Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

EduardoSousa's avatar
EduardoSousa
Icon for Altocumulus rankAltocumulus
Aug 25, 2022

HTTP request to allow specific header

Hello guys. I'm new to irules, I was looking for some irule that only allows a specific header to access the application, if you don't have this header allowed it will drop this connection attempt. ...
security
EduardoSousa's avatar
EduardoSousa
Icon for Altocumulus rankAltocumulus
Sep 01, 2022

Hello Pete.

Is it possible to change the Irule to read the value and the header? For example, name = X-Custom-header and value = "ABCDEF123456"

PeteWhite's avatar
PeteWhite
Icon for Employee rankEmployee
Sep 01, 2022
when HTTP_REQUEST { 
    if { (! [HTTP::header exists "Header_name"]) || ([HTTP::header value "X-Custom-header" != "ABCDEF123456) } { 
        drop
    }
}