ESB-2018.0022 - [Appliance] F5 BIG-IP Products: Reduced security - Existing account - 2018-01-02


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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.0022
           K04253390: Apache Xerces vulnerability CVE-2016-2099
                              2 January 2018

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

Product:           F5 BIG-IP Products
Publisher:         F5 Networks
Operating System:  Network Appliance
Impact/Access:     Reduced Security -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-2099  

Reference:         ESB-2016.1222

Original Bulletin: 
   https://support.f5.com/csp/article/K04253390

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K04253390: Apache Xerces vulnerability CVE-2016-2099

Security Advisory

Original Publication Date: Jul 19, 2016
Updated Date: Dec 27, 2017

Security Advisory Description

Use-after-free vulnerability in validators/DTD/DTDScanner.cpp in Apache Xerces
C++ 3.1.3 and earlier does not properly handle exceptions raised in the
XMLReader class, which allows context-dependent attackers to have unspecified
impact via an invalid character in an XML document. (CVE-2016-2099)

Impact

  o An attacker requires privileged access to a dynamically generated XML file
    to exploit one of the affected components of the BIG-IP APM system.
    Additionally, an attacker must have access to a privileged user in order to
    download a malformed XML file on the system to trigger the exploit.
  o The XML file accessed by the affected component of BIG-IP Analytics is
    internal and inaccessible to external sources, thus limiting the
    vulnerability exposure.

Security Advisory Status

F5 Product Development has assigned IDs 598950 and 599360 (BIG-IP), ID 599815
(Enterprise Manager), and ID 595939 (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          |be not vulnerable|Severity  |component or    |
|               |vulnerable     |                 |          |feature         |
+---------------+---------------+-----------------+----------+----------------+
|               |               |13.0.0 - 13.1.0  |          |                |
|               |               |12.0.0 - 12.1.3  |Not       |                |
|BIG-IP LTM     |None           |11.4.0 - 11.6.2  |vulnerable|None            |
|               |               |11.2.1           |          |                |
|               |               |10.2.1 - 10.2.4  |          |                |
+---------------+---------------+-----------------+----------+----------------+
|               |               |13.0.0 - 13.1.0  |Not       |                |
|BIG-IP AAM     |None           |12.0.0 - 12.1.3  |vulnerable|None            |
|               |               |11.4.0 - 11.6.2  |          |                |
+---------------+---------------+-----------------+----------+----------------+
|               |               |13.0.0 - 13.1.0  |Not       |                |
|BIG-IP AFM     |None           |12.0.0 - 12.1.3  |vulnerable|None            |
|               |               |11.4.0 - 11.6.2  |          |                |
+---------------+---------------+-----------------+----------+----------------+
|               |13.0.0         |                 |          |                |
|BIG-IP         |12.0.0 - 12.1.3|13.1.0           |Low       |The monpd daemon|
|Analytics      |11.4.0 - 11.6.2|                 |          |                |
|               |11.2.1         |                 |          |                |
+---------------+---------------+-----------------+----------+----------------+
|               |13.0.0         |                 |          |                |
|               |12.0.0 - 12.1.3|                 |          |PolicySync and  |
|BIG-IP APM     |11.4.0 - 11.6.2|13.1.0           |Medium    |the samlidpd    |
|               |11.2.1         |                 |          |daemon          |
|               |10.2.1 - 10.2.4|                 |          |                |
+---------------+---------------+-----------------+----------+----------------+
|               |               |13.0.0 - 13.1.0  |          |                |
|               |               |12.0.0 - 12.1.3  |Not       |                |
|BIG-IP ASM     |None           |11.4.0 - 11.6.2  |vulnerable|None            |
|               |               |11.2.1           |          |                |
|               |               |10.2.1 - 10.2.4  |          |                |
+---------------+---------------+-----------------+----------+----------------+
|BIG-IP DNS     |None           |13.0.0 - 13.1.0  |Not       |None            |
|               |               |12.0.0 - 12.1.3  |vulnerable|                |
+---------------+---------------+-----------------+----------+----------------+
|BIG-IP Edge    |11.2.1         |                 |          |PolicySync and  |
|Gateway        |10.2.1 - 10.2.4|None             |Medium    |the samlidpd    |
|               |               |                 |          |daemon          |
+---------------+---------------+-----------------+----------+----------------+
|               |               |11.4.0 - 11.6.2  |Not       |                |
|BIG-IP GTM     |None           |11.2.1           |vulnerable|None            |
|               |               |10.2.1 - 10.2.4  |          |                |
+---------------+---------------+-----------------+----------+----------------+
|               |               |13.0.0 - 13.1.0  |          |                |
|BIG-IP Link    |               |12.0.0 - 12.1.3  |Not       |                |
|Controller     |None           |11.4.0 - 11.6.2  |vulnerable|None            |
|               |               |11.2.1           |          |                |
|               |               |10.2.1 - 10.2.4  |          |                |
+---------------+---------------+-----------------+----------+----------------+
|               |               |13.0.0 - 13.1.0  |Not       |                |
|BIG-IP PEM     |None           |12.0.0 - 12.1.3  |vulnerable|None            |
|               |               |11.4.0 - 11.6.2  |          |                |
+---------------+---------------+-----------------+----------+----------------+
|BIG-IP PSM     |None           |11.4.0 - 11.4.1  |Not       |None            |
|               |               |10.2.1 - 10.2.4  |vulnerable|                |
+---------------+---------------+-----------------+----------+----------------+
|BIG-IP         |None           |11.2.1           |Not       |None            |
|WebAccelerator |               |10.2.1 - 10.2.4  |vulnerable|                |
+---------------+---------------+-----------------+----------+----------------+
|BIG-IP WOM     |None           |11.2.1           |Not       |None            |
|               |               |10.2.1 - 10.2.4  |vulnerable|                |
+---------------+---------------+-----------------+----------+----------------+
|ARX            |6.2.0 - 6.4.0  |None             |Low       |ARX GUI         |
+---------------+---------------+-----------------+----------+----------------+
|Enterprise     |3.1.1          |None             |Medium    |EM daemons      |
|Manager        |               |                 |          |                |
+---------------+---------------+-----------------+----------+----------------+
|FirePass       |None           |7.0.0            |Not       |None            |
|               |               |                 |vulnerable|                |
+---------------+---------------+-----------------+----------+----------------+
|BIG-IQ Cloud   |None           |4.0.0 - 4.5.0    |Not       |None            |
|               |               |                 |vulnerable|                |
+---------------+---------------+-----------------+----------+----------------+
|BIG-IQ Device  |None           |4.2.0 - 4.5.0    |Not       |None            |
|               |               |                 |vulnerable|                |
+---------------+---------------+-----------------+----------+----------------+
|BIG-IQ Security|None           |4.0.0 - 4.5.0    |Not       |None            |
|               |               |                 |vulnerable|                |
+---------------+---------------+-----------------+----------+----------------+
|BIG-IQ ADC     |None           |4.5.0            |Not       |None            |
|               |               |                 |vulnerable|                |
+---------------+---------------+-----------------+----------+----------------+
|BIG-IQ         |               |5.0.0            |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            |Not       |None            |
|               |               |                 |vulnerable|                |
+---------------+---------------+-----------------+----------+----------------+
|LineRate       |None           |2.5.0 - 2.6.1    |Not       |None            |
|               |               |                 |vulnerable|                |
+---------------+---------------+-----------------+----------+----------------+
|F5 MobileSafe  |None           |1.0.0            |Not       |None            |
|               |               |                 |vulnerable|                |
+---------------+---------------+-----------------+----------+----------------+
|F5 WebSafe     |None           |1.0.0            |Not       |None            |
|               |               |                 |vulnerable|                |
+---------------+---------------+-----------------+----------+----------------+
|Traffix SDC    |None           |5.0.0            |Not       |None            |
|               |               |4.0.0 - 4.4.0    |vulnerable|                |
+---------------+---------------+-----------------+----------+----------------+

Security Advisory Recommended Actions

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

None

Supplemental Information

  o K9970: Subscribing to email notifications regarding F5 products
  o K9957: Creating a custom RSS feed to view new and updated documents
  o K4602: Overview of the F5 security vulnerability response policy
  o K4918: Overview of the F5 critical issue hotfix policy
  o K167: Downloading software and firmware from F5

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