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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.2383.4 K52320548: Expat vulnerability CVE-2016-0718 26 July 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: F5 Products Publisher: F5 Networks Operating System: Network Appliance Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2016-0718 Reference: ESB-2016.2815 Original Bulletin: https://support.f5.com/csp/article/K52320548 Revision History: July 26 2018: Updated security advisory status table. June 19 2018: Updated security advisory status table. April 4 2018: Updated "Security Advisory Status" section September 21 2017: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- K52320548: Expat vulnerability CVE-2016-0718 Security Advisory Original Publication Date: Sep 19, 2017 Updated Date: Jul 24, 2018 Security Advisory Description An out-of-bounds read flaw was found in the way Expat processed certain input. A remote attacker could send specially crafted XML that, when parsed by an application using the Expat library, would cause that application to crash or, possibly, execute arbitrary code with the permission of the user running the application. (CVE-2016-0718) Impact A remote attacker could send specially crafted XML which, when parsed by an application using the Expat library, would cause that application to stop responding or possibly run arbitrary code with the permission of the user running the application. BIG-IP ASM control plane An authenticated user with the relevant privileges, such as Web Application Security Editor, can exploit the vulnerability and gain full control of the system. big3d/gtmd The big3d/gtmd processes may be exposed to this vulnerability over the management port and self IP addresses when the Port Lockdown setting is set to Default, All, or Custom with TCP port 4353 included. The impact for the big3d process is a temporary disruption in the communication between peer systems until the system automatically restarts the big3d process. Security Advisory Status F5 Product Development has assigned IDs 630446 and 674189 (BIG-IP) and ID 677266 (Enterprise Manager) to this vulnerability. Additionally, BIG-IP iHealth may list Heuristic H52320548 on the Diagnostics > Identified > High 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 known|Versions known | |Vulnerable | |Product |to be |to be not |Severity |component or | | |vulnerable |vulnerable | |feature | +--------------+--------------+----------------+----------+-------------------+ | |13.0.0 | | | | | |12.0.0 - |13.1.0 | | | | |12.1.3 |13.0.1 | | | |BIG-IP LTM |11.6.0 - |12.1.3.2 |High |iControl SOAP, | | |11.6.3 |11.6.3.2 | |eventd | | |11.4.1 - |11.5.7 | | | | |11.5.6 | | | | | |11.2.1 | | | | +--------------+--------------+----------------+----------+-------------------+ | |13.0.0 | | | | | |12.0.0 - |13.1.0 | | | | |12.1.3 |13.0.1 | |iControl SOAP, | |BIG-IP AAM |11.6.0 - |12.1.3.2 |High |eventd | | |11.6.3 |11.6.3.2 | | | | |11.4.1 - |11.5.7 | | | | |11.5.6 | | | | +--------------+--------------+----------------+----------+-------------------+ | |13.0.0 | | | | | |12.0.0 - |13.1.0 | | | | |12.1.3 |13.0.1 | |iControl SOAP, | |BIG-IP AFM |11.6.0 - |12.1.3.2 |High |eventd | | |11.6.3 |11.6.3.2 | | | | |11.4.1 - |11.5.7 | | | | |11.5.6 | | | | +--------------+--------------+----------------+----------+-------------------+ | |13.0.0 | | | | | |12.0.0 - | | | | | |12.1.3 |13.1.0 | | | |BIG-IP |11.6.0 - |13.0.1 |High |iControl SOAP, | |Analytics |11.6.3 |12.1.3.2 | |eventd | | |11.4.1 - |11.5.7 | | | | |11.5.6 | | | | | |11.2.1 | | | | +--------------+--------------+----------------+----------+-------------------+ | |13.0.0 | | | | | |12.0.0 - |13.1.0 | | | | |12.1.3 |13.0.1 | | | |BIG-IP APM |11.6.0 - |12.1.3.2 |High |iControl SOAP, | | |11.6.3 |11.6.3.2 | |eventd | | |11.4.1 - |11.5.7 | | | | |11.5.6 | | | | | |11.2.1 | | | | +--------------+--------------+----------------+----------+-------------------+ | |13.0.0 | | | | | |12.0.0 - |13.1.0 | | | | |12.1.3 |13.0.1 | |ASM control plane, | |BIG-IP ASM |11.6.0 - |12.1.3.2 |High |iControl SOAP, | | |11.6.3 |11.6.3.2 | |eventd | | |11.4.1 - |11.5.7 | | | | |11.5.6 | | | | | |11.2.1 | | | | +--------------+--------------+----------------+----------+-------------------+ | |13.0.0 |13.1.0 | |big3d, gtmd, | |BIG-IP DNS |12.0.0 - |13.0.1 |High |iControl SOAP, | | |12.1.3 |12.1.3.2 | |eventd | +--------------+--------------+----------------+----------+-------------------+ |BIG-IP Edge |11.2.1 |None |High |iControl SOAP, | |Gateway | | | |eventd | +--------------+--------------+----------------+----------+-------------------+ | |11.6.0 - | | | | | |11.6.3 |11.6.3.2 | |big3d, gtmd, | |BIG-IP GTM |11.4.1 - |11.5.7 |High |iControl SOAP, | | |11.5.6 | | |eventd | | |11.2.1 | | | | +--------------+--------------+----------------+----------+-------------------+ | |13.0.0 | | | | | |12.0.0 - |13.1.0 | | | | |12.1.3 |13.0.1 | |big3d, gtmd, | |BIG-IP Link |11.6.0 - |12.1.3.2 |High |iControl SOAP, | |Controller |11.6.3 |11.6.3.2 | |eventd | | |11.4.1 - |11.5.7 | | | | |11.5.6 | | | | | |11.2.1 | | | | +--------------+--------------+----------------+----------+-------------------+ | |13.0.0 | | | | | |12.0.0 - |13.1.0 | | | | |12.1.3 |13.0.1 | |iControl SOAP, | |BIG-IP PEM |11.6.0 - |12.1.3.2 |High |eventd | | |11.6.3 |11.6.3.2 | | | | |11.4.1 - |11.5.7 | | | | |11.5.6 | | | | +--------------+--------------+----------------+----------+-------------------+ |BIG-IP PSM |11.4.1 |None |High |iControl SOAP, | | | | | |eventd | +--------------+--------------+----------------+----------+-------------------+ |BIG-IP |11.2.1 |None |High |iControl SOAP, | |WebAccelerator| | | |eventd | +--------------+--------------+----------------+----------+-------------------+ | |13.0.0 |13.1.0 | | | | |12.0.0 - |13.0.1 | |iControl SOAP, | |BIG-IP WebSafe|12.1.3 |12.1.3.2 |High |eventd | | |11.6.0 - |11.6.3.2 | | | | |11.6.3 |11.5.7 | | | +--------------+--------------+----------------+----------+-------------------+ |ARX |None |6.2.0 - 6.4.0 |Not |None | | | | |vulnerable| | +--------------+--------------+----------------+----------+-------------------+ |Enterprise |3.1.1 |None |Medium |iControlPortal.cgi | |Manager | | | | | +--------------+--------------+----------------+----------+-------------------+ |BIG-IQ Cloud |None |4.4.0 - 4.5.0 |Not |None | | | | |vulnerable| | +--------------+--------------+----------------+----------+-------------------+ |BIG-IQ Device |None |4.4.0 - 4.5.0 |Not |None | | | | |vulnerable| | +--------------+--------------+----------------+----------+-------------------+ |BIG-IQ |None |4.4.0 - 4.5.0 |Not |None | |Security | | |vulnerable| | +--------------+--------------+----------------+----------+-------------------+ |BIG-IQ ADC |None |4.5.0 |Not |None | | | | |vulnerable| | +--------------+--------------+----------------+----------+-------------------+ |BIG-IQ | |5.0.0 - 5.3.0 |Not | | |Centralized |None |4.6.0 |vulnerable|None | |Management | | | | | +--------------+--------------+----------------+----------+-------------------+ |BIG-IQ Cloud | | |Not | | |and |None |1.0.0 |vulnerable|None | |Orchestration | | | | | +--------------+--------------+----------------+----------+-------------------+ |F5 iWorkflow |None |2.0.0 - 2.3.0 |Not |None | | | | |vulnerable| | +--------------+--------------+----------------+----------+-------------------+ |LineRate |None |2.5.0 - 2.6.2 |Not |None | | | | |vulnerable| | +--------------+--------------+----------------+----------+-------------------+ |Traffix SDC |None |5.0.0 - 5.1.0 |Not |None | | | |4.0.0 - 4.4.0 |vulnerable| | +--------------+--------------+----------------+----------+-------------------+ 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. Mitigation iControl SOAP, eventd and BIG-IP ASM control plane To mitigate this vulnerability for iControl SOAP, the eventd process, and the BIG-IP ASM control plane, permit management access to F5 products only over a secure network and restrict command line access for affected systems to trusted users. For more information, refer to K13309: Restricting access to the Configuration utility by source IP address (11.x - 13.x) and K13092: Overview of securing access to the BIG-IP system. big3d/gtmd To mitigate this vulnerability for the big3d/gtmd process, limit connections to port 4353 to trusted hosts. For more information, refer to K13309: Restricting access to the Configuration utility by source IP address (11.x - 13.x). Note: If you run big3d_install on BIG-IP versions prior to 11.5.0, it is possible that you may install a vulnerable version of big3d on systems that are running non-vulnerable versions of the BIG-IP system. In this case, upgrade to a fixed version or hotfix, and refer to K13312: Overview of the BIG-IP DNS big3d_install, bigip_add, and gtm_add utilities (11.x - 13.x) for information about running big3d_install to resolve the issue. Note: The iquery protocol used by the BIG-IP DNS system (formerly BIG-IP GTM) also uses port 4353. Ensure that all of the peer devices are included when you limit connections by IP address. Supplemental Information o K17329: BIG-IP GTM name has changed to BIG-IP DNS 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 o K9502: BIG-IP hotfix and point release matrix - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. 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If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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