Vulnerability ID: HTB23012 Reference: Product: Gogago YouTube Video Converter Vendor: Gogago ( ) 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 ( ) 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: