ET EXPLOIT Prestashop Supercheckout Module Arbitrary File Upload

alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (
    msg:"ET EXPLOIT Prestashop Supercheckout Module Arbitrary File Upload";
    flow:established,to_server;
    http.method;
    content:"POST"; nocase;
    http.uri;
    content:"/index.php"; startswith; nocase;
    content:"module=supercheckout"; nocase;
    content:"controller=supercheckout"; nocase;
    content:"method=SaveFilesCustomField"; nocase; fast_pattern;
    http.request_body;
    content:"custom_fields|5b|"; nocase;
    classtype:attempted-admin;
    sid:2033827; rev:1;
    metadata:attack_target Server, created_at 2021_08_27, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Exploit, updated_at 2021_08_27, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
)