Clever Components Database Comparer ActiveX Control Stack Based Buffer Overflow Vulnerability
TITLE: Clever Components Database Comparer ActiveX Control Stack Based Buffer Overflow Vulnerability
CLASS: Boundary Condition Error
CVE:
REMOTE: Yes
LOCAL: No
PUBLISHED: May 14 2007 12:00AM
UPDATE: May 14 2007 09:28PM
CREDIT: shinnai is credited with the discovery of this issue.
VULNERABLE:
Clever Components Database Comparer ActiveX 2.2NOT VULNERABLE:
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Discussion
Database Comparer ActiveX control is prone to a stack-based buffer-overflow vulnerability because it fails to properly check boundaries on user-supplied data before copying it into an insufficiently sized memory buffer.
Successfully exploiting this issue allows remote attackers to execute arbitrary code in the context of the application using the ActiveX control (typically Internet Explorer). Failed exploit attempts likely result in denial-of-service conditions.
This issue affects Database Comparer 2.2; other versions may also be affected.
Exploit
To exploit this issue, an attacker must entice an unsuspecting user to open a maliciously crafted webpage.
The following proof-of-concept exploit is available:
Solution
Solution:
Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or if you are aware of more recent information, please mail us at: mailto:vuldb@securityfocus.com.
References
References:
- Clever Components Database Comparer ActiveX Control Homepage (Clever Components)
- Microsoft Knowledge Base article 240797 (Microsoft)