Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Glitching Ruby Script

Avatar for Urabe Shyouhei Urabe Shyouhei
September 19, 2017
Technology
880
2

Glitching Ruby Script

A #rubykaigi 2017 Lightning Talk

Avatar for Urabe Shyouhei

Urabe Shyouhei

September 19, 2017

More Decks by Urabe Shyouhei

See All by Urabe Shyouhei
On sending methods
Avatar for Urabe Shyouhei shyouhei
0
730
The send-pop optimisation
Avatar for Urabe Shyouhei shyouhei
2
7.1k
Ruby 2.5 What's New
Avatar for Urabe Shyouhei shyouhei
0
1.3k
Being an Open Source Developer, at work
Avatar for Urabe Shyouhei shyouhei
11
6.9k
Optimizing Ruby
Avatar for Urabe Shyouhei shyouhei
7
2.7k
Ruby and its evaluation
Avatar for Urabe Shyouhei shyouhei
10
3.1k
Deeper look at RFC7159 the JSON
Avatar for Urabe Shyouhei shyouhei
4
1.8k
What's New in Ruby 2.0
Avatar for Urabe Shyouhei shyouhei
71
25k

Other Decks in Technology

See All in Technology
8bit CPU 2026
Avatar for KOBA789 koba789
7
2.9k
指示待ちから変化に応じるClaude Codeへ！~環境からAgentへの帰り道を作る~
Avatar for Gota gotalab555
6
970
サイボウズ 開発本部採用ピッチ / Cybozu Engineer Recruit
Avatar for Cybozu cybozuinsideout
PRO
12
86k
Cloudflare製品を活用した AIガバナンス実践入門 / AI governance with Cloudflare Service
Avatar for 株式会社DELTA delta_tech
1
100
Digitization部 紹介資料
Avatar for Sansan, Inc. sansan33
PRO
2
7.7k
全社に広がるMCPサーバーを、 どう安全に管理するか MCPass開発の舞台裏
Avatar for k.muguruma mtpooh
2
140
GopherCon @シアトル に行ってきました
Avatar for Takuto Nagami logica0419
0
320
Sansan Engineering Unit 紹介資料
Avatar for Sansan, Inc. sansan33
PRO
1
5k
最新技術に積極チャレンジ！EKS共通基盤のこれまでとこれから
Avatar for 高棹大樹 daitak
0
200
エージェント化するAI：現在地とその先に起きる変化 / AI as Agents: The Current State and the Changes Ahead
Avatar for Kenji Saito ks91
PRO
0
140
サーバー常駐型の 簡易障害調査AI エージェントを作ってみた話
Avatar for masayoshi masayoshi
0
230
Kiro Crew で始める マルチエージェント開発
Avatar for Kazuki Miura miu_crescent
PRO
0
200

Featured

See All Featured
"I'm Feeling Lucky" - Building Great Search Experiences for Today's Users (#IAC19)
Avatar for Dan Newman danielanewman
230
23k
Distributed Sagas: A Protocol for Coordinating Microservices
Avatar for Caitie McCaffrey caitiem20
333
23k
Test your architecture with Archunit
Avatar for Yoan thirion
2
2.4k
The Anti-SEO Checklist Checklist. Pubcon Cyber Week
Avatar for Ryan Jones ryanjones
0
220
Code Review Best Practice
Avatar for Trisha Gee trishagee
74
20k
Prompt Engineering for Job Search
Avatar for Mfonobong Umondia mfonobong
0
420
Automating Front-end Workflow
Avatar for Addy Osmani addyosmani
1369
210k
SEOcharity - Dark patterns in SEO and UX: How to avoid them and build a more ethical web
Avatar for Sara Fernández Carmona sarafernandez
0
250
Odyssey Design
Avatar for Ryan Kendrick rkendrick25
PRO
2
780
What does AI have to do with Human Rights?
Avatar for Per Axbom axbom
PRO
1
2.3k
RailsConf 2023
Avatar for Aaron Patterson tenderlove
30
1.5k
Dominate Local Search Results - an insider guide to GBP, reviews, and Local SEO
Avatar for Greg Gifford greggifford
PRO
0
310

Transcript

  1. Glitching Ruby Script using American Fuzzy Lop @shyouhei

  2. None

  3. In short, AFL is a tool to glitch something.

  4. Why not use it to glitch our ruby script.

  5. Steps:

  6. 1: patch ruby.

  7. None

  8. OK That was too difficult.

  9. Steps revised:

  10. 1: docker pull.

  11. That’s all ;)

  12. None
  13. None

  14. Outputs

  15. None

  16. *OQVU (MJUDIFE

  17. *OQVU (MJUDIFE

  18. *OQVU (MJUDIFE

  19. N o w , R u b y comes with

    many tests.

  20. What if we glitch those tests?

  21. None
  22. None
  23. None
  24. None
  25. None
  26. None
  27. None

  28. It’s fun that AFL automatically finds bugs.

  29. Let AFL work for you today!