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Host header attack

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If you don't need the host header in your application just remove  this header for any resquest on the Netscaler. You will need to do a rewrite policy.

Something like this:


add rewrite action rw_act_removeHost delete_http_header Host
add rewrite policy rw_pol_removeHost "HTTP.REQ.HEADER(\"Host\").EXISTS" rw_act_removeHost


If you need this host header than you need to do a responder policy and check that this header is correct. A good ideea would be to  have a whitelist of hosts that you actually have behind the Netscaler and permit only requests that have the host header in the whitelist.




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