Type packetstorm
Reporter Aditya K Sood
Modified 2008-09-29T00:00:00


                                            `Opera Window Object Suppressing Remote Denial of Service.  
*Version Affected:*  
Opera 9.52  
The opera browser is vulnerable to window object based denial of  
service attack. The opera fails to sanitize a check when window.close()  
function is called in number of dynamically generated events.. The  
function is called in a suppressed manner and kills the parent window  
directly by default which makes it vulnerable to denial of service attack.  
This security issue is a result of design flaw in the browser.Scripts  
must not  
close windows that were not opened by script,if script specific code is  
There must be a parent window confirmation check prior to close of window.  
*Proof of Concept*  
SecNiche confirmed this vulnerability affects Opera on Microsoft  
Windows XP SP2 platform.The versions tested are:  
Opera 9.52  
*Disclosure Timeline:*  
Disclosed: 28 September 2008  
Release Date. 28 September ,2008  
*Vendor Response:*  
Vulnerability reported to Opera. Bug ID 365663  
Aditya K Sood  
The information in the advisory is believed to be accurate at the time  
of publishing  
based on currently available information. Use of the information  
constitutes acceptance  
for use in an AS IS condition. There is no representation or warranties,  
either express or  
implied by or with respect to anything in this document, and shall not  
be liable for a ny  
implied warranties of merchantability or fitness for a particular  
purpose or for any indirect  
special or consequential damages.  
<title>Opera (9.5.2) Window Object Supressing Remote Denial of Service.</title>  
<h2><center>Opera (9.5.2) Window Object Supressing Remote Denial of Service.<br><br>Proof of Concept</br></br> </center></h2>  
<b>Note:: Click the understated links to Trigger the Vulnerability..</b><br><br>  
<b>This POC has been designed with minimum object usage.</b></br></br>  
<b><center><a href="javascript:window.close(self);">Opera 9.52 Window Object Suppressing DoS Test POC</a></center>  
Version 9.52<br>  
Build 10108<br>  
Platform Win32<br>  
System Windows XP<br>  
Java Sun Java Runtime Environment version 1.6<br>  
XHTML+Voice Plug-in not loaded<br>