Bug ID 507753: URL categorization missed if HTTP1.0 header does not have HOST

Last Modified: Oct 06, 2020

Bug Tracker

Affected Product:  See more info
BIG-IP PEM(all modules)

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4

Fixed In:
11.6.0 HF5

Opened: Feb 18, 2015
Severity: 3-Major


If a URL does not contain input from HTTP host header in the URL request (which is a valid HTTP 1.0 request, but not valid on HTTP 1.1), the categorization does not happen.


URL is categorized as UNKNOWN under the condition.


When PEM URLCAT is enabled, and the URL input from HTTP host header is not available, which is possible for HTTP 1.0 request.



Fix Information

Now, when the HTTP host header is not present in the HTTP request, the PEM categorization engine still considers and processes it.

Behavior Change