ET WEB_SERVER Possible Microsoft Internet Information Services (IIS) .asp Filename Extension Parsing File Upload Security Bypass Attempt (asp)

Query · suricata

flow:established,to_server;
http.uri;
content:".asp|3B 2E|"; nocase;
Raw source ET WEB_SERVER Possible Microsoft Internet Information Services (IIS) .asp Filename Extension Parsing File Upload Security Bypass Attempt (asp) · 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 Possible Microsoft Internet Information Services (IIS) .asp Filename Extension Parsing File Upload Security Bypass Attempt (asp)";
    flow:established,to_server;
    http.uri;
    content:".asp|3B 2E|"; nocase;
    reference:url,www.securityfocus.com/bid/37460/info;
    reference:url,www.securityfocus.com/bid/37460/info;
    reference:url,soroush.secproject.com/downloadable/iis-semicolon-report.pdf;
    reference:cve,2009-4444;
    classtype:web-application-attack;
    sid:2010592; rev:9;
    metadata:created_at 2010_07_30, cve CVE_2009_4444, confidence Medium, signature_severity Major, updated_at 2020_08_20;
)

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