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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.2286 A vulnerability in the Alpine Linux container affects F5 BIG-IP Controller for Cloud Foundry 25 June 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: F5 BIG-IP Controller for Cloud Foundry Publisher: F5 Networks Operating System: Virtualisation Network Appliance Impact/Access: Root Compromise -- Remote/Unauthenticated Resolution: None CVE Names: CVE-2019-5021 Reference: ASB-2019.0136 ESB-2019.1923 Original Bulletin: https://support.f5.com/csp/article/K25551452 - --------------------------BEGIN INCLUDED TEXT-------------------- K25551452: Alpine Linux Docker image vulnerability CVE-2019-5021 Security Advisory Original Publication Date: Jun 25, 2019 Security Advisory Description Versions of the Official Alpine Linux Docker images (since v3.3) contain a NULL password for the `root` user. This vulnerability appears to be the result of a regression introduced in December of 2015. Due to the nature of this issue, systems deployed using affected versions of the Alpine Linux container which utilize Linux PAM, or some other mechanism which uses the system shadow file as an authentication database, may accept a NULL password for the `root` user. ( CVE-2019-5021) Impact BIG-IP Controller for Cloud Foundry An attacker can exploit the vulnerability remotely to gain unauthorized access to the affected system. BIG-IP / Enterprise Manager / BIG-IQ Centralized Management / F5 iWorkflow / Traffix SDC / BIG-IP Controller for Kubernetes / BIG-IP Controller for Marathon / F5 IPAM Controller There is no impact; these F5 products are not affected by this vulnerability. Security Advisory Status F5 Product Development has assigned ID CONTCNTR-669 (BIG-IP Controller for Cloud Foundry) 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. +---------------------+------+----------+----------+----------+------+----------+ | | |Versions |Fixes | |CVSSv3|Vulnerable| |Product |Branch|known to |introduced|Severity |score^|component | | | |be |in | |1 |or feature| | | |vulnerable| | | | | +---------------------+------+----------+----------+----------+------+----------+ |BIG-IP Controller for| | | | | |Alpine | |Cloud Foundry |1.x |1.2.1 |None |Critical |9.8 |Linux | |(cf-bigip-ctlr) | | | | | |container | +---------------------+------+----------+----------+----------+------+----------+ |F5 IPAM Controller |0.x |None |Not |Not |None |None | |(f5-ipam-ctlr) | | |applicable|vulnerable| | | +---------------------+------+----------+----------+----------+------+----------+ |BIG-IP Controller for| | |Not |Not | | | |Kubernetes |1.x |None |applicable|vulnerable|None |None | |(k8s-bigip-ctlr) | | | | | | | +---------------------+------+----------+----------+----------+------+----------+ |BIG-IP Controller for| | |Not |Not | | | |Marathon |1.x |None |applicable|vulnerable|None |None | |(marathon-bigip-ctlr)| | | | | | | +---------------------+------+----------+----------+----------+------+----------+ | |15.x |None |Not | | | | | | | |applicable| | | | | +------+----------+----------+ | | | | |14.x |None |Not | | | | |BIG-IP (LTM, AAM, | | |applicable| | | | |AFM, Analytics, APM, +------+----------+----------+ | | | |ASM, DNS, Edge |13.x |None |Not |Not |None |None | |Gateway, FPS, GTM, | | |applicable|vulnerable| | | |Link Controller, PEM,+------+----------+----------+ | | | |WebAccelerator) |12.x |None |Not | | | | | | | |applicable| | | | | +------+----------+----------+ | | | | |11.x |None |Not | | | | | | | |applicable| | | | +---------------------+------+----------+----------+----------+------+----------+ |Enterprise Manager |3.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +---------------------+------+----------+----------+----------+------+----------+ | |6.x |None |Not | | | | |BIG-IQ Centralized | | |applicable|Not | | | |Management +------+----------+----------+vulnerable|None |None | | |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| | | +---------------------+------+----------+----------+----------+------+----------+ ^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. 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 Supplemental Information o F5 Networks Docker Hub page Note: This link takes you to a resource outside of AskF5. The third party could remove the document without our knowledge. o F5 Cloud Docs 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 K9970: Subscribing to email notifications regarding F5 products o K9957: Creating a custom RSS feed to view new and updated documents - --------------------------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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