Upgrade to Pro — share decks privately, control downloads, hide ads and more …
Sign up for free

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

Avatar for GMO Flatt Security GMO Flatt Security
August 05, 2024
470
2

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

More Decks by GMO Flatt Security

See All by GMO Flatt Security
AIエージェントの開発・提供におけるセキュリティリスクの論点と対策
Avatar for GMO Flatt Security flatt_security
2
610
Claude Mythos、Fable...フロンティアAIの最新動向と企業のセキュリティ対策
Avatar for GMO Flatt Security flatt_security
0
250
インシデント事例と
パッケージの全量解析に学ぶ
ソフトウェアサプライチェーンの守り方 / supply-chain-attack-defense
Avatar for GMO Flatt Security flatt_security
1
3.9k
コードを読まない時代の死角: 検出から検証へ、脆弱性診断AIエージェントの現在地 / state-of-vulnerability-ai-agents
Avatar for GMO Flatt Security flatt_security
4
1.3k
セキュアなコンテナイメージをつくろう 〜CVE-free コンテナイメージ「Takumi Images」の概要と裏話〜
Avatar for GMO Flatt Security flatt_security
3
310
AI Agent SaaS を支える自社仮想化基盤への挑戦と実運用 / ai-agent-saas-virtualization
Avatar for GMO Flatt Security flatt_security
3
5.9k
Mastra ソフトウェアサプライチェーン攻撃の概要と対応指針
Avatar for GMO Flatt Security flatt_security
1
90
ソフトウェアサプライチェーン攻撃対策として今からサクッとできること
Avatar for GMO Flatt Security flatt_security
2
320
更なる npm パッケージ侵害事件「Mini Shai-Hulud」徹底解説
Avatar for GMO Flatt Security flatt_security
1
640

Featured

See All Featured
Designing Experiences People Love
Avatar for Jonathan Moore moore
143
24k
Stop Working from a Prison Cell
Avatar for Chris Michel hatefulcrawdad
274
21k
Sam Torres - BigQuery for SEOs
Avatar for Tech SEO Connect techseoconnect
PRO
0
540
GraphQLとの向き合い方2022年版
Avatar for Yosuke Kurami quramy
50
15k
Designing for Timeless Needs
Avatar for Cassini Nazir cassininazir
1
470
SEO for Brand Visibility & Recognition
Avatar for Aleyda Solis aleyda
0
4.7k
Utilizing Notion as your number one productivity tool
Avatar for Mfonobong Umondia mfonobong
4
580
Understanding Cognitive Biases in Performance Measurement
Avatar for Philip Tellis bluesmoon
32
3k
Effective software design: The role of men in debugging patriarchy in IT @ Voxxed Days AMS
Avatar for Kenny Baas-Schwegler baasie
0
510
[Rails World 2023 - Day 1 Closing Keynote] - The Magic of Rails
Avatar for Eileen M. Uchitelle eileencodes
38
3k
技術選定の審美眼（2025年版） / Understanding the Spiral of Technologies 2025 edition
Avatar for Takuto WADA twada
PRO
120
120k
JavaScript: Past, Present, and Future - NDC Porto 2020
Avatar for David Neal reverentgeek
52
6.1k

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