Tech IT Easy x DevTalk : "Secure Your Coding with OWASP"
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related webminar : https://www.youtube.com/watch?v=p1WbHLsqTnI related code: https://github.com/bliblidotcom/sample-basic-secure-coding
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- 1. Secure Coding the bare minimum – understand the problem
- 2. Introduction • Andi R Djunaedi • Software Engineer at blibli.com since March 2014 • https://www.linkedin.com/in/andird • https://github.com/andirdju • https://github.com/bliblidotcom
- 3. Overview – understand the problem • Theory • Code • Web application -> we’ll talk about this • Operating System • Network • Other? • Importance • Practice, get your laptop, pc or whatever • How it works
- 4. Theory - Code • Web Applications • OWASP Top 10 List - new list every 3 years • https://www.owasp.org/index.php/Top_10_2013-Top_10 • https://www.owasp.org/index.php/Top_10_2010-Main • Top 3 - Samples • SQL Injection • Arbitrary SQL query execution • Session Fixation • Assume other’s Identity • Cross Site Scripting • Arbitrary client code (javascript, html) execution
- 5. Importance – Non Security • Performance • poor user experience • redesign, refactor, make it faster • Code coverage • buggy, spent more time on fixing bug • stop the leak • When • next iteration
- 6. Importance – Security • How to fix security incidents ??? • Personal/Financial data stolen • Data deleted • When • NOW !!!
- 7. Practice – Understand the problem • Run bad web app • OWASP Top 3 Sample • SQL Injection • Session Fixation • Cross Site Scripting • Exercise
- 8. Run – web app • Git, Jdk 8, Maven • https://github.com/bliblidotcom/sample-basic-secure-coding • In memory H2 database • Embedded server • mvn spring-boot:run • http://localhost:8080
- 9. Get your laptop – SQL Injection • Demo – Valid use case is only find one record by id • Read all records • Insert new records • Delete all records
- 10. Get your laptop – Session Fixation • Demo - session info only known to the user • Bad person(A) create new session • Persuade unsuspecting person(B) via phishing • Bad person(A) get session information of other person(B)
- 11. Get your laptop – Cross Site Scripting • Demo – valid use case only displays list of data • Can be done via the same SQL injection • Html • Add html form • Javascript • Add pop up • Add redirect
- 12. What’s Next • Crack the other API • it have similar problems • Fix the exploit • Don’t repeat yourself by creating custom solutions • SQL named parameter • Regenerate session id • Content escaping