ET WEB_CLIENT Possible vBulletin object injection vulnerability Attempt

Query · suricata

flow:established,to_server;
http.uri;
content:"/api/hook/decodeArguments"; nocase;
content:"arguments="; nocase;
content:"|7b|"; distance:0;
content:"|3a|"; distance:0;
content:"|3b|"; distance:0;
content:"free_result"; nocase; distance:0;
Raw source ET WEB_CLIENT Possible vBulletin object injection vulnerability Attempt · 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 -> $HOME_NET any (
    msg:"ET WEB_CLIENT Possible vBulletin object injection vulnerability Attempt";
    flow:established,to_server;
    http.uri;
    content:"/api/hook/decodeArguments"; nocase;
    content:"arguments="; nocase;
    content:"|7b|"; distance:0;
    content:"|3a|"; distance:0;
    content:"|3b|"; distance:0;
    content:"free_result"; nocase; distance:0;
    reference:url,blog.sucuri.net/2015/11/vbulletin-exploits-in-the-wild.html;
    classtype:attempted-admin;
    sid:2022039; rev:3;
    metadata:created_at 2015_11_05, confidence Medium, signature_severity Major, updated_at 2020_06_09;
)

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