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"Gimme a bit!" - Exploring Attacks in the "Post...

Takashi Yoneuchi
May 16, 2019
Technology
9
5.8k

"Gimme a bit!" - Exploring Attacks in the "Post-XSS" World

Presented at: https://shibuyaxss.connpass.com/event/128168/

Takashi Yoneuchi

May 16, 2019
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Transcript

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    XIFOUIFQBHFJTTIPXOVTVBMMZ ‣ *G944"VEJUPSpMUFST  ‣ 1BHFTUSVDUVSFT FTQFDJBMMZUIFqPXPGBQQSPQSJBUF+4 FYFDVUJPOqPX DBOCFCSPLFO  ‣ &YBNQMF9944/JHIUNBSFNPEFBUUBDL944"UUBDLT &YQMPJUJOH944'JMUFS !NBTBUPLJOVHBXB 
 IUUQTXXXTMJEFTIBSFOFUNBTBUPLJOVHBXBYYOFO ‣ ':**OGPSNBUJPOUIFGUBUUBDLTBCVTJOHCSPXTFST944pMUFS
 IUUQTXXXNCTEKQCMPHIUNM  

  34. &YBNQMF
 5JNJOH*OGPSNBUJPO

  35. ˜TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 5JNJOH"UUBDL 8FC 
 "LJOEPGTJEFDIBOOFMBUUBDLT   ‣

    3FTFBSDI2VFTUJPO
 8IBUBUUBDLFSTDBOEPXJUIUJNJOHJOGPSNBUJPO  ‣ 'JSTU*EFB 'FMUFOBOE4DIOFJEFS   ‣ #SPXTFSTDBDIFIBTF⒎FDUTPOUIFMPBEJOHUJNFPGSFTPVSDFT ‣ $BDIFTBSFPGUFOBWBJMBCMFGPSSFTPVSDFTBDDFTTFESFDFOUMZ ‣ )FODF UIFMPBEJOHUJNFSFqFDUTCSPXTJOHIJTUPSZ ‣ 5IFSFBSFUXPWJFXQPJOUT ‣ $POOFDUJWJUZEJSFDUPSDSPTTTJUF ‣ 5BSHFU5JNJOHTFSWFSTJEFUJNJOHPSDMJFOUTJEFUJNJOH

  36. ˜TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC %JSFDU5JNJOH"UUBDL
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    $POEJUJPOT*OGPSNBUJPOUIBUBUUBDLFSTXBOUUPMFBLB⒎FDUTUP TJUFXJEFCFIBWJPS ‣ "UUBDLT ‣ )JEEFOCPPMFBOWBMVFTEBUBTJ[FDBOCFFTUJNBUFEXJUI NFBTVSJOHQSPDFTTJOHUJNF #PSU[BOE#POFI   ‣ 5PUIFCFTUPGNZLOPXMFEHF UIFZBSFUIFpSTUXIPEFTDSJCFEUIF DPODFQUPGEJSFDUUJNJOHBUUBDL ‣ &WFOSFNPUFUJNJOHBUUBDLT BQQSPQSJBUFTUBUJTUJDBMNFUIPET HJWFBUUBDLFSTBDDVSBUFBOBMZTJT $SPTCZFUBM   ‣ 5IFCPYUFTUUIFZQSFTFOUFEBSFPGUFOVTFEJOPUIFSSFTFBSDI

  37. ˜TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC $SPTTTJUF5JNJOH"UUBDL
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  38. ˜TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC $MJFOUTJEF5JNJOH  
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  39. ˜TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC $MJFOUTJEF5JNJOH  
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 IUUQTEMBDNPSHDJUBUJPODGN JE ‣ "CVTFPG1BJOU"1* %5SBOTGPSNT BOE47(T 4NJUIFUBM   
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  40. ˜TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC .PSF4PQIJTUJDBUFE0OFT
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  41. ˜TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 'SPN+44BOECPY
 4PGUXBSFCBTFENJDSPBSDIJUFDUVSBMBUUBDLT ‣ 3FTVMUT ‣ 5JNFSTBWBJMBCMFJO+BWB4DSJQUJTFOPVHIGPSBUUBDLFSTUP QFSGPSNNJDSPBSDIJUFDUVSBMBUUBDLT

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 1SBDUJDBM,FZTUSPLF5JNJOH"UUBDLTJO4BOECPYFE+BWB4DSJQUIUUQTMJOLTQSJOHFSDPNDIBQUFS @  ‣ +45FNQMBUF"UUBDLT 4DIXBS[FUBM  
 +BWB4DSJQU5FNQMBUF"UUBDLT"VUPNBUJDBMMZ*OGFSSJOH)PTU*OGPSNBUJPOGPS5BSHFUFE&YQMPJUTIUUQT XXXOETTTZNQPTJVNPSHXQDPOUFOUVQMPBETOETT@#@4DIXBS[@QBQFSQEG ‣ /05&4JUF*TPMBUJPOBOEEJTBCMJOH4IBSFE"SSBZ#V⒎FS DVSSFOUMZ NJUJHBUFUIPTFBUUBDLT  

  42. &⒎FDUT.JUJHBUJPO

  43. ˜TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC &⒎FDUTPG94-FBLT
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  44. ˜TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC .JUJHBUJPO
 8IBUDBOXFEPGPSUIPTFBUUBDLT ‣ "MPUPGTFDVSJUZIFBEFSTBUUSJCVUFT ‣ 4BNFTJUF$PPLJF ‣

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  45. ˜TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 4BNFTJUF$PPLJF
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    ‣ #Z4BNF4JUFBUUSJCVUFTPGDPPLJF TJUFPXOFSTDBOQSPIJCJUT CSPXTFSTGSPNTFOEJOHDSPTTTJUFSFRVFTUTXJUIDPPLJFT ‣ 4BNF4JUF-BY0OMZUPQMFWFMOBWJHBUJPOTJTBMMPXFE ‣ 4BNF4JUF4USJDU/PDSPTTTJUFSFRVFTUXJUIDPPLJFTJTBMMPXFE ‣ 4FF4BNF4JUFDPPLJFTFYQMBJOFE
 IUUQTXFCEFWTBNFTJUFDPPLJFTFYQMBJOFE  

  46. ˜TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 'SBNJOH3FTUSJDUJPO
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 3FBM8PSME&YBNQMFTPGUFOSFMJFTPOXJOEPXMFOHUI


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  47. ˜TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC $SPTT0SJHJO0QFOFS1PMJDZ
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 IUUQTHJTUHJUIVCDPNBOOFWLGEEDDGGCEBDGF  

  48. ˜TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC $SPTT0SJHJO3FTPVSDF1PMJDZ
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  49. ˜TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 'FUDI.FUBEBUB
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  50. 5IBOLZPVGPS-JTUFOJOH  !MNU@TXBMMPX !ZOVDIZ IUUQTTIJGUKTJOGP