alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET EXPLOIT Multiple DrayTek Products Pre-authentication Remote RCE Outbound (CVE-2020-8515) M1";
flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/cgi-bin/mainfunction.cgi?action=login&keyPath="; depth:47; fast_pattern;
content:"&loginUser="; distance:0;
content:"&loginPwd="; distance:0;
reference:cve,2020-8515;
reference:url,www.exploit-db.com/exploits/48268;
classtype:attempted-admin;
sid:2029804; rev:2;
metadata:affected_product Linux, attack_target Networking_Equipment, created_at 2020_04_03, cve CVE_2020_8515, deployment Perimeter, confidence High, signature_severity Major, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_04_03;
)