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

Forum Discussion

FMA's avatar
FMA
Icon for Nimbostratus rankNimbostratus
Mar 26, 2018

Replace Host part in HTTP::Location

Hello, guys. I'm trying to find a way to perform manipulation with HTTP::header Location. 1. Web-browser requests https://abc.com 2. Web-server replies with HTTP/301 Location: https://xyz.com/{$UR...
application delivery
big-ip
irules
stan_piron's avatar
stan_piron
Icon for Cumulonimbus rankCumulonimbus
Mar 26, 2018

Hi,

I recommend to replace absolute URI to relative URI. This rewrite rule may have been useless if the server had responded with relative URI.

when HTTP_RESPONSE {
    if { [HTTP::header exists Location] && ([URI::host [HTTP::header value Location]] equals "xyz.com")} {
        HTTP::header replace Location [string map {https://xyz.com/ /} [HTTP::header value Location]]
    }
}