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                     Secunia Research 30/05/2007

          - Apple QuickTime Java Extension Code Execution -

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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 

* Apple Quicktime 7.1.6

NOTE: Prior versions may also be affected.

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2) Severity 

Rating: Highly critical
Impact: System access
Where:  From remote

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3) Vendor's Description of Software 

"Whether you are creating content for delivery on cell phones,
broadcast or the Internet, or a software developer looking to take
your application to the next level, QuickTime provides the most
comprehensive platform in the industry."

Product Link:
http://www.apple.com/quicktime/


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4) Description of Vulnerability

Secunia Research has discovered a vulnerability in Apple QuickTime,
which can be exploited by malicious people to compromise a user's
system.

The vulnerability is caused due to a design error in the security
restrictions on subclasses of QTObject, the QuickTime for Java base
class. The error allows a user-defined class that appears to be part
of the "quicktime" package to subclass any non-final QTObject derived
class and access unsafe protected member functions, resulting in
arbitrary memory access.

Successful exploitation allows execution of arbitrary code on Windows
and OS X systems when a user visits a malicious web site using a
Java-enabled browser.

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5) Solution 

Install Security Update (QuickTime 7.1.6).

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6) Time Table 

07/05/2007 - Vulnerability discovered.
08/05/2007 - Vendor notified.
09/05/2007 - Vendor response.
30/05/2007 - Public disclosure.

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7) Credits 

Discovered by Dyon Balding, Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned 
CVE-2007-2388 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/2007-52/

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

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