ET WEB_SPECIFIC_APPS Jenkins Pre-auth User Information Leakage

Query · suricata

flow:established,to_server;
http.method;
content:"GET"; depth:3; endswith;
http.uri;
content:"/securityRealm/user/"; depth:20; fast_pattern;
content:"/search/index?q="; distance:0;
isdataat:1,relative;
http.content_type;
content:"application/x-www-form-urlencoded";
http.header_names;
content:!"Referer";
Raw source ET WEB_SPECIFIC_APPS Jenkins Pre-auth User Information Leakage · 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 Jenkins Pre-auth User Information Leakage";
    flow:established,to_server;
    http.method;
    content:"GET"; depth:3; endswith;
    http.uri;
    content:"/securityRealm/user/"; depth:20; fast_pattern;
    content:"/search/index?q="; distance:0;
    isdataat:1,relative;
    http.content_type;
    content:"application/x-www-form-urlencoded";
    http.header_names;
    content:!"Referer";
    reference:url,blog.orange.tw/2019/01/hacking-jenkins-part-1-play-with-dynamic-routing.html;
    reference:url,github.com/rapid7/metasploit-framework/pull/11466;
    classtype:web-application-attack;
    sid:2027348; rev:4;
    metadata:attack_target Server, created_at 2019_05_10, deployment Perimeter, performance_impact Low, signature_severity Minor, updated_at 2020_09_17;
)

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