ET WEB_SPECIFIC_APPS Zyxel NAS CGI Remote Code Execution via Configuration Upload (CVE-2024-29974)

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS Zyxel NAS CGI Remote Code Execution via Configuration Upload (CVE-2024-29974)";
    flow:established, to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/desktop|2c|/cgi-bin/file_upload-cgi/"; fast_pattern;
    http.content_type;
    content:"multipart/form-data|3b|";
    http.request_body;
    content:"filename|3d|";
    content:"|2e|rom|22|"; distance:0;
    reference:url,outpost24.com/blog/zyxel-nas-critical-vulnerabilities/;
    reference:cve,2024-29974;
    classtype:web-application-activity;
    sid:2055909; rev:1;
    metadata:affected_product Zyxel, attack_target Server, tls_state plaintext, created_at 2024_09_18, cve CVE_2024_29974, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Exploit, updated_at 2024_09_18, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)