alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET EXPLOIT GoCD Authentication Bypass URI Path - add-on"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/add-on/"; nocase; fast_pattern; content:"pluginName="; content:"|2e 2e 2f|"; distance:0; within:5; reference:url,blog.sonarsource.com/gocd-pre-auth-pipeline-takeover; classtype:attempted-admin; sid:2034331; rev:1; metadata:created_at 2021_11_02, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_11_02, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)