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

                              ESB-2020.1657.2
         BIG-IP Edge Client for Windows - multiple vulnerabilities
                               31 July 2020

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

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

Product:           F5 BIG-IP products
Publisher:         F5 Networks
Operating System:  Network Appliance
                   Linux variants
                   Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account            
                   Increased Privileges            -- Existing Account            
                   Denial of Service               -- Existing Account            
                   Provide Misleading Information  -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-5898 CVE-2020-5897 CVE-2020-5896

Original Bulletin: 
   https://support.f5.com/csp/article/K15478554
   https://support.f5.com/csp/article/K20346072
   https://support.f5.com/csp/article/K69154630

Revision History:  July 31 2020: K20346072: Fixes introduced for BIG-IP (APM) branch 12.x
                   May  12 2020: Initial Release

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

K15478554:BIG-IP Edge Client for Windows vulnerability CVE-2020-5896

Security Advisory

Original Publication Date: 12 May, 2020

Security Advisory Description

The BIG-IP Edge Client Windows Installer Service's temporary folder has weak
file and folder permissions, and allows execution of signed .exe and MSI files.
(CVE-2020-5896)

Impact

This vulnerability can be exploited to allow an unprivileged user to gain
privilege escalation on the client Windows system.

Security Advisory Status

F5 Product Development has assigned ID 881293, ID 881317 (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, point 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|          |          |      |            |
+-----------------+------+----------+----------+----------+------+------------+
|                 |15.x  |15.0.0 -  |None      |          |      |            |
|                 |      |15.1.0    |          |          |      |            |
|                 +------+----------+----------+          |      |            |
|                 |14.x  |14.1.0 -  |None      |          |      |            |
|                 |      |14.1.2    |          |          |      |BIG-IP Edge |
|                 +------+----------+----------+          |      |Client      |
|BIG-IP (APM)     |13.x  |13.1.0 -  |None      |High      |7.0   |Windows     |
|                 |      |13.1.3    |          |          |      |Component   |
|                 +------+----------+----------+          |      |Installer   |
|                 |12.x  |12.1.0 -  |None      |          |      |service     |
|                 |      |12.1.5    |          |          |      |            |
|                 +------+----------+----------+          |      |            |
|                 |11.x  |11.6.1 -  |None      |          |      |            |
|                 |      |11.6.5    |          |          |      |            |
+-----------------+------+----------+----------+----------+------+------------+
|                 |      |          |          |          |      |BIG-IP Edge |
|                 |      |          |          |          |      |Client      |
|BIG-IP APM       |7.1.x |7.1.5 -   |None^2    |High      |7.0   |Windows     |
|Clients          |      |7.1.9     |          |          |      |Component   |
|                 |      |          |          |          |      |Installer   |
|                 |      |          |          |          |      |service     |
+-----------------+------+----------+----------+----------+------+------------+
|                 |15.x  |None      |Not       |          |      |            |
|                 |      |          |applicable|          |      |            |
|                 +------+----------+----------+          |      |            |
|                 |14.x  |None      |Not       |          |      |            |
|BIG-IP (LTM, AAM,|      |          |applicable|          |      |            |
|AFM, Analytics,  +------+----------+----------+          |      |            |
|ASM, DNS, FPS,   |13.x  |None      |Not       |Not       |None  |None        |
|GTM, Link        |      |          |applicable|vulnerable|      |            |
|Controller, PEM) +------+----------+----------+          |      |            |
|                 |12.x  |None      |Not       |          |      |            |
|                 |      |          |applicable|          |      |            |
|                 +------+----------+----------+          |      |            |
|                 |11.x  |None      |Not       |          |      |            |
|                 |      |          |applicable|          |      |            |
+-----------------+------+----------+----------+----------+------+------------+
|                 |7.x   |None      |Not       |          |      |            |
|                 |      |          |applicable|          |      |            |
|BIG-IQ           +------+----------+----------+          |      |            |
|Centralized      |6.x   |None      |Not       |Not       |None  |None        |
|Management       |      |          |applicable|vulnerable|      |            |
|                 +------+----------+----------+          |      |            |
|                 |5.x   |None      |Not       |          |      |            |
|                 |      |          |applicable|          |      |            |
+-----------------+------+----------+----------+----------+------+------------+
|Traffix SDC      |5.x   |None      |Not       |Not       |None  |None        |
|                 |      |          |applicable|vulnerable|      |            |
+-----------------+------+----------+----------+----------+------+------------+

^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.

^2In BIG-IP APM 13.1.0 and later, the APM Clients components can be updated
independently from BIG-IP software. For more information, refer to K52547540:
Updating BIG-IP Edge Client for the BIG-IP APM system and K13757: BIG-IP Edge
Client version matrix.

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 Juliette Chapalain of Red Team/CERT Societe
Generale for bringing this issue to our attention and for following the highest
standards of coordinated 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 - 15.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

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

K20346072:BIG-IP Edge Client for Windows vulnerability CVE-2020-5897

Security Advisory

Original Publication Date: 12 May, 2020

Latest   Publication Date: 31 Jul, 2020

Security Advisory Description

A use-after-free memory vulnerability exists in the BIG-IP Edge Client Windows
ActiveX component. (CVE-2020-5897)

Impact

This vulnerability allows an attacker to trigger memory corruption to the
browser or execute code from the browser when the attacker crafts a malicious
webpage and loads it into the Internet Explorer browser by BIG-IP Edge Client
users.

Security Advisory Status

F5 Product Development has assigned IDs 882185 and 882189 (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, point 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|          |          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|                   |15.x  |15.0.0 -  |None[S:^2 |          |      |          |
|                   |      |15.1.0    |:S]       |          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |14.x  |14.1.0 -  |None[S:^2 |          |      |          |
|                   |      |14.1.2    |:S]       |          |      |BIG-IP    |
|                   +------+----------+----------+          |      |Edge      |
|BIG-IP (APM)       |13.x  |13.1.0 -  |None[S:^2 |High      |8.8   |Client    |
|                   |      |13.1.3    |:S]       |          |      |Windows   |
|                   +------+----------+----------+          |      |ActiveX   |
|                   |12.x  |12.1.0 -  |12.1.5.2^3|          |      |          |
|                   |      |12.1.5    |          |          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |11.x  |11.6.1 -  |None      |          |      |          |
|                   |      |11.6.5    |          |          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|                   |      |          |          |          |      |BIG-IP    |
|BIG-IP APM Clients^|      |7.1.5 -   |None[S:^2 |          |      |Edge      |
|2                  |7.1.x |7.1.9     |:S]       |High      |8.8   |Client    |
|                   |      |          |          |          |      |Windows   |
|                   |      |          |          |          |      |ActiveX   |
+-------------------+------+----------+----------+----------+------+----------+
|                   |15.x  |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |14.x  |None      |Not       |          |      |          |
|BIG-IP (LTM, AAM,  |      |          |applicable|          |      |          |
|AFM, Analytics,    +------+----------+----------+          |      |          |
|ASM, DNS, FPS, GTM,|13.x  |None      |Not       |Not       |None  |None      |
|Link Controller,   |      |          |applicable|vulnerable|      |          |
|PEM)               +------+----------+----------+          |      |          |
|                   |12.x  |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |11.x  |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|                   |7.x   |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
|                   +------+----------+----------+          |      |          |
|BIG-IQ Centralized |6.x   |None      |Not       |Not       |None  |None      |
|Management         |      |          |applicable|vulnerable|      |          |
|                   +------+----------+----------+          |      |          |
|                   |5.x   |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|Traffix SDC        |5.x   |None      |Not       |Not       |None  |None      |
|                   |      |          |applicable|vulnerable|      |          |
+-------------------+------+----------+----------+----------+------+----------+

^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.

^2In BIG-IP APM 13.1.0 and later, you can update APM Clients
components independently from BIG-IP software. For more information, refer to 
K52547540: Updating BIG-IP Edge Client for the BIG-IP APM system and K13757:
BIG-IP Edge Client version matrix.

^3As the vulnerable component is the ActiveX component on Windows, after
updating the BIG-IP APM system, you must set the automatic update feature (
Component Update) to yes (default setting) on the BIG-IP APM system. For more
information, refer to K15302: Understanding BIG-IP Edge Client Component Update
behavior for Windows, Mac OS, and Linux CLI.

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 Juliette Chapalain of Red Team/CERT Societe
Generale for bringing this issue to our attention and for following the highest
standards of coordinated 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 - 16.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

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

K69154630:BIG-IP Edge Client for Windows vulnerability CVE-2020-5898

Security Advisory

Original Publication Date: 12 May, 2020

Security Advisory Description

The BIG-IP Edge Client Windows Stonewall driver does not sanitize the pointer
received from the userland. A local user on the Windows client system can send
crafted DeviceIoControl requests to a \\.\urvpndrv device causing the Windows
kernel to crash. (CVE-2020-5898)

Impact

This vulnerability allows malicious local users to cause a denial-of-service
(DoS) on the client Windows system.

Security Advisory Status

F5 Product Development has assigned ID 881445 (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, point 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|          |          |      |           |
+------------------+------+----------+----------+----------+------+-----------+
|                  |15.x  |15.0.0 -  |None      |          |      |           |
|                  |      |15.1.0    |          |          |      |           |
|                  +------+----------+----------+          |      |           |
|                  |14.x  |14.1.0 -  |None      |          |      |           |
|                  |      |14.1.2    |          |          |      |BIG-IP Edge|
|BIG-IP (APM)      +------+----------+----------+          |      |Client     |
|                  |13.x  |13.1.0 -  |None      |Medium    |5.5   |Windows    |
|                  |      |13.1.3    |          |          |      |Stonewall  |
|                  +------+----------+----------+          |      |driver     |
|                  |12.x  |12.1.0 -  |None      |          |      |           |
|                  |      |12.1.5    |          |          |      |           |
|                  +------+----------+----------+          |      |           |
|                  |11.x  |11.6.1 -  |None      |          |      |           |
|                  |      |11.6.5    |          |          |      |           |
+------------------+------+----------+----------+----------+------+-----------+
|                  |      |          |          |          |      |BIG-IP Edge|
|                  |      |7.1.5 -   |          |          |      |Client     |
|APM Clients       |7.1.x |7.1.9     |None^2    |Medium    |5.5   |Windows    |
|                  |      |          |          |          |      |Stonewall  |
|                  |      |          |          |          |      |driver     |
+------------------+------+----------+----------+----------+------+-----------+
|                  |15.x  |None      |Not       |          |      |           |
|                  |      |          |applicable|          |      |           |
|                  +------+----------+----------+          |      |           |
|                  |14.x  |None      |Not       |          |      |           |
|BIG-IP (LTM, AAM, |      |          |applicable|          |      |           |
|AFM, Analytics,   +------+----------+----------+          |      |           |
|ASM, DNS, FPS,    |13.x  |None      |Not       |Not       |None  |None       |
|GTM, Link         |      |          |applicable|vulnerable|      |           |
|Controller, PEM)  +------+----------+----------+          |      |           |
|                  |12.x  |None      |Not       |          |      |           |
|                  |      |          |applicable|          |      |           |
|                  +------+----------+----------+          |      |           |
|                  |11.x  |None      |Not       |          |      |           |
|                  |      |          |applicable|          |      |           |
+------------------+------+----------+----------+----------+------+-----------+
|                  |7.x   |None      |Not       |          |      |           |
|                  |      |          |applicable|          |      |           |
|                  +------+----------+----------+          |      |           |
|BIG-IQ Centralized|6.x   |None      |Not       |Not       |None  |None       |
|Management        |      |          |applicable|vulnerable|      |           |
|                  +------+----------+----------+          |      |           |
|                  |5.x   |None      |Not       |          |      |           |
|                  |      |          |applicable|          |      |           |
+------------------+------+----------+----------+----------+------+-----------+
|Traffix SDC       |5.x   |None      |Not       |Not       |None  |None       |
|                  |      |          |applicable|vulnerable|      |           |
+------------------+------+----------+----------+----------+------+-----------+

^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.

^2In BIG-IP APM 13.1.0 and later, the APM Clients components can be updated
independently from BIG-IP software. For more information, refer to K52547540:
Updating BIG-IP Edge Client for the BIG-IP APM system and K13757: BIG-IP Edge
Client version matrix.

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 Juliette Chapalain of Red Team/CERT Societe
Generale for bringing this issue to our attention and for following the highest
standards of coordinated 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 - 15.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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===========================================================================
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