ET WEB_SPECIFIC_APPS Wangshen SecGate 3600 obj_area_export_save filename parameter Directory Traversal Attempt (2025-4185)

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS Wangshen SecGate 3600 obj_area_export_save filename parameter Directory Traversal Attempt (2025-4185)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"g=obj_area_export_save"; fast_pattern;
    content:"file_name|3d|";
    pcre:"/^[^\x26]*?(?:(?:\x2e|%2[Ee]){1,2}(?:\x2f|\x5c|%5[Cc]|%2[Ff]){1,}){2,}/R";
    http.header_names;
    content:!"|0d 0a|Cookie|0d 0a|";
    content:!"|0d 0a|Authorization|0d 0a|";
    reference:cve,2025-4185;
    reference:url,flowus.cn/share/6bd8ca39-bad2-4567-b0e1-9407991ad943?code=G8A6P3;
    classtype:attempted-admin;
    sid:2062098; rev:1;
    metadata:affected_product Wangshen, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_05_02, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, updated_at 2025_05_02, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)