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

Glitching Ruby Script

Urabe Shyouhei
September 19, 2017
Technology
2
780

Glitching Ruby Script

A #rubykaigi 2017 Lightning Talk

Urabe Shyouhei

September 19, 2017
Tweet

More Decks by Urabe Shyouhei

See All by Urabe Shyouhei
On sending methods
shyouhei
0
620
The send-pop optimisation
shyouhei
2
6.6k
Ruby 2.5 What's New
shyouhei
0
1.2k
Being an Open Source Developer, at work
shyouhei
11
6.6k
Optimizing Ruby
shyouhei
7
2.4k
Ruby and its evaluation
shyouhei
10
2.9k
Deeper look at RFC7159 the JSON
shyouhei
4
1.6k
What's New in Ruby 2.0
shyouhei
71
25k

Other Decks in Technology

See All in Technology
Goの組織でバックエンドTypeScriptを採用してどうだったか / How was adopting backend TypeScript in a Golang company
kaminashi
3
1k
Automatically generating types by running tests
sinsoku
2
1.6k
AIと開発者の共創: エージェント時代におけるAIフレンドリーなDevOpsの実践
bicstone
1
290
All You Need Is Kusa 〜Slackデータで始めるデータドリブン〜
jonnojun
0
150
Ops-JAWS_Organizations小ネタ3選.pdf
chunkof
2
140
Would you THINK such a demonstration interesting ?
shumpei3
1
200
watsonx.data上のベクトル・データベース Milvusを見てみよう/20250418-milvus-dojo
mayumihirano
0
110
OSSコントリビュートをphp-srcメンテナの立場から語る / OSS Contribute
sakitakamachi
0
1.4k
Spice up your notifications/try!Swift25
noppefoxwolf
2
350
20250413_湘南kaggler会_音声認識で使うのってメルス・・・なんだっけ？
sugupoko
1
460
Spring Bootで実装とインフラをこれでもかと分離するための試み
shintanimoto
7
750
50人の組織でAIエージェントを使う文化を作るためには / How to Create a Culture of Using AI Agents in a 50-Person Organization
yuitosato
6
3.4k

Featured

See All Featured
Save Time (by Creating Custom Rails Generators)
garrettdimon
PRO
31
1.1k
Practical Orchestrator
shlominoach
186
10k
Why You Should Never Use an ORM
jnunemaker
PRO
55
9.3k
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
331
21k
Designing Experiences People Love
moore
141
24k
What’s in a name? Adding method to the madness
productmarketing
PRO
22
3.4k
Embracing the Ebb and Flow
colly
85
4.6k
Optimising Largest Contentful Paint
csswizardry
36
3.2k
Fireside Chat
paigeccino
37
3.4k
[RailsConf 2023 Opening Keynote] The Magic of Rails
eileencodes
29
9.4k
The World Runs on Bad Software
bkeepers
PRO
67
11k
The Art of Programming - Codeland 2020
erikaheidi
53
13k

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!