ET DOS Possible Microsoft Windows HTTP2 Reset Flood Denial of Service Inbound (CVE-2019-9514)

Query · suricata

flow:established,to_server;
dsize:9;
content:"|00 00 00 01 04 00 00 00|"; startswith; fast_pattern;
threshold:type threshold, count 45, seconds 60, track by_src;
Raw source ET DOS Possible Microsoft Windows HTTP2 Reset Flood Denial of Service Inbound (CVE-2019-9514) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp-pkt any any -> [$HOME_NET,$HTTP_SERVERS] any (
    msg:"ET DOS Possible Microsoft Windows HTTP2 Reset Flood Denial of Service Inbound (CVE-2019-9514)";
    flow:established,to_server;
    dsize:9;
    content:"|00 00 00 01 04 00 00 00|"; startswith; fast_pattern;
    threshold:type threshold, count 45, seconds 60, track by_src;
    reference:cve,2019-9514;
    classtype:denial-of-service;
    sid:2034093; rev:1;
    metadata:attack_target Server, created_at 2021_10_04, cve CVE_2019_9514, deployment Perimeter, deployment Internal, confidence Medium, signature_severity Major, tag Exploit, updated_at 2021_10_04, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
)

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