ESB-2018.1084 - [Win][UNIX/Linux] Adobe ColdFusion: Multiple vulnerabilities 2018-04-11

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.1084
     Multiple vulnerabilities have been identified in Adobe ColdFusion
                               11 April 2018

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Adobe ColdFusion
Publisher:         Adobe
Operating System:  Windows
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated      
                   Increased Privileges            -- Existing Account            
                   Cross-site Scripting            -- Remote with User Interaction
                   Access Confidential Data        -- Remote/Unauthenticated      
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-4942 CVE-2018-4941 CVE-2018-4940
                   CVE-2018-4939 CVE-2018-4938 

Original Bulletin: 
   https://helpx.adobe.com/security/products/coldfusion/apsb18-14.html

- --------------------------BEGIN INCLUDED TEXT--------------------

Adobe Security Bulletin

Applies to: ColdFusion

Last Published: April 11, 2018

Security updates available for ColdFusion | APSB18-14
+-------------------------+--------------------------------+------------------+
|Bulletin ID              |Date Published                  |Priority          |
+-------------------------+--------------------------------+------------------+
|APSB18-14                |April 10, 2018                  |2                 |
+-------------------------+--------------------------------+------------------+

Summary

Adobe has released security updates for ColdFusion version 11 and the 2016
release. These updates resolve an important insecure library loading
vulnerability (CVE-2018-4938), an important cross-site scripting vulnerability
that could lead to code injection (CVE-2018-4940) and an important cross-site
scripting vulnerability that could lead to information disclosure
(CVE-2018-4941). These updates also include a mitigation for a critical unsafe
Java deserialization vulnerability (CVE-2018-4939) and a mitigation for a
critical unsafe XML parsing vulnerability (CVE-2018-4942).

Affected Versions

+----------------------+----------------------+----------------------+
|       Product        |  Affected Versions   |       Platform       |
+----------------------+----------------------+----------------------+
|ColdFusion (2016      |Update 5 and earlier  |All                   |
|release)              |versions              |                      |
+----------------------+----------------------+----------------------+
|ColdFusion 11         |Update 13 and         |All                   |
|                      |earlier versions      |                      |
+----------------------+----------------------+----------------------+

Solution

Adobe categorizes this update with the following priority rating and recommends
users update their installations to the newest versions:

+------------------------+--------------+--------+--------------+------------+
|        Product         |   Updated    |Platform|   Priority   |Availability|
|                        |   Version    |        |    rating    |            |
+------------------------+--------------+--------+--------------+------------+
|ColdFusion (2016        |Update 6      |All     |2             |Tech note   |
|release)                |              |        |              |            |
+------------------------+--------------+--------+--------------+------------+
|ColdFusion 11           |Update 14     |All     |2             |Tech note   |
+------------------------+--------------+--------+--------------+------------+

Note:

The security updates referenced in the above Tech Notes require JDK 8u121 or
higher (for ColdFusion 2016) and JDK 7u131 or JDK 8u121 (for ColdFusion 11).
Adobe recommends updating your ColdFusion JDK/JRE to the latest version.
Applying the ColdFusion update without a corresponding JDK update will NOT
secure the server. See the relevant Tech Notes for more details.

Customers should also apply the security configuration settings as outlined on
the ColdFusion Security page as well as review the respective Lockdown guides.

  o ColdFusion (2016 release) Lockdown Guide
  o ColdFusion 11 Lockdown Guide

Vulnerability Details

+-------------------------+------------------+---------+----------------------+
| Vulnerability Category  |  Vulnerability   |Severity |     CVE Numbers      |
|                         |      Impact      |         |                      |
+-------------------------+------------------+---------+----------------------+
|Insecure Library Loading |Local privilege   |Important|CVE-2018-4938         |
|                         |escalation        |         |                      |
+-------------------------+------------------+---------+----------------------+
|Deserialization of       |Remote code       |Critical |CVE-2018-4939         |
|Untrusted Data           |execution         |         |                      |
+-------------------------+------------------+---------+----------------------+
|Cross-Site Scripting     |Information       |Important|CVE-2018-4940         |
|                         |Disclosure        |         |                      |
+-------------------------+------------------+---------+----------------------+
|Cross-Site Scripting     |Information       |Important|CVE-2018-4941         |
|                         |Disclosure        |         |                      |
+-------------------------+------------------+---------+----------------------+
|Unsafe XML External      |Information       |Critical |CVE-2018-4942         |
|Entity Processing        |Disclosure        |         |                      |
+-------------------------+------------------+---------+----------------------+

Acknowledgements

Adobe would like to thank the following individuals and organizations for
reporting these issues and for working with Adobe to help protect our
customers:

  o Nitesh Shilpkar (CVE-2018-4938)
  o Nick Bloor of NCC Group (CVE-2018-4939)
  o Jaaziel Sam Carlos (CVE-2018-4940)
  o William Eatman and Michael S. O'Dell from USRA (CVE-2018-4941)
  o Matthias Kaiser of Code White GmbH (CVE-2018-4942)

ColdFusion JDK Requirement

COLDFUSION 2016 HF6

This security update requires ColdFusion to be on JDK 8u121 or higher. Adobe
recommends updating your ColdFusion JDK/JRE to the latest version. Applying the
ColdFusion update without a corresponding JDK update will NOT secure the
server.

For Application Servers

Additionally, on JEE installations, set the following JVM flag,
"-Djdk.serialFilter= !org.mozilla.**;!com.sun.syndication.**", in the
respective startup file depending on the type of Application Server being used.

For example:

On Apache Tomcat Application Server, edit JAVA_OPTS in the 'Catalina.bat/sh'
file

On WebLogic Application Server, edit JAVA_OPTIONS in the 'startWeblogic.cmd'
file

On a WildFly/EAP Application Server, edit JAVA_OPTS in the 'standalone.conf'
file

Set the JVM flags on a JEE installation of ColdFusion, not on a standalone
installation.

COLDFUSION 11 HF14

This security update requires ColdFusion to be on JDK 7u131 or JDK 8u121 or
higher.

Adobe recommends updating your ColdFusion JDK/JRE to the latest version.
Applying the ColdFusion update without a corresponding JDK update will NOT
secure the server.

For Application Servers

Additionally, on J2EE installations, set the following JVM flag,
"-Djdk.serialFilter= !org.mozilla.**;!com.sun.syndication.**", in the
respective startup file depending on the type of Application Server being used.

For example:

On Apache Tomcat Application Server, edit JAVA_OPTS in the 'Catalina.bat/sh'
file

On WebLogic Application Server, edit JAVA_OPTIONS in the 'startWeblogic.cmd'
file

On a WildFly/EAP Application Server, edit JAVA_OPTS in the 'standalone.conf'
file

Set the JVM flags on a JEE installation of ColdFusion, not on a standalone
installation.

Adobe Disclaimer

License agreement

By using software of Adobe Systems Incorporated or its subsidiaries ("Adobe");
you agree to the following terms and conditions. If you do not agree with such
terms and conditions; do not use the software. The terms of an end user license
agreement accompanying a particular software file upon installation or download
of the software shall supersede the terms presented below.

The export and re-export of Adobe software products are controlled by the
United States Export Administration Regulations and such software may not be
exported or re-exported to Cuba; Iran; Iraq; Libya; North Korea; Sudan; or
Syria or any country to which the United States embargoes goods. In addition;
Adobe software may not be distributed to persons on the Table of Denial Orders;
the Entity List; or the List of Specially Designated Nationals.

By downloading or using an Adobe software product you are certifying that you
are not a national of Cuba; Iran; Iraq; Libya; North Korea; Sudan; or Syria or
any country to which the United States embargoes goods and that you are not a
person on the Table of Denial Orders; the Entity List; or the List of Specially
Designated Nationals. If the software is designed for use with an application
software product (the "Host Application") published by Adobe; Adobe grants you
a non-exclusive license to use such software with the Host Application only;
provided you possess a valid license from Adobe for the Host Application.
Except as set forth below; such software is licensed to you subject to the
terms and conditions of the End User License Agreement from Adobe governing
your use of the Host Application.

DISCLAIMER OF WARRANTIES: YOU AGREE THAT ADOBE HAS MADE NO EXPRESS WARRANTIES
TO YOU REGARDING THE SOFTWARE AND THAT THE SOFTWARE IS BEING PROVIDED TO YOU
"AS IS" WITHOUT WARRANTY OF ANY KIND. ADOBE DISCLAIMS ALL WARRANTIES WITH
REGARD TO THE SOFTWARE; EXPRESS OR IMPLIED; INCLUDING; WITHOUT LIMITATION; ANY
IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE; MERCHANTABILITY;
MERCHANTABLE QUALITY OR NONINFRINGEMENT OF THIRD PARTY RIGHTS. Some states or
jurisdictions do not allow the exclusion of implied warranties; so the above
limitations may not apply to you.

LIMIT OF LIABILITY: IN NO EVENT WILL ADOBE BE LIABLE TO YOU FOR ANY LOSS OF
USE; INTERRUPTION OF BUSINESS; OR ANY DIRECT; INDIRECT; SPECIAL; INCIDENTAL; OR
CONSEQUENTIAL DAMAGES OF ANY KIND (INCLUDING LOST PROFITS) REGARDLESS OF THE
FORM OF ACTION WHETHER IN CONTRACT; TORT (INCLUDING NEGLIGENCE); STRICT PRODUCT
LIABILITY OR OTHERWISE; EVEN IF ADOBE HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES. Some states or jurisdictions do not allow the exclusion or
limitation of incidental or consequential damages; so the above limitation or
exclusion may not apply to you.

- --------------------------END INCLUDED TEXT--------------------

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