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Secunia Research: NTR ActiveX Control Four Buffer Overflow Vulnerabilities
From: Secunia Research <remove-vuln () secunia com>
Date: Wed, 11 Jan 2012 13:45:42 +0100

====================================================================== 

                     Secunia Research 11/01/2012

    - NTR ActiveX Control Four Buffer Overflow Vulnerabilities -

====================================================================== 
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

====================================================================== 
1) Affected Software 

* NTR ActiveX Control version 1.1.8.

NOTE: Other versions may also be affected.

====================================================================== 
2) Severity 

Rating: Highly critical
Impact: System compromise
Where:  Remote

====================================================================== 
3) Description of Vulnerability

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

1) A boundary error in the handling of the "StartModule()" method can 
be exploited to cause a stack-based buffer overflow via an overly long
"bstrUrl" parameter.

2) A boundary error when constructing an url can be exploited to cause 
a stack-based buffer overflow via e.g. an overly long, specially 
crafted "bstrParams" parameter passed to the "Check()" method.

3) A boundary error when constructing the path to a .ntr file can be 
exploited to cause a limited stack-based buffer overflow via an overly 
long, specially crafted "bstrUrl" parameter passed to the "Download()" 
or "DownloadModule()" methods.

4) A boundary error when constructing an url can be exploited to cause 
a stack-based buffer overflow via an overly long, specially crafted 
"bstrUrl" parameter passed to the "Download()" or "DownloadModule()" 
methods.

Successful exploitation of the vulnerabilities allows execution of 
arbitrary code.

====================================================================== 
4) Solution 

Upgrade to version 2.0.4.8.

====================================================================== 
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.

====================================================================== 
6) Credits 

Discovered by Carsten Eiram, Secunia Research.

====================================================================== 
7) References

The Common Vulnerabilities and Exposures (CVE) project has assigned 
CVE-2012-0266 for the vulnerabilities.

====================================================================== 
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
database as a service to the security community and private 
individuals, who are interested in or concerned about IT-security.

http://secunia.com/advisories/

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://secunia.com/secunia_research/

Secunia regularly hires new skilled team members. Check the URL below
to see currently vacant positions:

http://secunia.com/corporate/jobs/

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/advisories/mailing_lists/

====================================================================== 
9) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2012-1/

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

======================================================================

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