133 lines
5.0 KiB
Python
133 lines
5.0 KiB
Python
|
##################################################################
|
||
|
|
# Filename: netscreen.py
|
||
|
|
#
|
||
|
|
# Please note this script will now run in Python version 3.x
|
||
|
|
#
|
||
|
|
# This script will generate a netscreen formatted password
|
||
|
|
#
|
||
|
|
# This program requires two command line arguments, and works in two modes:
|
||
|
|
# Mode 1:
|
||
|
|
# The first argument is a username
|
||
|
|
# The second argument is a plaintext password
|
||
|
|
# Mode 2:
|
||
|
|
# The first argument is -f to indicate reading usernames and passwords from a file
|
||
|
|
# The second argument is the filename to read
|
||
|
|
#
|
||
|
|
# The input file should have one of the following formats (a "," or ":" separator):
|
||
|
|
# <username>,<plain-text-password>
|
||
|
|
# or
|
||
|
|
# <username>:<plain-text-password>
|
||
|
|
#
|
||
|
|
# (Don't put a "space" after the separator, unless it is part of the password)
|
||
|
|
#
|
||
|
|
# Example input file:
|
||
|
|
# admin,netscreen
|
||
|
|
# cisco:cisco
|
||
|
|
# robert,harris
|
||
|
|
#
|
||
|
|
# Output will be the username and hashed password in John the Ripper format
|
||
|
|
# If reading usernames and passwords from a file, the output file name will be: netscreen-JtR-output.txt
|
||
|
|
# If the file netscreen-JtR-output.txt exists, it will be overwritten.
|
||
|
|
#
|
||
|
|
# Version 2.04
|
||
|
|
# Updated on September 13, 2010 by Robert B. Harris from VA and Brad Tilley
|
||
|
|
# Updated to now run in Python v3.x (still works in Python 2.x)
|
||
|
|
# Additional separator for the input file. It can now have the new separator ":" (or use the old one ",")
|
||
|
|
# Now correctly handles a separator ("," or ":") in the password field when reading from a file.
|
||
|
|
# Updated help text in script
|
||
|
|
#
|
||
|
|
# Version 2.01
|
||
|
|
# Updated on August 30, 2010 by Robert B. Harris from VA
|
||
|
|
# Very minor changes, removed tab, noted it won't run in python 3.x
|
||
|
|
#
|
||
|
|
# Version 2.0
|
||
|
|
# Updated on August 12, 2010 by Robert B. Harris from VA
|
||
|
|
# Updated to use the hashlib library
|
||
|
|
# Updated to print help text if both input arguments are missing
|
||
|
|
# Updated to optionally read from a file
|
||
|
|
#
|
||
|
|
##################################################################
|
||
|
|
|
||
|
|
import sys
|
||
|
|
|
||
|
|
def net(user, password):
|
||
|
|
b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
|
||
|
|
middle = "Administration Tools"
|
||
|
|
s = "%s:%s:%s" % (user, middle, password)
|
||
|
|
|
||
|
|
# For versions of Python 2.5 and older
|
||
|
|
if sys.version_info[0] == 2 and sys.version_info[1] < 6:
|
||
|
|
import md5
|
||
|
|
m = md5.new(s).digest()
|
||
|
|
else:
|
||
|
|
import hashlib
|
||
|
|
m = hashlib.md5(s.encode('latin_1')).digest()
|
||
|
|
|
||
|
|
narray = []
|
||
|
|
for i in range(8):
|
||
|
|
if sys.version_info[0] == 2:
|
||
|
|
n1 = ord(m[2*i])
|
||
|
|
n2 = ord(m[2*i+1])
|
||
|
|
narray.append( (n1<<8 & 0xff00) | (n2 & 0xff) )
|
||
|
|
|
||
|
|
if sys.version_info[0] == 3:
|
||
|
|
n1 = ord(chr(m[2*i]))
|
||
|
|
n2 = ord(chr(m[2*i+1]))
|
||
|
|
narray.append( (n1<<8 & 0xff00) | (n2 & 0xff) )
|
||
|
|
res = ""
|
||
|
|
for i in narray:
|
||
|
|
p1 = i >> 12 & 0xf
|
||
|
|
p2 = i >> 6 & 0x3f
|
||
|
|
p3 = i & 0x3f
|
||
|
|
res = res + b64[p1] + b64[p2] + b64[p3]
|
||
|
|
|
||
|
|
for c, n in zip("nrcstn", [0, 6, 12, 17, 23, 29]):
|
||
|
|
res = res[:n] + c + res[n:]
|
||
|
|
return res
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == '__main__':
|
||
|
|
if len(sys.argv) == 3:
|
||
|
|
if (sys.argv[1])== "-f": # If true, reading from a file
|
||
|
|
in_file = (sys.argv[2]) # 2nd commandline arg is the filename to read from
|
||
|
|
input_file = open( in_file, 'r')
|
||
|
|
output_file = open ("netscreen-JtR-output.txt" , 'w')
|
||
|
|
import re
|
||
|
|
for line in input_file:
|
||
|
|
data=line.strip('\n')
|
||
|
|
if re.search(',',line):
|
||
|
|
data=data.split(',',1) # line contains ,
|
||
|
|
else:
|
||
|
|
if re.search(':',line):
|
||
|
|
data=data.split(':',1) # line contains :
|
||
|
|
else:
|
||
|
|
print ("\n\n\n")
|
||
|
|
print ("Error in input file.")
|
||
|
|
print ("The input file must have either a \",\" or \":\" separator on each line.")
|
||
|
|
print ("Also it should not contain any blank lines. Please correct the input file.")
|
||
|
|
break
|
||
|
|
username = data[0]
|
||
|
|
password = data[1]
|
||
|
|
ciphertext = net(username,password)
|
||
|
|
output_file.write ("%s:%s$%s" % (username,username,ciphertext))
|
||
|
|
output_file.write ("\n")
|
||
|
|
input_file.close()
|
||
|
|
print("\nThe output file has been created.")
|
||
|
|
output_file.close()
|
||
|
|
else: # We are not reading from a file
|
||
|
|
username = sys.argv[1]
|
||
|
|
password = sys.argv[2]
|
||
|
|
ciphertext = net(username,password)
|
||
|
|
print(("%s:%s$%s" % (username,username,ciphertext)))
|
||
|
|
else: # User did not input the required two commandline arguments
|
||
|
|
print("\n\n")
|
||
|
|
print("This program requires two commandline arguments:")
|
||
|
|
print("The first argument is a username, or -f to indicate reading from a file.")
|
||
|
|
print("The second argument is a plaintext password, or the name of the file to read from.")
|
||
|
|
print("See the additional text at the beginning of this script for more details.\n")
|
||
|
|
print("Output will be the username and the (Netscreen algorithm based) hashed password, in John the Ripper format. \n\n")
|
||
|
|
print("Example")
|
||
|
|
print("Input: netscreen.py admin netscreen")
|
||
|
|
print("Output: admin:admin$nKv3LvrdAVtOcE5EcsGIpYBtniNbUn")
|
||
|
|
print("(Netscreen uses the username as the salt)")
|