alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS Cisco Start_EPI Multiple Parameters Command Injection Attempt"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/apply.cgi"; http.request_body; content:"submit_button|3d|EPI"; fast_pattern; pcre:"/(?:wl\x5f(?:ssid|ant|rate)|ttcp\x5f(?:num|ip|size))\x3d[^\x26]*?(?:(?:\x3b|%3[Bb])|(?:\x0a|%0[Aa])|(?:\x60|%60)|(?:\x7c|%7[Cc])|(?:\x24|%24))+/P"; reference:url,github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/Cisco%20RV110W%20Start_EPI%20command%20injection.md; classtype:attempted-admin; sid:2071807; rev:1; metadata:affected_product Cisco_RV_Series, attack_target Networking_Equipment, tls_state plaintext, created_at 2026_08_26, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, updated_at 2026_08_26, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)