ET WEB_SPECIFIC_APPS XML External Entity Information Disclosure

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.request_body;
content:"<?xml version=|22|1.0|22 20|encoding=";
content:"<!DOCTYPE";
content:"<!ENTITY";
content:"SYSTEM |22|file|3a|///etc/"; fast_pattern;
Raw source ET WEB_SPECIFIC_APPS XML External Entity Information Disclosure · 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 $EXTERNAL_NET any -> $HTTP_SERVERS any (
    msg:"ET WEB_SPECIFIC_APPS XML External Entity Information Disclosure";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.request_body;
    content:"<?xml version=|22|1.0|22 20|encoding=";
    content:"<!DOCTYPE";
    content:"<!ENTITY";
    content:"SYSTEM |22|file|3a|///etc/"; fast_pattern;
    reference:url,owasp.org/index.php/XML_External_Entity_(XXE)_Processing;
    classtype:attempted-recon;
    sid:2025877; rev:3;
    metadata:affected_product Linux, attack_target Web_Server, created_at 2018_07_20, deployment Datacenter, performance_impact Low, signature_severity Major, updated_at 2020_08_25, mitre_tactic_id TA0007, mitre_tactic_name Discovery, mitre_technique_id T1082, mitre_technique_name System_Information_Discovery;
)

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