ESB-2017.3257 - [Win][Linux][Appliance][Virtual] F5 products: Reduced security - Remote/unauthenticated 2017-12-21

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.3257
    Apache vulnerability announced and patched in F5 Networks products
                             21 December 2017

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

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

Product:           F5 BIG-IP products
                   F5 Enterprise Manager
Publisher:         F5 Networks
Operating System:  Network Appliance
                   Virtualisation
                   Linux variants
                   Windows
Impact/Access:     Reduced Security -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-6146  

Original Bulletin: 
   https://support.f5.com/csp/article/K42644206

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than F5 products. It is recommended that 
         administrators running mod_auth_token check for an updated version 
         of the software for their operating system.
         
         The vulnerability exists in mod_auth_token and mod_f5_auth_token.
         
         The vendor notes: "This vulnerability can disclose the em_server_ip
         field of valid client certificates. This does not reveal the
         certificate needed for authentication."

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K42644206: Apache vulnerability CVE-2017-6146

Security Advisory

Original Publication Date: Dec 21, 2017

Security Advisory Description

Apache modules apache_auth_token_mod and mod_auth_f5_auth_token.cpp allow
possible unauthenticated bruteforce on the em_server_ip authorization parameter
to obtain which SSL client certificates used for mutual authentication between
BIG-IQ or Enterprise Manager (EM) and managed BIG-IP devices. (CVE-2017-6146)

Impact

This vulnerability can disclose the em_server_ip field of valid client
certificates. This does not reveal the certificate needed for authentication.

Security Advisory Status

F5 Product Development has assigned ID 572272 (BIG-IP) and ID 663962
(Enterprise Manager) to this vulnerability.

To determine if your product and version have been evaluated for this
vulnerability, refer to the Applies to (see versions) box. 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  |Fixes     |          |CVSSv3|Vulnerable    |
|Product        |Branch|known to  |introduced|Severity  |score^|component or  |
|               |      |be        |in        |          |1     |feature       |
|               |      |vulnerable|          |          |      |              |
|---------------+------+----------+----------+----------+------+--------------|
|               |13.x  |13.0.0    |13.1.0    |          |      |              |
|               |      |          |13.0.0 HF1|          |      |              |
|               |------+----------+----------|          |      |              |
|BIG-IP (LTM,   |12.x  |12.0.0 -  |12.1.3    |          |      |              |
|AAM, AFM,      |      |12.1.2    |          |          |      |Apache HTTPD  |
|Analytics, ASM,|------+----------+----------|Medium    |5.3   |(Configuration|
|DNS, GTM, Link |      |11.6.0 -  |          |          |      |utility,      |
|Controller,    |      |11.6.1    |          |          |      |iControl)     |
|PEM, WebSafe)  |11.x  |11.5.0 -  |11.6.2    |          |      |              |
|               |      |11.5.4    |11.5.5    |          |      |              |
|               |      |11.4.0 -  |          |          |      |              |
|               |      |11.4.1    |          |          |      |              |
|---------------+------+----------+----------+----------+------+--------------|
|               |13.x  |None      |Not       |          |      |              |
|               |      |          |applicable|          |      |              |
|               |------+----------+----------|          |      |              |
|BIG-IP (APM)   |12.x  |None      |Not       |Not       |None  |None          |
|               |      |          |applicable|vulnerable|      |              |
|               |------+----------+----------|          |      |              |
|               |11.x  |None      |Not       |          |      |              |
|               |      |          |applicable|          |      |              |
|---------------+------+----------+----------+----------+------+--------------|
|ARX            |6.x   |None      |Not       |Not       |None  |None          |
|               |      |          |applicable|vulnerable|      |              |
|---------------+------+----------+----------+----------+------+--------------|
|               |      |          |          |          |      |Apache HTTPD  |
|Enterprise     |3.x   |3.1.1     |Not       |Medium    |5.3   |(Configuration|
|Manager        |      |          |applicable|          |      |utility,      |
|               |      |          |          |          |      |iControl)     |
|---------------+------+----------+----------+----------+------+--------------|
|BIG-IQ (Cloud, |      |          |Not       |Not       |      |              |
|Device,        |4.x   |None      |applicable|vulnerable|None  |None          |
|Security, ADC) |      |          |          |          |      |              |
|---------------+------+----------+----------+----------+------+--------------|
|               |5.x   |None      |Not       |          |      |              |
|BIG-IQ         |      |          |applicable|Not       |      |              |
|Centralized    |------+----------+----------|vulnerable|None  |None          |
|Management     |4.x   |None      |Not       |          |      |              |
|               |      |          |applicable|          |      |              |
|---------------+------+----------+----------+----------+------+--------------|
|BIG-IQ Cloud   |      |          |Not       |Not       |      |              |
|and            |1.x   |None      |applicable|vulnerable|None  |None          |
|Orchestration  |      |          |          |          |      |              |
|---------------+------+----------+----------+----------+------+--------------|
|F5 iWorkflow   |2.x   |None      |Not       |Not       |None  |None          |
|               |      |          |applicable|vulnerable|      |              |
|---------------+------+----------+----------+----------+------+--------------|
|LineRate       |2.x   |None      |Not       |Not       |None  |None          |
|               |      |          |applicable|vulnerable|      |              |
|---------------+------+----------+----------+----------+------+--------------|
|               |5.x   |None      |Not       |          |      |              |
|               |      |          |applicable|Not       |      |              |
|Traffix SDC    |------+----------+----------|vulnerable|None  |None          |
|               |4.x   |None      |Not       |          |      |              |
|               |      |          |applicable|          |      |              |
+-----------------------------------------------------------------------------+

^1The CVSSv3 score link takes you to a resource outside of AskF5, and it is
possible that the document may be removed without our knowledge.

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 Fixes introduced in 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.

Note: For details about how Security Advisory articles are versioned, and what
versions are listed in the table, refer to K51812227: Understanding Security
Advisory versioning.

Mitigation

None

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