ET WEB_SERVER Coldfusion cfcexplorer Directory Traversal

alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (
    msg:"ET WEB_SERVER Coldfusion cfcexplorer Directory Traversal";
    flow:established,to_server;
    content:"path="; nocase;
    pcre:"/^[^&]*?(?:%(?:25)?2e(?:%(?:(?:25)?2e(?:%(?:25)?5c|\/|\\)|2e(?:25)?%(?:25)?2f)|\.(?:%(?:25)?(?:2f|5c)|\/|\\))|\.(?:%(?:25)?2e(?:%(?:25)?(?:2f|5c)|\/|\\)|\.(?:%(?:25)?(?:2f|5c)|\/|\\)))/Ri";
    http.uri;
    content:"/cfcexplorer.cfc"; nocase; fast_pattern;
    reference:url,blog.spiderlabs.com/2013/12/the-curious-case-of-the-malicious-iis-module-prologue-method-of-entry-analysis.html;
    classtype:attempted-user;
    sid:2017875; rev:5;
    metadata:created_at 2013_12_17, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_11_26, mitre_tactic_id TA0007, mitre_tactic_name Discovery, mitre_technique_id T1083, mitre_technique_name File_And_Directory_Discovery;
    target:dest_ip;
)