Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
"Gimme a bit!" - Exploring Attacks in the "Post...
Search
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
Tweet
Share
More Decks by Takashi Yoneuchi
See All by Takashi Yoneuchi
プロダクトセキュリティの「共通言語」を作る ― 技術教育と Policy as Code を例に / "Language" for Product Security
lmt_swallow
0
660
SREを以てセキュリティエンジニアリングを制す / SRE, Security Engineering, and You
lmt_swallow
5
2.7k
Eliminating ReDoS with Ruby 3.2
lmt_swallow
0
210
ソフトウェアサプライチェーンのこれから / Securing Software Supply Chain
lmt_swallow
1
210
AWSのセキュリティ管理をPolicy as Codeで加速する ― 最高のCSPM体験を目指して / Unleashing Policy as Code on AWS CSPM
lmt_swallow
3
2.1k
実践 SpiceDB - クライドネイティブ時代をサバイブできるパーミッション管理の実装を目指して / Practical SpiceDB
lmt_swallow
0
1.6k
Developer-First Security という考え方 / Introduction to Developer-First Security
lmt_swallow
6
9.1k
ちいさな Web ブラウザを作ってみよう（オンライン講義版） / Build Your Own Web Browser
lmt_swallow
18
11k
Go をセキュアに書き進めるための 「ガードレール」を整備しよう / Let's Build Security Guardrails For Your Go Programs!
lmt_swallow
4
5.4k
Other Decks in Technology
See All in Technology
安心してください、日本語使えますよ―Ubuntu日本語Remix提供休止に寄せて― 2024-11-17
nobutomurata
0
980
【Pycon mini 東海 2024】Google Colaboratoryで試すVLM
kazuhitotakahashi
2
480
適材適所の技術選定 〜GraphQL・REST API・tRPC〜 / Optimal Technology Selection
kakehashi
1
150
個人でもIAM Identity Centerを使おう!(アクセス管理編)
ryder472
3
170
サイバーセキュリティと認知バイアス：対策の隙を埋める心理学的アプローチ
shumei_ito
0
380
BLADE: An Attempt to Automate Penetration Testing Using Autonomous AI Agents
bbrbbq
0
280
Amazon CloudWatch Network Monitor のススメ
yuki_ink
1
200
New Relicを活用したSREの最初のステップ / NRUG OKINAWA VOL.3
isaoshimizu
2
570
CysharpのOSS群から見るModern C#の現在地
neuecc
1
3k
iOS/Androidで同じUI体験をネ イティブで作成する際に気をつ けたい落とし穴
fumiyasac0921
1
110
B2B SaaS × AI機能開発 〜テナント分離のパターン解説〜 / B2B SaaS x AI function development - Explanation of tenant separation pattern
oztick139
2
220
スクラム成熟度セルフチェックツールを作って得た学びとその活用法
coincheck_recruit
1
140
Featured
See All Featured
The Cult of Friendly URLs
andyhume
78
6k
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
eileencodes
131
33k
What’s in a name? Adding method to the madness
productmarketing
PRO
22
3.1k
Building a Modern Day E-commerce SEO Strategy
aleyda
38
6.9k
ピンチをチャンスに：未来をつくるプロダクトロードマップ #pmconf2020
aki_iinuma
109
49k
Fantastic passwords and where to find them - at NoRuKo
philnash
50
2.9k
Practical Orchestrator
shlominoach
186
10k
Java REST API Framework Comparison - PWX 2021
mraible
PRO
28
8.2k
The Art of Programming - Codeland 2020
erikaheidi
52
13k
Dealing with People You Can't Stand - Big Design 2015
cassininazir
364
24k
The Power of CSS Pseudo Elements
geoffreycrofte
73
5.3k
Responsive Adventures: Dirty Tricks From The Dark Corners of Front-End
smashingmag
250
21k
Transcript
(JNNFBCJU &YQMPSJOH"UUBDLTJOUIF1PTU9448PSME 5BLBTIJ:POFVDIJ !MNU@TXBMMPX %FQBSUNFOUPG*OGPSNBUJPO4DJFODF 'BDVMUZPG4DJFODF UIF6OJWFSTJUZPG5PLZP IUUQTTIJGUKTJOGP
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 5BLBTIJ:POFVDIJ ‣ !MNU@TXBMMPX !ZOVDIZ ‣ %FQBSUNFOUPG*OGPSNBUJPO4DJFODF 'BDVMUZ
PG4DJFODF UIF6OJWFSTJUZPG5PLZP ‣ *ὑ8FC ‣ 4&$$0/#FHJOOFSTDUGC ‣ 4FDVSJUZ$BNQTFDDBNQ ‣ 54(EPEPEPEP ‣ 4FFIUUQTTIJGUKTJOGP
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 0VUMJOF ‣ 1PTU9448PSME ‣ 2VFTUJPO8IBUDPNFTBGUFS944
‣ *OUSPEVDUJPOUP94-FBLTBOE944FBSDI ‣ 0WFSWJFX ‣ &YBNQMFT ‣ 'SBNF$PVOU ‣ 5JNJOH*OGPSNBUJPO ‣ &⒎FDUT.JUJHBUJPO ‣ $PODMVTJPO
1PTU9448PSME
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 944 3PBENBQUP1PTU9448PSME .JUJHBUJPO 944FBSDI 94-FBL
4DSJQUMFTT "UUBDL 4DSJQU (BEHFUT
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC $SPTT4JUF4DSJQUJOH 944 BDPNNPOqBXJO8FCBQQMJDBUJPOT ‣ .BOZEFWFMPQFSTBOESFTFBSDIFSTIBWFTUSVHHMFEXJUI944
‣ .PEFSO8FCGSBNFXPSLTQSPWJEFQSFWFOUJPO ‣ "VUPNBUJDFTDBQJOH ‣ 'PPMQSPPG FHEBOHFSPVTMZ4FU*OOFS)5.- ‣ 8FCCSPXTFSTBMTPIBWFEFGFOTFMJOFT ‣ $POUFOU4FDVSJUZ1PMJDZ $41 ‣ 944"VEJUPS <?= $_GET['q'] ?>
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 944 .JUJHBUJPO 944FBSDI 94-FBL 4DSJQUMFTT
"UUBDL 4DSJQU (BEHFUT 3PBENBQUP1PTU9448PSME
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC $POUFOU4FDVSJUZ1PMJDZ &YBNQMFTPG$MJFOUTJEF.JUJHBUJPOPG944 ‣ $POUFOU4FDVSJUZ1PMJDZ $41 ‣
4QFDJpDBUJPOIUUQTXXXXPSH53$41JOUSP ‣ *USFEVDFTUIFIBSNDBVTFECZDPOUFOUJOKFDUJPOBUUBDLT ‣ "QQSPQSJBUFQPMJDJFTSFRVJSFBUUBDLFSTUPNBLFBCVODIPG F⒎PSUTUPFYFDVUF+4TVDDFTTGVMMZ Content-Security-Policy: script-src 'nonce-4g34...34r' <script nonce="4g34...34r">alert('Hello, CSP!')</script>
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 944"VEJUPS &YBNQMFTPG$MJFOUTJEF.JUJHBUJPOPG944 ‣ 99441SPUFDUJPOIFBEFS EFpOFTUIFBDUJPOXIFO 3FqFDUFE 944JTGPVOE
‣ 5IFSFBSFUXPNPEFT ‣ pMUFS ‣ CMPDL ‣ 3FTFBSDIFSTIBWFUBDLMFEXJUI CZQBTTJOHPG944"VEJUPS
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 944 .JUJHBUJPO 944FBSDI 94-FBL 4DSJQUMFTT
"UUBDL 4DSJQU (BEHFUT 3PBENBQUP1PTU9448PSME
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC &WPMVUJPOPG944 4DSJQU(BEHFUT$PEFSFVTJOHTJNJMBSUP301 ‣ &OUIVTJBTUTPG944IBWFUSJFEUPCZQBTT$41 ‣ 0OFPG4PMVUJPOT4DSJQU(BEHFUT -FLJFTFUBM
‣ *EFBSFVTFUSVTUFE MFHJUJNBUF TPVSDFDPEFTUPFYFDVUF BSCJUSBSZTDSJQUT DGSFUVSOPSJFOUFEQSPHSBNNJOH 301 <script src="https://ajax.googleapis.com/ajax/libs/ angularjs/1.0.8/angular.js"></script> <div ng-app ng-csp ng-mouseover=$event.view.alert('XSS')>
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 4DSJQUMFTT"UUBDLT /PUPOMZ+4 CVUBMTP$44IFMQTBUUBDLFST ‣ 3FTFBSDI2VFTUJPO *G+4FYFDVUJPOJTSFTUSJDUFE XIBUDBOBUUBDLFSTEP
‣ 0OFPG"OTXFST4DSJQUMFTT"UUBDLT )FJEFSJDIFUBM ‣ #BDLJOIJTUPSZ UIJTDMBTTPGBUUBDLTIBTCFFOJOWFTUJHBUFECZ SFTFBSDIFST BOEXBTPGUFOSFEJTDPWFSFE ‣ 8FMMLOPXO"UUSJCVUFSFBEJOH 'POUMJHBUVSFUFDIOJRVF GPOU SBOHFUFDIOJRVF FUD ‣ /FXSFTFBSDIMJOFJNQPSUSFDVSTJPOUFDIOJRVFT 1FQF7JMB IUUQTWX[ROFUTMJEFTT@DTT@JOKFDUJPO@BUUBDLTQEG
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 94-FBLT944FBSDI "UUBDLTBJNJOHUIFQPTU944XPSME ‣ 3FTFBSDI2VFTUJPO *TUIFSFZFUBOPUIFSBUUBDLJOHUFDIOJRVFXIFOBEWFSTBSJFT IBWFOPDPOUFOUJOKFDUJPOWVMOFSBCJMJUJFTJOUBSHFUT
‣ "OTXFS:FT ‣ *EFBEBUBUPXIJDIDSPTTPSJHJOBDDFTTJTHSBOUFEIFMQTPOF FTUJNBUFUIFGFBUVSFT DIBSBDUFSJTUJDT PGB)551SFTQPOTF ‣ &YBNQMF FYQMBJOFEMBUFS ‣ $SPTTTJUF-FBLT 94-FBLT ‣ $SPTTTJUF4FBSDI 944FBSDI
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC #"%/0/$& 54($5' "EEJUJPOBM/PUFT <?php session_start();
$nonce = md5(session_id()); $_SESSION['count'] = isset($_SESSION['count']) ? $_SESSION['count'] + 1 : 0; if ($_SESSION['count'] > 3){ setcookie('flag', null, -1, '/'); } ?> <head><meta http-equiv="Content-Security-Policy" content="script-src 'nonce-<?= $nonce ?>';"></head> <body><script nonce=<?= $nonce ?>>/* ... */</script> <?= $_GET['q'] ?> </body> UIFOPODFJTpYFE :PVIBWFUPMFBLDPPLJFT XJUIPOMZUXPSFR
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC /PUFT 1PTU9448PSME ‣ *O .JDIBFM;BMFXTLJ !MDBNUVG OPUFEUIBUUIF
DPMMFDUJPOPGBUUBDLTBMUFSOBUJWFUP944IFQSPWJEFEIBWF BMNPTUTBNFDBQBCJMJUJFTBT944 1PTUDBSETGSPNUIFQPTU944XPSMEIUUQMDBNUVGDPSFEVNQDYQPTUYTT ‣ FH3FSPVUJOHPGFYJTUJOHGPSNT ‣ FHIJKBDLSFMBUJWF63-TXJUI CBTF ‣ DG3FMBUJWF1BUI0WFSXSJUF ‣ 4FF"STIBE GPSUIFSFBMBOBMZTJT-BSHFTDBMFBOBMZTJTPG TUZMFJOKFDUJPOCZSFMBUJWFQBUIPWFSXSJUF IUUQTEMBDNPSHDJUBUJPODGN JE
*OUSPEVDUJPOUP 94-FBLTBOE944FBSDI
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC $SPTTTJUF-FBLT BLB94-FBLT ‣ $SPTTTJUFMFBLT 94-FBL BSFBGBNJMZPGCSPXTFSTJEF DIBOOFMUFDIOJRVFT
‣ 94-FBLBUUBDLTBJNUPDJSDVNWFOUTFDVSJUZDPOUSPMTJO8FC CSPXTFSTCZUXPTUFQT ‣ 3FRVFTUJOH ‣ FHFNCFEEJOHBDSPTTTJUFDPOUFOU FH JGSBNF ‣ 0CTFSWJOHCSPXTFSTJEFDIBOOFMT ‣ FHBCVTJOHGFBUVSFTPG8FCCSPXTFST FH944"VEJUPS ‣ 0OFPGUIFVTBHFT$SPTTTJUF4FBSDI 944FBSDI
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC $SPTTTJUF4FBSDI BLB944FBSDI ‣ $SPTTTJUFTFBSDI 944FBSDI
BUUBDLJTBLJOEPGBUUBDLT XIJDIBTLTTPNFRVFTUJPOTWJDUJNGSPNBVTFSTCSPXTFSUP B8FCFOEQPJOU ‣ FH*TUIFSFBFNBJMXIJDIDPOUBJOTUIFXPSEBQQMFJOUIF CPEZ GPSBOFNBJMTFSWJDF ‣ FH*OUIFSFBQMBOUPHPTPNFXIFSFUIJTXFFLFOE GPSB DBMFOEBSTFSWJDF ‣ 5IFBOTXFSPGUIFTFSWFSXJMMCFPCUBJOFECZVTJOH94 -FBLT FHSFTQPOTFTJ[FFTUJNBUJPO FUD
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 0VUMJOF944FBSDI /05&)FSFJTTBNFOPUBUJPOBT(FMFSOUFS VTFE %VNNZ3FRVFTU 3FTQPOTF
$IBMMFOHF3FRVFTU 3FTQPOTF 7JDUJN 4FSWJDF 7JDUJN 6TFS "UUBDLFS *OJUJBUF $PMMFDU 3FTVMUT
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 0VUMJOF944FBSDI /05&)FSFJTTBNFOPUBUJPOBT(FMFSOUFS VTFE %VNNZ3FRVFTU 3FTQPOTF
$IBMMFOHF3FRVFTU 3FTQPOTF 7JDUJN 4FSWJDF 7JDUJN 6TFS "UUBDLFS *OJUJBUF $PMMFDU 3FTVMUT "OBUUBDLFSMVSFTBVTFSUPB QBHFUIBUJOJUJBUFTSFRVFTUT UPBTFSWJDF
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 0VUMJOF944FBSDI /05&)FSFJTTBNFOPUBUJPOBT(FMFSOUFS VTFE %VNNZ3FRVFTU 3FTQPOTF
$IBMMFOHF3FRVFTU 3FTQPOTF 7JDUJN 4FSWJDF 7JDUJN 6TFS "UUBDLFS *OJUJBUF $PMMFDU 3FTVMUT /FYU "OBEWFSTBSZJOJUJBUFT EVNNZSFRVFTUTXIPTF SFTQPOTFTBSFLOPXOJOBEWBODF &YBNQMFBSFRVFTUXJUIBTFBSDI RVFSZXIPTFSFTVMUDBOOPUFYJTU
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 0VUMJOF944FBSDI /05&)FSFJTTBNFOPUBUJPOBT(FMFSOUFS VTFE %VNNZ3FRVFTU 3FTQPOTF
$IBMMFOHF3FRVFTU 3FTQPOTF 7JDUJN 4FSWJDF 7JDUJN 6TFS "UUBDLFS *OJUJBUF $PMMFDU 3FTVMUT "GUFSSFRVFTUJOHEVNNJFT BOBEWFSTBSZTUBSUTUP JOJUJBUFSFRVFTUTXJUI BDUVBMTFBSDIRVFSJFT %J⒎CFUXFFOEBUB FYQPTFECZ94-FBLGPS EVNNJFTBOEPOFGPS DIBMMFOHFTDPSSFTQPOETUIF EJ⒎CFUXFFOSFTQPOTFT
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 0VUMJOF944FBSDI /05&)FSFJTTBNFOPUBUJPOBT(FMFSOUFS VTFE %VNNZ3FRVFTU 3FTQPOTF
$IBMMFOHF3FRVFTU 3FTQPOTF 7JDUJN 4FSWJDF 7JDUJN 6TFS "UUBDLFS *OJUJBUF $PMMFDU 3FTVMUT "OBEWFSTBSZSFQFBUTUIF QSPDFTTBOE
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 0VUMJOF944FBSDI /05&)FSFJTTBNFOPUBUJPOBT(FMFSOUFS VTFE %VNNZ3FRVFTU 3FTQPOTF
$IBMMFOHF3FRVFTU 3FTQPOTF 7JDUJN 4FSWJDF 7JDUJN 6TFS "UUBDLFS *OJUJBUF $PMMFDU 3FTVMUT "OBEWFSTBSZTFOETUIF DPMMFDUFESFTVMUTGSPN WJDUJNTCSPXTFSTUPJUT PXOTFSWFS
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 6NN JTJUSFBMJTUJD 8IBU94-FBLT944FBSDIHJWFTVT ‣
6OMJLF944 94-FBLT944FBSDI ‣ EPFTOPUQSPWJEFBDUVBMDPOUFOUTPGEBUB ‣ EVFUP4BNF0SJHJO1PMJDZ ‣ EPQSPWJEFGFBUVSFT DIBSBDUFSJTUJDT PGEBUB ‣ FH8IFUIFSUIFEBUBDPOUBJOTBTQFDJpDWBMVFPSOPU ‣ 3FTQPOTFTXJUITFBSDISFTVMUTIBWFMPOHFSMFOHUIUIBOPOFXJUI OPSFTVMUT ‣ FH8IFUIFSUIFEBUBIBTDPNQMFYJUZPSOPU ‣ $PNQMFYJUZPGUFOSFTVMUTJOMPOHFSQSPDFTTJOHUJNF
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC )JTUPSZ94-FBLT /PXBEBZT BCVODIPG1P$TBSFCFDPNJOHBWBJMBCMFJOPOMJOF )551$BDIF$SPTT4JUF-FBLT IUUQTJSEBSDLDBUCMPHTQPUDPNIUUQDBDIFDSPTTTJUFMFBLTIUNM
$SPTT4JUF$POUFOUBOE4UBUVT5ZQFT-FBLBHF IUUQTNFEJVNDPNCVHCPVOUZXSJUFVQDSPTTTJUFDPOUFOUBOETUBUVTUZQFTMFBLBHFFGEBCB &WBOTQSFTFOUFEUIFQSJNJUJWFGPSNPG944FBSDIXJUI JNH MPBEUJNJOH &WBOT $SPTTEPNBJOTFBSDIUJNJOH IUUQTTDBSZCFBTUTFDVSJUZCMPHTQPUDPNDSPTTEPNBJOTFBSDIUJNJOHIUNM (FMFSOUFSFUBMHBWFUIFTPQIJTUJDBUFEBUUBDLTGPSTJUFTXJUI TFBSDIFOHJOFTOBNFE944FBSDI (FMFSOUFSFUBM
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC /PUFT 94-FBLT944FBSDI ‣ 94-FBLTIBWFBUUSBDUFEBUUFOUJPO CVUOPUFOPVHI ‣ #PUIBDDVSBDZBOEF⒎FDUJWFOFTTIBWFCFFOJNQSPWFE
‣ 3FGFSFODFT ‣ /PUFYTMFBLTYTMFBLTIBTBDPNQSFIFOTJWFTVSWFZQBHF IUUQTHJUIVCDPNYTMFBLTYTMFBLTXJLJ-JOLT ‣ ':*/FX94-FBLUFDIOJRVFTSFWFBMGSFTIXBZTUPFYQPTFVTFS JOGPSNBUJPOCZ1PSU4XJHHFS IUUQTQPSUTXJHHFSOFUEBJMZTXJHOFXYTMFBLUFDIOJRVFTSFWFBMGSFTIXBZTUPFYQPTFVTFSJOGPSNBUJPO ‣ ':*94-FBLTBOE944FBSDICZ(PPHMF IUUQTTJUFTHPPHMFDPNTJUFCVHIVOUFSVOJWFSTJUZOPOWVMOYTMFBLT
&YBNQMF 'SBNF$PVOU
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC XJOEPXMFOHUI "VTFGVMQSPQFSUZGPSDSPTTPSJHJOBUUBDLFST ‣ XJOEPXMFOHUI XJOEPXGSBNFTMFOHUI SFUVSOTUIF OVNCFSPGGSBNFTJOUIFXJOEPX
2VPUFEIUUQTEFWFMPQFSNP[JMMBPSHFO64EPDT8FC"1* 8JOEPXMFOHUI ‣ $SPTTPSJHJOBDDFTTUP XJOEPXMFOHUIJTBMMPXFEVOEFS TBNFPSJHJOQPMJDZ 401 4FFIUUQTEFWFMPQFSNP[JMMBPSHFO64EPDT8FC4FDVSJUZ4BNF PSJHJO@QPMJDZ ‣ $BOUIJTQSPQFSUZCFVUJMJ[FEGPS TPNFLJOETPGBUUBDLT
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 944"VEJUPS "HPPEGSJFOEGPS944NBOJB ‣ 944"VEJUPS ‣ 99441SPUFDUJPOIFBEFS EFpOFTUIFBDUJPOXIFO
3FqFDUFE 944JTGPVOE ‣ 5IFSFBSFUXPNPEFT pMUFSCMPDL ‣ 3FTFBSDIFSTIBWFUBDLMFEXJUI CZQBTTJOHPG944"VEJUPS
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 944"VEJUPS XJOEPXMFOHUI ‣ 8IFOUIFSFJTTQFDJpDDPOUFOUUIBUDBOXBLF944"VEJUPSJO BQBHFBOEUIFQBHFIBT BUMFBTUPOF JGSBNF
‣ 8IFO944"VEJUPSCMPDLT XJOEPXMFOHUI ‣ 8IFOOPU XJOEPXMFOHUI ‣ 8FDBOHFUBCJU XIFUIFSUIFTQFDJpDDPOUFOUJT JODMVEFEPSOPUCZUIFQBHFBTMPOHBTUIFDPOUFOUDBO XBLF944"VEJUPS:BZ <iframe src="..."></iframe> <script>let secret_flag = true;</script>
%&.054($5' 3&$0/ /05&.PSFTJNQMZ XFDBOEFUFDUUIFXBLFPG944"VEJUPSCZPCTFSWJOHIPX NBOZUJNFTJGSBNFTPOMPBEFWFOUPDDVST &YBNQMFD$5'pMFNBOBHFS IUUQTHJTUHJUIVCDPNMXJPBFBBFBBDEBDEDBE
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 4JEF&⒎FDUTPG#MPDLJOH 8IBU944"VEJUPSDBVTFT ‣ *G944"VEJUPSCMPDLT ‣ TPNFQSPQFSUJFTNBZTFFNTUPCFEJ⒎FSFOUGSPNUIFWBMVFT
XIFOUIFQBHFJTTIPXOVTVBMMZ ‣ *G944"VEJUPSpMUFST ‣ 1BHFTUSVDUVSFT FTQFDJBMMZUIFqPXPGBQQSPQSJBUF+4 FYFDVUJPOqPX DBOCFCSPLFO ‣ &YBNQMF9944/JHIUNBSF NPEF BUUBDL944"UUBDLT &YQMPJUJOH944'JMUFS !NBTBUPLJOVHBXB IUUQTXXXTMJEFTIBSFOFUNBTBUPLJOVHBXBYYOFO ‣ ':**OGPSNBUJPOUIFGUBUUBDLTBCVTJOHCSPXTFST944pMUFS IUUQTXXXNCTEKQCMPHIUNM
&YBNQMF 5JNJOH*OGPSNBUJPO
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 5JNJOH"UUBDL 8FC "LJOEPGTJEFDIBOOFMBUUBDLT ‣
3FTFBSDI2VFTUJPO 8IBUBUUBDLFSTDBOEPXJUIUJNJOHJOGPSNBUJPO ‣ 'JSTU*EFB 'FMUFOBOE4DIOFJEFS ‣ #SPXTFSTDBDIFIBTF⒎FDUTPOUIFMPBEJOHUJNFPGSFTPVSDFT ‣ $BDIFTBSFPGUFOBWBJMBCMFGPSSFTPVSDFTBDDFTTFESFDFOUMZ ‣ )FODF UIFMPBEJOHUJNFSFqFDUTCSPXTJOHIJTUPSZ ‣ 5IFSFBSFUXPWJFXQPJOUT ‣ $POOFDUJWJUZEJSFDUPSDSPTTTJUF ‣ 5BSHFU5JNJOHTFSWFSTJEFUJNJOHPSDMJFOUTJEFUJNJOH
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC %JSFDU5JNJOH"UUBDL #PSU[BOE#POFI $SPTCZFUBM ‣
$POEJUJPOT*OGPSNBUJPOUIBUBUUBDLFSTXBOUUPMFBLB⒎FDUTUP TJUFXJEFCFIBWJPS ‣ "UUBDLT ‣ )JEEFOCPPMFBOWBMVFTEBUBTJ[FDBOCFFTUJNBUFEXJUI NFBTVSJOHQSPDFTTJOHUJNF #PSU[BOE#POFI ‣ 5PUIFCFTUPGNZLOPXMFEHF UIFZBSFUIFpSTUXIPEFTDSJCFEUIF DPODFQUPGEJSFDUUJNJOHBUUBDL ‣ &WFOSFNPUFUJNJOHBUUBDLT BQQSPQSJBUFTUBUJTUJDBMNFUIPET HJWFBUUBDLFSTBDDVSBUFBOBMZTJT $SPTCZFUBM ‣ 5IFCPYUFTUUIFZQSFTFOUFEBSFPGUFOVTFEJOPUIFSSFTFBSDI
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC $SPTTTJUF5JNJOH"UUBDL #PSU[BOE#POFI ‣ "UUBDLT
‣ 8JUITFSWFSTJEFUJNJOH ‣ *OJUJBMDPODFQUPG944FBSDIJTCBTFEPOTFSWFSTJEFUJNJOH ‣ &WBOT NFOUJPOFECFGPSF ‣ (FMFSOUFSFUBM NFOUJPOFECFGPSF ‣ 8JUIDMJFOUTJEFUJNJOH ‣ BMTPLOPXOBTCSPXTFSCBTFEUJNJOHBUUBDLT ‣ &YBNQMFT ‣ $BDIF'FMUFOBOE4DIOFJEFS 7BO(PFUIFNFUBM ‣ $444UPOF ,PUDIFSFUBM 4NJUIFUBM FUD
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC $MJFOUTJEF5JNJOH BLB#SPXTFSCBTFE5JNJOH"UUBDL ‣
*EFB ‣ $BDIFTIBWFF⒎FDUTPOQSPDFTTJOHUJNF ‣ "UUBDLT ‣ 5IFpSTUDPODFQUPGUJNJOHBUUBDLJOUIF8FCEFSJWFTGSPN DBDIFCBTFEBUUBDLT 'FMUFOBOE4DIOFJEFS ‣ 'FBUVSFTJOUSPEVDFEPONPEFSOCSPXTFSTDBOCFOFXTJEF DIBOOFMTUIBUMFUBEWFSTBSJFTNFBTVSFNPSFBDDVSBUFUJNJOH 7BO(PFUIFNFUBM ‣ FH$BDIF"1* PG4FSWJDF8PSLFS ‣ FH"QQMJDBUJPO$BDIF
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC $MJFOUTJEF5JNJOH BLB#SPXTFSCBTFE5JNJOH"UUBDL ‣
*EFB ‣ 3FOEFSJOHIBTBUJHIUSFMBUJPOXJUIBDPOUFOUUPCFSFOEFSFE ‣ &WFOEBUBXIJDIDBOOPUCFUPVDIFEGSPN+4DBOCFSFOEFSFE ‣ "UUBDLT ‣ 1JYFMQFSGFDUUJNJOHBUUBDLT 4UPOF IUUQTXXXDPOUFYUJTDPNNFEJBEPXOMPBET1JYFM@1FSGFDU@5JNJOH@"UUBDLT@XJUI@)5.-@8IJUFQBQFSQEG ‣ 1JYFMTUFBMJOHUJNJOHBUUBDLT ,PUDIFSFUBM IUUQTEMBDNPSHDJUBUJPODGN JE ‣ "CVTFPG1BJOU"1* %5SBOTGPSNT BOE47(T 4NJUIFUBM IUUQTXXXVTFOJYPSHDPOGFSFODFXPPUQSFTFOUBUJPOTNJUI
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC .PSF4PQIJTUJDBUFE0OFT 1PTTJCMFBUUBDLTXBUDIJOHZPVSFOWJSPONFOUT ‣ 4PGUXBSFCBTFENJDSPBSDIJUFDUVSBMBUUBDLT ‣ 4PGUXBSFCBTFENJDSPBSDIJUFDUVSBMTJEFDIBOOFMBUUBDLT FYQMPJUUJNJOHBOECFIBWJPSEJ⒎FSFODFTUIBUBSF
QBSUJBMMZ DBVTFEUISPVHINJDSPBSDIJUFDUVSBM PQUJNJ[BUJPOT JF EJ⒎FSFODFTUIBUBSFOPUBSDIJUFDUVSBMMZ EPDVNFOUFE 4PGUXBSFCBTFE.JDSPBSDIJUFDUVSBM"UUBDLTIUUQTBSYJWPSHBCT ‣ 3FTFBSDI2VFTUJPOT+BWB4DSJQU XIJDIJTFYFDVUFEJOUIF TBOECPY JTFOPVHIUPCFVTFEGPSNJDSPBSDIJUFDUVSBM BUUBDLT
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 'SPN+44BOECPY 4PGUXBSFCBTFENJDSPBSDIJUFDUVSBMBUUBDLT ‣ 3FTVMUT ‣ 5JNFSTBWBJMBCMFJO+BWB4DSJQUJTFOPVHIGPSBUUBDLFSTUP QFSGPSNNJDSPBSDIJUFDUVSBMBUUBDLT
4DIXBS[FM 'BOUBTUJD5JNFSTBOE8IFSFUP'JOE5IFN)JHI3FTPMVUJPO.JDSPBSDIJUFDUVSBM"UUBDLTJO+BWB4DSJQU IUUQTHSVTTDDpMFTGBOUBTUJDUJNFSTQEG ‣ 5IFZEFNPOTUSBUFEBOFX%3".CBTFEDPWFSUDIBOOFMXJUI+4 ‣ ,FZTUSPLFUJNJOHBUUBDLTJOTBOECPYFE+4 -JQQFUBM 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
&⒎FDUT.JUJHBUJPO
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC &⒎FDUTPG94-FBLT 94MFBLTQSPWJEFBQBSUPGJOGPSNBUJPO OPUUIFXIPMF ‣ &WFOTFDVSF8FCTJUFTIBWFBQPUFOUJBMUPCFUBSHFUFE
‣ &WFOJG)551IFBEFSTBSFTFUTFDVSFMZ ‣ FH3FRVFTUBOE$PORVFS&YQPTJOH$SPTT0SJHJO3FTPVSDF4J[F IUUQTUPNWHQBQFSTSFRVFTU@BOE@DPORVFS@VTFOJYQEG ‣ DG6944 ‣ *UOFFETBMPUPGF⒎PSUTUPNJUJHBUFDPNQMFUFMZ ‣ )BWFZPVFWFSCFFOUIPVHIUBCPVUEBUBMFBLBHFGSPNUJNJOH JOGPSNBUJPO ‣ /FXQPMJDJFTUPNJUJHBUFUIFNIBWFCFFOEJTDVTTFE CVU
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC .JUJHBUJPO 8IBUDBOXFEPGPSUIPTFBUUBDLT ‣ "MPUPGTFDVSJUZIFBEFSTBUUSJCVUFT ‣ 4BNFTJUF$PPLJF ‣
9'SBNF0QUJPOT GSBNFBODFTUPST PG$41 ‣ $SPTT0SJHJO0QFOFS1PMJDZ $001 ‣ $SPTT0SJHJO3FTPVSDF1PMJDZ $031 ‣ $SPTT0SJHJO3FTPVSDF#MPDLJOH $03# ‣ 'FUDI.FUBEBUB ‣ 4PNFPGUIFNIBWFCFFOTUJMMEJTDVTTFE ‣ ,FFQXBUDIJOHXDXFCBQQTFD JO(JU)VC
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 4BNFTJUF$PPLJF 3FTUSJDUJPOPGDPPLJFTVTBHFBUDSPTTTJUFSFRVFTUJOH ‣ 1SPCMFN$SPTTPSJHJOSFRVFTUTXJUIDPPLJFTPGUFODBVTFUIF TFDVSJUZJTTVFTTVDIBT$43' ‣ 4PMVUJPO4BNFTJUF$PPLJF
‣ #Z4BNF4JUFBUUSJCVUFTPGDPPLJF TJUFPXOFSTDBOQSPIJCJUT CSPXTFSTGSPNTFOEJOHDSPTTTJUFSFRVFTUTXJUIDPPLJFT ‣ 4BNF4JUF -BY0OMZUPQMFWFMOBWJHBUJPOTJTBMMPXFE ‣ 4BNF4JUF 4USJDU/PDSPTTTJUFSFRVFTUXJUIDPPLJFTJTBMMPXFE ‣ 4FF4BNF4JUFDPPLJFTFYQMBJOFE IUUQTXFCEFWTBNFTJUFDPPLJFTFYQMBJOFE
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 'SBNJOH3FTUSJDUJPO 9'SBNF0QUJPOT GSBNFBODFTUPST PG$41 ‣ (FOFSBM1SPCMFN 3FBM8PSME&YBNQMFTPGUFOSFMJFTPOXJOEPXMFOHUI
IUUQTHJUIVCDPNYTMFBLTYTMFBLTXJLJ3FBM8PSME&YBNQMFT ‣ $BTFXIFOBQBHFJTGSBNFE CPUIPGUIFQBHF DIJME BOE JUTQBSFOUIBWFSFGFSFODFTUPAXJOEPXAUPFBDIPUIFS ‣ GSPNDIJMEUPQBSFOUXJOEPXQBSFOUPSXJOEPXUPQ ‣ GSPNQBSFOUUPDIJME GSBNF@FMNFOU DPOUFOU8JOEPX ‣ 4PMVUJPOT9'SBNF0QUJPOT GSBNFBODFTUPST PG$41 ‣ 3FTUSJDUJOHDSPTTTJUFGSBNJOHSFEVDFTBUUBDLTVSGBDFT
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC $SPTT0SJHJO0QFOFS1PMJDZ 3FTUSJDUJPOPGVTJOHAXJOEPXASFGFSFODFGSPNPQFOFST ‣ $BTFXIFOXJOEPXPQFOJTFYFDVUFE UIFPQFOFEXJOEPX DBOBDDFTTUPAXJOEPXAPGJUTPQFOFS ‣
XJOEPXPQFOFSMPDBUJPO IUUQFWJMDPN ‣ 4PMVUJPO$SPTT0SJHJO0QFOFS1PMJDZ $001 ‣ $SPTT0SJHJO0QFOFS1PMJDZIFBEFSEFpOFTXIFO AXJOEPXPQFOFSAJTBWBJMBCMF ‣ 4FFBOOFWLDPPQNE BTFNJGPSNBMEFpOJUPOPG$001 IUUQTHJTUHJUIVCDPNBOOFWLGEEDDGGCEBDGF
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC $SPTT0SJHJO3FTPVSDF1PMJDZ 3FTUSJDUJPOPGUIFBWBJMBCMFPSJHJOPGSFTPVSDFT ‣ 1SPCMFN$SPTTPSJHJOOPDPSTSFRVFTUTDBVTFTFDVSJUZ JTTVFTTVDIBTTJEFDIBOOFMBUUBDLT ‣ DG4FSWJDF8PSLFSBCVTF
7BO(PFUIFNFUBM ‣ 4PMVUJPO$SPTT0SJHJO3FTPVSDF1PMJDZ $031 ‣ 5IJTIFBEFSQSFWFOUCSPXTFSTGSPNMPBEJOHSFTPVSDFTGFUDIFE CZDSPTT TJUFcPSJHJO OPDPSTSFRVFTUT ‣ /05&GPSNFSMZ UIJTJTDBMMFE'SPN0SJHJO Cross-Origin-Resource-Policy: same-site | same-origin
TIJGUKTJOGP (JNNFCJU BUMFBTU&YQMPSJOH5FDIOJRVFTPOCJU-FBLBHFJOUIF8FC 'FUDI.FUBEBUB *OGPUIBUIFMQTTFSWFSEFUFDUVOVTVBMSFRVFTUTGPSSFTPVSDFT ‣ 1SPCMFN ‣ 4FSWFSTDBOOPULOPXIPXUIFJSSFTPVSDFTXJMMCFVTFE ‣
4PMVUJPO'FUDI.FUBEBUB ‣ *UXPVMECFIFMQGVMJGTFSWFSTDPVMENBLFNPSFJOUFMMJHFOU EFDJTJPOTBCPVUXIFUIFSPSOPUUPSFTQPOEUPBHJWFO SFRVFTUCBTFEPOUIFXBZUIBUJU`TNBEF IUUQT NJLFXFTUHJUIVCJPTFDNFUBEBUB ‣ 1SPWJEFEXJUI4FD'FUDI IFBEFST
5IBOLZPVGPS-JTUFOJOH !MNU@TXBMMPX !ZOVDIZ IUUQTTIJGUKTJOGP
lmt_swallow
nobutomurata
kazuhitotakahashi
kakehashi
ryder472
shumei_ito
bbrbbq
yuki_ink
isaoshimizu
neuecc
fumiyasac0921
oztick139
coincheck_recruit
andyhume
eileencodes
productmarketing
aleyda
aki_iinuma
philnash
shlominoach
mraible
erikaheidi
cassininazir
geoffreycrofte
smashingmag
