ET WEB_SPECIFIC_APPS Totolink A3002R formDnsv6 routername Parameter Buffer Overflow Attempt

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS Totolink A3002R formDnsv6 routername Parameter Buffer Overflow Attempt";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri; bsize:17;
    content:"/boafrm/formDnsv6"; fast_pattern;
    http.request_body;
    content:"submit|3d|Save";
    content:"enable_dnsv6|3d|1";
    content:"routername|3d|";
    pcre:"/^[^\x26$]{100,}(?:\x26|$)/R";
    reference:url,github.com/Jiangxiazhe/IOT_hack/blob/main/TOTOLINK/A3002R/3/overflow.md;
    classtype:web-application-attack;
    sid:2062314; rev:1;
    metadata:affected_product TOTOLINK, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_05_13, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, updated_at 2025_05_13, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)