ET WEB_SPECIFIC_APPS Wavlink login.cgi pagelogin Parameter Buffer Overflow Attempt (CVE-2025-61128)

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS Wavlink login.cgi pagelogin Parameter Buffer Overflow Attempt (CVE-2025-61128)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri; bsize:18;
    content:"/cgi-bin/login.cgi";
    http.header;
    content:"Referer|3a 20|http|3a 2f 2f|";
    pcre:"/^[^&]{100,}(?:&|$)/R";
    http.request_body;
    content:"page|3d|login|3d|"; fast_pattern;
    reference:url,gist.github.com/shinobu-alpha/6dd5ad7f83c16360f6564db0bc121e99;
    reference:cve,2025-61128;
    classtype:web-application-attack;
    sid:2065635; rev:1;
    metadata:affected_product Tenda, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_11_03, cve CVE_2025_61128, deployment Perimeter, deployment Internal, performance_impact Moderate, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_11_03, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)