ESB-2018.1650 - [Appliance] F5 BIG-IP: Denial of service - Remote/unauthenticated 2018-06-01

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             AUSCERT External Security Bulletin Redistribution

                      TMM vulnerability CVE-2017-6153
                                1 June 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-2017-6153  

Original Bulletin:

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K52167636:TMM vulnerability CVE-2017-6153

Security Advisory

Original Publication Date: 31 May, 2018

Security Advisory Description

Features in the BIG-IP system that utilize inflate functionality directly, via
an iRule, or via the inflate code from PEM module are subjected to a service
disruption via a "Zip Bomb" attack. (CVE-2017-6153)


BIG-IP systems deployed in Forward Proxy mode with the inflate functionality
enabled are at greatest risk for this vulnerability. BIG-IP systems that are
collecting and manually decompressing data by way of iRules (using
HTTP::collect and DECOMPRESS/COMPRESS) have additional risk, as this situation
may increase the likelihood of successful exploitation. The control plane is
not impacted by this issue; this issue is observed on the data plane.

Security Advisory Status

F5 Product Development has assigned ID 676457 (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.x  |13.0.0 -  |  |          |      |          |
|                  |      |13.1.0    |          |          |      |          |
|BIG-IP (LTM, AAM, +------+----------+----------+          |      |          |
|AFM, Analytics,   |12.x  |12.1.0 -  |  |          |      |          |
|APM, ASM, DNS,    |      |12.1.3    |          |          |      |          |
|Edge Gateway, FPS,+------+----------+----------+Medium    |5.3   |TMM       |
|GTM, Link         |      |11.6.1 -  |          |          |      |          |
|Controller, PEM,  |      |11.6.3    |  |          |      |          |
|WebAccelerator)   |11.x  |11.5.1 -  |11.5.6    |          |      |          |
|                  |      |11.5.5    |          |          |      |          |
|                  |      |11.2.1    |          |          |      |          |
|ARX               |6.x   |None      |Not       |Not       |None  |None      |
|                  |      |          |applicable|vulnerable|      |          |
|Enterprise Manager|3.x   |None      |Not       |Not       |None  |None      |
|                  |      |          |applicable|vulnerable|      |          |
|                  |5.x   |None      |Not       |          |      |          |
|BIG-IQ Centralized|      |          |applicable|Not       |      |          |
|Management        +------+----------+----------+vulnerable|None  |None      |
|                  |4.x   |None      |Not       |          |      |          |
|                  |      |          |applicable|          |      |          |
|BIG-IQ Cloud and  |1.x   |None      |Not       |Not       |None  |None      |
|Orchestration     |      |          |applicable|vulnerable|      |          |
|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|          |      |          |

^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.



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 K48955220: Installing an OPSWAT Endpoint Security update on BIG-IP APM
    systems (11.4.x and later)
  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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