shinnai has discovered two vulnerabilities in MW6 Technologies QRCode ActiveX control, which can be exploited by malicious people to overwrite arbitrary files.

The vulnerabilities are caused due to the MW6QRCode.QRCode.1 ActiveX control (MW6QRCode.dll) including the insecure "SaveAsBMP()" and "SaveAsWMF()" methods, which saves an image into a file specified as an argument. These can be exploited to overwrite and corrupt arbitrary files on the system in the context of the currently logged-on user.

The vulnerabilities are confirmed in version 3.0.0.1. Other versions may also be affected.

Solution
Set the kill-bit for the affected ActiveX control.

Provided and/or discovered by
shinnai

Changelog
Further details available to Secunia VIM customers

Original Advisory
http://www.shinnai.altervista.org/exploits/OREurGhGgAtlCT8J2jSY.html

Alternate/detailed remediation
Further details available in Customer Area

Deep Links
Links available to Secunia VIM customers