alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS FLIR dns dns Parameter Command Injection Attempt (CVE-2017-20215)"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:33; content:"/page/maintenance/lanSettings/dns"; fast_pattern; http.request_body; content:"dns"; pcre:"/^[^\x26]*?(?:(?:\x3b|%3[Bb])|(?:\x0a|%0[Aa])|(?:\x60|%60)|(?:\x7c|%7[Cc])|(?:\x24|%24))+/R"; reference:url,www.zeroscience.mk/codes/flir_rce.txt; reference:cve,2017-20215; classtype:attempted-admin; sid:2066627; rev:1; metadata:affected_product FLIR, attack_target Networking_Equipment, tls_state plaintext, created_at 2026_01_08, cve CVE_2017_20215, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, updated_at 2026_01_08, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)