ESB-2018.0013 - [Appliance] F5 BIG-IP Products: Root compromise - Existing account 2018-01-02

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.0013
                K73705133: Bash vulnerability CVE-2016-7543
                              2 January 2018

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

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

Product:           F5 BIG-IP Products
Publisher:         F5 Networks
Operating System:  Network Appliance
Impact/Access:     Root Compromise -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-7543  

Reference:         ASB-2017.0219
                   ESB-2017.3225.2
                   ESB-2017.0755
                   ESB-2017.0392

Original Bulletin: 
   https://support.f5.com/csp/article/K73705133

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K73705133: Bash vulnerability CVE-2016-7543

Security Advisory

Original Publication Date: Jan 28, 2017
Updated Date: Dec 27, 2017

Security Advisory Description

Bash before 4.4 allows local users to execute arbitrary commands with root
privileges via crafted SHELLOPTS and PS4 environment variables. (CVE-2016-7543)

Impact

BIG-IP, F5 iWorkflow, BIG-IQ, and Enterprise Manager

Impact is minimal for BIG-IP, iWorkflow, BIG-IQ, and Enterprise Manager systems
because these F5 products do not allow unprivileged local access.

Traffix SDC

This vulnerability may allow local users to gain knowledge of sensitive
information, manipulate certain data, or disrupt service.

Security Advisory Status

F5 Product Development has assigned IDs 640493 and 640496 (BIG-IP), ID 640635
(BIG-IQ), ID 641734 (iWorkflow), ID 640850 (Enterprise Manager), and
INSTALLER-2879 (Traffix SDC) to this vulnerability. Additionally, BIG-IP
iHealth may list Heuristic H73705133 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          |be not vulnerable|Severity   |component or   |
|               |vulnerable     |                 |           |feature        |
+---------------+---------------+-----------------+-----------+---------------+
|               |13.0.0         |                 |           |               |
|BIG-IP LTM     |12.0.0 - 12.1.2|13.1.0           |Medium     |Bash           |
|               |11.4.0 - 11.6.2|12.1.3           |           |               |
|               |11.2.1         |                 |           |               |
+---------------+---------------+-----------------+-----------+---------------+
|               |13.0.0         |13.1.0           |           |               |
|BIG-IP AAM     |12.0.0 - 12.1.2|12.1.3           |Medium     |Bash           |
|               |11.4.0 - 11.6.2|                 |           |               |
+---------------+---------------+-----------------+-----------+---------------+
|               |13.0.0         |13.1.0           |           |               |
|BIG-IP AFM     |12.0.0 - 12.1.2|12.1.3           |Medium     |Bash           |
|               |11.4.0 - 11.6.2|                 |           |               |
+---------------+---------------+-----------------+-----------+---------------+
|               |13.0.0         |                 |           |               |
|BIG-IP         |12.0.0 - 12.1.2|13.1.0           |Medium     |Bash           |
|Analytics      |11.4.0 - 11.6.2|12.1.3           |           |               |
|               |11.2.1         |                 |           |               |
+---------------+---------------+-----------------+-----------+---------------+
|               |13.0.0         |                 |           |               |
|BIG-IP APM     |12.0.0 - 12.1.2|13.1.0           |Medium     |Bash           |
|               |11.4.0 - 11.6.2|12.1.3           |           |               |
|               |11.2.1         |                 |           |               |
+---------------+---------------+-----------------+-----------+---------------+
|               |13.0.0         |                 |           |               |
|BIG-IP ASM     |12.0.0 - 12.1.2|13.1.0           |Medium     |Bash           |
|               |11.4.0 - 11.6.2|12.1.3           |           |               |
|               |11.2.1         |                 |           |               |
+---------------+---------------+-----------------+-----------+---------------+
|BIG-IP DNS     |13.0.0         |13.1.0           |Medium     |Bash           |
|               |12.0.0 - 12.1.2|12.1.3           |           |               |
+---------------+---------------+-----------------+-----------+---------------+
|BIG-IP Edge    |11.2.1         |None             |Medium     |Bash           |
|Gateway        |               |                 |           |               |
+---------------+---------------+-----------------+-----------+---------------+
|BIG-IP GTM     |11.4.0 - 11.6.2|None             |Medium     |Bash           |
|               |11.2.1         |                 |           |               |
+---------------+---------------+-----------------+-----------+---------------+
|               |13.0.0         |                 |           |               |
|BIG-IP Link    |12.0.0 - 12.1.2|13.1.0           |Medium     |Bash           |
|Controller     |11.4.0 - 11.6.2|12.1.3           |           |               |
|               |11.2.1         |                 |           |               |
+---------------+---------------+-----------------+-----------+---------------+
|               |13.0.0         |13.1.0           |           |               |
|BIG-IP PEM     |12.0.0 - 12.1.2|12.1.3           |Medium     |Bash           |
|               |11.4.0 - 11.6.2|                 |           |               |
+---------------+---------------+-----------------+-----------+---------------+
|BIG-IP PSM     |11.4.0 - 11.4.1|None             |Medium     |Bash           |
+---------------+---------------+-----------------+-----------+---------------+
|BIG-IP         |11.2.1         |None             |Medium     |Bash           |
|WebAccelerator |               |                 |           |               |
+---------------+---------------+-----------------+-----------+---------------+
|               |13.0.0         |13.1.0           |           |               |
|BIG-IP WebSafe |12.0.0 - 12.1.2|12.1.3           |Medium     |Bash           |
|               |11.6.0 - 11.6.2|                 |           |               |
+---------------+---------------+-----------------+-----------+---------------+
|               |               |                 |Not        |               |
|ARX            |None           |6.2.0 - 6.4.0    |vulnerable^|None           |
|               |               |                 |1          |               |
+---------------+---------------+-----------------+-----------+---------------+
|Enterprise     |3.1.1          |None             |Medium     |Bash           |
|Manager        |               |                 |           |               |
+---------------+---------------+-----------------+-----------+---------------+
|BIG-IQ Cloud   |4.0.0 - 4.5.0  |None             |Medium     |Bash           |
+---------------+---------------+-----------------+-----------+---------------+
|BIG-IQ Device  |4.2.0 - 4.5.0  |None             |Medium     |Bash           |
+---------------+---------------+-----------------+-----------+---------------+
|BIG-IQ Security|4.0.0 - 4.5.0  |None             |Medium     |Bash           |
+---------------+---------------+-----------------+-----------+---------------+
|BIG-IQ ADC     |4.5.0          |None             |Medium     |Bash           |
+---------------+---------------+-----------------+-----------+---------------+
|BIG-IQ         |5.0.0 - 5.1.0  |                 |           |               |
|Centralized    |4.6.0          |None             |Medium     |Bash           |
|Management     |               |                 |           |               |
+---------------+---------------+-----------------+-----------+---------------+
|BIG-IQ Cloud   |               |                 |           |               |
|and            |1.0.0          |None             |Medium     |Bash           |
|Orchestration  |               |                 |           |               |
+---------------+---------------+-----------------+-----------+---------------+
|F5 iWorkflow   |2.0.0 - 2.0.2  |None             |Medium     |Bash           |
+---------------+---------------+-----------------+-----------+---------------+
|               |               |                 |Not        |               |
|LineRate       |None           |2.5.0 - 2.6.1    |vulnerable^|None           |
|               |               |                 |1          |               |
+---------------+---------------+-----------------+-----------+---------------+
|Traffix SDC    |5.0.0 - 5.1.0  |None             |Low        |Bash           |
|               |4.0.0 - 4.4.0  |                 |           |               |
+---------------+---------------+-----------------+-----------+---------------+

^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.

To determine the necessary upgrade path for your BIG-IQ system, you should
understand the BIG-IQ product offering name changes. For more information,
refer to K21232150: Considerations for upgrading BIG-IQ or F5 iWorkflow systems
.

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

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