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                     Secunia Research 11/01/2012

- NTR ActiveX Control "StopModule()" Input Validation Vulnerability -

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Table of Contents

Affected Software....................................................1
Severity.............................................................2
Description of Vulnerability.........................................3
Solution.............................................................4
Time Table...........................................................5
Credits..............................................................6
References...........................................................7
About Secunia........................................................8
Verification.........................................................9

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1) Affected Software 

* NTR ActiveX Control version 1.1.8.

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) Description of Vulnerability

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

The vulnerability is caused by missing input validation in the 
handling of the "StopModule()" method and can be exploited via a 
specially crafted "lModule" parameter to reference an expected module 
structure at an arbitrary memory address. This can be exploited to 
dereference an arbitrary value in memory as a function pointer.

Successful exploitation allows execution of arbitrary code.

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4) Solution 

Upgrade to version 2.0.4.8.

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5) Time Table 

25/07/2011 - Vendor notified.
25/07/2011 - Vendor response.
27/12/2011 - Vendor releases fixed version.
11/01/2012 - Public disclosure.

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6) Credits 

Discovered by Carsten Eiram, Secunia Research.

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7) References

The Common Vulnerabilities and Exposures (CVE) project has assigned 
CVE-2012-0267 for the vulnerability.

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8) About Secunia

Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:

http://secunia.com/advisories/business_solutions/

Secunia also provides a publicly accessible and comprehensive advisory
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http://secunia.com/advisories/mailing_lists/

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9) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2012-2/

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

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