ET WEB_SPECIFIC_APPS Netgear unlock3G.cgi key Parameter Command Injection Attempt

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS Netgear unlock3G.cgi key Parameter Command Injection Attempt";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri; bsize:13;
    content:"/unlock3G.cgi"; fast_pattern;
    http.request_body;
    content:"key|3d|";
    pcre:"/^[^\x26]*?(?:(?:\x3b|%3[Bb])|(?:\x0a|%0[Aa])|(?:\x60|%60)|(?:\x7c|%7[Cc])|(?:\x24|%24))+/R";
    reference:url,github.com/jinhao118/cve/blob/main/DGN2200M-V1.0.0.35_1.0.21NA_1.md;
    classtype:attempted-admin;
    sid:2068158; rev:1;
    metadata:affected_product Netgear_Router, attack_target Networking_Equipment, tls_state plaintext, created_at 2026_03_11, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_03_11, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)