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Secunia Research: Virtual CD Products NCTAudioFile2 ActiveX Control Buffer Overflow |
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Secunia Research 24/01/2007
- Virtual CD Products NCTAudioFile2 ActiveX Control Buffer Overflow -
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Table of Contents
Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10
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1) Affected Software
Virtual CD versions 6.0.0.7, 7.1.0.2, and 8.0.0.6
Virtual CD File Server version 7.1.0.3
NOTE: Other versions may also be affected.
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2) Severity
Rating: Highly critical
Impact: System compromise
Where: Remote
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3) Vendor's Description of Software
"With Virtual CD you can create compressed 1:1 copies (virtual
CDs/DVDs) to your hard drive. You can then store your originals safely
in a cabinet! Your virtual CDs are then available with a simple click
or even automatically with the autostart of the corresponding program."
Product Link:
http://www.virtualcd-online.com/index.cfm
"Providing data on CDs and DVDs in a network was required much work
and/or immense costs. The fileserver extension of Virtual CD puts an
end to that. With only one low-cost license you can provide all clients
connected with your file server with the desired data."
Product Link:
http://www.virtualcd-online.com/vcd/apps/overview/fileserver.cfm?lg=0
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4) Description of Vulnerability
Secunia Research has discovered a vulnerability in two Virtual CD
products, which can be exploited by malicious people to compromise a
user's system.
The vulnerability is caused due to a boundary error in the
NCTAudioFile2.AudioFile ActiveX control when handling the
"SetFormatLikeSample()" method. This can be exploited to cause a
stack-based buffer overflow by passing an overly long string (about
4124 bytes) as argument to the affected method.
Successful exploitation allows execution of arbitrary code when a user
e.g. visits a malicious website.
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5) Solution
Set the kill-bit for the affected ActiveX control.
Use another product.
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6) Time Table
17/01/2007 - Vendor notified.
24/01/2007 - Public disclosure.
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7) Credits
Discovered by Carsten Eiram, Secunia Research.
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8) References
The Common Vulnerabilities and Exposures (CVE) project has assigned
CVE-2007-0018 for the vulnerability.
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9) About Secunia
Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:
http://corporate.secunia.com/
Secunia also provides a publicly accessible and comprehensive advisory
database as a service to the security community and private
individuals, who are interested in or concerned about IT-security.
http://secunia.com/
Secunia believes that it is important to support the community and to
do active vulnerability research in order to aid improving the
security and reliability of software in general:
http://corporate.secunia.com/secunia_research/33/
Secunia regularly hires new skilled team members. Check the URL below
to see currently vacant positions:
http://secunia.com/secunia_vacancies/
Secunia offers a FREE mailing list called Secunia Security Advisories:
http://secunia.com/secunia_security_advisories/
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10) Verification
Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2007-20/
Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/
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