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情報セキュリティ勉強会 実践編
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Yusuke Saito
August 30, 2017
Technology
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情報セキュリティ勉強会 実践編
Webアプリの脆弱性対策について
Yusuke Saito
August 30, 2017
Transcript
61 slides
ηΩϡϦςΟษڧձ ࣮ફฤ 2017/08/30
࣍ 1. ྫͷΞϨ 2. WebγεςϜ͕ड͚Δ߈ܸͱ 3. Δ͖ରࡦͱ 4. ੬ऑੑͷݟ͚ͭํͱ
ྫͷΞϨ
IUUQXXXTPGUJDPSKQTFNJ@PQQEG
ηΩϡϦςΟରࡦͬͯͨΓલ SQLΠϯδΣΫγϣϯ͕ݪҼͰΧʔυใ͕ྲྀग़ͨ͠ࣄ݅Ͱ͢ɻ ܾͷϙΠϯτɺ
ηΩϡϦςΟରࡦͬͯͨΓલ SQLΠϯδΣΫγϣϯ͕ݪҼͰΧʔυใ͕ྲྀग़ͨ͠ࣄ݅Ͱ͢ɻ ܾͷϙΠϯτɺ
ηΩϡϦςΟରࡦͬͯͨΓલ SQLΠϯδΣΫγϣϯ͕ݪҼͰΧʔυใ͕ྲྀग़ͨ͠ࣄ݅Ͱ͢ɻ ܾͷϙΠϯτɺ
SQLΠϯδΣΫγϣϯରࡦΛࢪͨ͠ ϓϩάϥϜΛఏڙ͖͢࠴
ಉ࣌ʹɺ
ʮ·͍͠ʯඞਢͰͳ͍
ʮ·͍͠ʯඞਢͰͳ͍
ʮ·͍͠ʯඞਢͰͳ͍
ͯ͞ɺԿ͕Δඞཁͷ ͋Δରࡦͳͷ͔
None
None
None
෮श͠·͠ΐ͏ɻ
ࡋͰෛ͚ͳ͍ͨΊͷྗ ʮࡋରࡦʯͱͯ͠ɺԼهͷΑ͏ͳυΩϡϝϯτʹॻ͍ͯ ͋Δ͜ͱɺʮͬͯͨΓલʯͱ͍͏ѻ͍Λड͚·͢ɻ
ࡋͰෛ͚ͳ͍ͨΊͷྗ ʮࡋରࡦʯͱͯ͠ɺԼهͷΑ͏ͳυΩϡϝϯτʹॻ͍ͯ ͋Δ͜ͱɺʮͬͯͨΓલʯͱ͍͏ѻ͍Λड͚·͢ɻ ๏ɾྩɾলྩ
ࡋͰෛ͚ͳ͍ͨΊͷྗ ʮࡋରࡦʯͱͯ͠ɺԼهͷΑ͏ͳυΩϡϝϯτʹॻ͍ͯ ͋Δ͜ͱɺʮͬͯͨΓલʯͱ͍͏ѻ͍Λड͚·͢ɻ ๏ɾྩɾলྩ ܦࡁ࢈ۀলͷΨΠυϥΠϯ
ࡋͰෛ͚ͳ͍ͨΊͷྗ ʮࡋରࡦʯͱͯ͠ɺԼهͷΑ͏ͳυΩϡϝϯτʹॻ͍ͯ ͋Δ͜ͱɺʮͬͯͨΓલʯͱ͍͏ѻ͍Λड͚·͢ɻ ๏ɾྩɾলྩ ܦࡁ࢈ۀলͷΨΠυϥΠϯ *1"ͷΨΠυϥΠϯ
ࡋͰෛ͚ͳ͍ͨΊͷྗ ʮࡋରࡦʯͱͯ͠ɺԼهͷΑ͏ͳυΩϡϝϯτʹॻ͍ͯ ͋Δ͜ͱɺʮͬͯͨΓલʯͱ͍͏ѻ͍Λड͚·͢ɻ ๏ɾྩɾলྩ ܦࡁ࢈ۀলͷΨΠυϥΠϯ *1"ͷΨΠυϥΠϯ ۀքஂମͷΨΠυϥΠϯ
WebγεςϜ͕ड͚Δ ߈ܸͱ
ใηΩϡϦςΟ10େڴҖ
ใηΩϡϦςΟ10େڴҖ
OWASP Top10 OWASP (The Open Web Application Security Project) ͕ൃද͢Δɺॏ
ཁͳڴҖΛ·ͱΊͨυΩϡϝϯτɻϦεΫͷߴ͞߈ܸγφϦΦ·ͱ ·͍ͬͯΔͷͰɺඇৗʹࢀߟʹͳΔɻ https://www.owasp.org/images/7/79/OWASP_Top_10_2013_JPN.pdf
OWASP Top10 (2013)
OWASP Top10 (2013)
OWASP Top10 (2013)
OWASP Top10 (2013)
Δ͖ରࡦͱ
҆શͳΣϒαΠτͷ࡞Γํ http://www.ipa.go.jp/security/vuln/websecurity.html
҆શͳΣϒαΠτͷ࡞Γํ ։ൃ࣌ʹ࣮ࢪ͖͢ηΩϡϦςΟରࡦʹ͍ͭ ͯ·ͱΊΒΕ͍ͯ·͢ɻ
҆શͳΣϒαΠτͷ࡞ΓํɹνΣοΫϦετ
੬ऑੑͷݟ͚ͭํ
Σϒ݈߁அ༷ ΣϒΞϓϦͷ੬ऑੑݕࠪͷํ๏ʹ͍ͭͯ· ͱΊΒΕ͍ͯ·͢ɻ
੬ऑͳαΠτͰ੬ऑੑΛݟ͚ͭͯΈΑ͏
WebGoat IUUQTHJUIVCDPN8FC(PBU8FC(PBU ͓खܰʹ੬ऑੑΛࢼͤΔ 8FCΞϓϦέʔγϣϯɻ ͱͬͯ੬ऑʂ
੬ऑ͗ͯ͢֎ʹཱͯΔͷ ጨΒΕΔͷͰ
ΦεεϝDockerͰʂ docker run -p 8080:8080 webgoat/webgoat-7.1
IUUQMPDBMIPTU8FC(PBU HVFTUHVFTUͰϩάΠϯͨ͠Β
ϝχϡʔ͔Βࢼ͍ͨ͠੬ऑੑΛ୳ͯ͠༡΅͏ʂ
੬ऑੑνΣοΫπʔϧ 08"41;"1 08"41͕ఏڙ͢Δπʔϧɻ IUUQTXXXPXBTQPSHJOEFYQIQ08"41@;FE@"UUBDL@1SPYZ@1SPKFDU
OWASP ZAPͷ͍ํ ϩʔΧϧϓϩΩγฤʢ̍ʣ ;"1ͷΦϓγϣϯ͔ΒɺʮϩʔΧϧɾ ϓϩΩγʯΛઃఆ͢Δɻ ઌఔͷ8FC(PBU͕Ͱಈ͍͍ͯ Δͱࢥ͏ͷͰɺॏͳΒͳ͍ϙʔτͰಈ ͔͠·͠ΐ͏ʂʢྫͰʣ
OWASP ZAPͷ͍ํ ϩʔΧϧϓϩΩγฤʢ̎ʣ ωοτϫʔΫઃఆ͔Β8FCϓϩ ΩγΛઃఆɻઌఔͷ;"1Ͱઃఆ ͨ͠ϙʔτΛࢦఆͯ͠Լ͍͞ɻ
OWASP ZAPͷ͍ํ ϩʔΧϧϓϩΩγฤʢ̏ʣ ϒϨʔΫઃఆΛ0/
OWASP ZAPͷ͍ํ ϩʔΧϧϓϩΩγฤʢ̏ʣ ϒϨʔΫઃఆΛ0/
OWASP ZAPͷ͍ํ ϩʔΧϧϓϩΩγฤʢ̐ʣ ϒϥβ͔Β ΞΫηεΛ࣮ߦ
OWASP ZAPͷ͍ํ ϩʔΧϧϓϩΩγฤʢ̑ʣ ΞΫηεΛั֫ʂ
OWASP ZAPͷ͍ํ ϩʔΧϧϓϩΩγฤʢ̒ʣ
OWASP ZAPͷ͍ํ ϩʔΧϧϓϩΩγฤʢ̒ʣ ύϥϝʔλΛॻ͖͑ͯ
OWASP ZAPͷ͍ํ ϩʔΧϧϓϩΩγฤʢ̒ʣ ύϥϝʔλΛॻ͖͑ͯ (0
OWASP ZAPͷ͍ํ ϩʔΧϧϓϩΩγฤʢ̓ʣ Ϩεϙϯε͕ฦͬͯ͘Δʂ
OWASP ZAPͷ͍ํ ϩʔΧϧϓϩΩγฤʢ̓ʣ Ϩεϙϯε͕ฦͬͯ͘Δʂ ଓ͖Λ(0ʂ
OWASP ZAPͷ͍ํ ϩʔΧϧϓϩΩγฤʢ̔ʣ ϒϥβʹϨεϙϯε͕දࣔ͞ΕΔʂ
͓खܰʹ͍ΖΜͳ੬ऑੑΛπʔϧͰ νΣοΫͯ͘͠ΕͨΒ͍͍ͷʹʂ
OWASP ZAPͷ͍ํ ηΩϡϦςΟεΩϟϯฤʢ̍ʣ
OWASP ZAPͷ͍ํ ηΩϡϦςΟεΩϟϯฤʢ̍ʣ ΫΠοΫελʔτ͔Β
OWASP ZAPͷ͍ํ ηΩϡϦςΟεΩϟϯฤʢ̍ʣ ΫΠοΫελʔτ͔Β 63-Λೖྗͯ͠
OWASP ZAPͷ͍ํ ηΩϡϦςΟεΩϟϯฤʢ̍ʣ ΫΠοΫελʔτ͔Β 63-Λೖྗͯ͠ (0
OWASP ZAPͷ͍ํ ηΩϡϦςΟεΩϟϯฤʢ̎ʣ ࣌ؒ݁ߏ͔͔Δɻ ʢવαΠτنʹΑΔʣ ͜ΕSVCZHPBUͱ͍͏ผͷ(PBUͰͷ݁Ռɻ ɻ
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