ET WEB_SPECIFIC_APPS D-Link route Multiple Parameters Buffer Overflow Attempt (CVE-2025-25896)

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS D-Link route Multiple Parameters Buffer Overflow Attempt (CVE-2025-25896)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri; bsize:13;
    content:"/goform/route"; fast_pattern;
    http.request_body;
    pcre:"/(?:netmask|dest|gateway)\x3d[^&]{100,}(?:&|$)/";
    reference:url,github.com/yifan20020708/SGTaint-0-day/blob/main/DLink/DLink-DIR-816/3.md;
    reference:cve,2025-25896;
    classtype:web-application-attack;
    sid:2065800; rev:1;
    metadata:affected_product D_Link, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_11_17, cve CVE_2025_25896, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_11_17, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)