Bug ID 1352801: Unnessecary DNS lookups invoked by the bot defense process

Last Modified: May 29, 2024

Affected Product(s):
BIG-IP ASM(all modules)

Known Affected Versions:
17.1.0, 17.1.0.1, 17.1.0.2, 17.1.0.3, 17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3

Opened: Sep 16, 2023

Severity: 3-Major

Symptoms

DNS lookup can be noted from the bot defense without any relevant feature turned on.

Impact

Performance impact, unnecessary DNS lookups.

Conditions

- Specific configuration and request combination - Parameter data type is set to auto-detect

Workaround

Change the default wildcard parameter (or other relevant parameters) from auto-detect to other options (usually alpha-numeric).

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips