alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (msg:"ET WEB_SPECIFIC_APPS Apache CouchDB Remote Code Execution 4"; flow:established,to_server; http.method; content:"DELETE"; http.uri; content:"/_config/query_servers/cmd"; fast_pattern; reference:cve,2017-12636; classtype:attempted-user; sid:2025743; rev:3; metadata:attack_target Web_Server, created_at 2018_06_25, cve CVE_2017_12636, deployment Datacenter, confidence High, signature_severity Major, updated_at 2020_08_25, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;)