CTF大会開催はいいぞ。- 魔女のお茶会 2021冬 / Guide for holding CTF events

Transcript

1. CTF 2021/ hi120ki

2. @hi120ki CTF Wani Hackase Web Reversing 2 WaniCTF ( )

   SECCON Beginners CTF 2021 ( ) WaniCTF 2020 WaniCTF 21-spring WaniCTF 2021

3. WaniCTF 3 CTF 300

4. CTF CTF ! Q&A 4

5. CTF 5 Jeopardy Attack & Defense King of the Hill

   頻

6. CTF 6 & etc...

7. CTF 7 & + ⾒ Discord Twitter

8. 8 + OK Docker Docker Compose OSS

9. 9 CTF

10. 1 • • • • • Writeup • • 10

11. 2 • • & • 頻 • • • +

    & • 0 11

12. 12 Styled memo (WaniCTF 2021) Django Web PostgreSQL Redis +

13. 13 CTF

14. 14 CTF

15. - 15 ( RCE )

16. 16 - WaniCTF 2 ( ) ( )

17. - 17 OSS (1) CTFd https://github.com/CTFd/CTFd

18. - 18 OSS (2) rCTF https://github.com/redpwn/rctf CTFd

19. 19 - GitHub ⾒ Slack prometheus exporter

20. 20 - 1 : ( CTFd )

21. - 21 WaniCTFd k6

22. 22

23. 23

24. 24

25. 25 WaniCTF CPU

26. 26 WaniCTF CPU

27. 27 WaniCTF CPU

28. 28 & https://github.com/wani-hackase/wanictf2021-writeup/blob/main/web/traversal/checker/web_traversal.py

29. 29 ( )

30. 30

31. 31 Q&A

32. Q&A ? 32 (2 ) : EC2 t2.small, RDS t2.micro

    (5 ) : EC2 t2.medium x3 (10 ) : EC2 t2.medium & t2.small + 4

33. Q&A ? 33 2 : ( ) 2~3 : HP

    Twittrer&Discord 1 : ( 2 ) ~ : :

34. Q&A ( ) 34 HTTPS SSL ( https://crt.sh/) Discord CTF

    SSL Caddy CTF (e.g. Discord )

35. Q&A 35

36. Q&A 36 CTF + SRE ( )

37. CTF ~ ~ 頻

38. 38 WaniCTF 2021 https://hi120ki.github.io/blog/posts/20211109/ WaniCTF https://wanictf.org/