Gogago YouTube Video Converter 1.1.6 Buffer Overflow

Type packetstorm
Reporter High-Tech Bridge SA
Modified 2011-06-16T00:00:00


                                            `Vulnerability ID: HTB23012  
Reference: http://www.htbridge.ch/advisory/gogago_youtube_video_converter_activex_control_download_buffer_overflow_vulnerability.html  
Product: Gogago YouTube Video Converter   
Vendor: Gogago ( http://www.gogago.net/ )   
Vulnerable Version: 1.1.6 (3/29/2011) and probably prior  
Tested on: 1.1.6 (3/29/2011)  
Vendor Notification: 25 May 2011   
Vulnerability Type: Buffer Overflow  
Risk level: Medium   
Credit: High-Tech Bridge SA Security Research Lab ( http://www.htbridge.ch/advisory/ )   
Vulnerability Details:  
High-Tech Bridge SA Security Research Lab has discovered a buffer overflow vulnerability in Gogago YouTube Video Converter ActiveX control.  
User-supplied data in "bsURL" parameter is not properly bound-checked before being copied into an insufficiently sized buffer in "Download()" method in MDIEEx.dll file.  
Successfully exploiting the vulnerability allows remote attackers to execute arbitrary code in the context of the vulnerable application using the ActiveX control.  
The following PoC code is available:   
<object classid='clsid:7966A32A-5783-4F0B-824C-09077C023080' id='target'></object>  
<script language='javascript'>  
var arg1 = '';  
while (arg1.length < 2000) arg1+='A';