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iOSアプリからVPN接続の検出をする
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noppefoxwolf
May 23, 2018
Technology
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iOSアプリからVPN接続の検出をする
noppefoxwolf
May 23, 2018
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Transcript
App Protection potatotips #51 1 — ! @noppefoxwolf, 2018
noppe @noppefoxwolf iOSΞϓϦσϕϩούʔ ! ͕͖Ͱ͢ʂ potatotipsॳࢀઓͰ͢ʂ 2 — ! @noppefoxwolf,
2018
3 — ! @noppefoxwolf, 2018
4 — ! @noppefoxwolf, 2018
Charles for iOS͕ൃച͞Ε·ͨ͠Ͷʂ → CharlesiOS͔Βͷ HTTP ͱ HTTPS ͷτϥϑΟο ΫΛΩϟϓνϟͰ͖ΔΞϓϦ
→ ௨৴ܥͷσόοάʹͱͯศརͰ͢ΑͶʂ 5 — ! @noppefoxwolf, 2018
ࣗͷΞϓϦͷ௨৴Λݟ͍ͯͨΒ… 6 — ! @noppefoxwolf, 2018
ࣗͷΞϓϦͷ௨৴Λݟ͍ͯͨΒ… ۮવCharlesΛ͚ͭͬͺͳ͠ͰTwitterͷΞϓϦΛ։͍ ͯ͠·ͬͨɻ 7 — ! @noppefoxwolf, 2018
λΠϜϥΠϯͷߋ৽͕ग़དྷ·ͤΜͰͨ͠ɻ 8 — ! @noppefoxwolf, 2018
ࠓճ͜ͷಈ࡞Λ࣮͠·ͨ͠ɻ 9 — ! @noppefoxwolf, 2018
Charlesͷ࣮ ·ͣCharlesͷ࣮Λ֬ೝ͠·͢ɻ try! Swift Tokyo 2018 - Introducing Charles for
iOS1 1 https://www.youtube.com/watch?v=RWotEyTeJhc 10 — ! @noppefoxwolf, 2018
Charlesͷ࣮ NetworkExtensionΛͬͯɺVPN2ίωΫγϣϯΛ ష͍ͬͯΔɻ iOSͷVPNͷৗ࣌ଓػೳΛ͑ΞϓϦ͔Βͯ͢ ͷIPτϥϑΟοΫ͕τϯωϦϯάग़དྷΔɻ3 3 https://developer.apple.com/documentation/networkextension 2 Virtual private
network ԾϓϥΠϕʔτωοτϫʔΫ 11 — ! @noppefoxwolf, 2018
ΞϓϦ͔ΒVPN͕షΒΕ͍ͯΔ͔νΣοΫग़དྷΕOKͦ͏ 12 — ! @noppefoxwolf, 2018
VPNݕग़ CFNetworking.frameworkΛ͏͜ͱͰɺݕग़Ͱ͖Δɻ CFNetworkCopySystemProxySettings() ↑ͰγεςϜͷΠϯλʔωοτϓϩΩγઃఆΛऔಘग़ དྷ·͢ɻ 13 — ! @noppefoxwolf, 2018
Swift.Unmanaged<__ObjC.CFDictionary>(_value: { "__SCOPED__" = { utun4 = { HTTPSPort =
8080; HTTPSProxy = "10.78.2.43"; }; }; }) __SCOPED__ʹϓϩΩγઃఆ͕ೖ͍ͬͯΔ tunؚ͕·ΕΔઃఆτϯωϧͳͷͰ͍ͯྑ͍…ʁ 14 — ! @noppefoxwolf, 2018
VPNDetector https://github.com/noppefoxwolf/VPNDetector 15 — ! @noppefoxwolf, 2018
! Ҏ্Ͱ͢ʂ ͋Γ͕ͱ͏͍͟͝·ͨ͠ 16 — ! @noppefoxwolf, 2018