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TITLE:
NTR ActiveX Control Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA45166

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/45166/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=45166

RELEASE DATE:
2012-01-11

DISCUSS ADVISORY:
http://secunia.com/advisories/45166/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
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 * Criticality Level
 * Impact
 * Where
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 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/45166/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=45166

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

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/

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
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private users keeping their systems up to date against the latest
vulnerabilities.

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