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

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

Avatar for GMO Flatt Security GMO Flatt Security
August 05, 2024
2
410

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
Goに育てられ開発者向けセキュリティ事業を立ち上げた僕が今向き合う、AI × セキュリティの最前線 / Go Conference 2025
Avatar for GMO Flatt Security flatt_security
0
350
LLMアプリケーション開発におけるセキュリティリスクと対策 / LLM Application Security
Avatar for GMO Flatt Security flatt_security
7
1.9k
診断AIエージェントによるセキュリティの未来 – 著名OSS向け0-dayリサーチを例に
Avatar for GMO Flatt Security flatt_security
2
1.1k
セキュリティ診断AIエージェント「Takumi」の雇用によって実現する開発生産性の向上
Avatar for GMO Flatt Security flatt_security
0
300
AIエージェントの「作業場」としてのサンドボックス技術
Avatar for GMO Flatt Security flatt_security
1
66
セキュリティ診断AIエージェント Takumi がもたらす変化 - 著名OSS 向け0-dayリサーチを例に
Avatar for GMO Flatt Security flatt_security
0
91
「攻め」と「守り」で理解する PHP アプリケーション
Avatar for GMO Flatt Security flatt_security
1
360
セキュリティ視点からみる生成AIアプリケーションとMCP ~ 脅威とリスク、認可・権限 ~
Avatar for GMO Flatt Security flatt_security
5
3.9k
脅威をモデリングしてMCPのセキュリティ対策を考えよう
Avatar for GMO Flatt Security flatt_security
7
3.4k

Featured

See All Featured
ピンチをチャンスに：未来をつくるプロダクトロードマップ #pmconf2020
Avatar for Aki / @LoveIdahoBurger aki_iinuma
127
53k
Build your cross-platform service in a week with App Engine
Avatar for Jose L jlugia
232
18k
Large-scale JavaScript Application Architecture
Avatar for Addy Osmani addyosmani
514
110k
[Rails World 2023 - Day 1 Closing Keynote] - The Magic of Rails
Avatar for Eileen M. Uchitelle eileencodes
36
2.5k
Rebuilding a faster, lazier Slack
Avatar for samanthasiow samanthasiow
84
9.2k
Become a Pro
Avatar for Speaker Deck speakerdeck
PRO
29
5.5k
VelocityConf: Rendering Performance Case Studies
Avatar for Addy Osmani addyosmani
332
24k
Let's Do A Bunch of Simple Stuff to Make Websites Faster
Avatar for Chris Coyier chriscoyier
507
140k
The Cost Of JavaScript in 2023
Avatar for Addy Osmani addyosmani
53
9k
Git: the NoSQL Database
Avatar for Brandon Keepers bkeepers
PRO
431
66k
The Psychology of Web Performance [Beyond Tellerrand 2023]
Avatar for Tammy Everts tammyeverts
49
3.1k
Designing for Performance
Avatar for Lara Hogan lara
610
69k

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