alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"GPL WEB_CLIENT local resource redirection attempt"; flow:to_client,established; content:"Location|3A|"; nocase; pcre:"/^Location\x3a\s*URL\s*\x3a/smi"; reference:cve,2004-0549; reference:url,www.kb.cert.org/vuls/id/713878; classtype:attempted-user; sid:2102577; rev:7; metadata:affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2010_09_23, deployment Perimeter, confidence Medium, signature_severity Major, tag Web_Client_Attacks, updated_at 2019_07_26;)