Hands-On ModSecurity and Logging

This talk combines two of the OWASP top ten security risks:
* Injections (A1:2017): We are using a simple application that is exploitable by an injection and will then secure it with ModSecurity.
* Insufficient Logging & Monitoring (A10:2017): We are logging and monitoring the application both with and without ModSecurity with the open source Elastic Stack.

To make it more interactive the audience has to do the injections, which we are then live monitoring and mitigating with ModSecurity.

Transcript

1. Hands-On ModSecurity and Logging Philipp Krenn̴ ̴̴̴@xeraa
2. Let's talk about security... ̴̴@xeraa
3. ̴̴@xeraa
4. A1:2017-Injection https://www.owasp.org/index.php/ Top_10-2017_Top_10 ̴̴@xeraa
5. ̴̴@xeraa
6. A10:2017-Insufficient Logging & Monitoring https://www.owasp.org/index.php/ Top_10-2017_Top_10 ̴̴@xeraa
7. ̴̴@xeraa
8. Developer ̴̴@xeraa
9. Disclaimer I build highly monitored Hello World apps ̴̴@xeraa
10. Hello World of SQL Injection: https://xeraa.wtf ̴̴@xeraa
11. https://xeraa.wtf/read.php?id=1 ̴̴@xeraa
12. ̴̴@xeraa
13. python sqlmap.py --url "https://xeraa.wtf/read.php?id=1" -- purge ̴̴@xeraa
14. Injection ;INSERT INTO employees (id,name,city,salary) VALUES (4,'new','employee',10000) ̴̴@xeraa
15. No Escaping Either ;INSERT INTO employees (id,name,city,salary) VALUES (5,'<script>alert("hello")</script>','evil',0) ̴̴@xeraa
18. ̴̴@xeraa
20. ̴̴@xeraa
21. ̴̴@xeraa
22. ̴̴@xeraa
24. What's going on in our app? ̴̴@xeraa
26. DELETE or DROP ? ̴̴@xeraa
27. ̴̴@xeraa
28. 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
29. 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
30. 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
31. Run sqlmap again python sqlmap.py --url "https://xeraa.wtf/read.php:8080? id=1" --purge ̴̴@xeraa
32. 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
33. ̴̴@xeraa
34. Conclusion̴̴ ̴̴@xeraa
35. Examples https://github.com/xeraa/mod_security-log ̴̴@xeraa
36. Code Logging ModSecurity ̴̴@xeraa
37. Questions?̴̴ Philipp Krenn̴̴̴̴̴@xeraa ̴̴@xeraa