ESB-2018.3843.2 - UPDATE [Appliance] F5 BIG-IP products: Access confidential data - Existing account 2018-12-18

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             AUSCERT External Security Bulletin Redistribution

                              ESB-2018.3843.2
                 BIG-IP SNMP vulnerability CVE-2018-15328
                             18 December 2018

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

Product:           F5 BIG-IP products
Publisher:         F5 Networks
Operating System:  Network Appliance
Impact/Access:     Access Confidential Data -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-15328  

Original Bulletin: 
   https://support.f5.com/csp/article/K42027747

Revision History:  December 18 2018: Corrected bulletin content
                   December 12 2018: Initial Release

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K42027747: BIG-IP SNMP vulnerability CVE-2018-15328

Security Advisory

Original Publication Date: Dec 12, 2018
Updated Date: Dec 18, 2018

Security Advisory Description

The passphrases for SNMPv3 users and trap destinations that are used
for authentication and privacy are not handled by the BIG-IP system Secure
Vault feature; they are written in the clear to the various configuration
files. (CVE-2018-15328)

Note: The BIG-IP system Secure Vault feature provides an additional layer of
security to the BIG-IP system by encrypting passwords and passphrases, which
the system stores in its configuration files. For more information, refer to
K73034260: Overview of the BIG-IP system Secure Vault feature.

Impact

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

This vulnerability may allow an attacker to use the clear text passphrases to
compromise the SNMP monitoring devices.

Traffix SDC

There is no impact; this F5 product is not affected by this vulnerability.

Security Advisory Status

F5 Product Development has assigned IDs 708554 and 708558 (BIG-IP), IDs 725045
and 725047 (BIG-IQ), and IDs 725039 and 725044 (Enterprise Manager) to this
vulnerability. Additionally, BIG-IP iHealth may list Heuristic H42027747 on the
Diagnostics > Identified > Medium page.

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. For more information
about security advisory versioning, refer to K51812227: Understanding Security
Advisory versioning.

+----------------+------+----------+----------+----------+------+-------------+
|                |      |Versions  |Fixes     |          |CVSSv3|Vulnerable   |
|Product         |Branch|known to  |introduced|Severity  |score^|component or |
|                |      |be        |in        |          |1     |feature      |
|                |      |vulnerable|          |          |      |             |
+----------------+------+----------+----------+----------+------+-------------+
|                |14.x  |14.0.0    |14.1.0    |          |      |             |
|BIG-IP (LTM,    +------+----------+----------+          |      |             |
|AAM, AFM,       |13.x  |13.0.0 -  |None      |          |      |             |
|Analytics, APM, |      |13.1.1    |          |          |      |SNMP         |
|ASM, DNS, Edge  +------+----------+----------+Medium    |6.5   |configuration|
|Gateway, FPS,   |12.x  |12.1.0 -  |None      |          |      |files        |
|GTM, Link       |      |12.1.3    |          |          |      |             |
|Controller, PEM,+------+----------+----------+          |      |             |
|WebAccelerator) |11.x  |11.2.1 -  |None      |          |      |             |
|                |      |11.6.3    |          |          |      |             |
+----------------+------+----------+----------+----------+------+-------------+
|Enterprise      |      |          |          |          |      |SNMP         |
|Manager         |3.x   |3.1.1     |None      |Medium    |6.5   |configuration|
|                |      |          |          |          |      |files        |
+----------------+------+----------+----------+----------+------+-------------+
|                |6.x   |6.0.0 -   |None      |          |      |             |
|                |      |6.0.1     |          |          |      |             |
|BIG-IQ          +------+----------+----------+          |      |SNMP         |
|Centralized     |5.x   |5.0.0 -   |None      |Medium    |6.5   |configuration|
|Management      |      |5.4.0     |          |          |      |files        |
|                +------+----------+----------+          |      |             |
|                |4.x   |4.6.0     |None      |          |      |             |
+----------------+------+----------+----------+----------+------+-------------+
|                |      |2.2.0 -   |          |          |      |SNMP         |
|F5 iWorkflow    |2.x   |2.3.0     |None      |Medium    |6.5   |configuration|
|                |      |          |          |          |      |files        |
+----------------+------+----------+----------+----------+------+-------------+
|                |5.x   |None      |Not       |          |      |             |
|                |      |          |applicable|Not       |      |             |
|Traffix SDC     +------+----------+----------+vulnerable|None  |None         |
|                |4.x   |None      |Not       |          |      |             |
|                |      |          |applicable|          |      |             |
+----------------+------+----------+----------+----------+------+-------------+

^1 The 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.

Mitigation

None

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