BIG-IP FTP profile vulnerability CVE-2019-6645

ID F5:K15759349
Type f5
Reporter f5
Modified 2019-10-04T15:26:00


F5 Product Development has assigned ID 756538 (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.

Product | Branch | Versions known to be vulnerable | Fixes introduced in | Severity | CVSSv3 score1 | Vulnerable component or feature
BIG-IP (LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, FPS, GTM, Link Controller, PEM, WebAccelerator)

| 15.x | None | 15.0.0 | High | 7.5 | FTP Profile
14.x | 14.1.0 |
14.0.0 | None
13.x | 13.1.0 - 13.1.1 | 13.1.3
12.x | 12.1.0 - 12.1.4 | 12.1.5
11.x | 11.5.2 - 11.6.5 |
Enterprise Manager | 3.x | None | Not applicable | Not vulnerable | None | None
BIG-IQ Centralized Management | 6.x | None | Not applicable | Not vulnerable | None | None
5.x | None | Not applicable
F5 iWorkflow | 2.x | None | Not applicable | Not vulnerable | None | None
Traffix SDC | 5.x | None | Not applicable | Not vulnerable | None | None

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.

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.


To mitigate this vulnerability, you can disable connection mirroring for FTP virtual servers, or use passive FTP. To do so, perform the following procedure:

Disabling connection mirroring

Impact of action: Disabling connection mirroring may disrupt in-flight FTP connections in the event of a failover.

  1. From the BIG-IP configuration utility, navigate to Local Traffic > Virtual Servers > Virtual Servers List.
  2. Select your FTP virtual server.
  3. Set the Configuration mode to Advanced.
  4. Clear the Connection mirroring option.
  5. To save the changes, click Update.

  6. K51812227: Understanding Security Advisory versioning

  7. K41942608: Overview of Security Advisory articles
  8. K4602: Overview of the F5 security vulnerability response policy
  9. K4918: Overview of the F5 critical issue hotfix policy
  10. K9502: BIG-IP hotfix and point release matrix
  11. K13123: Managing BIG-IP product hotfixes (11.x - 15.x)
  12. K167: Downloading software and firmware from F5
  13. K9970: Subscribing to email notifications regarding F5 products
  14. K9957: Creating a custom RSS feed to view new and updated documents