Original Publication Date: Nov 9, 2016
Updated Date: Feb 21, 2023
This article has been archived and is no longer maintained by F5. WorldTech IT will continue to host this resource.
Topic
F5 releases attack signature updates for the BIG-IP ASM system approximately every six weeks. The attack signature updates include new attack signatures as well as enhancements to existing attack signatures.
Architectural changes in the BIG-IP ASM signature database now allow your system to receive a significantly higher number of supported attack signatures. Due to these changes, when you apply attack signature updates, older versions of the BIG-IP ASM system may not receive enhancements to existing attack signatures, and may not receive new attack signatures that are available to newer BIG-IP ASM versions.
Description
The following table shows the BIG-IP ASM versions that do not contain the required changes that allow you to install the latest signature database.
| BIG-IP ASM branch | BIG-IP ASM versions that no longer receive signature updates |
|---|---|
| 12.x | 12.0.0 |
| 11.6.x | 11.6.0 |
| 11.5.x | 11.5.4 – 11.5.4 HF1 |
| 11.4.x | 11.4.1 – 11.4.1 HF9 |
| 11.2.x | 11.2.1 |
If you have a version of the BIG-IP ASM system that does not receive signature updates, you must either upgrade to a newer version, or obtain an engineering hotfix for your version of the BIG-IP ASM system. To obtain an engineering hotfix, contact F5 Technical Support.