ET WEB_SERVER Joomla Upload File Filter Bypass

Query · suricata

flow:established,to_server;
http.uri;
content:"option=com_media"; nocase; fast_pattern;
http.request_body;
content:"Filedata[]"; nocase;
pcre:"/filename[\r\n\s]*?=[\r\n\s]*?[\x22\x27]?[^\r\n\x22\x27\x3b]+?\.[\r\n\x3b\x22\x27]/i";
Raw source ET WEB_SERVER Joomla Upload File Filter Bypass · 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_SERVER Joomla Upload File Filter Bypass";
    flow:established,to_server;
    http.uri;
    content:"option=com_media"; nocase; fast_pattern;
    http.request_body;
    content:"Filedata[]"; nocase;
    pcre:"/filename[\r\n\s]*?=[\r\n\s]*?[\x22\x27]?[^\r\n\x22\x27\x3b]+?\.[\r\n\x3b\x22\x27]/i";
    classtype:attempted-user;
    sid:2017327; rev:4;
    metadata:created_at 2013_08_14, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_19;
)

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