alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT Possible ZyXEL P660HN-T v1 RCE (CVE-2017-18368)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/cgi-bin/ViewLog.asp"; depth:20; endswith; http.request_body; content:"remote_submit_Flag="; depth:19; content:"&remote_host="; distance:0; content:"&remoteSubmit=Save|0d 0a 0d 0a|"; endswith; fast_pattern; reference:url,seclists.org/fulldisclosure/2017/Jan/40; reference:cve,2017-18368; reference:url,github.com/pedrib/PoC/blob/master/advisories/zyxel_trueonline.txt; classtype:attempted-user; sid:2027092; rev:5; metadata:attack_target IoT, created_at 2019_03_18, cve CVE_2017_18368, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, tag CISA_KEV, updated_at 2021_02_16;)