ET WEB_SERVER CURL Command Specifying Output in HTTP Headers

Query · suricata

flow:established,to_server;
http.header;
content:"curl|20|"; fast_pattern;
pcre:"/(?!^User-Agent\x3a)\bcurl\s[^\r\n]*?-(?:[Oo]|-(?:remote-name|output))[^\r\n]+(?:\x3b|&&)/m";
Raw source ET WEB_SERVER CURL Command Specifying Output in HTTP Headers · 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 any any -> $HTTP_SERVERS any (
    msg:"ET WEB_SERVER CURL Command Specifying Output in HTTP Headers";
    flow:established,to_server;
    http.header;
    content:"curl|20|"; fast_pattern;
    pcre:"/(?!^User-Agent\x3a)\bcurl\s[^\r\n]*?-(?:[Oo]|-(?:remote-name|output))[^\r\n]+(?:\x3b|&&)/m";
    reference:url,blogs.akamai.com/2014/09/environment-bashing.html;
    classtype:attempted-admin;
    sid:2019308; rev:4;
    metadata:created_at 2014_09_29, signature_severity Minor, updated_at 2020_09_25;
)

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