Bug ID 965617: HSB mitigation is not applied on BDoS signature with stress-based mitigation mode

Last Modified: Sep 13, 2023

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

Known Affected Versions:
14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 15.0.0, 15.0.1, 15.0.1.1, 15.0.1.2, 15.0.1.3, 15.0.1.4, 15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 16.0.0, 16.0.0.1, 16.0.1

Fixed In:
16.1.0, 16.0.1.1, 15.1.3, 14.1.4

Opened: Nov 18, 2020

Severity: 3-Major

Symptoms

BDoS signature attacks are mitigated in software rather than via HSB

Impact

More resources loading during DDoS attack

Conditions

Dynamic or custom signature in stress-based mitigation mode on appliance with HSB support

Workaround

None

Fix Information

Correct free spot search with offloading to HSB

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips