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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.4310 BIG-IP / BIG-IQ / Enterprise Manager / F5 iWorkflow Configuration utility vulnerability CVE-2019-6663 15 November 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: F5 BIG-IP products Publisher: F5 Networks Operating System: Network Appliance Impact/Access: Provide Misleading Information -- Remote/Unauthenticated Resolution: Mitigation CVE Names: CVE-2019-6663 Original Bulletin: https://support.f5.com/csp/article/K76052144 - --------------------------BEGIN INCLUDED TEXT-------------------- K76052144:BIG-IP / BIG-IQ / Enterprise Manager / F5 iWorkflow Configuration utility vulnerability CVE-2019-6663 Security Advisory Original Publication Date: 15 Nov, 2019 Security Advisory Description The BIG-IP / BIG-IQ / Enterprise Manager / F5 iWorkflow Configuration utility is vulnerable to Anti DNS Pinning (DNS Rebinding) attack. (CVE-2019-6663) Impact BIG-IP / BIG-IQ / Enterprise Manager / F5 iWorkflow An Anti DNS Pinning (DNS Rebinding) attack allows an attacker to manipulate the correspondence between an IP address and a fully qualified domain name (FQDN) with the purpose of initializing active content within the trust relationship with the vulnerable site. The vulnerability is that the Configuration utility does not sufficiently verify the Host field in the HTTP request. The Configuration utility fails to return an error if the received request includes an arbitrary address in the Host field, and instead continues to process the request. An attacker initiating a DNS rebinding attack requires control of the DNS that is configured in a client that accesses the Configuration utility of the vulnerable system. Traffix SDC There is no impact; this F5 product is not affected by this vulnerability. Security Advisory Status F5 Product Development has assigned ID 407512 (BIG-IP, BIG-IQ, Enterprise Manager, and F5 iWorkflow) 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 or | | | |be |in | |1 |feature | | | |vulnerable| | | | | +----------------+------+----------+----------+----------+------+-------------+ | |15.x |15.0.0 - |None | | | | | | |15.0.1^2 | | | | | | +------+----------+----------+ | | | |BIG-IP (LTM, |14.x |14.0.0 - |None | | | | |AAM, AFM, | |14.1.2^2 | | | | | |Analytics, APM, +------+----------+----------+ | | | |ASM, DNS, Edge |13.x |13.0.0 - |None |Low |3.3 |Configuration| |Gateway, FPS, | |13.1.3^2 | | | |utility | |GTM, Link +------+----------+----------+ | | | |Controller, PEM,|12.x |12.1.0 - |None | | | | |WebAccelerator) | |12.1.5^2 | | | | | | +------+----------+----------+ | | | | |11.x |11.5.2 - |None | | | | | | |11.6.5^2 | | | | | +----------------+------+----------+----------+----------+------+-------------+ |Enterprise |3.x |3.1.1^2 |None |Low |3.3 |Configuration| |Manager | | | | | |utility | +----------------+------+----------+----------+----------+------+-------------+ | |7.x |7.0.0^2 |None | | | | | +------+----------+----------+ | |Configuration| |BIG-IQ |6.x |6.0.0 - |None | | |utility / | |Centralized | |6.1.0^2 | |Low |3.3 |User | |Management +------+----------+----------+ | |Interface | | |5.x |5.2.0 - |None | | | | | | |5.4.0^2 | | | | | +----------------+------+----------+----------+----------+------+-------------+ |F5 iWorkflow |2.x |2.3.0^2 |None |Low |3.3 |Configuration| | | | | | | |utility | +----------------+------+----------+----------+----------+------+-------------+ |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. ^2F5 will not develop a fix for vulnerable products that do not already have a fixed version listed in this article, and will not update this table with subsequent vulnerable releases in the associated branches. For more information, refer to K4602: Overview of the F5 security vulnerability response policy. 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 As the Configuration utility is accessible only over Transport Layer Security (TLS), the use of a valid, signed TLS server certificate for the Configuration utility will show a server certificate validation error to the browser. If the affected system does not use a valid server certificate, the user will have to accept the validation bypass in the browser. If the Configuration utility is accessed by way of an IP address instead of through the FQDN, then this attack is not relevant. Supplemental Information o K51812227: Understanding Security Advisory versioning o K41942608: Overview of Security Advisory articles 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 K15106: Managing BIG-IQ product hotfixes o K15113: BIG-IQ hotfix and point release matrix 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 K21232150: Considerations for upgrading BIG-IQ or F5 iWorkflow systems - --------------------------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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXc4E6WaOgq3Tt24GAQhVIhAAuzZbzoag49HS7q22hxanm1XLPdRbcxhs q6YaUV01tV7YfwFd4fS36GMJXF6A5xOg3E3gxPtRtgJ89Dy8yDJFM1A1uVERxtDl ev98pi3Do5RNY3JCTdsUHLMWpgs0m7dRQmz6T8iNJnLTmdt5RzTx7nqo7DxNYfOS dNA1WsG/UR3LJcSqgaLFURo+9/+A3q4X3OsZ4WdqHaHgBodCjV0tYhFdGcdFkLl7 cwIlEt3p0TztqoGJxUuHEAKtl4ygNoHadTFNRVUPh3a+JU1jfd/CoXC5aWRlXSwe MmHZWAWZI+MXTWAr5vmrPGPyDW+uW7X8QDEt4oYXkc0EL86U6L46SqtqOgRscAM1 wNFjzImxPPbtMJKfwgf3nI9bq6PJGkbI6eQP+csOYDU5HaR3qpSkU35S11S0UjJC rCqeOTNuYrGUePlcx9mz8u4pC0PhX5s2h4p5Kuk3DYgFNZj+qK0nfdb6cNYxOuva MnrGnUapzcJSeTmFl6kqbZgI6BNkYCNpYE5Ts+cWWRfWczl5czY/FOOKo9UrR/Mw Blv+B3Beg82Ti7u9vdwI3JttpwfUTRuWRz1cwnWADCefLZir67d7tVM3r5ZEtiLU gRdWjxGIa3UVP+Xq2PgMM6hTie9G6KIFAb5KKh7sGbayyOb0ZkA6/kxPpvIGfl/G AsNkDlONOgY= =du0l -----END PGP SIGNATURE-----