initial commit

hydra-rlogin.c

@@ -0,0 +1,149 @@
+#include "hydra-mod.h"
+
+/*
+
+RFC 1258
+client have to use port from 512 -> 1023 or server is denying the connection
+
+no memleaks found on 110425
+*/
+
+
+#define TERM "vt100/9600"
+
+extern char *HYDRA_EXIT;
+char *buf;
+
+int start_rlogin(int s, char *ip, int port, unsigned char options, char *miscptr, FILE * fp) {
+  char *empty = "";
+  char *login, *pass, buffer[300] = "", buffer2[100], *bptr = buffer2;
+  int ret;
+
+  if (strlen(login = hydra_get_next_login()) == 0)
+    login = empty;
+  if (strlen(pass = hydra_get_next_password()) == 0)
+    pass = empty;
+
+  memset(buffer2, 0, sizeof(buffer2));
+  bptr++;
+
+  strcpy(bptr, login);
+  bptr += 1 + strlen(login);
+
+  strcpy(bptr, login);
+  bptr += 1 + strlen(login);
+
+  strcpy(bptr, TERM);
+
+  if (hydra_send(s, buffer2, 4 + strlen(login) + strlen(login) + strlen(TERM), 0) < 0) {
+    return 4;
+  }
+  ret = hydra_recv(s, buffer, sizeof(buffer));
+  /* 0x00 is sent but hydra_recv transformed it */
+  if (strlen(buffer) == 0)
+    ret = hydra_recv(s, buffer, sizeof(buffer));
+
+  if (ret > 0 && (strstr(buffer, "rlogind:") != NULL))
+    return 1;
+
+  if (ret > 0 && (strstr(buffer, "ssword") != NULL)) {
+    if (strlen(pass = hydra_get_next_password()) == 0)
+      pass = empty;
+    sprintf(buffer2, "%s\r", pass);
+    if (hydra_send(s, buffer2, 1 + strlen(pass), 0) < 0) {
+      return 1;
+    }
+    memset(buffer, 0, sizeof(buffer));
+    ret = hydra_recv(s, buffer, sizeof(buffer));
+    if (strcmp(buffer, "\r\n"))
+      ret = hydra_recv(s, buffer, sizeof(buffer));
+  }
+  /* Authentication failure */
+
+  if (ret > 0 && (strstr(buffer, "ssword") == NULL)) {
+#ifdef HAVE_PCRE
+    if (!hydra_string_match(buffer, "\\s(failure|incorrect|denied)")) {
+#else
+    /* check for failure and incorrect msg */
+    if ((strstr(buffer, "ailure") == NULL) && (strstr(buffer, "ncorrect") == NULL) && (strstr(buffer, "denied") == NULL)) {
+#endif
+      hydra_report_found_host(port, ip, "rlogin", fp);
+      hydra_completed_pair_found();
+    } else {
+      hydra_completed_pair();
+    }
+  } else {
+    /* if password is asked a second time, it means the pass we provided is wrong */
+    hydra_completed_pair();
+  }
+
+  if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
+    return 3;
+  return 1;
+}
+
+void service_rlogin(char *ip, int sp, unsigned char options, char *miscptr, FILE * fp, int port) {
+  int run = 1, next_run = 1, sock = -1;
+  int myport = PORT_RLOGIN, mysslport = PORT_RLOGIN_SSL;
+
+  hydra_register_socket(sp);
+
+  if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
+    return;
+  while (1) {
+    next_run = 0;
+    switch (run) {
+    case 1:                    /* connect and service init function */
+      {
+        /* 512 -> 1023 */
+        hydra_set_srcport(1023);
+        if (sock >= 0)
+          sock = hydra_disconnect(sock);
+//        usleep(275000);
+        if ((options & OPTION_SSL) == 0) {
+          if (port != 0)
+            myport = port;
+          sock = hydra_connect_tcp(ip, myport);
+          port = myport;
+        } else {
+          if (port != 0)
+            mysslport = port;
+          sock = hydra_connect_ssl(ip, mysslport);
+          port = mysslport;
+        }
+        if (sock < 0) {
+          hydra_report(stderr, "[ERROR] Child with pid %d terminating, can not connect\n", (int) getpid());
+          hydra_child_exit(1);
+        }
+        next_run = 2;
+        break;
+      }
+    case 2:                    /* run the cracking function */
+      next_run = start_rlogin(sock, ip, port, options, miscptr, fp);
+      break;
+    case 3:                    /* clean exit */
+      if (sock >= 0)
+        sock = hydra_disconnect(sock);
+      hydra_child_exit(0);
+      return;
+    default:
+      hydra_report(stderr, "[ERROR] Caught unknown return code, exiting!\n");
+      hydra_child_exit(0);
+    }
+    run = next_run;
+  }
+}
+
+int service_rlogin_init(char *ip, int sp, unsigned char options, char *miscptr, FILE * fp, int port) {
+  // called before the childrens are forked off, so this is the function
+  // which should be filled if initial connections and service setup has to be
+  // performed once only.
+  //
+  // fill if needed.
+  // 
+  // return codes:
+  //   0 all OK
+  //   -1  error, hydra will exit, so print a good error message here
+
+  return 0;
+}