ET WEB_SPECIFIC_APPS Possible Drupal Object Unserialize Exploit Attempt

Query · suricata

flow:to_server,established;
http.method;
content:"POST";
http.uri;
content:"/user/login";
http.request_body;
content:"username";
content:"SelectQuery"; fast_pattern;
http.content_type;
content:"application/vnd.php.serialized"; bsize:30;
Raw source ET WEB_SPECIFIC_APPS Possible Drupal Object Unserialize Exploit 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 Possible Drupal Object Unserialize Exploit Attempt";
    flow:to_server,established;
    http.method;
    content:"POST";
    http.uri;
    content:"/user/login";
    http.request_body;
    content:"username";
    content:"SelectQuery"; fast_pattern;
    http.content_type;
    content:"application/vnd.php.serialized"; bsize:30;
    reference:url,www.ambionics.io/blog/drupal-services-module-rce;
    classtype:web-application-attack;
    sid:2024039; rev:4;
    metadata:affected_product Drupal_Server, attack_target Server, created_at 2017_03_08, deployment Datacenter, performance_impact Moderate, confidence Medium, signature_severity Minor, updated_at 2020_10_08;
)

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