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

Are you content with our current attacks on Con...

Sponsored · Your Podcast. Everywhere. Effortlessly. Share. Educate. Inspire. Entertain. You do you. We'll handle the rest. →
Avatar for GMO Flatt Security GMO Flatt Security
August 05, 2024
2
440

Are you content with our current attacks on Content-Type?

A presentation for BSides Las Vegas 2024.

Avatar for GMO Flatt Security

GMO Flatt Security

August 05, 2024
Tweet

More Decks by GMO Flatt Security

See All by GMO Flatt Security
GMO Flatt Security 会社紹介資料
Avatar for GMO Flatt Security flatt_security
0
28k
S3はフラットである –AWS公式SDKにも存在した、 署名付きURLにおけるパストラバーサル脆弱性– / JAWS DAYS 2026
Avatar for GMO Flatt Security flatt_security
0
1.8k
LLMがCTFと脆弱性診断をどう変えていくのか / SECCON 14 電脳会議
Avatar for GMO Flatt Security flatt_security
0
83
Connection-based OAuthから学ぶOAuth for AI Agents
Avatar for GMO Flatt Security flatt_security
0
830
OSSをつくる人・つかう人と伴走するセキュリティ診断AIエージェント - その開発の歩み
Avatar for GMO Flatt Security flatt_security
2
120
セキュリティAIエージェントの現在と未来 / PSS #2 Takumi Session
Avatar for GMO Flatt Security flatt_security
3
1.9k
ブラウザ拡張のセキュリティの話 / Browser Extension Security
Avatar for GMO Flatt Security flatt_security
0
370
AIエージェントSaaSを安全に提供する技術 / Architecture Conference 2025
Avatar for GMO Flatt Security flatt_security
3
8.1k
How We Built a Secure Sandbox Platform for AI Agents
Avatar for GMO Flatt Security flatt_security
2
500

Featured

See All Featured
Utilizing Notion as your number one productivity tool
Avatar for Mfonobong Umondia mfonobong
4
260
Agile that works and the tools we love
Avatar for Rasmus Luckow-Nielsen rasmusluckow
331
21k
Organizational Design Perspectives: An Ontology of Organizational Design Elements
Avatar for Dr. Kim W Petersen kimpetersen
PRO
1
640
What’s in a name? Adding method to the madness
Avatar for The Alliance productmarketing
PRO
24
4k
The Curse of the Amulet
Avatar for Matthew Lei leimatthew05
1
10k
How to optimise 3,500 product descriptions for ecommerce in one day using ChatGPT
Avatar for Katarina Dahlin katarinadahlin
PRO
1
3.5k
Design of three-dimensional binary manipulators for pick-and-place task avoiding obstacles (IECON2024)
Avatar for konakalab konakalab
0
380
How Software Deployment tools have changed in the past 20 years
Avatar for Geshan Manandhar geshan
0
32k
Intergalactic Javascript Robots from Outer Space
Avatar for Vicent Martí tanoku
273
27k
Impact Scores and Hybrid Strategies: The future of link building
Avatar for Tamara Novitovic tamaranovitovic
0
230
The innovator’s Mindset - 
Leading Through an Era of Exponential Change - McGill University 2025
Avatar for Jean-Marc De Jonghe jdejongh
PRO
1
120
Gemini Prompt Engineering: Practical Techniques for Tangible AI Outcomes
Avatar for Mfonobong Umondia mfonobong
2
310

Transcript

  1. "SFZPVDPOUFOUXJUIPVSDVSSFOU BUUBDLTPO$POUFOU5ZQF  B[BSB !B@[BSB@O FJ !FJ  'MBUU4FDVSJUZJOD

  2. 6OFYQFDUFEQBUIGSPN)551SFTQPOTF  VOFYQFDUFEBUUBDLQBUI

  3. 4FMGJOUSPEVDUJPOFJ  &JKJ.PSJFJ 9!FJ  'MBUU4FDVSJUZJOD .VTDMF#SBJO

  4. /PSJIJEF4BJUPB[BSB 9!B@[BSB@O  'MBUU4FDVSJUZJOD 4FMGJOUSPEVDUJPOB[BSB  IUUQTNJTDB[BSBKQ3&"%.&

  5. 5PQJDT 

  6. 8IBUJT$POUFOU5ZQF  0MEBUUBDLQBUIJO)551SFTQPOTF /FXBUUBDLQBUIJO)551SFTQPOTF #VH#PVOUZQSPHSBNSFTFBSDI 044SFTFBSDI .JUJHBUJPOT 5PQJDT 

  7.  8IBUJT$POUFOU5ZQF 

  8. 8IBUJT$POUFOU5ZQF  

  9. 8IBUJT$POUFOU5ZQF  

  10. 8IBUJT$POUFOU5ZQF  

  11. 8IBUJT$POUFOU5ZQF  

  12. 8IBUJT$POUFOU5ZQF  

  13. 8IBUJT$POUFOU5ZQF  

  14.  0MEBUUBDLQBUIJO)551SFTQPOTF 

  15. 0MEBUUBDLQBUIJO)551SFTQPOTF  

  16. 0MEBUUBDLQBUIJO)551SFTQPOTF  

  17. 0MEBUUBDLQBUIJO)551SFTQPOTF  

  18. 0MEBUUBDLQBUIJO)551SFTQPOTF  

  19. 0MEBUUBDLQBUIJO)551SFTQPOTF   &YUFOTJPO QOHKQH  $POUFOU5ZQF JNBHFQOHJNBHFKQH  .BHJDCZUF

  20. 0MEBUUBDLQBUIJO)551SFTQPOTF   &YUFOTJPO QOHKQH  $POUFOU5ZQF JNBHFQOHJNBHFKQH  .BHJDCZUF

  21. 0MEBUUBDLQBUIJO)551SFTQPOTF  

  22.   /FXBUUBDLQBUIJO)551SFTQPOTF

  23. 8IBUJT0CKFDU4UPSBHF   %BUB .FUBEBUB

  24. 8IBUJT0CKFDU4UPSBHF   %BUB .FUBEBUB $POUFOU5ZQF

  25. /FXBUUBDLQBUIJO)551SFTQPOTF  

  26. /FXBUUBDLQBUIJO)551SFTQPOTF  

  27. /FXBUUBDLQBUIJO)551SFTQPOTF  

  28. /FXBUUBDLQBUIJO)551SFTQPOTF  

  29. /FXBUUBDLQBUIJO)551SFTQPOTF   'PSHPUWBMJEBUJPO

  30. /FXBUUBDLQBUIJO)551SFTQPOTF  

  31. /FXBUUBDLQBUIJO)551SFTQPOTF  

  32.  #VH#PVOUZQSPHSBNSFTFBSDI 

  33. %JTDPWFSZJO#VH#PVOUZQSPHSBN   /PWBMJEBUJPO

  34. %JTDPWFSZJO#VH#PVOUZQSPHSBN   /PUVTJOH4

  35. %JTDPWFSZJO#VH#PVOUZQSPHSBN   "DDVSBUFWBMJEBUJPO

  36.  044SFTFBSDI 

  37.  $PEFTFBSDI 

  38. $PEFTFBSDI  

  39. $PEFTFBSDI  

  40. $PEFTFBSDI   /PWBMJEBUJPOPSMBYWBMJEBUJPO

  41. $PEFTFBSDI   /PWBMJEBUJPOPSMBYWBMJEBUJPO 😨

  42.   /PWBMJEBUJPO

  43.  /PWBMJEBUJPOJO)551SFRVFTU 

  44. /PWBMJEBUJPO   /PWBMJEBUJPO

  45. /PWBMJEBUJPO&YBNQMF  

  46. /PWBMJEBUJPO&YBNQMF   6TFEJSFDUWBMVFT

  47. /PWBMJEBUJPO&YBNQMF  

  48. /PWBMJEBUJPO&YBNQMF   7BMJEBUJPO GSPOUFOEPOMZ

  49. /PWBMJEBUJPO&YBNQMF   6QMPBE UFYUIUNM

  50.  /PWBMJEBUJPOJO)551SFTQPOTF 

  51. /PWBMJEBUJPO   /PWBMJEBUJPO

  52. /PWBMJEBUJPO74$PEF&YUFOTJPO  

  53. /PWBMJEBUJPO74$PEF&YUFOTJPO   (FU UFYUIUNM

  54.   7BMJEBUJPOCZQBTT

  55.  7BMJEBUJPOCZQBTTJO)551SFRVFTU 

  56. 7BMJEBUJPOCZQBTT   -BYWBMJEBUJPO

  57. 7BMJEBUJPOCZQBTT   -BYWBMJEBUJPO

  58. #ZQBTTQBUUFSOT  Code Implementations Bypass Examples startsWith(“image/png”) image/png, text/html endsWith(“image/png”)

    text/html; image/png /^image\/png/ image/png, text/html includes(“image/png”) text/html; image/png

  59. 7BMJEBUJPOCZQBTT$7&  

  60. 7BMJEBUJPOCZQBTT$7&  

  61. 7BMJEBUJPOCZQBTT$7&  

  62. 7BMJEBUJPOCZQBTT$7&  

  63. 7BMJEBUJPOCZQBTT$7&  

  64. 7BMJEBUJPOCZQBTT$7&  

  65. 7BMJEBUJPOCZQBTT$7&  

  66. 7BMJEBUJPOCZQBTT$7&   #ZQBTT JNBHFQOH UFYUIUNM

  67.   7BMJEBUJPOCZQBTTJO)551SFTQPOTF

  68. 7BMJEBUJPOCZQBTT   -BYWBMJEBUJPO

  69. 7BMJEBUJPOCZQBTT   -BYWBMJEBUJPO

  70. 7BMJEBUJPOCZQBTT&MFDUSPO  

  71. 7BMJEBUJPOCZQBTT&MFDUSPO   #ZQBTT JNBHFQOH UFYUIUNM

  72. 7BMJEBUJPOCZQBTT$ISPNF&YUFOTJPO  

  73. 7BMJEBUJPOCZQBTT$ISPNF&YUFOTJPO   #ZQBTT UFYUIUNMQEG

  74.  .JUJHBUJPOT 

  75. 4FDVSJUZNFBTVSFTJOJNQMFNFOUBUJPO   z

  76. 4FDVSJUZNFBTVSFTJOJNQMFNFOUBUJPO   z

  77.  5IBOLZPVWFSZNVDIGPSMJTUFOJOH

  78. 3FGFSFODFT 

  79. ◦ "NB[PO4 ◦ IUUQTBXTBNB[PODPNKQT ◦ #MBDL'BODPOUFOUUZQFSFTFBSDI ◦ IUUQTHJUIVCDPN#MBDL'BODPOUFOUUZQFSFTFBSDICMPC NBTUFS944NE ◦

    $BSSJFSXBWF ◦ IUUQTHJUIVCDPNDBSSJFSXBWFVQMPBEFSDBSSJFSXBWF ◦ $7& ◦ IUUQTHJUIVCDPNDBSSJFSXBWFVQMPBEFSDBSSJFSXBWF TFDVSJUZBEWJTPSJFT()4"HYIYHGRIK 3FGFSFODF 

  80. 23DPEF  IUUQTTQFBLFSEFDLDPNGMBUU@TFDVSJUZBSFZPVDPOUFOUXJUIPVSDVSSFOUBUUBDLTPODPOUFOUUZQF

  81. #ZQBTTUFDIOJRVF   IUUQTCTJEFTUPLZPFOYTTVTJOHEJSUZDPOUFOUUZQFJODMPVEFSB

  82. '"2 

  83. 9445ISFBUT  4UPSFE944

  84. &TTFOUJBM5IJOHT   /PWBMJEBUJPO