EDraw Flowchart ActiveX Control '.edd' File Buffer Overflow Vulnerability

Bugtraq ID:	39642
Class:	Boundary Condition Error
CVE:
Remote:	Yes
Local:	No
Published:	Apr 22 2010 12:00AM
Updated:	Apr 22 2010 12:00AM
Credit:	Gjoko Krstic
Vulnerable:	EDraw Flowchart ActiveX Control 2.3 .6
Not Vulnerable:

EDraw Flowchart ActiveX Control '.edd' File Buffer Overflow Vulnerability

The EDraw Flowchart ActiveX control is prone to a buffer-overflow vulnerability because it fails to perform adequate boundary-checks on user-supplied data.

An attacker can exploit this issue to execute arbitrary code within the context of the affected application, typically Internet Explorer, that uses the ActiveX control. Failed exploit attempts will result in a denial-of-service condition.

EDraw Flowchart ActiveX Control '.edd' File Buffer Overflow Vulnerability

To exploit this issue, an attacker must entice an unsuspecting user to open a malicious '.edd' file.

The following proof of concept is available:

• /data/vulnerabilities/exploits/39642.pl

EDraw Flowchart ActiveX Control '.edd' File Buffer Overflow Vulnerability

Solution:
Currently we are not aware of any vendor-supplied patches. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

EDraw Flowchart ActiveX Control '.edd' File Buffer Overflow Vulnerability

References:

• EDraw Flowchart ActiveX Control 2.3 (.edd parsing) Remote Buffer Overflow PoC (Gjoko Krstic )
  
• Edraw Flowchart ActiveX Control Homepage (Edrawsoft)
  
• Microsoft Knowledge Base Article 240797 (Microsoft)