ESB-2017.2458 - [Appliance] F5 ARX: Access confidential data - Remote/unauthenticated 2017-09-29

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.2458
           K82455382: Apache Tomcat vulnerability CVE-2016-8745
                             29 September 2017

===========================================================================

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

Product:           F5 ARX
Publisher:         F5 Networks
Operating System:  Network Appliance
Impact/Access:     Access Confidential Data -- Remote/Unauthenticated
Resolution:        Mitigation
CVE Names:         CVE-2016-8745  

Reference:         ESB-2017.1493
                   ESB-2017.1135
                   ESB-2017.0056

Original Bulletin: 
   https://support.f5.com/csp/article/K82455382

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K82455382: Apache Tomcat vulnerability CVE-2016-8745

Security Advisory

Original Publication Date: Sep 29, 2017

Applies to (see versions):

Security Advisory Description

A bug in the error handling of the send file code for the NIO HTTP connector 
in Apache Tomcat 9.0.0.M1 to 9.0.0.M13, 8.5.0 to 8.5.8, 8.0.0.RC1 to 8.0.39, 
7.0.0 to 7.0.73 and 6.0.16 to 6.0.48 resulted in the current Processor object
being added to the Processor cache multiple times. This in turn meant that the
same Processor could be used for concurrent requests. Sharing a Processor can
result in information leakage between requests including, not not limited to,
session ID and the response body. The bug was first noticed in 8.5.x onwards 
where it appears the refactoring of the Connector code for 8.5.x onwards made
it more likely that the bug was observed. Initially it was thought that the 
8.5.x refactoring introduced the bug but further investigation has shown that
the bug is present in all currently supported Tomcat versions. (CVE-2016-8745)

Impact

This vulnerability can result in information leakage between requests, 
including, but not limited to, the session ID and response body.

Security Advisory Status

F5 Product Development has assigned ID 466436 (ARX) to this vulnerability.

To determine if your release is known to be vulnerable, the components or 
features that are affected by the vulnerability, and for information about 
releases or hotfixes that address the vulnerability, refer to the following 
table:


+---------------+----------------+-----------------+----------+----------------+
|               |Versions known  |Versions known to|          |Vulnerable      |
|Product        |to be vulnerable|be not vulnerable|Severity  |component or    |
|               |                |                 |          |feature         |
+---------------+----------------+-----------------+----------+----------------+
|               |                |13.0.0           |          |                |
|BIG-IP LTM     |None            |12.0.0 - 12.1.2  |Not       |None            |
|               |                |11.4.1 - 11.6.1  |vulnerable|                |
|               |                |11.2.1           |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |                |13.0.0           |Not       |                |
|BIG-IP AAM     |None            |12.0.0 - 12.1.2  |vulnerable|None            |
|               |                |11.4.1 - 11.6.1  |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |                |13.0.0           |Not       |                |
|BIG-IP AFM     |None            |12.0.0 - 12.1.2  |vulnerable|None            |
|               |                |11.4.1 - 11.6.1  |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |                |13.0.0           |          |                |
|BIG-IP         |None            |12.0.0 - 12.1.2  |Not       |None            |
|Analytics      |                |11.4.1 - 11.6.1  |vulnerable|                |
|               |                |11.2.1           |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |                |13.0.0           |          |                |
|BIG-IP APM     |None            |12.0.0 - 12.1.2  |Not       |None            |
|               |                |11.4.1 - 11.6.1  |vulnerable|                |
|               |                |11.2.1           |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |                |13.0.0           |          |                |
|BIG-IP ASM     |None            |12.0.0 - 12.1.2  |Not       |None            |
|               |                |11.4.1 - 11.6.1  |vulnerable|                |
|               |                |11.2.1           |          |                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP DNS     |None            |13.0.0           |Not       |None            |
|               |                |12.0.0 - 12.1.2  |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP Edge    |None            |11.2.1           |Not       |None            |
|Gateway        |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP GTM     |None            |11.4.1 - 11.6.1  |Not       |None            |
|               |                |11.2.1           |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|               |                |13.0.0           |          |                |
|BIG-IP Link    |None            |12.0.0 - 12.1.2  |Not       |None            |
|Controller     |                |11.4.1 - 11.6.1  |vulnerable|                |
|               |                |11.2.1           |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |                |13.0.0           |Not       |                |
|BIG-IP PEM     |None            |12.0.0 - 12.1.2  |vulnerable|None            |
|               |                |11.4.1 - 11.6.1  |          |                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP PSM     |None            |11.4.1           |Not       |None            |
|               |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP         |None            |11.2.1           |Not       |None            |
|WebAccelerator |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|               |                |13.0.0           |Not       |                |
|BIG-IP WebSafe |None            |12.0.0 - 12.1.2  |vulnerable|None            |
|               |                |11.6.0 - 11.6.1  |          |                |
+---------------+----------------+-----------------+----------+----------------+
|ARX            |6.2.0 - 6.4.0   |None             |Low       |ARX Manager GUI |
+---------------+----------------+-----------------+----------+----------------+
|Enterprise     |None            |3.1.1            |Not       |None            |
|Manager        |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Cloud   |None            |4.4.0 - 4.5.0    |Not       |None            |
|               |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Device  |None            |4.4.0 - 4.5.0    |Not       |None            |
|               |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Security|None            |4.4.0 - 4.5.0    |Not       |None            |
|               |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ ADC     |None            |4.5.0            |Not       |None            |
|               |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ         |                |5.0.0 - 5.3.0    |Not       |                |
|Centralized    |None            |4.6.0            |vulnerable|None            |
|Management     |                |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Cloud   |                |                 |Not       |                |
|and            |None            |1.0.0            |vulnerable|None            |
|Orchestration  |                |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|F5 iWorkflow   |None            |2.0.0 - 2.3.0    |Not       |None            |
|               |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|LineRate       |None            |2.5.0 - 2.6.2    |Not       |None            |
|               |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|Traffix SDC    |None            |5.0.0 - 5.1.0    |Not       |None            |
|               |                |4.0.0 - 4.4.0    |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+


If you are running a version listed in the Versions known to be vulnerable 
column, you can eliminate this vulnerability by upgrading to a version listed
in the Versions known to be not vulnerable column. If the table lists only an
older version than what you are currently running, or does not list a 
non-vulnerable version, then no upgrade candidate currently exists.

Mitigation

To mitigate this vulnerability, you can limit access to the ARX Manager GUI IP
address and port to trusted users and/or use the command line interface 
instead of the ARX Manager GUI.

Supplemental Information

K9970: Subscribing to email notifications regarding F5 products

K9957: Creating a custom RSS feed to view new and updated documents

K4602: Overview of the F5 security vulnerability response policy

K4918: Overview of the F5 critical issue hotfix policy

K167: Downloading software and firmware from F5

K12766: ARX hotfix matrix

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