ET WEB_SERVER Possible XXE SYSTEM ENTITY in POST BODY.

Query · suricata

flow:established,to_server;
content:"ENTITY"; nocase;
pcre:"/^\s+?[^\s\>]+?\s+?SYSTEM\s/Ri";
http.request_body;
content:"DOCTYPE"; nocase; fast_pattern;
content:"SYSTEM"; nocase;
Raw source ET WEB_SERVER Possible XXE SYSTEM ENTITY in POST BODY. · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (
    msg:"ET WEB_SERVER Possible XXE SYSTEM ENTITY in POST BODY.";
    flow:established,to_server;
    content:"ENTITY"; nocase;
    pcre:"/^\s+?[^\s\>]+?\s+?SYSTEM\s/Ri";
    http.request_body;
    content:"DOCTYPE"; nocase; fast_pattern;
    content:"SYSTEM"; nocase;
    classtype:trojan-activity;
    sid:2018056; rev:4;
    metadata:created_at 2014_02_03, confidence Medium, signature_severity Major, updated_at 2020_09_22;
)

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