alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET EXPLOIT SEOWON INTECH SLC-130/SLR-120S RCE Inbound M1 (CVE-2020-17456)"; flow:to_server,established; http.method; content:"POST"; http.uri; content:"/system_log.cgi"; http.request_body; content:"&pingIpAddr="; fast_pattern; content:"%3B%"; distance:0; within:5; nocase; reference:cve,2020-17456; classtype:attempted-admin; sid:2035950; rev:2; metadata:attack_target Networking_Equipment, created_at 2022_04_14, cve CVE_2020_17456, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, updated_at 2022_04_14;)