Bug ID 1110281: Behavioral DoS does not ignore non-http traffic when disabled via iRule HTTP::disable and DOSL7::disable

Last Modified: May 29, 2024

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

Known Affected Versions:
14.1.5, 14.1.5.1, 14.1.5.2, 14.1.5.3, 14.1.5.4, 14.1.5.6, 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, 15.1.3, 15.1.3.1, 15.1.4, 15.1.4.1, 15.1.5, 15.1.5.1, 15.1.6, 15.1.6.1, 15.1.7, 15.1.8, 15.1.8.1, 15.1.8.2, 16.0.0, 16.0.0.1, 16.0.1, 16.0.1.1, 16.0.1.2, 16.1.0, 16.1.1, 16.1.2, 16.1.2.1, 16.1.2.2, 16.1.3, 16.1.3.1, 16.1.3.2, 16.1.3.3, 16.1.3.4, 16.1.3.5, 17.0.0, 17.0.0.1, 17.0.0.2, 17.1.0, 17.1.0.1, 17.1.0.2, 17.1.0.3

Fixed In:
17.1.1, 16.1.4, 15.1.9

Opened: May 27, 2022

Severity: 3-Major

Symptoms

Non-HTTP traffic is not forwarded to the backend server.

Impact

Broken webapps with non-HTTP traffic.

Conditions

- ASM provisioned - Behavioral DoS profile assigned to a virtual server - DOSL7::disable and HTTP::disable applied at when CLIENT_ACCEPTED {}

Workaround

Instead of using DOSL7::disable, redirect non-HTTP traffic to a non-HTTP aware virtual server using the iRule command virtual <virtual_server_name>.

Fix Information

Fixed the Behavioral DoS HTTP::disable command handler in the tmm code.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips