Bug ID 638629: Bot can be classified as human

Last Modified: Nov 07, 2022

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

Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 13.0.0

Fixed In:
13.1.0, 13.0.0 HF1, 12.1.3

Opened: Jan 11, 2017

Severity: 2-Critical


A bot is classified as human in a rare case.


Bot traffic gets classified as human by ASM.


Web scraping is turned on. The CSHUI is tried on the user.



Fix Information

Fixed the CSHUI algorithm to have better bot detection.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips