RHEL 6 : Red Hat JBoss Web Server 3.1.0 (RHSA-2017:0455)

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

The remote Red Hat host is missing one or more security updates.

Description :

An update is now available for Red Hat JBoss Web Server 3 for RHEL 6.

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 Web Server is a fully integrated and certified set of
components for hosting Java web applications. It is comprised of the
Apache HTTP Server, the Apache Tomcat Servlet container, Apache Tomcat
Connector (mod_jk), JBoss HTTP Connector (mod_cluster), Hibernate, and
the Tomcat Native library.

This release of Red Hat JBoss Web Server 3.1.0 serves as a replacement
for Red Hat JBoss Web Server 3.0.3, and includes enhancements.

Security Fix(es) :

* It was reported that the Tomcat init script performed unsafe file
handling, which could result in local privilege escalation.
(CVE-2016-1240)

* It was discovered that the Tomcat packages installed certain
configuration files read by the Tomcat initialization script as
writeable to the tomcat group. A member of the group or a malicious
web application deployed on Tomcat could use this flaw to escalate
their privileges. (CVE-2016-6325)

* The JmxRemoteLifecycleListener was not updated to take account of
Oracle's fix for CVE-2016-3427. JMXRemoteLifecycleListener is only
included in EWS 2.x and JWS 3.x source distributions. If you deploy a
Tomcat instance built from source, using the EWS 2.x, or JWS 3.x
distributions, an attacker could use this flaw to launch a remote code
execution attack on your deployed instance. (CVE-2016-8735)

* 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)

* It was discovered that the code that parsed the HTTP request line
permitted invalid characters. This could be exploited, in conjunction
with a proxy that also permitted the invalid characters but with a
different interpretation, to inject data into the HTTP response. By
manipulating the HTTP response the attacker could poison a web-cache,
perform an XSS attack, or obtain sensitive information from requests
other then their own. (CVE-2016-6816)

* A bug was discovered in the error handling of the send file code for
the NIO HTTP connector. This led to the current Processor object being
added to the Processor cache multiple times allowing information
leakage between requests including, and not limited to, session ID and
the response body. (CVE-2016-8745)

* The Realm implementations did not process the supplied password if
the supplied user name did not exist. This made a timing attack
possible to determine valid user names. Note that the default
configuration includes the LockOutRealm which makes exploitation of
this vulnerability harder. (CVE-2016-0762)

* It was discovered that a malicious web application could bypass a
configured SecurityManager via a Tomcat utility method that was
accessible to web applications. (CVE-2016-5018)

* It was discovered that when a SecurityManager is configured Tomcat's
system property replacement feature for configuration files could be
used by a malicious web application to bypass the SecurityManager and
read system properties that should not be visible. (CVE-2016-6794)

* It was discovered that a malicious web application could bypass a
configured SecurityManager via manipulation of the configuration
parameters for the JSP Servlet. (CVE-2016-6796)

* It was discovered that it was possible for a web application to
access any global JNDI resource whether an explicit ResourceLink had
been configured or not. (CVE-2016-6797)

The CVE-2016-6325 issue was discovered by Red Hat Product Security.

Enhancement(s) :

This enhancement update adds the Red Hat JBoss Web Server 3.1.0
packages to Red Hat Enterprise Linux 6. These packages provide a
number of enhancements over the previous version of Red Hat JBoss Web
Server. (JIRA#JWS-267)

Users of Red Hat JBoss Web Server are advised to upgrade to these
updated packages, which add this enhancement.

See also :

http://rhn.redhat.com/errata/RHSA-2017-0455.html
https://www.redhat.com/security/data/cve/CVE-2016-0762.html
https://www.redhat.com/security/data/cve/CVE-2016-1240.html
https://www.redhat.com/security/data/cve/CVE-2016-3092.html
https://www.redhat.com/security/data/cve/CVE-2016-5018.html
https://www.redhat.com/security/data/cve/CVE-2016-6325.html
https://www.redhat.com/security/data/cve/CVE-2016-6794.html
https://www.redhat.com/security/data/cve/CVE-2016-6796.html
https://www.redhat.com/security/data/cve/CVE-2016-6797.html
https://www.redhat.com/security/data/cve/CVE-2016-6816.html
https://www.redhat.com/security/data/cve/CVE-2016-8735.html
https://www.redhat.com/security/data/cve/CVE-2016-8745.html

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 6.4
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

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