Glitching Ruby Script

9d2f78236e45a335301ba1195026105d?s=47 Urabe Shyouhei
September 19, 2017
Technology
2
380

Glitching Ruby Script

A #rubykaigi 2017 Lightning Talk

9d2f78236e45a335301ba1195026105d?s=128

Urabe Shyouhei

September 19, 2017
Tweet

More Decks by Urabe Shyouhei

See All by Urabe Shyouhei
9d2f78236e45a335301ba1195026105d?s=48 shyouhei
0
290
9d2f78236e45a335301ba1195026105d?s=48 shyouhei
2
4.9k
9d2f78236e45a335301ba1195026105d?s=48 shyouhei
0
880
9d2f78236e45a335301ba1195026105d?s=48 shyouhei
11
5.3k
9d2f78236e45a335301ba1195026105d?s=48 shyouhei
7
1.5k
9d2f78236e45a335301ba1195026105d?s=48 shyouhei
10
2.4k
9d2f78236e45a335301ba1195026105d?s=48 shyouhei
4
870
9d2f78236e45a335301ba1195026105d?s=48 shyouhei
73
24k

Other Decks in Technology

See All in Technology
9e7a653ed313b3da4b263a772bfc5026?s=48 clustervr
0
140
0d29d155ce5c5a93ed46363626da3ea7?s=48 ocise
1
1.8k
9b600b6d2f592d0944507e989770b9b3?s=48 issei126
1
180
7e6a435700dda6cdb22105d601f20892?s=48 picardparis
4
2k
6f8838b2708a87ccf1015030f16880ef?s=48 godel
0
180
0dbafc17e04503dfef253274853b2c8a?s=48 terapyon
0
160
95aaab3d693889550fd2e7ae02f2f789?s=48 takaking22
13
5.1k
Cb88f765dd38cd942c39aacb5abbea06?s=48 ufoo68
0
250
0aa238a274c2397214b20d6eed58939b?s=48 moomooya
0
340
8434e5fcdb11033234455d4b2bfb6bb3?s=48 voyage_tech
0
610
553784f5490e80cde79ef80ee70b5ed2?s=48 takamii228
1
110
Aae0ea855eda20ad6481fe3777471e95?s=48 eyamane
0
120

Featured

See All Featured
1f74b13f1e5c6c69cb5d7fbaabb1e2cb?s=48 sferik
609
54k
C86443373fbfe92996aa882d0d7a59f8?s=48 imathis
479
150k
1519587b1a0febb658c36c94f6272b0d?s=48 roundedbygravity
84
7.7k
A60068bce2e73de3a37ca9d2dbe36092?s=48 bryan
100
11k
44b54d2ffcb7857004071cc6795dde11?s=48 cassininazir
345
20k
3ab1249be442027903e1180025340b3f?s=48 reverentgeek
165
6.8k
7559f6cff1f5efc2d210965febd4d71c?s=48 bermonpainter
339
26k
5ce91fa49a613cbc3e20d5f96856473f?s=48 edds
55
9.2k
1177e050db6bafe62885362edf6e3537?s=48 lauravandoore
435
28k
B47b288784fda77a94aeb234ca743c24?s=48 keavy
105
14k
5b6a2bd86ef643786a381a212e0ef2f1?s=48 geoffreycrofte
11
500
C0b42577cfc2b321be3474618107e933?s=48 samanthasiow
54
6k

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!