initial commit

hydra-rexec.c

@@ -0,0 +1,110 @@
+#include "hydra-mod.h"
+
+// no memleaks found on 110425
+
+#define COMMAND "/bin/ls /"
+
+extern char *HYDRA_EXIT;
+char *buf;
+
+int start_rexec(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, pass);
+  bptr += 1 + strlen(pass);
+
+  strcpy(bptr, COMMAND);
+
+  if (hydra_send(s, buffer2, 4 + strlen(login) + strlen(pass) + strlen(COMMAND), 0) < 0) {
+    return 1;
+  }
+
+  ret = hydra_recv(s, buffer, sizeof(buffer));
+
+  if (ret > 0 && buffer[0] == 0) {
+    hydra_report_found_host(port, ip, "rexec", fp);
+    hydra_completed_pair_found();
+  } else
+    hydra_completed_pair();
+
+  if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
+    return 3;
+  return 1;
+}
+
+void service_rexec(char *ip, int sp, unsigned char options, char *miscptr, FILE * fp, int port) {
+  int run = 1, next_run = 1, sock = -1;
+  int myport = PORT_REXEC, mysslport = PORT_REXEC_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 */
+      {
+        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_rexec(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_rexec_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;
+}