ET WEB_SPECIFIC_APPS Winstar WN572HP3 upload.cgi HTTP Cookie buffer overflow attempt

Query · suricata

flow:established,to_server;
http.uri; bsize:19;
content:"/cgi-bin/upload.cgi"; fast_pattern;
http.cookie;
isdataat:200;
target:dest_ip;
Raw source ET WEB_SPECIFIC_APPS Winstar WN572HP3 upload.cgi HTTP Cookie buffer overflow attempt · Suricata
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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 Winstar WN572HP3 upload.cgi HTTP Cookie buffer overflow attempt";
    flow:established,to_server;
    http.uri; bsize:19;
    content:"/cgi-bin/upload.cgi"; fast_pattern;
    http.cookie;
    isdataat:200;
    reference:url,lafdrew.github.io/2025/03/17/Buffer%20Overflow%20in%20upload.cgi%20of%20WINSTAR_WN572HP3%20Device/;
    classtype:web-application-attack;
    sid:2062375; rev:1;
    metadata:affected_product Winstar, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_05_15, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, updated_at 2025_05_15, 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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