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AUSCERT External Security Bulletin Redistribution
ESB-2016.2097.3
sol65460334: Expat XML parser vulnerability CVE-2012-6702
13 November 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: F5 ARX
F5 Enterprise Manager
F5 BIG-IQ
F5 iWorkflow
F5 Traffix SDC
Publisher: F5 Networks
Operating System: Network Appliance
Virtualisation
Impact/Access: Reduced Security -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2012-6702
Reference: ESB-2016.1433
Original Bulletin:
https://support.f5.com/kb/en-us/solutions/public/k/65/sol65460334.html
Revision History: November 13 2020: Vendor updated advisory
March 5 2018: Bulletin updated & fixed software released
September 7 2016: Initial Release
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K65460334: Expat XML parser vulnerability CVE-2012-6702
Original Publication Date: 07 Sep, 2016
Latest Publication Date: 12 Nov, 2020
Security Advisory Description
Expat, when used in a parser that has not called XML_SetHashSalt or passed it a
seed of 0, makes it easier for context-dependent attackers to defeat
cryptographic protection mechanisms via vectors involving use of the srand
function. (CVE-2012-6702)
Impact
An attacker may be able to defeat cryptographic protection mechanisms using the
srand function.
This vulnerability exists for iControl Simple Object Access Protocol (SOAP) in
the rare instance when a client uses the Expat parser provided in the iControl
library and, within the same process, calls srand() to generate cryptographic
values.
Security Advisory Status
F5 Product Development has assigned ID 605579 (BIG-IP), ID 608756 (BIG-IQ), ID
608756-2 (F5 iWorkflow), ID 608757 (Enterprise Manager), and ID 528541 (ARX) to
this vulnerability. Additionally, BIG-IP iHealth may list Heuristic H613627 on
the Diagnostics > Identified > Low page.
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 |Versions | | |
|Product |known to be |known to be |Severity |Vulnerable component or |
| |vulnerable |not | |feature |
| | |vulnerable | | |
+--------------+------------+-------------+----------+------------------------+
| | |13.0.0 - | | |
| | |13.1.0 | | |
| | |12.1.3.2 | | |
| | |12.0.0 - | | |
|BIG-IP LTM |12.1.2 - |12.1.1 |Low |Expat library |
| |12.1.3 |11.4.0 - | | |
| | |11.6.3 | | |
| | |11.2.1 | | |
| | |10.2.1 - | | |
| | |10.2.4 | | |
+--------------+------------+-------------+----------+------------------------+
| | |13.0.0 - | | |
| | |13.1.0 | | |
| |12.1.2 - |12.1.3.2 | | |
|BIG-IP AAM |12.1.3 |12.0.0 - |Low |Expat library |
| | |12.1.1 | | |
| | |11.4.0 - | | |
| | |11.6.3 | | |
+--------------+------------+-------------+----------+------------------------+
| | |13.0.0 - | | |
| | |13.1.0 | | |
| |12.1.2 - |12.1.3.2 | | |
|BIG-IP AFM |12.1.3 |12.0.0 - |Low |Expat library |
| | |12.1.1 | | |
| | |11.4.0 - | | |
| | |11.6.3 | | |
+--------------+------------+-------------+----------+------------------------+
| | |13.0.0 - | | |
| | |13.1.0 | | |
| | |12.1.3.2 | | |
|BIG-IP |12.1.2 - |12.0.0 - |Low |Expat library |
|Analytics |12.1.3 |12.1.1 | | |
| | |11.4.0 - | | |
| | |11.6.3 | | |
| | |11.2.1 | | |
+--------------+------------+-------------+----------+------------------------+
| | |13.0.0 - | | |
| | |13.1.0 | | |
| | |12.1.3.2 | | |
| | |12.0.0 - | | |
|BIG-IP APM |12.1.2 - |12.1.1 |Low |Expat library |
| |12.1.3 |11.4.0 - | | |
| | |11.6.3 | | |
| | |11.2.1 | | |
| | |10.2.1 - | | |
| | |10.2.4 | | |
+--------------+------------+-------------+----------+------------------------+
| | |13.0.0 - | | |
| | |13.1.0 | | |
| | |12.1.3.2 | | |
| | |12.0.0 - | | |
|BIG-IP ASM |12.1.2 - |12.1.1 |Low |Expat library |
| |12.1.3 |11.4.0 - | | |
| | |11.6.3 | | |
| | |11.2.1 | | |
| | |10.2.1 - | | |
| | |10.2.4 | | |
+--------------+------------+-------------+----------+------------------------+
| | |13.0.0 - | | |
| |12.1.2 - |13.1.0 | | |
|BIG-IP DNS |12.1.3 |12.1.3.2 |Low |Expat library |
| | |12.0.0 - | | |
| | |12.1.1 | | |
+--------------+------------+-------------+----------+------------------------+
|BIG-IP Edge | |11.2.1 |Not | |
|Gateway |None |10.2.1 - |vulnerable|None |
| | |10.2.4 | | |
+--------------+------------+-------------+----------+------------------------+
| | |11.4.0 - | | |
| | |11.6.3 |Not | |
|BIG-IP GTM |None |11.2.1 |vulnerable|None |
| | |10.2.1 - | | |
| | |10.2.4 | | |
+--------------+------------+-------------+----------+------------------------+
| | |13.0.0 - | | |
| | |13.1.0 | | |
| | |12.1.3.2 | | |
| | |12.0.0 - | | |
|BIG-IP Link |12.1.2 - |12.1.1 |Low |Expat library |
|Controller |12.1.3 |11.4.0 - | | |
| | |11.6.3 | | |
| | |11.2.1 | | |
| | |10.2.1 - | | |
| | |10.2.4 | | |
+--------------+------------+-------------+----------+------------------------+
| | |13.0.0 - | | |
| | |13.1.0 | | |
| |12.1.2 - |12.1.3.2 | | |
|BIG-IP PEM |12.1.3 |12.0.0 - |Low |Expat library |
| | |12.1.1 | | |
| | |11.4.0 - | | |
| | |11.6.3 | | |
+--------------+------------+-------------+----------+------------------------+
| | |11.4.0 - | | |
|BIG-IP PSM |None |11.4.1 |Not |None |
| | |10.2.1 - |vulnerable| |
| | |10.2.4 | | |
+--------------+------------+-------------+----------+------------------------+
|BIG-IP | |11.2.1 |Not | |
|WebAccelerator|None |10.2.1 - |vulnerable|None |
| | |10.2.4 | | |
+--------------+------------+-------------+----------+------------------------+
| | |11.2.1 |Not | |
|BIG-IP WOM |None |10.2.1 - |vulnerable|None |
| | |10.2.4 | | |
+--------------+------------+-------------+----------+------------------------+
| | |13.0.0 - | | |
| | |13.1.0 | | |
| |12.1.2 - |12.1.3.2 | | |
|BIG-IP WebSafe|12.1.3 |12.0.0 - |Low |Expat library |
| | |12.1.1 | | |
| | |11.6.0 - | | |
| | |11.6.3 | | |
+--------------+------------+-------------+----------+------------------------+
|ARX |6.2.0 - |None |Low |Expat library |
| |6.4.0 | | | |
+--------------+------------+-------------+----------+------------------------+
| | | | |iControl SOAP, HTTPD, |
|Enterprise |3.1.1 |None |Low |big3d, eventd, |
|Manager | | | |Enterprise Manager |
| | | | |daemons |
+--------------+------------+-------------+----------+------------------------+
|FirePass |None |7.0.0 |Not |None |
| | | |vulnerable| |
+--------------+------------+-------------+----------+------------------------+
|BIG-IQ Cloud |4.0.0 - |None |Low |iControl SOAP, HTTPD, |
| |4.5.0 | | |big3d, eventd |
+--------------+------------+-------------+----------+------------------------+
|BIG-IQ Device |4.2.0 - |None |Low |iControl SOAP, HTTPD, |
| |4.5.0 | | |big3d, eventd |
+--------------+------------+-------------+----------+------------------------+
|BIG-IQ |4.0.0 - |None |Low |iControl SOAP, HTTPD, |
|Security |4.5.0 | | |big3d, eventd |
+--------------+------------+-------------+----------+------------------------+
|BIG-IQ ADC |4.5.0 |None |Low |iControl SOAP, HTTPD, |
| | | | |big3d, eventd |
+--------------+------------+-------------+----------+------------------------+
| |7.0.0 - | | | |
| |7.1.0 | | | |
|BIG-IQ |6.0.0 - | | |iControl SOAP, HTTPD, |
|Centralized |6.1.0 |None |Low |big3d, eventd |
|Management |5.0.0 - | | | |
| |5.4.0 | | | |
| |4.6.0 | | | |
+--------------+------------+-------------+----------+------------------------+
|BIG-IQ Cloud | | | |iControl SOAP, HTTPD, |
|and |1.0.0 |None |Low |big3d, eventd |
|Orchestration | | | | |
+--------------+------------+-------------+----------+------------------------+
|F5 iWorkflow |2.0.0 |None |Low |iControl SOAP, HTTPD, |
| | | | |big3d, eventd |
+--------------+------------+-------------+----------+------------------------+
|LineRate |None |2.5.0 - 2.6.1|Not |None |
| | | |vulnerable| |
+--------------+------------+-------------+----------+------------------------+
| |5.0.0 | | | |
|Traffix SDC |4.0.0 - |None |Low |Expat library |
| |4.4.0 | | | |
+--------------+------------+-------------+----------+------------------------+
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 Versions known to be not vulnerable 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.
To determine the necessary upgrade path for your BIG-IQ system, you should
understand the BIG-IQ product offering name changes. For more information,
refer to K21232150: Considerations for upgrading BIG-IQ or F5 iWorkflow systems
.
Mitigation
To mitigate this vulnerability for iControl SOAP, you can upgrade the client
SDK Expat library to version 2.2.0.
Supplemental Information
o K9970: Subscribing to email notifications regarding F5 products
o K9957: Creating a custom RSS feed to view new and updated documents
o K4602: Overview of the F5 security vulnerability response policy
o K4918: Overview of the F5 critical issue hotfix policy
o K167: Downloading software and firmware from F5
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