Hands-On ModSecurity and Logging Philipp Krenn @xeraa
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Let’s talk about security… @xeraa
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@xeraa
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A1:2017-Injection https://www.owasp.org/index.php/ Top_10-2017_Top_10 @xeraa
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@xeraa
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A10:2017-Insufficient Logging & Monitoring https://www.owasp.org/index.php/ Top_10-2017_Top_10 @xeraa
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@xeraa
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Developer @xeraa
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Disclaimer I build highly monitored Hello World apps @xeraa
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Hello World of SQL Injection: https://xeraa.wtf @xeraa
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https://xeraa.wtf/read.php?id=1 @xeraa
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@xeraa
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python sqlmap.py —url “https://xeraa.wtf/read.php?id=1” -purge @xeraa
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Injection ;INSERT INTO employees (id,name,city,salary) VALUES (4,’new’,’employee’,10000) @xeraa
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No Escaping Either ;INSERT INTO employees (id,name,city,salary) VALUES (5,’<script>alert(“hello”)</script>’,’evil’,0) @xeraa
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@xeraa
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@xeraa
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What’s going on in our app? @xeraa
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DELETE or DROP? @xeraa
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@xeraa
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ModSecurity is an open source, cross-platform web application firewall (WAF) module. Known as the “Swiss Army Knife” of WAFs, it enables web application defenders to gain visibility into HTTP(S) traffic and provides a power rules language and API to implement advanced protections. @xeraa
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OWASP ModSecurity Core Rule Set (CRS) Version 3 • HTTP Protocol Protection • Real-time Blacklist Lookups • HTTP Denial of Service Protections • Generic Web Attack Protection • Error Detection and Hiding @xeraa
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Commercial Rules from Trustwave SpiderLabs • Virtual Patching • IP Reputation • Web-based Malware Detection • Webshell / Backdoor Detection • Botnet Attack Detection • HTTP Denial of Service (DoS) Attack Detection @xeraa
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Run sqlmap again python sqlmap.py —url “https://xeraa.wtf/read.php:8080? id=1” —purge @xeraa
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Custom Rule SecRule REQUEST_FILENAME “form.php” “id:’400001’,chain,deny,log,msg:’Spam detected’” SecRule REQUEST_METHOD “POST” chain SecRule REQUEST_BODY “@rx (?i:(pills|insurance|rolex))” @xeraa
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@xeraa
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Conclusion @xeraa
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Examples https://github.com/xeraa/mod_security-log @xeraa
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Code Logging ModSecurity @xeraa
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Questions? Philipp Krenn @xeraa @xeraa
