Park Gyu Tae and Neo have reported in a vulnerability in nProtect Personal OnlineScan, which potentially can be exploited by malicious people to compromise a vulnerable system.

The vulnerability is caused due to the Npos ActiveX control failing to verify some input parameters (e.g. the URL of the update site) and the authenticity of the received update configuration file. This can potentially be exploited to download arbitrary files via a specially crafted update configuration file from a malicious web site.

Successful exploitation requires that the user is tricked into visiting a malicious web site or requires a site hosting OnlineScan to e.g. have some exploitable cross-site scripting vulnerabilities.

The vulnerability has been reported in version 2005.5.3.1. Prior versions may also be affected.

Solution
The vulnerability has reportedly been fixed in the latest version.

Provided and/or discovered by
Park Gyu Tae and Neo

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