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Looking Back: 2023

Looking Back: 2023

Reviewing chapter activities in 2023. (OWASP Saitama MTG #17, talk #1)

Takahiro Yoshimura

December 18, 2023
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  1. LOOKING BACK: 2023 OWASP SAITAMA MTG #17, TALK #1 Image

    by Abubakr Saeed on flickr, CC-BY 2.0
  2. TEXT WHO I AM ▸ Takahiro Yoshimura (@alterakey) https://keybase.io/alterakey ▸

    Monolith Works Inc. Co-founder, CTO Security researcher ▸ ໌࣏େֶαΠόʔηΩϡϦςΟݚڀॴ ٬һݚڀһ
  3. TEXT WHAT I DO ▸ Security research and development ▸

    iOS/Android Apps →Financial, Games, IoT related, etc. (>200) →trueseeing: Non-decompiling Android Application Vulnerability Scanner [2017] ▸ Windows/Mac/Web/HTML5 Apps →POS, RAD tools etc. ▸ Network/Web penetration testing →PCI-DSS etc. ▸ Search engine reconnaissance (aka. Google Hacking) ▸ Whitebox testing ▸ Forensic analysis
  4. TEXT WHAT I DO ▸ CTF ▸ Enemy10, Sutegoma2 ▸

    METI CTFCJ 2012 Qual.: Won ▸ METI CTFCJ 2012: 3rd ▸ DEF CON 21 CTF: 6th ▸ DEF CON 22 OpenCTF: 4th ▸ ൃදɾߨԋͳͲ DEF CON 25 Demo Labs (2017) DEF CON 27 AI Village (2019) CODE BLUE (2017, 2019) CYDEF (2020) etc. Image by Wiyre Media on flickr, CC-BY 2.0
  5. TEXT FEBURARY - #12 ▸ 2023೥ॳΊͷ։࠵ ▸ य़೔෦ࢢ։࠵: ;Ε͍͋Ωϡʔϒ 4F

    ▸ ͜ͷ࣌࠙਌ձΛߦͳͬͨϐβ԰͕௵Εͨ… orz Image by Erik Weibust on flickr, CC-BY-NC-ND 2.0
  6. TEXT FRONT: TICKET TO THE DARK WORLD ▸ ແ๏஍ଳͰ͋ΔμʔΫ΢Σϒ؀ڥ ▸

    ΞΫηεʹ͸Torϒϥ΢β͕ཁٻ͞ΕΔ͕஗͍ →Tor͸Firefox ESR →Firefoxࣗମͷվྑ͕ਐΜͰ͍Δͷ͕ͩ… ▸ Ͱ͸ࣗՈ੡؀ڥ͕ͲΕ͚ͩ௨༻͢Δͷ͔ʁ ·ͨΑΓ҆શͳ؀ڥΛ࡞Δʹ͸ʁ →ݕূͩʂ Image by Alexandre Gallier on flickr, CC-BY-NC-ND 2.0
  7. TEXT FRONT: TAKEAWAYS ▸ ແ๏஍ଳͰ͋ΔμʔΫ΢Σϒ؀ڥ ▸ ܾͯ͠φϝͯ͸͍͚ͳ͍JSͷࣥ೦Λ֞ؒݟͨճ →non-JS؀ڥͳΒRFP+FPI+গ͠ͷ޻෉ͰΠέΔ →JS؀ڥ͸͔ͳΓͷϦεΫ; Torϒϥ΢β͕ඞਢ

    →͍ͣΕʹͯ͠΋શը໘Ϟʔυͷ࢖༻͸ઈରNG ▸ ΑΓ҆શͳ؀ڥΛ࡞Δʹ͸ʁ →Torϒϥ΢βΛجຊతʹSafestͰӡ༻ →Extensionͷಋೖ: uBO/LocalCDN͸༗ޮ ※Hard mode͕ྑ͍͕ڐՄཤྺʹ஫ҙ Image by Andrew on flickr, CC-BY-NC-ND 2.0
  8. TEXT FRONT: TAKEAWAYS ▸ ແ๏஍ଳͰ͋ΔμʔΫ΢Σϒ؀ڥ ▸ ͋ͳͨΛ͍ͭͰ΋ݟकΔGuard nodeͷڪා →Guard node͸ϓϥΠόγʔͷΞΩϨε伳

    →ཱީิ͑͢͞Ε͹୭Ͱ΋ͳΕΔ →ͨ·ʹଟ਺ͷಉ࣭ϊʔυʹΑΔcampaign͕ ▸ ͦΜͳ૷උͰେৎ෉͔ʁ — େৎ෉ͩ໰୊ͳ͍ (r …ͦΜͳల։͕ී௨ʹ͋Δੈք; ▸ ৴པͰ͖ΔbridgeΛେ੾ʹɺͲ͏͔҆͝શʹɻ Image by KaCey97078 on flickr, CC-BY-NC 2.0
  9. TEXT FRONT: TAKEAWAYS ▸ ৘ใ࿙Ӯʹ͍ͭͯ͸एׯ૽͗ա͗ͷײ →ͦͷ··corpusʹೖΔΘ͚Ͱ΋ͳ͍ →ΦϓτΞ΢τ΋Ͱ͖Δ (OpenAIͷΈ) ※Ή͠ΖGoogleͳͲͷ΄͏͕໰୊ ▸

    Prompt Injection: ࣗવݴޠڥք͕ᐆດͳ͜ͱΛར ༻ͯ͠ࢦྩΛૠೖ͢Δ߈ܸ →׬શʹ๷ޚ͢Δखཱͯ͸ݱঢ়ͳ͍ →೔ຊޠͰ΋े෼ʹ༗ޮ →ར༻͢ΔͳΒϦεΫϔοδࡦΛ Image by Howard Ignatius on flickr, CC-BY-NC-ND 2.0
  10. KIA? CHALLENGE? ➤ ʮKia BoyzʢىѥϘʔΠζʣʯͱ͸ɺى ѥࣗಈंΛ౪Έɺ౪ΜͩؖࠃंΛ࢖ͬͯ ๫૸ӡసɺ৐ΓࣺͯɺࣄނΛى͜͢ͳͲ ͨ͠ಈըΛTiktok΍YouTubeͳͲʹ౤ߘ ͢ΔςΟʔϯΤʔδϟʔͷ͜ͱ ➤

    ͜ͷ“ѱ࣭ͳήʔϜ”ͷ͜ͱΛʮKia ChallengeʢىѥνϟϨϯδʣʯ·ͨ͸ ʮKia Boyz ChallengeʢΩΞɾϘʔΠζɾ νϟϨϯδʣʯͱݺ͹Ε͍ͯΔ THIEVES #1 BACK
  11. TEXT BACK: TAKEAWAYS ▸ ॳΊkia, ͍࣍ͰRAV4 ▸ ख๏ͱରࡦͷڞਐԽʢi.e. Πλνͬ͜͝ʣ ▸

    ΠϞϏϥΠβʔͷଘࡏͱճආ ▸ Ωʔೝূϓϩτίϧ͸ສશͱ͸ݴ͑ͳ͍ ▸ ΋͸΍෺ཧతʹकΔ͔͠ͳ͍ Image by KaCey97078 on flickr, CC-BY-NC 2.0
  12. TEXT AUGEST - #15 ▸ ম͚ͭ͘໠ॵ ▸ ͍ͨ͞·ࢢ։࠵: RaiBoCϗʔϧ ूձࣨ

    ▸ OWASP Sendai খּ͞Μͷ͝ްҙʹΑΔ ॳͷϫʔΫγϣοϓ ▸ ։࠵໨લʹ๻͕COVID-19ͰٸᬎϦϞʔτʹ… →֤Ґ͝໎࿭Λ͓͔͚͠·ͨ͠ Image by Shawn Harquail on flickr, CC-BY-NC 2.0
  13. TEXT OCTOBER - #16 ▸ Ϗʔϧͷ݄ ▸ य़೔෦ࢢ։࠵; ;Ε͍͋Ωϡʔϒ6F ..

    ༧૝Ҏ্ͷѹഭײʹҎ߱͸4FͰͱܾҙͨ͠ճ ▸ ҉໧తͩͬͨεϐʔΧʔอޢϧʔϧΛ੔උ͠ɺ ʮνϟλϜϋ΢εϧʔϧʯΛద༻͢Δࢫ໌ه Image by 5chw4r7z on flickr, CC-BY-SA 2.0
  14. TEXT FRONT: ECHIDNA: PENETRATION TEST ASSIST & COLLABORATION TOOL ▸

    ։ൃऀͷࣉా༔ (@chayakonanaika) ͞Μ͔Β σϞ͓Αͼ಺෦ઃܭʹؔ͢Δوॏͳ࿩ ▸ BlackHat EU 2023 ArsenalͰൃද ▸ ߈ܸΛՄࢹԽɾνʔϜ಺Ͱڞ༗͠ॳ৺ऀͰ΋े ෼ͳ੒ՌΛग़ͤΔΑ͏ʹڧྗʹࢧԉ͢Δπʔϧ ▸ https://github.com/Echidna-Pentest/Echidna
  15. TEXT BACK: THREAT DRAGON ▸ OWASP SendaiνϟϓλʔϦʔμʔ খּو੖ (@TakaharuOgasa) ͞Μ͔Βɺ

    OWASP Threat Dragonͷ঺հͱϋϯζΦϯ ▸ OWASPެࣜͷڴҖϞσϦϯάπʔϧ ▸ ͜Ε΋·ͨେมʹوॏͳ࿩ ▸ https://owasp.org/www-project-threat-dragon/
  16. TEXT BACK: TAKEAWAYS ▸ ڴҖϞσϦϯά͸։ൃऀͷڭҭʹ༗༻ ▸ ։ൃલʹϦεΫΛચ͍ग़͢ʢWFͰ͸ॏཁʣ ▸ ਍அ΍৵ೖςετͷ୅ସͰ͸ͳ͍ ▸

    OWASP Threat Dragonͷར఺ ▸ DFDΛॻ͖ɺSTRIDEΛࢹ֮తʹදݱ ରࡦҰཡΛ࡞੒͠ɺͦΕΛอଘ ▸ ߏ੒ཁૉ͝ͱͷൃੜڴҖΧςΰϦΛߟྀ (!)
  17. TEXT FRONT: LOOK BACK 2023 ▸ ࠓ೥ͷ׆ಈͷ;Γ͔͑Γ ▸ KPT: Keep,

    Problem, Try Image by Abubakr Saeed on flickr, CC-BY 2.0
  18. TEXT PROBLEM ▸ ࠓҰͭͩͬͨ͜ͱ ▸ ׆ಈঢ়گ͕ݟ͑ʹ͍͘ ▸ ࿩୊ͷࠂ஌͕஗͍ ▸ ղੳܥͷ࿩୊Λ΋͏গ͠΍Εͨͳ

    ▸ Ր༵ͩͱళ͕ٳΜͰ͍Δέʔε͕ଟ͍… Image by Leonid Mamchemkov on flickr, CC-BY 2.0
  19. TEXT TRY ▸ ΍͍͖͍ͬͯͨ͜ͱ ▸ SNS΁ࣸਅΛೖΕͯ׆ಈใࠂ →୭͔ʂ ▸ εϐʔΧʔͷґཔ →ґཔ͕͍ͬͨΒΑΖ͓͘͠ئ͍͠·͢mm

    ▸ appsec, ಛʹΞϓϦղੳ ▸ ϫʔΫγϣοϓ͋Δ͍͸CTFྨʢ˞ձ৔͕໰୊ʣ ▸ ։࠵༵೔ͷ࠶ߟ Image by Heiner Engbrocks on flickr, CC-BY-NC 2.0