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NTR ActiveX Control Four Buffer Overflows

NTR ActiveX Control Four Buffer Overflows
Posted Jan 12, 2012
Authored by Carsten Eiram | Site secunia.com

Secunia Research has discovered four buffer overflows in the NTR ActiveX control, which can be exploited by malicious people to compromise a user's system. NTR ActiveX Control version 1.1.8 is affected.

tags | advisory, overflow, activex
advisories | CVE-2012-0266
SHA-256 | 749b21b3ffb4706107fa23982681c9002436ae13b7acd96089e1d8988fdcb778

NTR ActiveX Control Four Buffer Overflows

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

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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