ESB-2018.1632 - [Appliance] F5 BIG-IP: Denial of service - Remote/unauthenticated 2018-05-31

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

                               ESB-2018.1632
                  F5 BIG-IP Products - TMM vulnerability
                                31 May 2018

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

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

Product:           F5 BIG-IP
Publisher:         F5 Networks
Operating System:  Network Appliance
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-5513  

Original Bulletin: 
   https://support.f5.com/csp/article/K46940010

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K46940010: TMM vulnerability CVE-2018-5513

Security Advisory

  
Original Publication Date: May 31, 2018

Applies to (see versions):

  o Product: BIG-IQ, BIG-IQ Centralized Management
      - 5.4.0, 5.3.0, 5.2.0, 5.1.0, 5.0.0, 4.6.0
  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 WebAccelerator
      - 13.1.0, 13.0.1, 13.0.0, 12.1.3, 12.1.2, 12.1.1, 12.1.0, 11.6.3, 11.6.2,
        11.6.1, 11.5.6, 11.5.5, 11.5.4, 11.5.3, 11.5.2, 11.5.1, 11.2.1
  o Product: Enterprise Manager
      - 3.1.1
  o Product: F5 iWorkflow
      - 2.3.0, 2.2.0, 2.1.0, 2.0.2
  o Product: LineRate
      - 2.6.2, 2.6.1, 2.6.0, 2.5.3, 2.5.2, 2.5.1, 2.5.0
  o Product: ARX, ARX
      - 6.4.0, 6.3.0, 6.2.0
  o Product: F5 WebSafe
      - 1.0.0
  o Product: Traffix SDC
      - 5.1.0, 4.4.0, 4.0.5
  o Product: BIG-IQ Cloud and Orchestration
      - 1.0.0

Security Advisory Description

A malformed Transport Layer Security (TLS) handshake causes the Traffic
Management Microkernel (TMM) to stop responding, leading to a disruption of
service. This issue is only exposed on the data plane when a Proxy SSL
configuration is enabled. The control plane is not impacted by this issue. 
(CVE-2018-5513)

Impact

The BIG-IP system may temporarily fail to process traffic as it recovers from a
TMM restart, and devices configured as a high availability (HA) pair may fail
over.

Security Advisory Status

F5 Product Development has assigned ID 695901 (BIG-IP) 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 |
|                  |      |be        |in        |           |1     |or feature|
|                  |      |vulnerable|          |           |      |          |
+------------------+------+----------+----------+-----------+------+----------+
|                  |      |13.1.0    |13.1.0.4  |           |      |          |
|                  |13.x  |13.0.0    |13.0.1    |           |      |          |
|BIG-IP (LTM, AAM, |      |          |          |           |      |          |
|AFM, Analytics,   +------+----------+----------+           |      |TMM       |
|APM, ASM, DNS,    |      |12.1.0 -  |          |           |      |(Virtual  |
|Edge Gateway, GTM,|12.x  |12.1.3    |12.1.3.4  |           |      |Server    |
|Link Controller,  |      |          |          |High       |7.5   |with Proxy|
|PEM,              +------+----------+----------+           |      |SSL       |
|WebAccelerator,   |      |11.6.1 -  |          |           |      |enabled)  |
|WebSafe)          |      |11.6.3    |11.6.3.2  |           |      |          |
|                  |11.x  |11.2.1 -  |11.5.6    |           |      |          |
|                  |      |11.5.5    |          |           |      |          |
|                  |      |          |          |           |      |          |
+------------------+------+----------+----------+-----------+------+----------+
|ARX               |6.x   |None      |Not       |Not        |None  |None      |
|                  |      |          |applicable|vulnerable |      |          |
+------------------+------+----------+----------+-----------+------+----------+
|                  |      |          |Not       |Not        |      |          |
|Enterprise Manager|3.x   |None      |applicable|vulnerable^|None  |None      |
|                  |      |          |          |2          |      |          |
+------------------+------+----------+----------+-----------+------+----------+
|                  |5.x   |None      |Not       |           |      |          |
|BIG-IQ Centralized|      |          |applicable|Not        |      |          |
|Management        +------+----------+----------+vulnerable^|None  |None      |
|                  |4.x   |None      |Not       |2          |      |          |
|                  |      |          |applicable|           |      |          |
+------------------+------+----------+----------+-----------+------+----------+
|BIG-IQ Cloud and  |      |          |Not       |Not        |      |          |
|Orchestration     |1.x   |None      |applicable|vulnerable^|None  |None      |
|                  |      |          |          |2          |      |          |
+------------------+------+----------+----------+-----------+------+----------+
|                  |      |          |Not       |Not        |      |          |
|F5 iWorkflow      |2.x   |None      |applicable|vulnerable^|None  |None      |
|                  |      |          |          |2          |      |          |
+------------------+------+----------+----------+-----------+------+----------+
|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|           |      |          |
+------------------+------+----------+----------+-----------+------+----------+

^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.

^2 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 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

Supplemental Information

  o K51812227: Understanding Security Advisory versioning
  o K41942608: Overview of Security Advisory articles
  o K4602: Overview of the F5 security vulnerability response policy
  o K4918: Overview of the F5 critical issue hotfix policy
  o K9502: BIG-IP hotfix and point release matrix
  o K13123: Managing BIG-IP product hotfixes (11.x - 13.x)
  o K167: Downloading software and firmware from F5
  o K9970: Subscribing to email notifications regarding F5 products
  o K9957: Creating a custom RSS feed to view new and updated documents

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