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IAMの地味なUpdateをご紹介_掲載用.pdf
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yhamano
December 17, 2019
Technology
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IAMの地味なUpdateをご紹介_掲載用.pdf
yhamano
December 17, 2019
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Transcript
Ops JAWS Meetup#17 re:Invent2019 Recap IAMͷຯͳUpdateΛ͝հ
ࠓΛҾͨ͘͘͞Μͷൃද͕͋Γ·ͨ͠ w&,4͕͍ͭʹ'BSHFUFରԠʂ IUUQTBXTBNB[PODPNKQCMPHTOFXTBNB[POFLTPOBXTGBSHBUFOPXHFOFSBMMZBWBJMBCMF w%FFQγϦʔζͱͯ͠%FFQ$PNQPTFS͕ؒೖΓʂ IUUQTBXTBNB[PODPNKQEFFQDPNQPTFS w"*ܥαʔϏεͷ6QEBUF͕നԡ͠ʂ
ओཁαʔϏεͷհଞͷํʹ͓ͤͯ͠ɺ ࢲ͔Βຯͳ6QEBUFΛҰ͚ͭͩ͝հ͠·͢
͝հ͢Δ6QEBUF *".ϩʔϧೝূใͷ࠷ऴ༻͕࣌ औಘͰ͖ΔΑ͏ʹͳΓ·ͨ͠ʂʂ https://aws.amazon.com/jp/about-aws/whats-new/2019/11/identify-unused-iam-roles-easily-and-remove-them-confidently-by-using-the-last-used-timestamp/
Ϛωδϝϯτίϯιʔϧ
BXTJBNHFUSPMFSPMFOBNFUFTUSPMF \ 3PMF\ ɾ ɾ ɾ 3PMF-BTU6TFE\ -BTU6TFE%BUF5YYYYYY; 3FHJPOBQOPSUIFBTU
$-*
ຯ͗͢ΔΞοϓσʔτ wϖʔδʹٴͿ#MBDL#FMUࢿྉʹ هࡌແ͠ w"84+ُా͞ΜͷϒϩάͰߦ͚ͩ հ
࠷ऴ༻͕࣌औಘͰ͖ΔͱͲ͏͍͏໘Ͱ ϋοϐʔʹͳΕΔ͔આ໌͍͖ͯ͠·͢
ͪΐͬͱ࣭ Έͳ͞Μ*".ͬͯ·͔͢ʁ
"84ͬͯΔ㲈*".ͬͯΔ "84Λ༻͢Δ্Ͱɺ*".΄΅ඞਢ
*".͓͞Β͍ *". "84*EFOUJUZBOE.BOBHFNFOU "84ར༻ʹؔ͢ΔೝূೝՄΛ࢘ΔαʔϏε w*".Ϣʔβ ‣ "84αʔϏεͷΞΫηεΛߦ͏ݸਓɺγεςϜ͕ར༻͢Δ w*".άϧʔϓ ‣
ಉҰׂΛ࣋ͭ*".ϢʔβΛάϧʔϓԽ͢Δ w*".ϩʔϧɹɹˡࠓͷϝΠϯ ‣ "84αʔϏεʹରͯ͠"84αʔϏεͷૢ࡞ݖݶΛ༩͑Δ w*".ϙϦγʔ ‣ "84αʔϏεͷΞΫηεݖݶΛ·ͱΊͨͷ
*".ϩʔϧ૿৩͕ͪ͠ wϦιʔεϨϕϧͰ༩͢ΔݖݶΛ͚Α͏ͱ͢ΔͱϦιʔε*".ϩʔ ϧ͕ඞཁʹͳΔ wϚωδϝϯτίϯιʔϧ͔ΒͷϦιʔε࡞࣌ʹϙϦγʔΛΑ͠ͳʹ༩ ͨ͠*".ϩʔϧΛ࡞ͯ͘͠ΕΔ͜ͱ͕͋Δ
ະ༻ͷ*".ϩʔϧΓ͍͢ wϦιʔεআ࣌Ұॹʹআͯ͘͠Εͳ͍ w*".ϩʔϧࣗମʹ՝͕ۚൃੜ͠ͳ͍ͷͰɺ ҙࣝతʹআ͠Α͏ͱͳΓʹ͍͘ w୨Է͠͠Α͏ʹɺ֤ؔॴ͕ଟ͗͢Δͱɺ ͍͍ͪͪώΞϦϯάͯ͠ΒΕͳ͍
ະ༻ͷ*".ϩʔϧ͕͋Δͱμϝʁ wཧෛՙ͕૿͑Δ wҙਤ͠ͳ͍"84αʔϏεʹؔ࿈͚ͮΒΕΔϦεΫ͕૿͑Δ
ະ༻ͷ*".ϩʔϧ ͪΌΜͱແޮԽPSআ͠·͠ΐ͏ʂ
ະ༻ͷ*".ϩʔϧΛݟ͚ͭΔ ࠷ऴ༻͔࣌Β Ұఆظؒܦա͍ͯ͠Δ*".ϩʔϧΛະ༻ͱΈͳ͢
୨Էࣗ͠ಈԽ खಈ୨Է͠৭ʑͱ൵͠Έ͕ଟ͍ͷͰ "84$POpH3VMFTΛͬͯࣗಈԽ͠Α͏ʂ
"84$POpH3VMFT͓͞Β͍ w"84$POpH3VMFT ‣"84αʔϏε͕ɺఆٛͨ͠ઃఆঢ়ଶͱͳ͍ͬͯΔ͔ΛධՁ ‣"84͕ఏڙ͢ΔϚωʔδυϧʔϧͱϢʔβଆͰࣗ༝ʹධՁ༰Λ ఆٛͰ͖ΔΧελϜϧʔϧ͕͋Δ ‣ධՁճʹର͢Δ՝ۚͱͳ͓ͬͯΓ͓͍҆ ݄d
"84$POpH3VMFTΛ༻͍ͨࣗಈ୨Է͠ ఆظతʹ$POpH3VMFΛىಈ -BNCEBΛݺͼग़͢ *".ϩʔϧͷྻڍͱ࠷ऴ༻࣌Λऔಘ͢Δ"1*Λݺͼग़͢ *"."1*ͷ݁ՌΛ-BNCEBʹฦ͢ ४ڌඇ४ڌͷ݁ՌΛ$POpHʹઃఆ ࠷ऴ༻͔࣌Βʓʓؒܦա͍ͯ͠Δ͔ΛνΣοΫ͢ΔΧελϜϧʔϧ https://aws.amazon.com/jp/blogs/security/continuously-monitor-unused-iam-roles-aws-config/
"84$POpH3VMFT݁Ռ
ࣗಈम෮Մೳʂ 44."VUPNBUJPOͱ࿈ܞͨ͠ඇ४ڌϦιʔεͷࣗಈम෮ wϩʔϧࣗମͷআ wϩʔϧอ࣋͢Δ͕ɺશڋ൱͢ΔϙϦγʔΛΞλον
·ͱΊ w *".ϩʔϧͷ࠷ऴར༻͕͔࣌ΔΑ͏ʹͳΓ·ͨ͠ w ະ༻*".ϩʔϧΛࣗಈ୨Էͯ͠͠ɺηΩϡϦςΟΛ୲อ ͠·͠ΐ͏
͝੩ௌ ͋Γ͕ͱ͏͍͟͝·ͨ͠