01 - This release of Red Hat JBoss Web Server 2.1.2 serves as a replacement for Red Hat JBoss Web Server 2.1.1. It contains security fixes for the Tomcat 7 component. Only users of the Tomcat 7 component in JBoss Web Server need to apply the fixes delivered in this release. Security Fix: A CSRF flaw was found in Tomcat's the index pages for the Manager and Host Manager applications. These applications included a valid CSRF token when issuing a redirect as a result of an unauthenticated request to the root of the web application. This token could then be used by an attacker to perform a CSRF attack.

tags | advisory, web, root
systems | linux, redhat
advisories | CVE-2015-5346, CVE-2015-5351, CVE-2016-0706, CVE-2016-0714, CVE-2016-0763, CVE-2016-3092
SHA-256 | 6aabba5392b13a85b44e0e196d13a81b259818172e29bc8bb40c46530f9dfb13

Red Hat Security Advisory 2016-2808-01

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

Synopsis: Important: Red Hat JBoss Web Server 2.1.2 security update for Tomcat 7
Advisory ID: RHSA-2016:2808-01
Product: Red Hat JBoss Web Server
Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-2808.html
Issue date: 2016-11-17
CVE Names: CVE-2015-5346 CVE-2015-5351 CVE-2016-0706
CVE-2016-0714 CVE-2016-0763 CVE-2016-3092
=====================================================================

1. Summary:

An update is now available for Red Hat JBoss Web Server.

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.

2. Description:

This release of Red Hat JBoss Web Server 2.1.2 serves as a replacement for
Red Hat JBoss Web Server 2.1.1. It contains security fixes for the Tomcat 7
component. Only users of the Tomcat 7 component in JBoss Web Server need to
apply the fixes delivered in this release.

Security Fix(es):

* A CSRF flaw was found in Tomcat's the index pages for the Manager and
Host Manager applications. These applications included a valid CSRF token
when issuing a redirect as a result of an unauthenticated request to the
root of the web application. This token could then be used by an attacker
to perform a CSRF attack. (CVE-2015-5351)

* It was found that several Tomcat session persistence mechanisms could
allow a remote, authenticated user to bypass intended SecurityManager
restrictions and execute arbitrary code in a privileged context via a web
application that placed a crafted object in a session. (CVE-2016-0714)

* A security manager bypass flaw was found in Tomcat that could allow
remote, authenticated users to access arbitrary application data,
potentially resulting in a denial of service. (CVE-2016-0763)

* A denial of service vulnerability was identified in Commons FileUpload
that occurred when the length of the multipart boundary was just below the
size of the buffer (4096 bytes) used to read the uploaded file if the
boundary was the typical tens of bytes long. (CVE-2016-3092)

* A session fixation flaw was found in the way Tomcat recycled the
requestedSessionSSL field. If at least one web application was configured
to use the SSL session ID as the HTTP session ID, an attacker could reuse a
previously used session ID for further requests. (CVE-2015-5346)

* It was found that Tomcat allowed the StatusManagerServlet to be loaded by
a web application when a security manager was configured. This allowed a
web application to list all deployed web applications and expose sensitive
information such as session IDs. (CVE-2016-0706)

3. Solution:

Before applying the update, back up your existing Red Hat JBoss Web Server
installation (including all applications and configuration files).

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/):

1311076 - CVE-2015-5351 tomcat: CSRF token leak
1311082 - CVE-2016-0714 tomcat: Security Manager bypass via persistence mechanisms
1311085 - CVE-2015-5346 tomcat: Session fixation
1311087 - CVE-2016-0706 tomcat: security manager bypass via StatusManagerServlet
1311093 - CVE-2016-0763 tomcat: security manager bypass via setGlobalContext()
1349468 - CVE-2016-3092 tomcat: Usage of vulnerable FileUpload package can result in denial of service

5. References:

https://access.redhat.com/security/cve/CVE-2015-5346
https://access.redhat.com/security/cve/CVE-2015-5351
https://access.redhat.com/security/cve/CVE-2016-0706
https://access.redhat.com/security/cve/CVE-2016-0714
https://access.redhat.com/security/cve/CVE-2016-0763
https://access.redhat.com/security/cve/CVE-2016-3092
Security Impact: https://access.redhat.com/security/updates/classification/#important
Download: https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=webserver&downloadType=distributions&version=2.1.2

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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