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                     Secunia Research 21/03/2007

                - InterActual Player / CinePlayer -
        - IASystemInfo.dll 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 

* InterActual Player 2.60.12.0717
* CinePlayer 3.2

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 

"InterActual Features can be enjoyed on any Windows computer with a
Direct-Show compatible DVD player/decoder and DVD-ROM drive. The
system has to be able to play DVD Video (minimally) to enjoy
InterActual Features.".

Product Link:
http://player.interactual.com/

"CinePlayer delivers the absolute highest quality video playback
available for your PC. CinePlayer packs all of its powerful features
into an extremely easy-to-use and intuitive user interface."

Product Link:
http://www.sonic.com/products/Consumer/CinePlayer/default.aspx

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4) Description of Vulnerability

Secunia Research has discovered a vulnerability in InterActual Player
and CinePlayer, which can be exploited by malicious people to
compromise a user's system.

The vulnerability is caused due to a boundary error in the
IASystemInfo.dll ActiveX control when processing the "ApplicationType"
property. This can be exploited to cause a stack-based buffer overflow
via an overly long string (more than 260 bytes).

Successful exploitation allows execution of arbitrary code when e.g.
visiting a malicious website.

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5) Solution 

Set the kill-bit on the ActiveX control.

The vendor is reportedly working on fixed versions.

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6) Time Table 

19/01/2007 - Vendor notified.
19/01/2007 - Vendor response.
15/03/2007 - Vendor contacted (status request).
21/03/2007 - 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-2007-0348 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/2007-37/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

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