OSEC

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[Full-Disclosure] FreezeX file access vulnerability

From: Xenzeo (xenzeoblackhat.dk)
Date: Mon Dec 20 2004 - 14:02:08 CST


Affected Products:
        Faronics FreezeX v. 1.00.100.0666
        (http://www.faronics.com/html/Freezex.asp)

Author:
        Xenzeo

FreezeX is a program that promise, it can prevent executable files from
beeing run on windows OS.

FreezeX has a database of every file from when it was installed (db.fzx)
this file i located in C:\Program Files\Faronics\FreezeX\db.fzx, this
file seems inaccessable, when trying accessing this directory, windows
reports Access Denied from "dos" and windows.

Though one with administrative access can simply overwrite this file
with misc data, resulting in killing FreezeX

Proof Of Concept:

C:\> echo "diediedie" > C:\Program Files\Faronices\Freezex\db.fzx

        Reboot windows, and FreezeX can no longer determine what
        files have permission to be run, and needs to be reinstalled
        to work again.

Vender status:
        Faronics know of this and promises it will be fixed shortly.

-Xenzeo
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