ET WEB_SPECIFIC_APPS Possible Apache Druid RCE Inbound (CVE-2021-25646)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.request_body;
content:"|22|type|22 3a 20 22|javascript|22|"; fast_pattern;
content:"|22|function|22 3a 20|";
pcre:"/^\x22[^\x22]*\x7b[^\x22]*\x7d[^\x22]*\x22[^\x22]*\x22{2}/Rm";
Raw source ET WEB_SPECIFIC_APPS Possible Apache Druid RCE Inbound (CVE-2021-25646) · 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 -> [$HTTP_SERVERS,$HOME_NET] any (
    msg:"ET WEB_SPECIFIC_APPS Possible Apache Druid RCE Inbound (CVE-2021-25646)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.request_body;
    content:"|22|type|22 3a 20 22|javascript|22|"; fast_pattern;
    content:"|22|function|22 3a 20|";
    pcre:"/^\x22[^\x22]*\x7b[^\x22]*\x7d[^\x22]*\x22[^\x22]*\x22{2}/Rm";
    reference:cve,2021-25646;
    classtype:attempted-admin;
    sid:2032340; rev:1;
    metadata:affected_product Apache_HTTP_server, attack_target Server, created_at 2021_03_29, cve CVE_2021_25646, deployment Perimeter, deployment Internal, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_03_29;
)

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