ET WEB_SPECIFIC_APPS CrushFTP WebInterface Remote Directory Traversal via Network Path (CVE-2025-32103)

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS CrushFTP WebInterface Remote Directory Traversal via Network Path (CVE-2025-32103)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/WebInterface/function/"; fast_pattern;
    http.request_body;
    content:"path|3d|";
    pcre:"/^[^&]*?\x5c{2}/R";
    reference:url,seclists.org/fulldisclosure/2025/Apr/17;
    reference:cve,2025-32103;
    classtype:web-application-attack;
    sid:2061844; rev:1;
    metadata:affected_product CrushFTP, attack_target Server, tls_state TLSDecrypt, created_at 2025_04_24, cve CVE_2025_32103, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, updated_at 2025_04_24, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)