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;)