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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.0137 BIG-IP engineering hotfix Trusted Platform Module vulnerability 14 January 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: BIG-IP products Publisher: F5 Networks Operating System: Network Appliance Impact/Access: Provide Misleading Information -- Remote/Unauthenticated Resolution: Mitigation CVE Names: CVE-2020-5851 Original Bulletin: https://support.f5.com/csp/article/K91171450 - --------------------------BEGIN INCLUDED TEXT-------------------- K91171450:BIG-IP engineering hotfix Trusted Platform Module vulnerability CVE-2020-5851 Security Advisory Original Publication Date: 14 Jan, 2020 Security Advisory Description On impacted versions and platforms, the Trusted Platform Module (TPM) system integrity check cannot detect modifications to specific system components. ( CVE-2020-5851) Impact BIG-IP: The Trusted Platform Module (TPM) on the BIG-IP iSeries platforms (i850, i2000, i4000, i5000, i7000, i10000, i11000, i15000) and the VIPRION B4450 blades fails to function properly and is unable to detect any potential security compromise of the affected systems. This does not impact any other hardware platform. Important: This vulnerability impacts only BIG-IP Engineering hotfixes obtained from F5 Support. Refer to the table in the following section for the list of affected versions. To verify if you are running an affected version from this list, perform the procedure in the Recommended Actions section. This vulnerability does not affect any of the BIG-IP major, minor, maintenance, or point releases you obtained from F5 Downloads. BIG-IQ / Traffix SDC: There is no impact; these F5 products are not affected by this vulnerability. Security Advisory Status F5 Product Development has assigned ID 788033 (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. For more information about security advisory versioning, refer to K51812227: Understanding Security Advisory versioning. +---------------+------+---------------------------------+----------+----------+------+----------+ | | | |Fixes | |CVSSv3|Vulnerable| |Product |Branch|Versions known to be vulnerable |introduced|Severity |score^|component | | | | |in | |1 |or feature| +---------------+------+---------------------------------+----------+----------+------+----------+ | |15.x |None |Not | | | | | | | |applicable| | | | | +------+---------------------------------+----------+ | | | |BIG-IP (LTM, | |Hotfix-BIGIP-14.1.0.2.0.45.4-ENG^| | | | | |AAM, AFM, |14.x |2 |Not | | | | |Analytics, APM,| |Hotfix-BIGIP-14.1.0.2.0.62.4-ENG^|applicable| | | | |ASM, DNS, Edge | |2 | | | | | |Gateway, FPS, +------+---------------------------------+----------+Medium |4.6 |TPM | |GTM, Link |13.x |None |Not | | | | |Controller, | | |applicable| | | | |PEM, +------+---------------------------------+----------+ | | | |WebAccelerator)|12.x |None |Not | | | | | | | |applicable| | | | | +------+---------------------------------+----------+ | | | | |11.x |None |Not | | | | | | | |applicable| | | | +---------------+------+---------------------------------+----------+----------+------+----------+ | |6.x |None |Not | | | | |BIG-IQ | | |applicable|Not | | | |Centralized +------+---------------------------------+----------+vulnerable|None |None | |Management |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. ^2This vulnerability affects only the following items: these engineering hotfixes based on BIG-IP 14.1.0.2; BIG-IP iSeries platforms; and VIPRION B4450 blades. It does not affect any of the BIG-IP major, minor, maintenance, or point releases you obtained from F5 Downloads. Security Advisory Recommended Actions Your BIG-IP system is affected by this vulnerability when your BIG-IP system (the BIG-IP iSeries platforms or the VIPRION B4450 blades) is running an engineering hotfix version listed in the table. To verify your BIG-IP system's version and hardware platform, perform the following procedure: Impact of procedure: Performing the following procedure should not have a negative impact on your system. 1. Log in to the TMOS Shell (tmsh) by typing the following command: tmsh 2. Display your BIG-IP system hardware platform by typing the following command: show /sys hardware If your BIG-IP hardware platform is neither the BIG-IP iSeries platforms nor the VIPRION B4450 blade, your system is not vulnerable. If your BIG-IP hardware platform is either the BIG-IP iSeries platforms or the VIPRION B4450 blade, do the following to determine the BIG-IP version: Enter the following command: show /sys version Your BIG-IP version displays. If the version is not one of the engineering hotfix versions listed in the table, your system is not vulnerable. Mitigation After you perform the previous procedure, if you determine that your BIG-IP version is vulnerable, you can obtain an engineering hotfix by contacting F5 Support, and referencing this article number and the associated ID number. Note that engineering hotfixes are intended to resolve a specific software issue until a suitable minor release, maintenance release, or cumulative hotfix rollup release is available that includes the software fix. For more information, refer to K8986: F5 software lifecycle policy. 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 K55025573: Engineering hotfix installation overview 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 o K58311205: Overview of Local Attestation and Remote Attestation with TPM on the BIG-IP system o The Trusted Platform Module TPM chapter of the BIG-IP System: Essentials guide Note: For information about how to locate F5 product manuals, refer to K98133564: Tips for searching AskF5 and finding product documentation. - --------------------------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. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. 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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