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

Forum Discussion

Arthur_Chapin_1's avatar
Arthur_Chapin_1
Icon for Nimbostratus rankNimbostratus
Oct 13, 2005

iRule to rewrite cookie domain

Can an irule be used to rewrite a cookies domain by intercepting the HTTP response, I am super new to iRules but I assume it would look something like this, im just not sure how the syntax should be ...
application delivery
dev
devops
irules
Brian_Gupta_115's avatar
Brian_Gupta_115
Icon for Nimbostratus rankNimbostratus
Oct 13, 2005
Try:


when HTTP_RESPONSE {
  set cookieDomain [HTTP::cookie domain "cookiename"]
  if { $cookieDomain contains "domainA" } {
    HTTP::cookie domain "cookiename" "domainB"
}
}

If you don't know the "cookiename" try "HTTP::cookie names".

Not sure if this will work... got the info from here Click here

-Brian