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Insecure Library Loading
Highly critical

NTR ActiveX Control Multiple Vulnerabilities

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Release Date:  2012-01-11    Views:  2,448

Secunia Advisory SA45166

Where:

From remote

Impact:

System access

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Secunia Research has discovered multiple 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) Missing input validation in the handling of the "StopModule()" method 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.

3) 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.

4) 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.

5) 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.

The vulnerabilities are confirmed in version 1.1.8. Other versions may also be affected.


Solution:
Upgrade to version 2.0.4.8.

Provided and/or discovered by:
Carsten Eiram, Secunia Research.

Original Advisory:
Secunia Research:
http://secunia.com/secunia_research/2012-1/
http://secunia.com/secunia_research/2012-2/

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: NTR ActiveX Control Multiple Vulnerabilities

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