ESB-2017.2827 - [Appliance][Virtual] F5 products: Execute arbitrary code/commands - Remote/unauthenticated 2017-11-06

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.2827
                K64412100: PHP vulnerability CVE-2016-4073
                              6 November 2017

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

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

Product:           F5 products
Publisher:         F5 Networks
Operating System:  Network Appliance
                   Virtualisation
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Denial of Service               -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-4073  

Reference:         ESB-2016.2728
                   ESB-2016.2007
                   ESB-2016.1572
                   ESB-2016.1514
                   ESB-2016.1235
                   ESB-2016.1032

Original Bulletin: 
   https://support.f5.com/csp/article/K64412100

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K64412100: PHP vulnerability CVE-2016-4073

Security Advisory

Original Publication Date: Aug 30, 2016
Updated Date: Nov 02, 2017

Applies to (see versions):

  o Product: BIG-IQ, BIG-IQ Cloud, BIG-IQ Device, BIG-IQ Security, BIG-IQ ADC,
    BIG-IQ Centralized Management
      - 5.0.0, 4.6.0, 4.5.0, 4.4.0, 4.3.0, 4.2.0, 4.1.0, 4.0.0
  o Product: BIG-IP, BIG-IP AAM, BIG-IP AFM, BIG-IP Analytics, BIG-IP APM,
    BIG-IP ASM, BIG-IP DNS, BIG-IP Edge Gateway, BIG-IP GTM, BIG-IP Link
    Controller, BIG-IP LTM, BIG-IP PEM, BIG-IP PSM, BIG-IP WebAccelerator,
    BIG-IP WOM
      - 13.0.0, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.2, 11.6.1, 11.6.0, 11.5.5,
        11.5.4, 11.5.3, 11.5.2, 11.5.1, 11.5.0, 11.4.1, 11.4.0, 11.2.1, 10.2.4
  o Product: Enterprise Manager
      - 3.1.1
  o Product: F5 iWorkflow
      - 2.0.0
  o Product: LineRate
      - 2.6.1, 2.6.0, 2.5.2, 2.5.1, 2.5.0
  o Product: ARX, ARX
      - 6.4.0, 6.3.0, 6.2.0
  o Product: FirePass
      - 7.0.0
  o Product: F5 WebSafe
      - 1.0.0
  o Product: Traffix SDC
      - 4.4.0, 4.1.0, 4.0.5, 4.0.2, 4.0.0
  o Product: BIG-IQ Cloud and Orchestration
      - 1.0.0

Security Advisory Description

Multiple integer overflows in the mbfl_strcut function in ext/mbstring/libmbfl/
mbfl/mbfilter.c in PHP before 5.5.34, 5.6.x before 5.6.20, and 7.x before 7.0.5
allow remote attackers to cause a denial of service (application crash) or
possibly execute arbitrary code via a crafted mb_strcut call. (CVE-2016-4073)

Impact

An attacker may access unauthorized information, run arbitrary code, or cause a
disruption of service. In default configurations, the BIG-IP system is not
vulnerable; however, the vulnerability can be exposed through custom PHP
scripts.

Security Advisory Status

F5 Product Development has assigned ID 592001 (BIG-IP), ID 610450 (BIG-IQ), and
ID 610451 (Enterprise Manager) to this vulnerability. Additionally, BIG-IP
iHealth may list Heuristic H64412100 on the Diagnostics > Identified > Medium
screen.

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         |
+---------------+----------------+-----------------+----------+----------------+
|               |12.0.0 - 12.1.1 |13.0.0           |          |                |
|BIG-IP LTM     |11.4.0 - 11.6.1 |12.1.2           |Medium    |PHP             |
|               |11.2.1          |11.6.2           |          |                |
|               |10.2.4          |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |12.0.0 - 12.1.1 |13.0.0           |          |                |
|BIG-IP AAM     |11.4.0 - 11.6.1 |12.1.2           |Medium    |PHP             |
|               |                |11.6.2           |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |12.0.0 - 12.1.1 |13.0.0           |          |                |
|BIG-IP AFM     |11.4.0 - 11.6.1 |12.1.2           |Medium    |PHP             |
|               |                |11.6.2           |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |12.0.0 - 12.1.1 |13.0.0           |          |                |
|BIG-IP         |11.4.0 - 11.6.1 |12.1.2           |Medium    |PHP             |
|Analytics      |11.2.1          |11.6.2           |          |                |
|               |10.2.4          |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |12.0.0 - 12.1.1 |13.0.0           |          |                |
|BIG-IP APM     |11.4.0 - 11.6.1 |12.1.2    |Medium    |PHP             |
|               |11.2.1          |11.6.2           |          |                |
|               |10.2.4          |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |12.0.0 - 12.1.1 |13.0.0           |          |                |
|BIG-IP ASM     |11.4.0 - 11.6.1 |12.1.2    |Medium    |PHP             |
|               |11.2.1          |11.6.2           |          |                |
|               |10.2.4          |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP DNS     |12.0.0 - 12.1.1 |13.0.0           |Medium    |PHP             |
|               |                |12.1.2    |          |                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP Edge    |11.2.1          |None             |Medium    |PHP             |
|Gateway        |10.2.4          |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |11.4.0 - 11.6.1 |                 |          |                |
|BIG-IP GTM     |11.2.1          |11.6.2           |Medium    |PHP             |
|               |10.2.4          |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |12.0.0 - 12.1.1 |13.0.0           |          |                |
|BIG-IP Link    |11.4.0 - 11.6.1 |12.1.2    |Medium    |PHP             |
|Controller     |11.2.1          |11.6.2           |          |                |
|               |10.2.4          |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |12.0.0 - 12.1.1 |13.0.0           |          |                |
|BIG-IP PEM     |11.4.0 - 11.6.1 |12.1.2    |Medium    |PHP             |
|               |                |11.6.2           |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |11.4.0 - 11.4.1 |                 |          |                |
|BIG-IP PSM     |11.2.1          |None             |Medium    |PHP             |
|               |10.2.4          |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP         |11.2.1          |None             |Medium    |PHP             |
|WebAccelerator |10.2.4          |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP WOM     |11.2.1          |None             |Medium    |PHP             |
|               |10.2.4          |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |12.0.0 - 12.1.1 |13.0.0           |          |                |
|BIG-IP WebSafe |11.6.0 - 11.6.1 |12.1.2    |Medium    |PHP             |
|               |                |11.6.2           |          |                |
+---------------+----------------+-----------------+----------+----------------+
|ARX            |None            |6.2.0 - 6.4.0    |Not       |None            |
|               |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|Enterprise     |3.1.1           |None             |Medium    |PHP             |
|Manager        |                |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|FirePass       |None            |7.0.0            |Not       |None            |
|               |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Cloud   |4.0.0 - 4.5.0   |None             |Medium    |PHP             |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Device  |4.2.0 - 4.5.0   |None             |Medium    |PHP             |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Security|4.0.0 - 4.5.0   |None             |Medium    |PHP             |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ ADC     |4.5.0           |None             |Medium    |PHP             |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ         |5.0.0           |                 |          |                |
|Centralized    |4.6.0           |None             |Medium    |PHP             |
|Management     |                |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Cloud   |                |                 |          |                |
|and            |1.0.0           |None             |Medium    |PHP             |
|Orchestration  |                |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|F5 iWorkflow   |2.0.0           |None             |Medium    |PHP             |
+---------------+----------------+-----------------+----------+----------------+
|LineRate       |None            |2.5.0 - 2.6.1    |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.

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
  o K13123: Managing BIG-IP product hotfixes (11.x - 13.x)
  o K10025: Managing BIG-IP product hotfixes (10.x)
  o K9502: BIG-IP hotfix matrix

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