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saidshow_251381's avatar
saidshow_251381
Icon for Cirrostratus rankCirrostratus
Jul 26, 2017

Geoblock exception based on user agent

Hi,

 

We have Geo-blocking enabled for one of our apps and want to allow access from a third party tool that has a very specific user agent. Is it possible to allow requests from a geo blocked location when the user agent matches a particular string?

 

Thank you.

 

allow
ASM Advanced WAF
geo
geo blocking
iRules
security
string
user agent
  • samstep's avatar
    samstep
    Icon for Cirrocumulus rankCirrocumulus
    Jul 30, 2017

    You can do it with an iRule which checks the User-Agent Header to be the one you want to white-list and then unblocks that request using ASM::unblock

    Here is a sample iRule (replace 'My Magic User Agent' with User-Agent you need): 

    when ASM_REQUEST_DONE {
  foreach {viol} [ASM::violation names] {
    if { $viol eq "VIOLATION_ILLEGAL_GEOLOCATION" } {
      if { [HTTP::header "USER-AGENT"] contains "My Magic User Agent" } {
         ASM::unblock
    }     
    }
  }

}

    Hope this helps,

    Sam

    P.S. Remember to enable 'Trigger ASM iRule Events' in your policy properties!