ET WEB_SPECIFIC_APPS ShowDoc File Upload Vulnerability

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET WEB_SPECIFIC_APPS ShowDoc File Upload Vulnerability";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    urilen:33;
    content:"/index.php?s=/home/page/uploadImg"; fast_pattern;
    http.content_type;
    content:"multipart/form-data|3b 20|"; startswith;
    reference:url,github.com/wy876/POC/blob/main/showDoc-uploadImg%E4%BB%BB%E6%84%8F%E6%96%87%E4%BB%B6%E4%B8%8A%E4%BC%A0%E6%BC%8F%E6%B4%9E.md;
    reference:url,github.com/star7th/showdoc;
    classtype:trojan-activity;
    sid:2053877; rev:1;
    metadata:affected_product ShowDoc, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_06_25, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_06_25;
)