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Category:   Application (Web Server/CGI)  >   Red Hat JBoss Vendors:   Red Hat
(Red Hat Issues Fix for Red Hat JBoss) Apache Tomcat Bugs Let Remote Users Bypass Security Restrictions, Hijack Sessions, and Obtain Potentially Sensitive Information
SecurityTracker Alert ID:  1037315
SecurityTracker URL:  http://securitytracker.com/id/1037315
CVE Reference:   CVE-2015-5346, CVE-2015-5351, CVE-2016-0706, CVE-2016-0714, CVE-2016-0763   (Links to External Site)
Date:  Nov 18 2016
Impact:   Disclosure of system information, Disclosure of user information, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   Multiple vulnerabilities were reported in Apache Tomcat. A remote user can bypass security controls on the target system. A remote user can obtain potentially sensitive information on the target system. A remote user can hijack the target user's session. Red Hat JBoss is affected.

A remote user can re-use the session ID in a new request to conduct session fixation attacks and potentially hijack a target user's session [CVE-2015-5346]. Systems with an application configured to use the SSL session ID as the HTTP session ID are affected. Versions 7.0.5 to 7.0.65, 8.0.0.RC1 to 8.0.30, and 9.0.0.M1 are affected.

A remote user with access to the Manager or Host Manager applications can obtain a valid CSRF token during a redirect [CVE-2015-5351]. Versions 7.0.1 to 7.0.67, 8.0.0.RC1 to 8.0.31, and 9.0.0.M1 are affected.

An application can load the internal StatusManagerServlet to obtain a list of all deployed applications and a list of the HTTP request lines for all requests currently being processed [CVE-2016-0706]. Systems running untrusted web applications under a security manager are affected. Versions 6.0.0 to 6.0.44, 7.0.0 to 7.0.67, 8.0.0.RC1 to 8.0.30, and 9.0.0.M1 are affected.

A remote user can exploit session persistence mechanisms to bypass the SecurityManager and execute arbitrary code [CVE-2016-0714]. Systems running untrusted web applications under a security manager are affected. Versions 6.0.0 to 6.0.44, 7.0.0 to 7.0.67, 8.0.0.RC1 to 8.0.30, and 9.0.0.M1 are affected.

A web application can access the ResourceLinkFactory.setGlobalContext() public method and inject a malicious global context to disrupt other web applications or read and write data owned by other web applications [CVE-2016-0763]. Systems running untrusted web applications under a security manager are affected. Versions 7.0.0 to 7.0.67, 8.0.0.RC1 to 8.0.30, and 9.0.0.M1 to 9.0.0.M2 are affected.

Impact:   A remote user can bypass security controls on the target system.

A remote user can obtain potentially sensitive information on the target system.

A remote user can hijack the target user's session.

Solution:   Red Hat has issued a fix for Red Hat JBoss.

The Red Hat advisories are available at:

https://rhn.redhat.com/errata/RHSA-2016-2807.html
https://rhn.redhat.com/errata/RHSA-2016-2808.html

Vendor URL:  rhn.redhat.com/errata/RHSA-2016-2807.html (Links to External Site)
Cause:   Access control error, Input validation error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  6, 7

Message History:   This archive entry is a follow-up to the message listed below.
Feb 22 2016 Apache Tomcat Bugs Let Remote Users Bypass Security Restrictions, Hijack Sessions, and Obtain Potentially Sensitive Information



 Source Message Contents

Subject:  [RHSA-2016:2807-01] Important: Red Hat JBoss Web Server 2.1.2 security update for Tomcat 7

-----BEGIN PGP SIGNED MESSAGE-----
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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-2016:2807-01
Product:           Red Hat JBoss Web Server
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2016-2807.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 Enterprise Web Server 2 for
RHEL 6 and Red Hat JBoss Enterprise Web Server 2 for RHEL 7.

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. Relevant releases/architectures:

Red Hat JBoss Enterprise Web Server 2 for RHEL 6 Server - noarch
Red Hat JBoss Enterprise Web Server 2 for RHEL 7 Server - noarch

3. Description:

Apache Tomcat is a servlet container for the Java Servlet and JavaServer
Pages (JSP) technologies.

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)

4. Solution:

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

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

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

5. 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

6. Package List:

Red Hat JBoss Enterprise Web Server 2 for RHEL 6 Server:

Source:
tomcat7-7.0.54-23_patch_05.ep6.el6.src.rpm

noarch:
tomcat7-7.0.54-23_patch_05.ep6.el6.noarch.rpm
tomcat7-admin-webapps-7.0.54-23_patch_05.ep6.el6.noarch.rpm
tomcat7-docs-webapp-7.0.54-23_patch_05.ep6.el6.noarch.rpm
tomcat7-el-2.2-api-7.0.54-23_patch_05.ep6.el6.noarch.rpm
tomcat7-javadoc-7.0.54-23_patch_05.ep6.el6.noarch.rpm
tomcat7-jsp-2.2-api-7.0.54-23_patch_05.ep6.el6.noarch.rpm
tomcat7-lib-7.0.54-23_patch_05.ep6.el6.noarch.rpm
tomcat7-log4j-7.0.54-23_patch_05.ep6.el6.noarch.rpm
tomcat7-maven-devel-7.0.54-23_patch_05.ep6.el6.noarch.rpm
tomcat7-servlet-3.0-api-7.0.54-23_patch_05.ep6.el6.noarch.rpm
tomcat7-webapps-7.0.54-23_patch_05.ep6.el6.noarch.rpm

Red Hat JBoss Enterprise Web Server 2 for RHEL 7 Server:

Source:
tomcat7-7.0.54-23_patch_05.ep6.el7.src.rpm

noarch:
tomcat7-7.0.54-23_patch_05.ep6.el7.noarch.rpm
tomcat7-admin-webapps-7.0.54-23_patch_05.ep6.el7.noarch.rpm
tomcat7-docs-webapp-7.0.54-23_patch_05.ep6.el7.noarch.rpm
tomcat7-el-2.2-api-7.0.54-23_patch_05.ep6.el7.noarch.rpm
tomcat7-javadoc-7.0.54-23_patch_05.ep6.el7.noarch.rpm
tomcat7-jsp-2.2-api-7.0.54-23_patch_05.ep6.el7.noarch.rpm
tomcat7-lib-7.0.54-23_patch_05.ep6.el7.noarch.rpm
tomcat7-log4j-7.0.54-23_patch_05.ep6.el7.noarch.rpm
tomcat7-maven-devel-7.0.54-23_patch_05.ep6.el7.noarch.rpm
tomcat7-servlet-3.0-api-7.0.54-23_patch_05.ep6.el7.noarch.rpm
tomcat7-webapps-7.0.54-23_patch_05.ep6.el7.noarch.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. 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

8. 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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