ET WEB_SPECIFIC_APPS Modx Revolution < 2.6.4 phpthumb.php RCE Attempt

Query · suricata

flow:established,to_server;
urilen:31;
http.method;
content:"POST";
http.uri;
content:"/connectors/system/phpthumb.php"; fast_pattern;
http.request_body;
content:"<?php"; nocase;
content:"($_SERVER"; nocase; distance:0;
Raw source ET WEB_SPECIFIC_APPS Modx Revolution < 2.6.4 phpthumb.php RCE Attempt · 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 -> $HTTP_SERVERS any (
    msg:"ET WEB_SPECIFIC_APPS Modx Revolution < 2.6.4 phpthumb.php RCE Attempt";
    flow:established,to_server;
    urilen:31;
    http.method;
    content:"POST";
    http.uri;
    content:"/connectors/system/phpthumb.php"; fast_pattern;
    http.request_body;
    content:"<?php"; nocase;
    content:"($_SERVER"; nocase; distance:0;
    reference:url,exploit-db.com/exploits/45055/;
    classtype:web-application-attack;
    sid:2025917; rev:3;
    metadata:affected_product Web_Server_Applications, attack_target Web_Server, created_at 2018_07_27, deployment Perimeter, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_25;
)

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