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Android開発でmitmproxyを使った話
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bigbackboom
December 18, 2018
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1.3k
Android開発でmitmproxyを使った話
bigbackboom
December 18, 2018
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Transcript
Android։ൃͰ mitmproxyΛͬͨ
Who am I? — ٠/bigbackboom — גࣜձࣾΞΠελΠϧɹ ϝσΟΞ։ൃ౷ׅ෦ ΞϓϦάϧʔϓ —
ͳΜͪΌͬͯAndroid։ൃऀ — ࠷ۙαʔόʔαΠυ Golangʹුؾத — ҟ໊ɿ͓٠ɺ٠ɺ٠͞Μ
ܦҢ — responseͷΛॻ͖͑ͯɺຊ൪ڥͰΞϓϦͷڧ੍Ξο ϓσʔτͷςετ͕͍ͨ͠ɻ — iOSCharlesΛ͑Ͱ͖Δ͕ɺAndroidʁ — CharlesͰ͍͚Δ͚ͣͩͲɺͳΜ͔httpsΩϟονͰ͖ͳ ͍Αɾɾɾ(´ŋωŋ`) —
Charles͕ͩΊͳΒଞͷΞϓϦέʔγϣϯ୳ͯ͠ΈΑ͏ʂ
mitmproxy — Charlesͱ΄΅ಉͷػೳΛఏڙ͢ΔOSS — UIίϚϯυϕʔε — WebUIʢβʣ·Ͱ͋Δʂ
ݒ೦ — ਖ਼ίϚϯυϥΠϯϕʔε͕ɾɾɾͬͨΔ͍
ͱ͍͑ɾɾɾଞʹํ๏ͳ͍
ͱΓ͋͑ͣͬͯݟΔ͖
Πϯετʔϧ $ brew install mitmproxy
ىಈ $ mitmproxy -p ϙʔτ൪߸
ΞϓϦͷ४උ 1. pcͷipΞυϨεΛϝϞ 2. AndroidΛ༻ҙͯ͠ɺઃఆʼWi-Fiͱը໘ΛભҠ 3. ଓࡁΈͷwifiΛԡ͢͠Δͱɺ"ωοτϫʔΫΛมߋ"ͷ߲͕ग़ΔͷͰλοϓ͢Δ 4. දࣔ͞ΕͨΟϯυͷ”ৄࡉઃఆ߲"ͷϓϩΩγ߲Λखಈʹมߋ͢Δ 5.
Ճදࣔ͞Ε߲ͨͷ”ϓϩΩγͷϗετ໊”ʹᶃͷipΞυϨεΛೖྗ͢Δ 6. ”ϓϩΩγϙʔτʹ”mitmproxyىಈ࣌ʹ༻ͨ͠ϙʔτ൪߸Λೖྗ 7. อଘϘλϯΛλοϓ͢Δ(*1) 8. ϒϥβΛ։͖ɺ"mitm.it"ΛΞυϨεʹೖྗ͢Δ(࣍ϖʔδը૾ࢀর) 9. ։͍ͨϖʔδͷAndroidϩΰͷϘλϯΛԡͯ͠ɺূ໌ॻΛμϯϩʔυɾΠϯετʔϧ͢Δ
None
ͦͯ͠ɾɾɾಈ͔ͯ͠ΈΔ
Https͕औΕ͍ͯͳ͍ͩͱʁ
ͦͯ͜͠ͷ ใ Λݟ͚ͭΔ "ࣗͷΞϓϦͰड͚͚ΔΑ͏ʹ͢ΔʹωοτϫʔΫɾη ΩϡϦςΟͷઃఆΛΞϓϦʹՃ͢Δඞཁ͕͋ΔΑ͏Ͱ͢ɻ"
None
ͬͯΈΑ͏ — app/src/main/res/xmlʹnetwork_security_config.xml Λ࡞ɻҎԼͷ༰Λهड़ɻ <network-security-config> <!-- ͜͜ΛೖΕͯͳ͍ͱɺຊ൪ͷڥͰڐՄΛग़ͤͪΌ͏ͷͰҙ͕ඞཁΒ͍͠ --> <debug-overrides> <trust-anchors>
<!-- Additionally trust user added CAs --> <certificates src="user" /> </trust-anchors> </debug-overrides> </network-security-config>
— AndroidManifest.xmlʹҎԼΛه <application android:networkSecurityConfig="@xml/network_security_config" > ... </application>
τϥΠΞήΠϯ
None
࣮ɾɾɾcharlesͰ͍͚ͨ Android7͔ΒcharlesͰssl௨৴͕ݟΕͳ͘ͳͬͨ݅
·ͱΊ — charlesͷଞʹແྉͷmitmproxy͕͋Δ — ͍উखݴ͏΄Ͳѱ͘ͳ͍ — Android 7Ҏ্͔Β໌ࣔతʹূ໌ॻͷڐՄΛϓϩδΣΫτ ʹઃఆ͢Δඞཁ͕͋Δ