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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.3563 BIG-IP ASM vulnerability CVE-2019-6650 20 September 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: F5 BIG-IP ASM Publisher: F5 Networks Operating System: Network Appliance Impact/Access: Access Confidential Data -- Remote/Unauthenticated Unauthorised Access -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-6650 Original Bulletin: https://support.f5.com/csp/article/K04280042 - --------------------------BEGIN INCLUDED TEXT-------------------- K04280042:BIG-IP ASM vulnerability CVE-2019-6650 Security Advisory Original Publication Date: 20 Sep, 2019 Security Advisory Description F5 BIG-IP ASM may expose sensitive information and allow the system configuration to be modified when using non-default settings. (CVE-2019-6650) Impact The vulnerability is only present on multi-bladed systems (VIPRION) with BIG-IP ASM provisioned, on the following interfaces: o Management interface in versions before BIG-IP 14.1.0. o Any self IP with Port Lockdown configured as Allow All. Note: Port Lockdown defaults to Allow None. In both of the previous configurations, a malicious actor may be able to connect to the affected interface to extract and/or modify sensitive information on the system. Security Advisory Status F5 Product Development has assigned ID 807477 (BIG-IP ASM) 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 | | |or feature| | | |vulnerable| | | | | +-------------------+------+----------+----------+----------+------+----------+ | |15.x |15.0.0 |15.0.1 | | | | | +------+----------+----------+ | | | | |14.x |14.1.0 |14.1.2 | | | | | | |14.0.0 |14.0.1 | | | | | +------+----------+----------+ | | | | |13.x |13.1.0 - |13.1.3 | | | | |BIG-IP (ASM) | |13.1.1 | | | | | | +------+----------+----------+Critical |9.1 |BIG-IP ASM| | |12.x |12.1.0 - |12.1.5 | | | | | | |12.1.4 | | | | | | +------+----------+----------+ | | | | | |11.6.1 - | | | | | | |11.x |11.6.4 |11.6.5 | | | | | | |11.5.2 - |11.5.10 | | | | | | |11.5.9 | | | | | +-------------------+------+----------+----------+----------+------+----------+ | |15.x |None |Not | | | | | | | |applicable| | | | | +------+----------+----------+ | | | |BIG-IP (LTM, AAM, |14.x |None |Not | | | | |AFM, Analytics, | | |applicable| | | | |APM, DNS, Edge +------+----------+----------+ | | | |Gateway, FPS, GTM, |13.x |None |Not |Not |None |None | |Link Controller, | | |applicable|vulnerable| | | |PEM, +------+----------+----------+ | | | |WebAccelerator) |12.x |None |Not | | | | | | | |applicable| | | | | +------+----------+----------+ | | | | |11.x |None |Not | | | | | | | |applicable| | | | +-------------------+------+----------+----------+----------+------+----------+ |Enterprise Manager |3.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +-------------------+------+----------+----------+----------+------+----------+ | |7.x |None |Not | | | | | | | |applicable| | | | | +------+----------+----------+ | | | |BIG-IQ Centralized |6.x |None |Not |Not |None |None | |Management | | |applicable|vulnerable| | | | +------+----------+----------+ | | | | |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| | | +-------------------+------+----------+----------+----------+------+----------+ 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 F5 recommends upgrading to a fixed software version to fully mitigate this vulnerability. Note: It is not possible to provide these fixes in an engineering hotfix for prior versions of software. A full upgrade to a fixed release version is required. If you are unable to upgrade the affected systems at this time, you may consider using the following as an interim fix: Self IP Change the self IP port lockdown settings from Allow All to Allow None or Allow Default. If you require additional ports to be opened, you should use Allow Custom. F5 recommends avoiding the use of Allow All entirely. For more information about configuring the port lockdown settings, refer to K17333: Overview of port lockdown behavior (12.x - 15.x). Management interface Beginning in BIG-IP 14.1.0, the default iptables firewall rule for the management interface blocks remote access to the BIG-IP ASM processes, preventing exploitation of this issue on the management interface. F5 recommends upgrading systems running BIG-IP 14.1.0 or later to resolve the underlying issue, preventing exposure if the rule is removed. For versions prior to BIG-IP 14.1.0, there is no full mitigation available other than upgrading to a fixed software version. A partial mitigation is available from F5 Support. - --------------------------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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