ET WEB_SERVER CRLF Injection - Newline Characters in URL

Query · suricata

flow:established,to_server;
http.uri;
content:"|0D 0A|"; fast_pattern;
pcre:"/[\n\r](?:content-(?:type|length)|set-cookie|location)\x3a/i";
Raw source ET WEB_SERVER CRLF Injection - Newline Characters in URL · 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 CRLF Injection - Newline Characters in URL";
    flow:established,to_server;
    http.uri;
    content:"|0D 0A|"; fast_pattern;
    pcre:"/[\n\r](?:content-(?:type|length)|set-cookie|location)\x3a/i";
    reference:url,www.owasp.org/index.php/CRLF_Injection;
    classtype:web-application-attack;
    sid:2017143; rev:5;
    metadata:created_at 2013_07_13, signature_severity Major, updated_at 2020_09_18;
)

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