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TITLE:
CDNetworks Nefficient Download NeffyLauncher ActiveX Control
Directory Traversal

SECUNIA ADVISORY ID:
SA29692

VERIFY ADVISORY:
http://secunia.com/advisories/29692/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
CDNetworks Nefficient Download 1.x
http://secunia.com/product/18268/

DESCRIPTION:
Simon Ryeo has reported a vulnerability in CDNetworks Nefficient
Download, which can be exploited by malicious people to compromise a
user's system.

The vulnerability is caused due to an input validation error in the
NeffyLauncher ActiveX control (NeffyLauncher.dll). This can be
exploited to download a malicious file into an arbitrary directory
(e.g. the "All Users" startup folder) by assigning a string
containing directory traversal sequences to the "SkinPath" property
with the "HttpSkin" property set to the malicious file to be
downloaded.

The vulnerability is reported in version 1.05. Other versions may
also be affected.

SOLUTION:
The vendor has reportedly issued a patch.

PROVIDED AND/OR DISCOVERED BY:
Simon Ryeo

ORIGINAL ADVISORY:
http://seclists.org/bugtraq/2008/Apr/0065.html

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