ET WEB_SPECIFIC_APPS Zyxel NAS Unauthorized Command Injection in setCookie Parameter (CVE-2024-29973)

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS Zyxel NAS Unauthorized Command Injection in setCookie Parameter (CVE-2024-29973)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/cmd|2c|"; startswith;
    content:"/register_main/setCookie"; fast_pattern; endswith;
    http.request_body;
    content:"c0|3d|";
    reference:cve,2024-29973;
    reference:url,outpost24.com/blog/zyxel-nas-critical-vulnerabilities;
    classtype:web-application-attack;
    sid:2055908; rev:1;
    metadata:affected_product Zyxel, attack_target Server, tls_state plaintext, created_at 2024_09_18, cve CVE_2024_29973, 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;
)