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Published:

07 May 2019

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

                              ESB-2019.1506.2
            F5 Networks bulletin: BIG-IP Resource Administrator
                vulnerabilities CVE-2019-6617/CVE-2019-6618
                                7 May 2019

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

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

Product:           BIG-IP
Publisher:         F5 Networks
Impact/Access:     Modify Arbitrary Files -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-6617 CVE-2019-6618 

Original Bulletin: 
   https://support.f5.com/csp/article/K38941195
   https://support.f5.com/csp/article/K07702240

Revision History:  May 7 2019: Heuristics noted for BIG-IP iHealth
                   May 1 2019: Initial Release

- --------------------------BEGIN INCLUDED TEXT--------------------

K38941195:BIG-IP Resource Administrator vulnerability CVE-2019-6617

Security Advisory

Original Publication Date: 01 May, 2019

Latest   Publication Date: 07 May, 2019

Security Advisory Description

A user with the Resource Administrator role is able to overwrite sensitive
low-level files, such as /etc/passwd, using SFTP to modify user permissions,
without Advanced Shell access. This is contrary to our definition for the
Resource Administrator role restrictions. (CVE-2019-6617)

Impact

An attacker with the Resource Administrator role may be able to manipulate user
privileges.

Security Advisory Status

F5 Product Development has assigned ID 745165 (BIG-IP) to this vulnerability.
Additionally, BIG-IP iHealth may list Heuristic H38941195 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  |
|                 |      |be        |in        |           |1     |or feature |
|                 |      |vulnerable|          |           |      |           |
+-----------------+------+----------+----------+-----------+------+-----------+
|                 |14.x  |14.0.0 -  |14.1.0.2  |           |      |           |
|                 |      |14.1.0    |          |           |      |           |
|                 +------+----------+----------+           |      |           |
|BIG-IP (LTM, AAM,|13.x  |13.0.0 -  |13.1.1.5  |           |      |           |
|AFM, Analytics,  |      |13.1.1    |          |           |      |User       |
|APM, ASM, DNS,   +------+----------+----------+           |      |credentials|
|Edge Gateway,    |12.x  |12.0.0 -  |12.1.4.1  |Medium     |6.5   |when using |
|FPS, GTM, Link   |      |12.1.4    |          |           |      |the SFTP   |
|Controller, PEM, +------+----------+----------+           |      |           |
|WebAccelerator)  |      |11.6.1 -  |          |           |      |           |
|                 |11.x  |11.6.3    |11.6.4    |           |      |           |
|                 |      |11.5.2 -  |11.5.9    |           |      |           |
|                 |      |11.5.8    |          |           |      |           |
+-----------------+------+----------+----------+-----------+------+-----------+
|Enterprise       |      |Not       |          |Not        |      |           |
|Manager          |3.x   |applicable|None      |vulnerable^|None  |None       |
|                 |      |          |          |2          |      |           |
+-----------------+------+----------+----------+-----------+------+-----------+
|                 |6.x   |Not       |None      |           |      |           |
|                 |      |applicable|          |           |      |           |
|BIG-IQ           +------+----------+----------+Not        |      |           |
|Centralized      |5.x   |Not       |None      |vulnerable^|None  |None       |
|Management       |      |applicable|          |2          |      |           |
|                 +------+----------+----------+           |      |           |
|                 |4.x   |Not       |None      |           |      |           |
|                 |      |applicable|          |           |      |           |
+-----------------+------+----------+----------+-----------+------+-----------+
|BIG-IQ Cloud and |      |Not       |          |Not        |      |           |
|Orchestration    |1.x   |applicable|None      |vulnerable^|None  |None       |
|                 |      |          |          |2          |      |           |
+-----------------+------+----------+----------+-----------+------+-----------+
|                 |      |Not       |          |Not        |      |           |
|F5 iWorkflow     |2.x   |applicable|None      |vulnerable^|None  |None       |
|                 |      |          |          |2          |      |           |
+-----------------+------+----------+----------+-----------+------+-----------+
|                 |5.x   |Not       |None      |           |      |           |
|                 |      |applicable|          |Not        |      |           |
|Traffix SDC      +------+----------+----------+vulnerable^|None  |None       |
|                 |4.x   |Not       |None      |2          |      |           |
|                 |      |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

Acknowledgements

F5 would like to acknowledge Rich Mirch for bringing this issue to our
attention and following the highest standards of responsible disclosure.

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)

- --------------------------------------------------------------------------------------

K07702240:BIG-IP Resource Administrator vulnerability CVE-2019-6618

Security Advisory

Original Publication Date: 01 May, 2019

Latest   Publication Date: 07 May, 2019

Security Advisory Description

Users with the Resource Administrator role can modify sensitive portions of the
file system if provided Advanced Shell access, such as editing /etc/passwd.
This allows modifications to user objects and is contrary to our definition for
the Resource Administrator role restrictions. (CVE-2019-6618)

Impact

BIG-IP

An authenticated Resource Administrator user may be able to exploit this
vulnerability when granted Advanced Shell access and compromise the integrity
of the affected systems.

BIG-IQ, Enterprise Manager, F5 iWorkflow, Traffix SDC

There is no impact; these F5 products are not affected by this vulnerability.

Security Advisory Status

F5 Product Development has assigned ID 745387 (BIG-IP) to this vulnerability.
Additionally, BIG-IP iHealth may list Heuristic H07702240 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 -  |14.1.0.2  |          |      |             |
|                |      |14.1.0    |          |          |      |             |
|BIG-IP (LTM,    +------+----------+----------+          |      |             |
|AAM, AFM,       |13.x  |13.0.0 -  |13.1.1.5  |          |      |             |
|Analytics, APM, |      |13.1.1    |          |          |      |TMOS         |
|ASM, DNS, Edge  +------+----------+----------+          |      |(Resource    |
|Gateway, FPS,   |12.x  |12.1.0 -  |12.1.4.1  |Medium    |5.5   |Administrator|
|GTM, Link       |      |12.1.4    |          |          |      |role)        |
|Controller, PEM,+------+----------+----------+          |      |             |
|WebAccelerator) |      |11.6.1 -  |          |          |      |             |
|                |11.x  |11.6.3    |11.6.4    |          |      |             |
|                |      |11.5.2 -  |11.5.9    |          |      |             |
|                |      |11.5.8    |          |          |      |             |
+----------------+------+----------+----------+----------+------+-------------+
|Enterprise      |3.x   |None      |Not       |Not       |None  |None         |
|Manager         |      |          |applicable|vulnerable|      |             |
+----------------+------+----------+----------+----------+------+-------------+
|                |6.x   |None      |Not       |          |      |             |
|BIG-IQ          |      |          |applicable|Not       |      |             |
|Centralized     +------+----------+----------+vulnerable|None  |None         |
|Management      |5.x   |None      |Not       |          |      |             |
|                |      |          |applicable|          |      |             |
+----------------+------+----------+----------+----------+------+-------------+
|F5 iWorkflow    |2.x   |None      |Not       |Not       |None  |None         |
|                |      |          |applicable|vulnerable|      |             |
+----------------+------+----------+----------+----------+------+-------------+
|Traffix SDC     |5.x   |None      |Not       |Not       |None  |None         |
|                |      |          |applicable|vulnerable|      |             |
+----------------+------+----------+----------+----------+------+-------------+

^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

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

- --------------------------END INCLUDED TEXT--------------------

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