ET WEB_SPECIFIC_APPS TP-Link PPPoEv6CfgRpm.htm username Parameter Buffer Overflow Attempt

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/userRpm/PPPoEv6CfgRpm.htm"; fast_pattern;
http.request_body;
content:"username|3d|";
pcre:"/^[^&]{102,}(?:&|$)/R";
target:dest_ip;
Raw source ET WEB_SPECIFIC_APPS TP-Link PPPoEv6CfgRpm.htm username Parameter Buffer Overflow Attempt · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS TP-Link PPPoEv6CfgRpm.htm username Parameter Buffer Overflow Attempt";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/userRpm/PPPoEv6CfgRpm.htm"; fast_pattern;
    http.request_body;
    content:"username|3d|";
    pcre:"/^[^&]{102,}(?:&|$)/R";
    reference:url,lavender-bicycle-a5a.notion.site/TP-Link-TL-WR740N-PPPoEv6CfgRpm-24d53a41781f80d89073f7be78ecdae1;
    classtype:attempted-admin;
    sid:2071396; rev:2;
    metadata:affected_product TP_LINK, attack_target Networking_Equipment, tls_state plaintext, created_at 2026_08_05, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, updated_at 2026_08_05, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)

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