ESB-2018.0235 - [Appliance] F5 BIG-IP and ARX: Provide misleading information - Remote/unauthenticated 2018-01-23

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

                               ESB-2018.0235
         K00373024: Apache vulnerability CVE-2016-8743 affects F5
                          BIG-IP products and ARX
                              23 January 2018

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

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

Product:           F5 BIG-IP products
                   F5 ARX
Publisher:         F5 Networks
Operating System:  Network Appliance
Impact/Access:     Provide Misleading Information -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-8743  

Reference:         ESB-2018.0154
                   ASB-2017.0219
                   ASB-2017.0058
                   ASB-2017.0021
                   ASB-2017.0014

Original Bulletin: 
   https://support.f5.com/csp/article/K00373024

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

K00373024: Apache vulnerability CVE-2016-8743

Security Advisory

Original Publication Date: Feb 04, 2017
Updated Date: Jan 23, 2018

Security Advisory Description

Apache HTTP Server, in all releases prior to 2.2.32 and 2.4.25, was liberal in
the whitespace accepted from requests and sent in response lines and headers.
Accepting these different behaviors represented a security concern when httpd
participates in any chain of proxies or interacts with back-end application
servers, either through mod_proxy or using conventional CGI mechanisms, and may
result in request smuggling, response splitting and cache pollution. (
CVE-2016-8743)

Impact

An attacker may be able to perform HTTP request smuggling through specially
crafted HTTP requests. For more information about HTTP request smuggling, refer
to Section 9.5 Request Smuggling of Internet Engineering Task Force (RFC 7230).

Note: This link takes you to a resource outside of AskF5. The third party could
remove the document without our knowledge.

Security Advisory Status

F5 Product Development has assigned ID 641101 (BIG-IP), ID 641323 (Enterprise
Manager), and ID 431234 (ARX) to this vulnerability. Additionally, BIG-IP
iHealth may list Heuristic H00373024 on the Diagnostics > Identified > Low
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    |Versions known|           |Vulnerable component  |
|Product       |known to be |to be not     |Severity   |or feature            |
|              |vulnerable  |vulnerable    |           |                      |
+--------------+------------+--------------+-----------+----------------------+
|              |13.0.0 -    |              |           |                      |
|              |13.1.0      |              |           |                      |
|              |12.0.0 -    |              |           |                      |
|BIG-IP LTM    |12.1.3      |13.1.0.2      |Low        |Apache httpd process  |
|              |11.4.0 -    |              |           |                      |
|              |11.6.3      |              |           |                      |
|              |11.2.1      |              |           |                      |
+--------------+------------+--------------+-----------+----------------------+
|              |13.0.0 -    |              |           |                      |
|              |13.1.0      |              |           |                      |
|BIG-IP AAM    |12.0.0 -    |13.1.0.2      |Low        |Apache httpd process  |
|              |12.1.3      |              |           |                      |
|              |11.4.0 -    |              |           |                      |
|              |11.6.3      |              |           |                      |
+--------------+------------+--------------+-----------+----------------------+
|              |13.0.0 -    |              |           |                      |
|              |13.1.0      |              |           |                      |
|BIG-IP AFM    |12.0.0 -    |13.1.0.2      |Low        |Apache httpd process  |
|              |12.1.3      |              |           |                      |
|              |11.4.0 -    |              |           |                      |
|              |11.6.3      |              |           |                      |
+--------------+------------+--------------+-----------+----------------------+
|              |13.0.0 -    |              |           |                      |
|              |13.1.0      |              |           |                      |
|BIG-IP        |12.0.0 -    |              |           |                      |
|Analytics     |12.1.3      |13.1.0.2      |Low        |Apache httpd process  |
|              |11.4.0 -    |              |           |                      |
|              |11.6.3      |              |           |                      |
|              |11.2.1      |              |           |                      |
+--------------+------------+--------------+-----------+----------------------+
|              |13.0.0 -    |              |           |                      |
|              |13.1.0      |              |           |                      |
|              |12.0.0 -    |              |           |                      |
|BIG-IP APM    |12.1.3      |13.1.0.2      |Low        |Apache httpd process  |
|              |11.4.0 -    |              |           |                      |
|              |11.6.3      |              |           |                      |
|              |11.2.1      |              |           |                      |
+--------------+------------+--------------+-----------+----------------------+
|              |13.0.0 -    |              |           |                      |
|              |13.1.0      |              |           |                      |
|              |12.0.0 -    |              |           |                      |
|BIG-IP ASM    |12.1.3      |13.1.0.2      |Low        |Apache httpd process  |
|              |11.4.0 -    |              |           |                      |
|              |11.6.3      |              |           |                      |
|              |11.2.1      |              |           |                      |
+--------------+------------+--------------+-----------+----------------------+
|              |13.0.0 -    |              |           |                      |
|BIG-IP DNS    |13.1.0      |13.1.0.2      |Low        |Apache httpd process  |
|              |12.0.0 -    |              |           |                      |
|              |12.1.3      |              |           |                      |
+--------------+------------+--------------+-----------+----------------------+
|BIG-IP Edge   |11.2.1      |None          |Low        |Apache httpd process  |
|Gateway       |            |              |           |                      |
+--------------+------------+--------------+-----------+----------------------+
|              |11.4.0 -    |              |           |                      |
|BIG-IP GTM    |11.6.3      |None          |Low        |Apache httpd process  |
|              |11.2.1      |              |           |                      |
+--------------+------------+--------------+-----------+----------------------+
|              |13.0.0 -    |              |           |                      |
|              |13.1.0      |              |           |                      |
|BIG-IP Link   |12.0.0 -    |              |           |                      |
|Controller    |12.1.3      |13.1.0.2      |Low        |Apache httpd process  |
|              |11.4.0 -    |              |           |                      |
|              |11.6.3      |              |           |                      |
|              |11.2.1      |              |           |                      |
+--------------+------------+--------------+-----------+----------------------+
|              |13.0.0 -    |              |           |                      |
|              |13.1.0      |              |           |                      |
|BIG-IP PEM    |12.0.0 -    |13.1.0.2      |Low        |Apache httpd process  |
|              |12.1.3      |              |           |                      |
|              |11.4.0 -    |              |           |                      |
|              |11.6.3      |              |           |                      |
+--------------+------------+--------------+-----------+----------------------+
|BIG-IP PSM    |11.4.0 -    |None          |Low        |Apache httpd process  |
|              |11.4.1      |              |           |                      |
+--------------+------------+--------------+-----------+----------------------+
|BIG-IP        |11.2.1      |None          |Low        |Apache httpd process  |
|WebAccelerator|            |              |           |                      |
+--------------+------------+--------------+-----------+----------------------+
|              |13.0.0 -    |              |           |                      |
|              |13.1.0      |              |           |                      |
|BIG-IP WebSafe|12.0.0 -    |13.1.0.2      |Low        |Apache httpd process  |
|              |12.1.3      |              |           |                      |
|              |11.6.0 -    |              |           |                      |
|              |11.6.3      |              |           |                      |
+--------------+------------+--------------+-----------+----------------------+
|              |6.2.0 -     |              |           |Apache httpd process, |
|ARX           |6.4.0       |None          |Low        |Management API        |
|              |            |              |           |(disabled by default) |
+--------------+------------+--------------+-----------+----------------------+
|Enterprise    |3.1.1       |None          |Low        |Apache httpd process  |
|Manager       |            |              |           |                      |
+--------------+------------+--------------+-----------+----------------------+
|              |            |              |Not        |                      |
|BIG-IQ Cloud  |None        |4.0.0 - 4.5.0 |vulnerable^|None                  |
|              |            |              |1          |                      |
+--------------+------------+--------------+-----------+----------------------+
|              |            |              |Not        |                      |
|BIG-IQ Device |None        |4.2.0 - 4.5.0 |vulnerable^|None                  |
|              |            |              |1          |                      |
+--------------+------------+--------------+-----------+----------------------+
|BIG-IQ        |            |              |Not        |                      |
|Security      |None        |4.0.0 - 4.5.0 |vulnerable^|None                  |
|              |            |              |1          |                      |
+--------------+------------+--------------+-----------+----------------------+
|              |            |              |Not        |                      |
|BIG-IQ ADC    |None        |4.5.0         |vulnerable^|None                  |
|              |            |              |1          |                      |
+--------------+------------+--------------+-----------+----------------------+
|BIG-IQ        |            |5.0.0 - 5.1.0 |Not        |                      |
|Centralized   |None        |4.6.0         |vulnerable^|None                  |
|Management    |            |              |1          |                      |
+--------------+------------+--------------+-----------+----------------------+
|BIG-IQ Cloud  |            |              |Not        |                      |
|and           |None        |1.0.0         |vulnerable^|None                  |
|Orchestration |            |              |1          |                      |
+--------------+------------+--------------+-----------+----------------------+
|F5 iWorkflow  |None        |2.0.0 - 2.0.2 |Not        |None                  |
|              |            |              |vulnerable |                      |
+--------------+------------+--------------+-----------+----------------------+
|LineRate      |None        |2.5.0 - 2.6.1 |Not        |None                  |
|              |            |              |vulnerable |                      |
+--------------+------------+--------------+-----------+----------------------+
|Traffix SDC   |None        |5.0.0 - 5.1.0 |Not        |None                  |
|              |            |4.0.0 - 4.4.0 |vulnerable |                      |
+--------------+------------+--------------+-----------+----------------------+

^1 The specified products contain the affected code. However, F5 identifies the
vulnerability status as Not vulnerable because the attacker cannot exploit the
code in default, standard, or recommended configurations.

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

BIG-IP and Enterprise Manager

To mitigate this vulnerability, you should limit access to the Configuration
utility to use only secure networks.

ARX

To mitigate this vulnerability, you should limit access to the ARX GUI to use
only secure networks. Additionally, you should avoid enabling the API
functionality.

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

Applies to (see versions):

  o ARX:
      - 6.4.0, 6.3.0, 6.2.0
  o BIG-IP AAM:
      - 13.1.0, 13.0.0, 12.1.3, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.3, 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
  o BIG-IP AFM:
      - 13.1.0, 13.0.0, 12.1.3, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.3, 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
  o BIG-IP APM:
      - 13.1.0, 13.0.0, 12.1.3, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.3, 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
  o BIG-IP ASM:
      - 13.1.0, 13.0.0, 12.1.3, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.3, 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
  o BIG-IP Analytics:
      - 13.1.0, 13.0.0, 12.1.3, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.3, 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
  o BIG-IP DNS:
      - 13.1.0, 13.0.0, 12.1.3, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.3, 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
  o BIG-IP Edge Gateway:
      - 13.1.0, 13.0.0, 12.1.3, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.3, 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
  o BIG-IP GTM:
      - 13.1.0, 13.0.0, 12.1.3, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.3, 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
  o BIG-IP LTM:
      - 13.1.0, 13.0.0, 12.1.3, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.3, 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
  o BIG-IP Link Controller:
      - 13.1.0, 13.0.0, 12.1.3, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.3, 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
  o BIG-IP PEM:
      - 13.1.0, 13.0.0, 12.1.3, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.3, 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
  o BIG-IP PSM:
      - 13.1.0, 13.0.0, 12.1.3, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.3, 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
  o BIG-IP WebAccelerator:
      - 13.1.0, 13.0.0, 12.1.3, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.3, 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
  o BIG-IQ ADC:
      - 5.1.0, 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 BIG-IQ Centralized Management:
      - 5.1.0, 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 BIG-IQ Cloud:
      - 5.1.0, 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 BIG-IQ Cloud and Orchestration:
      - 1.0.0
  o BIG-IQ Device:
      - 5.1.0, 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 BIG-IQ Security:
      - 5.1.0, 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 Enterprise Manager:
      - 3.1.1
  o F5 WebSafe:
      - 1.0.0
  o F5 iWorkflow:
      - 2.0.0, 2.0.1, 2.0.2
  o LineRate:
      - 2.6.0, 2.5.1, 2.6.1, 2.5.2, 2.5.0
  o Traffix SDC:
      - 4.0.2, 5.1.0, 4.0.0, 4.4.0, 4.0.5

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

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