PHPerのためのよくわかるCPU脆弱性解説 / What's Spectra for PHPers #phpconfuk

PHPカンファレンス福岡 2018の発表資料です。

Transcript

1. ௕୩઒ஐر 1)1FSͷͨΊͷΑ͘Θ͔Δ $16੬ऑੑղઆ
2. ௕୩઒
   ஐر !UPN[PI
3. ϥΠϑϫʔΫ
   ςοΫΧϯϑΝϨϯεӡӦࢀՃ
   
   8FC
   
   J04ΞϓϦ։ൃ
   
   Ϗʔϧ
   ిࢠ޻࡞ αοΧʔ؍ઓ
   Ϩϯλ ϧΧʔτϨʔε
   ʜ
   σδλϧαʔΧεגࣜձࣾ
   ෭ஂ௕$50 !UPN[PI
6. 8FC
   %FWFMPQNFOU
   XJUI 8&
   "3&
   )*3*/( IUUQXXXEHDJSDVTDPN 0NPUFTBOEP
   5PLZP
7. ࠓ೔ͷςʔϚ
8. $16ͷ੬ऑੑ
   4QFDUSF ε ϖ Ϋ λ ʔ
9. ೥݄೔
10. IUUQTHPPHMFQSPKFDU[FSPCMPHTQPUKQSFBEJOHQSJWJMFHFENFNPSZXJUITJEFIUNM
11. XJUI
    B
    TJEFDIBOOFM ࣙॻ
    ӳࣙ࿠
    PO
    UIF
    8&# QSJWJMFHFE 3FBEJOH NFNPSZ
12. XJUI
    B
    TJEFDIBOOFM ࣙॻ
    ӳࣙ࿠
    PO
    UIF
    8&# 3FBEJOH NFNPSZ QSJWJMFHFE
13. XJUI
    B
    TJEFDIBOOFM ࣙॻ
    ӳࣙ࿠
    PO
    UIF
    8&# 3FBEJOH NFNPSZ QSJWJMFHFE QSJWJMFHFE
    ʲ໊ʳʬUIF
    ʙʭಛݖ֊ڃʦ૚ʧ
    ʲܗʳಛݖΛ࣋ͭɺಛݖͷ͋Δ QSÍWɾJɾMFHFE
14. ಛݖྖҬͷϝϞϦΛ
 αΠυνϟωϧ੬ऑੑΛ࢖ͬͯಡΈࠐΉ
15. ͭ·Γ
16. ಡΊͯ͸͍͚ͳ͍ϝϞϦྖҬΛ
    ಡΊͯ͠·͏
17. ͱͯ΋େ͖ͳ࿩୊ʹͳͬͨ
20. ͳͥେ͖ͳ࿩୊ʹͳ͔ͬͨ
21. ᶃ
    ର৅ʢͱࢥΘΕΔʣ$16͕͘͢͝ଟ͍
22. 7BSJBOUT
    PG
    UIJT
    JTTVF
    BSF
    LOPXO
    UP
    BGGFDU
    NBOZ
    NPEFSO
    QSPDFTTPST
    JODMVEJOH
    DFSUBJO
    QSPDFTTPST
    CZ
    *OUFM
    ".%
    BOE
    "3. ᶃ
    ର৅ʢͱࢥΘΕΔʣ$16͕͘͢͝ଟ͍
23. 7BSJBOUT
    PG
    UIJT
    JTTVF
    BSF
    LOPXO
    UP
    BGGFDU
    NBOZ
    NPEFSO
    QSPDFTTPST
    JODMVEJOH
    DFSUBJO
    QSPDFTTPST
    CZ
    *OUFM
    ".%
    BOE
    "3. .BD
    8JOEPXTϚγϯ 8FCαʔόͳͲ֤छαʔό ᶃ
    ର৅ʢͱࢥΘΕΔʣ$16͕͘͢͝ଟ͍
24. 7BSJBOUT
    PG
    UIJT
    JTTVF
    BSF
    LOPXO
    UP
    BGGFDU
    NBOZ
    NPEFSO
    QSPDFTTPST
    JODMVEJOH
    DFSUBJO
    QSPDFTTPST
    CZ
    *OUFM
    ".%
    BOE
    "3. .BD
    8JOEPXTϚγϯ 8FCαʔόͳͲ֤छαʔό J1IPOF
    "OESPJE
    ϧʔλ
    *P5ػث ᶃ
    ର৅ʢͱࢥΘΕΔʣ$16͕͘͢͝ଟ͍
25. ᶄ
    ରࡦ͕औΓͮΒ͍
26. ᶄ
    ରࡦ͕औΓͮΒ͍ ৄࡉ͸ޙड़
27. ͲΜͳ੬ऑੑ͔
28. ͷલʹ$16جૅ஌ࣝ
29. جૅ஌ࣝ
    Ωϟογϡ
30. Ωϟογϡ
31. Ωϟογϡ $16ʹ಺ଂ͞Εͨߴ଎ͳϝϞϦ
32. Ωϟογϡ Ұ౓ಡΜͩσʔλ͸Ωϟογϡʹஔ͘ $16ʹ಺ଂ͞Εͨߴ଎ͳϝϞϦ
33. Ωϟογϡ ߴ଎ʹಈ࡞ͤ͞ΔͨΊ
    ʢϝϞϦ͸஗͍ʣ Ұ౓ಡΜͩσʔλ͸Ωϟογϡʹஔ͘ $16ʹ಺ଂ͞Εͨߴ଎ͳϝϞϦ
34. Ωϟογϡ ݱ୅ͷ$16͸ΩϟογϡΛଟ༻͢Δ ߴ଎ʹಈ࡞ͤ͞ΔͨΊ
    ʢϝϞϦ͸஗͍ʣ Ұ౓ಡΜͩσʔλ͸Ωϟογϡʹஔ͘ $16ʹ಺ଂ͞Εͨߴ଎ͳϝϞϦ
35. جૅ஌ࣝ
    ౤ػత࣮ߦ
36. զʑ͸1)1FSͳͷͰ
    1)1Ά͍ݴޠͰղઆ
37. ΞυϨε ಺༰  FDIP
    )FMMP  B
    
    SBOE   JG
    B
    
     \
    HPUP
    
    ^  FDIP
    1$  FYJU    FDIP
    l8PSME
38. ΞυϨε ಺༰  FDIP
    )FMMP  B
    
    SBOE   JG
    B
    
     \
    HPUP
    
    ^  FDIP
    1$  FYJU    FDIP
    l8PSME ʣ͜͜Β΁ΜΛ࣮ߦ͍ͯ͠Δ࣌ʹʜ
39. ΞυϨε ಺༰  FDIP
    )FMMP  B
    
    SBOE   JG
    B
    
     \
    HPUP
    
    ^  FDIP
    1$  FYJU    FDIP
    l8PSME ʣ͜͜Β΁ΜΛ࣮ߦ͍ͯ͠Δ࣌ʹʜ ʣઌߦͯ͜͜͠Β΁Μ΋࣮ߦ͢Δ
40. ΞυϨε ಺༰  FDIP
    )FMMP  B
    
    SBOE   JG
    B
    
     \
    HPUP
    
    ^  FDIP
    1$  FYJU    FDIP
    l8PSME ʣ͜͜Β΁ΜΛ࣮ߦ͍ͯ͠Δ࣌ʹʜ ʣઌߦͯ͜͜͠Β΁Μ΋࣮ߦ͢Δ ʣͷJGͷ݁ՌʹΑͬͯ͸
    
    
    
    
    ແବʹͳΔ͚Ͳ౤ػతʹ࣮ߦ͢Δ
41. جૅ஌ࣝ
    ྫ֎
42. $16 ΞυϨεۭؒ
    (# ΞυϨεόεCJU  G G G G G G G G GGGGGGGG
    
       
    
    (#
43. $16 ΞυϨεۭؒ
    (# ΞυϨεόεCJU  G G G G G G G G GGGGGGGG
    
       
    
    (# 04
44. $16 ΞυϨεۭؒ
    (# ΞυϨεόεCJU  G G G G G G G G GGGGGGGG
    
       
    
    (# 04 ϢʔβϓϩάϥϜ ϢʔβϓϩάϥϜ
45. $16 ΞυϨεۭؒ
    (# ΞυϨεόεCJU  G G G G G G G G GGGGGGGG
    
       
    
    (# 04 ϢʔβϓϩάϥϜ ϢʔβϓϩάϥϜ͕
 $16͕ڐՄ͠ͳ͍
 ྖҬͷϝϞϦʹ
 ΞΫηε͢Δͱྫ֎
 ϢʔβϓϩάϥϜ
46. IUUQMBCPSBUPSZTVCKQD IUNM
47. جૅ஌ࣝ
    ౤ػత࣮ߦ جૅ஌ࣝ
    Ωϟογϡ جૅ஌ࣝ
    ྫ֎
48. جૅ஌ࣝ
    ౤ػత࣮ߦ جૅ஌ࣝ
    Ωϟογϡ جૅ஌ࣝ
    ྫ֎ Ұ౓ϝϞϦ͔ΒಡΜͩσʔλΛߴ଎ͳϝϞϦʹஔ͍͓ͯ͘
49. جૅ஌ࣝ
    ౤ػత࣮ߦ جૅ஌ࣝ
    Ωϟογϡ جૅ஌ࣝ
    ྫ֎ Ұ౓ϝϞϦ͔ΒಡΜͩσʔλΛߴ଎ͳϝϞϦʹஔ͍͓ͯ͘ ઌͷํΛ࣮ߦ͓ͯ͘͠
50. جૅ஌ࣝ
    ౤ػత࣮ߦ جૅ஌ࣝ
    Ωϟογϡ جૅ஌ࣝ
    ྫ֎ Ұ౓ϝϞϦ͔ΒಡΜͩσʔλΛߴ଎ͳϝϞϦʹஔ͍͓ͯ͘ ઌͷํΛ࣮ߦ͓ͯ͘͠ $16͕ڐՄ͠ͳ͍ϝϞϦʹΞΫηε͢ΔͱΤϥʔ
51. $16ͷ੬ऑੑ
    4QFDUSF ε ϖ Ϋ λ ʔ
52. ͜ΜͳϝϞϦϚοϓΛ૝ఆ
53.     ''' ϢʔβϓϩάϥϜ ϢʔβϓϩάϥϜ ผͷϓϩάϥϜ
54. ͜ΜͳϓϩάϥϜ͕͋ͬͨͱ͢Δ
55. ΞυϨε ಺༰  FDIP
    )FMMP  B
    
    SBOE   JG
    B
    
     \
    HPUP
    
    ^  C
    
    SFBE    D
    
    SFBE C
    
      
    ʢΞΫηεݖͷͳ͍ΞυϨεʣ  
56. ΞυϨε ಺༰  FDIP
    )FMMP  B
    
    SBOE   JG
    B
    
     \
    HPUP
    
    ^  C
    
    SFBE    D
    
    SFBE C
    
      
    ʢΞΫηεݖͷͳ͍ΞυϨεʣ   ʣ͜͜Β΁ΜΛ࣮ߦ͍ͯ͠Δ࣌ʹʜ
57. ΞυϨε ಺༰  FDIP
    )FMMP  B
    
    SBOE   JG
    B
    
     \
    HPUP
    
    ^  C
    
    SFBE    D
    
    SFBE C
    
      
    ʢΞΫηεݖͷͳ͍ΞυϨεʣ   ʣ͜͜Β΁ΜΛ࣮ߦ͍ͯ͠Δ࣌ʹʜ ʣઌߦͯ͜͜͠Β΁Μ͕࣮ߦ͞ΕΔ
58. ΞυϨε ಺༰  FDIP
    )FMMP  B
    
    SBOE   JG
    B
    
     \
    HPUP
    
    ^  C
    
    SFBE    D
    
    SFBE C
    
      
    ʢΞΫηεݖͷͳ͍ΞυϨεʣ   ʣ͜͜Β΁ΜΛ࣮ߦ͍ͯ͠Δ࣌ʹʜ ʣઌߦͯ͜͜͠Β΁Μ͕࣮ߦ͞ΕΔ ʣͷ஋ΛCʹ֨ೲɻ
59. ΞυϨε ಺༰  FDIP
    )FMMP  B
    
    SBOE   JG
    B
    
     \
    HPUP
    
    ^  C
    
    SFBE    D
    
    SFBE C
    
      
    ʢΞΫηεݖͷͳ͍ΞυϨεʣ   ʣ͜͜Β΁ΜΛ࣮ߦ͍ͯ͠Δ࣌ʹʜ ʣઌߦͯ͜͜͠Β΁Μ͕࣮ߦ͞ΕΔ ʣͷ஋ΛCʹ֨ೲɻ ຊདྷ͸ྫ֎͕ൃੜ͢ΔΞΫηε
    ౤ػ࣮ߦத͸ྫ֎ൃੜ͠ͳ͍
    ʢൃੜͨ͠ΒࠔΔʣ
60. ΞυϨε ಺༰  FDIP
    )FMMP  B
    
    SBOE   JG
    B
    
     \
    HPUP
    
    ^  C
    
    SFBE    D
    
    SFBE C
    
      
    ʢΞΫηεݖͷͳ͍ΞυϨεʣ   ʣ͜͜Β΁ΜΛ࣮ߦ͍ͯ͠Δ࣌ʹʜ ʣઌߦͯ͜͜͠Β΁Μ͕࣮ߦ͞ΕΔ ʣͷ஋ΛCʹ֨ೲɻ ʣ C
    
     ͷ஋Λ

    
    
    
    
    Dʹ֨ೲɻ
61. ΞυϨε ಺༰  FDIP
    )FMMP  B
    
    SBOE   JG
    B
    
     \
    HPUP
    
    ^  C
    
    SFBE    D
    
    SFBE C
    
      
    ʢΞΫηεݖͷͳ͍ΞυϨεʣ   ʣ͜͜Β΁ΜΛ࣮ߦ͍ͯ͠Δ࣌ʹʜ ʣઌߦͯ͜͜͠Β΁Μ͕࣮ߦ͞ΕΔ ʣͷ஋ΛCʹ֨ೲɻ ʣ C
    
     ͷ஋Λ

    
    
    
    
    Dʹ֨ೲɻ w ʙGGͷൣғ
    w ϢʔβϓϩάϥϜ͔ΒΞΫηεͰ͖ΔྖҬ
    w ͜ͷΞΫηεͰʙGGͷ
 Ͳ͔͜ͷόΠτ͕Ωϟογϡʹ৐Δ
62. ΞυϨε ಺༰  FDIP
    )FMMP  B
    
    SBOE   JG
    B
    
     \
    HPUP
    
    ^  C
    
    SFBE    D
    
    SFBE C
    
      
    ʢΞΫηεݖͷͳ͍ΞυϨεʣ   ʣ͜͜Β΁ΜΛ࣮ߦ͍ͯ͠Δ࣌ʹʜ ʣઌߦͯ͜͜͠Β΁Μ͕࣮ߦ͞ΕΔ ʣͷ஋ΛCʹ֨ೲɻ ʣ C
    
     ͷ஋Λ

    
    
    
    
    Dʹ֨ೲɻ
63. ΞυϨε ಺༰  YY  YY  YY  YY  YY  YY  YY 
    
     GG YY ΞυϨε ಺༰  GPS
    J
    
    
    
    J
    
    
    J \ 
    
    TUBSU
    
    UJNF  
    
    E
    
    SFBE J
    
      
    
    FOE
    
    UJNF  
    
    JG
    FOE
    
    TUBSU
    
     \
    
    
    
    
    FDIP
    ͷ஋͸JͰͨ͠ʂʂ
    
    
    ^
     ^  SFUVSO
64. ΞυϨε ಺༰  YY  YY  YY  YY  YY  YY  YY 
    
     GG YY ΞυϨε ಺༰  GPS
    J
    
    
    
    J
    
    
    J \ 
    
    TUBSU
    
    UJNF  
    
    E
    
    SFBE J
    
      
    
    FOE
    
    UJNF  
    
    JG
    FOE
    
    TUBSU
    
     \
    
    
    
    
    FDIP
    ͷ஋͸JͰͨ͠ʂʂ
    
    
    ^
     ^  SFUVSO ॱ൪ʹಡΈࠐΈ͔͔ͯͬͨ࣌ؒ͠Λଌఆ
65. ΞυϨε ಺༰  YY  YY  YY  YY  YY  YY  YY 
    
     GG YY ΞυϨε ಺༰  GPS
    J
    
    
    
    J
    
    
    J \ 
    
    TUBSU
    
    UJNF  
    
    E
    
    SFBE J
    
      
    
    FOE
    
    UJNF  
    
    JG
    FOE
    
    TUBSU
    
     \
    
    
    
    
    FDIP
    ͷ஋͸JͰͨ͠ʂʂ
    
    
    ^
     ^  SFUVSO ॱ൪ʹಡΈࠐΈ͔͔ͯͬͨ࣌ؒ͠Λଌఆ ͚ͩ͘͢͝ಡΈࠐΈ͕଎͔ͬͨ
 ‎
    ͕Ωϟογϡʹ৐͍ͬͯͨ
    ‎
    ຊདྷಡΊͳ͍ͷ಺༰͸ͩͬͨ
66. ΞυϨε ಺༰  YY  YY  YY  YY  YY  YY  YY 
    
     GG YY ΞυϨε ಺༰  GPS
    J
    
    
    
    J
    
    
    J \ 
    
    TUBSU
    
    UJNF  
    
    E
    
    SFBE J
    
      
    
    FOE
    
    UJNF  
    
    JG
    FOE
    
    TUBSU
    
     \
    
    
    
    
    FDIP
    ͷ஋͸JͰͨ͠ʂʂ
    
    
    ^
     ^  SFUVSO ॱ൪ʹಡΈࠐΈ͔͔ͯͬͨ࣌ؒ͠Λଌఆ ΞυϨε ಺༰  FDIP
    )FMMP  B
    
    SBOE   JG
    B
    
     \
    HPUP
    
    ^  C
    
    SFBE    D
    
    SFBE C
    
      
    ʢΞΫηεݖͷͳ͍஋ʣ   ͚ͩ͘͢͝ಡΈࠐΈ͕଎͔ͬͨ
 ‎
    ͕Ωϟογϡʹ৐͍ͬͯͨ
    ‎
    ຊདྷಡΊͳ͍ͷ಺༰͸ͩͬͨ
67. ΞυϨε ಺༰  YY  YY  YY  YY  YY  YY  YY 
    
     GG YY ΞυϨε ಺༰  GPS
    J
    
    
    
    J
    
    
    J \ 
    
    TUBSU
    
    UJNF  
    
    E
    
    SFBE J
    
      
    
    FOE
    
    UJNF  
    
    JG
    FOE
    
    TUBSU
    
     \
    
    
    
    
    FDIP
    ͷ஋͸JͰͨ͠ʂʂ
    
    
    ^
     ^  SFUVSO ॱ൪ʹಡΈࠐΈ͔͔ͯͬͨ࣌ؒ͠Λଌఆ ΞυϨε ಺༰  FDIP
    )FMMP  B
    
    SBOE   JG
    B
    
     \
    HPUP
    
    ^  C
    
    SFBE    D
    
    SFBE C
    
      
    ʢΞΫηεݖͷͳ͍஋ʣ  
68. $16ͷ੬ऑੑ
    4QFDUSF ε ϖ Ϋ λ ʔ ʢݫີʹ͸4QFDUSFͱ.FMUEPXOͷ૊߹ͤʣ
69. ͜Μͳ͓࿩Ͱͨ͠
70. ͓΋͠Ζ͍Ͱ͢Ͷʂ
71. ͱ͜ΖͰʜ
72. ᶄ
    ରࡦ͕औΓͮΒ͍
73. ᶄ
    ରࡦ͕औΓͮΒ͍ wۙ୅ͷ$16͸ɺ໋ྩΛ୯७Խͯ͠$16಺ͷσό ΠεͰ෼ۀͯ͠ॲཧ͢Δ͜ͱͰߴ଎Խ͍ͯ͠Δɻ
    w$16ͷ֎ͷ஗͍σόΠεΛͨͩ଴ͪͨ͘ͳ͍ɻ
 $16಺ʹख͕ۭ͘σόΠεΛ࡞Γͨ͘ͳ͍ɻ
    w౤ػత࣮ߦͦ͜ߴ଎ԽͷΩϞɻ
74. ͓͠·͍ !UPN[PI w "TL
    UIF
    4QFBLFS
    w ࠙਌ձ
    w 5XJUUFS
    w #MPH
75. 
    ສ͕Ұ͕࣌ؒ༨ͬͨͱ͖ͷͨΊͷ
    ͓·͚
76. %ʙ% "ʙ" *OUFM
    1FOUJVN
    
77. %ʙ% "ʙ" *OUFM
    1FOUJVN
     ΞυϨεόεϏοτ
    ʙGGGGGGGG
    ͷ(#
    "ʙ"͸ݻఆ
    όΠτʢϏοτʣ୯ҐͷΞΫηε
    
78. ᶄ
    ରࡦ͕औΓͮΒ͍ wۙ୅ͷ$16͸ɺ໋ྩΛ୯७Խͯ͠$16಺ͷσό ΠεͰ෼ۀͯ͠ॲཧ͢Δ͜ͱͰߴ଎Խ͍ͯ͠Δɻ
    w$16ͷ֎ͷ஗͍σόΠεΛͨͩ଴ͪͨ͘ͳ͍ɻ
 $16಺ʹख͕ۭ͘σόΠεΛ࡞Γͨ͘ͳ͍ɻ
    w౤ػత࣮ߦͦ͜ߴ଎ԽͷΩϞɻ
79. Ͳ͏΍ͬͯରࡦ͍ͯ͠Δ͔
80. $16 ΞυϨεۭؒ
    (# ΞυϨεόεCJU  G G G G G G G G GGGGGGGG
    
       
    
    (# 04 ϢʔβϓϩάϥϜ
81. ෼ذ༧ଌόοϑΝ
82. ෼ذ༧ଌόοϑΝ w෼ذΛ༧ଌͰ͖Δͱ౤ػ࣮ߦ͕ແବʹͳΓʹ͍͘ɻخ͍͠ɻ
    wաڈͷ෼ذΛهԱ͓͍ͯͯ͠ɺ֬཰తͳφχͰ༧ଌ͢Δɻ
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