mirror of
https://github.com/fortra/impacket
synced 2026-06-08 14:15:13 +00:00
Gabriel Gonzalez
ae0ec300f8
* Standardized examples logger init method * Fixing missing import * Standardized examples init_ldap_session function #1 * Calling new shared function _ldap3_kerberos_login from example addcomputer * Removed considering -debug in each example. Now it's handled in utils. * Standardized EMPTY_LM_HASH in impacket.examples.utils * Unify parse_identity function (phase 1) * Standardized parse_identity * Renamed "_ldap3_kerberos_login" to "ldap3_kerberos_login" (as it is called from outside) * Standardize "logger" init in regsecrets.py * Standardized LDAP login into a single function in utils.py:ldap_login
238 lines
12 KiB
Python
238 lines
12 KiB
Python
#!/usr/bin/env python
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# Impacket - Collection of Python classes for working with network protocols.
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#
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# Copyright Fortra, LLC and its affiliated companies
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#
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# All rights reserved.
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#
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# This software is provided under a slightly modified version
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# of the Apache Software License. See the accompanying LICENSE file
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# for more information.
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#
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# Description:
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# This script is inspired from Alberto Solino's -> imacket-GetAdUsers.
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# This script will make a LDAP query to DC and gather information about all the COMPUTERS present in DC.
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# Also, has the capablity of resolving the IP addresses of the idenitifed hosts by making a DNS query of A record to the DC.
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#
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# Inspired from author:
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# Alberto Solino (@agsolino)
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#
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# Author:
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# Fowz Masood (https://www.linkedin.com/in/f-masood/)
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# Please let me know of any improvements / suggestions or bugs.
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#
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#
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# Reference for:
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# LDAP
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#
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from __future__ import division
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from __future__ import print_function
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from __future__ import unicode_literals
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import argparse
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import logging
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import sys
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import dns.resolver
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from datetime import datetime
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from impacket import version
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from impacket.dcerpc.v5.samr import UF_ACCOUNTDISABLE
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from impacket.examples import logger
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from impacket.examples.utils import parse_identity, ldap_login
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from impacket.ldap import ldap, ldapasn1
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class GetADComputers:
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def __init__(self, username, password, domain, cmdLineOptions):
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self.options = cmdLineOptions
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self.__username = username
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self.__password = password
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self.__domain = domain
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self.__target = None
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self.__lmhash = ''
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self.__nthash = ''
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self.__aesKey = cmdLineOptions.aesKey
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self.__doKerberos = cmdLineOptions.k
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#[!] in this script the value of -dc-ip option is self.__kdcIP and the value of -dc-host option is self.__kdcHost
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self.__kdcIP = cmdLineOptions.dc_ip
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self.__kdcHost = cmdLineOptions.dc_host
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self.__requestUser = cmdLineOptions.user
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self.__resolveIP = cmdLineOptions.resolveIP
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if cmdLineOptions.hashes is not None:
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self.__lmhash, self.__nthash = cmdLineOptions.hashes.split(':')
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# Create the baseDN
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domainParts = self.__domain.split('.')
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self.baseDN = ''
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for i in domainParts:
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self.baseDN += 'dc=%s,' % i
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# Remove last ','
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self.baseDN = self.baseDN[:-1]
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# Let's calculate the header and format
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if self.__resolveIP : #resolveIP flag is used, we will try to resolve the IP address
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self.__header = ["SAM AcctName", "DNS Hostname", "OS Version", "OS", "IPAddress"]
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# Since we won't process all rows at once, this will be fixed lengths
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self.__colLen = [15, 35, 15, 35, 20]
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self.__outputFormat = ' '.join(['{%d:%ds} ' % (num, width) for num, width in enumerate(self.__colLen)])
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else:
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self.__header = ["SAM AcctName", "DNS Hostname", "OS Version", "OS"]
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# Since we won't process all rows at once, this will be fixed lengths
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self.__colLen = [15, 35, 15, 20]
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self.__outputFormat = ' '.join(['{%d:%ds} ' % (num, width) for num, width in enumerate(self.__colLen)])
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@staticmethod
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def getUnixTime(t):
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t -= 116444736000000000
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t /= 10000000
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return t
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def processRecord(self, item):
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if isinstance(item, ldapasn1.SearchResultEntry) is not True:
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return
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sAMAccountName = ''
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dNSHostName = ''
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operatingSystem = ''
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operatingSystemVersion = ''
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try:
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if(self.__resolveIP): #will resolve the IP address
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resolvedIPAddress=''
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resolveIP = dns.resolver.Resolver()
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dns.resolver.default_resolver = dns.resolver.Resolver(configure=False) #Dont want to use the default DNS in /etc/resolv.conf
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dns.resolver.default_resolver.nameservers = [self.__kdcIP] #converting DCIP from STRING to LIST
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for attribute in item['attributes']:
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if str(attribute['type']) == 'sAMAccountName':
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if attribute['vals'][0].asOctets().decode('utf-8').endswith('$') is True:
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# sAMAccountName
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sAMAccountName = attribute['vals'][0].asOctets().decode('utf-8')
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if str(attribute['type']) == 'dNSHostName':
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if attribute['vals'][0].asOctets().decode('utf-8').endswith('$') is False:
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# dNSHostName + IP resolve
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dNSHostName = attribute['vals'][0].asOctets().decode('utf-8')
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try:
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answers=dns.resolver.resolve(attribute['vals'][0].asOctets().decode('utf-8'),'A',tcp=True)
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for rdata in answers:
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resolvedIPAddress = rdata.address
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except:
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resolvedIPAddress = '<unable to resolve>'
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if str(attribute['type']) == 'operatingSystem':
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if attribute['vals'][0].asOctets().decode('utf-8').endswith('$') is False:
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# operatingSystem
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operatingSystem = attribute['vals'][0].asOctets().decode('utf-8')
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if str(attribute['type']) == 'operatingSystemVersion':
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if attribute['vals'][0].asOctets().decode('utf-8').endswith('$') is False:
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# operatingSystemVersion
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operatingSystemVersion = attribute['vals'][0].asOctets().decode('utf-8')
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print((self.__outputFormat.format(*[sAMAccountName, dNSHostName, operatingSystemVersion,operatingSystem,resolvedIPAddress])))
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else: #won't resolve the IP address
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for attribute in item['attributes']:
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if str(attribute['type']) == 'sAMAccountName':
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if attribute['vals'][0].asOctets().decode('utf-8').endswith('$') is True:
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# sAMAccountName
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sAMAccountName = attribute['vals'][0].asOctets().decode('utf-8')
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if str(attribute['type']) == 'dNSHostName':
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if attribute['vals'][0].asOctets().decode('utf-8').endswith('$') is False:
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# dNSHostName
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dNSHostName = attribute['vals'][0].asOctets().decode('utf-8')
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if str(attribute['type']) == 'operatingSystem':
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if attribute['vals'][0].asOctets().decode('utf-8').endswith('$') is False:
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# operatingSystem
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operatingSystem = attribute['vals'][0].asOctets().decode('utf-8')
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if str(attribute['type']) == 'operatingSystemVersion':
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if attribute['vals'][0].asOctets().decode('utf-8').endswith('$') is False:
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# operatingSystemVersion
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operatingSystemVersion = attribute['vals'][0].asOctets().decode('utf-8')
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print((self.__outputFormat.format(*[sAMAccountName, dNSHostName, operatingSystemVersion,operatingSystem])))
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except Exception as e:
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logging.debug("Exception", exc_info=True)
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logging.error('Skipping item, cannot process due to error %s' % str(e))
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pass
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def run(self):
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# Connect to LDAP
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ldapConnection = ldap_login(self.__target, self.baseDN, self.__kdcIP, self.__kdcHost, self.__doKerberos, self.__username, self.__password, self.__domain, self.__lmhash, self.__nthash, self.__aesKey)
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# updating "self.__target" as it may have changed in the ldap_login processing
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self.__target = ldapConnection._dstHost
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logging.info('Querying %s for information about domain.' % self.__target)
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# Print header
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print((self.__outputFormat.format(*self.__header)))
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print((' '.join(['-' * itemLen for itemLen in self.__colLen])))
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# Building the search filter
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#searchFilter = '(objectCategory=computer)'
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searchFilter = '(&(objectCategory=computer)(objectClass=computer))'
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try:
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logging.debug('Search Filter=%s' % searchFilter)
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sc = ldap.SimplePagedResultsControl(size=100)
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ldapConnection.search(searchFilter=searchFilter,attributes=['sAMAccountName','dNSHostName','operatingSystem','operatingSystemVersion'],sizeLimit=0, searchControls = [sc], perRecordCallback=self.processRecord)
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except ldap.LDAPSearchError:
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raise
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ldapConnection.close()
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# Process command-line arguments.
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if __name__ == '__main__':
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print((version.BANNER))
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parser = argparse.ArgumentParser(add_help = True, description = "Queries target domain for computer data")
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parser.add_argument('target', action='store', help='domain[/username[:password]]')
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parser.add_argument('-user', action='store', metavar='username', help='Requests data for specific user ')
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parser.add_argument('-ts', action='store_true', help='Adds timestamp to every logging output')
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parser.add_argument('-debug', action='store_true', help='Turn DEBUG output ON')
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parser.add_argument('-resolveIP', action='store_true', help='Tries to resolve the IP address of computer objects, by performing the nslookup on the DC.')
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group = parser.add_argument_group('authentication')
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group.add_argument('-hashes', action="store", metavar = "LMHASH:NTHASH", help='NTLM hashes, format is LMHASH:NTHASH')
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group.add_argument('-no-pass', action="store_true", help='don\'t ask for password (useful for -k)')
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group.add_argument('-k', action="store_true", help='Use Kerberos authentication. Grabs credentials from ccache file '
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'(KRB5CCNAME) based on target parameters. If valid credentials '
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'cannot be found, it will use the ones specified in the command '
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'line')
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group.add_argument('-aesKey', action="store", metavar = "hex key", help='AES key to use for Kerberos Authentication '
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'(128 or 256 bits)')
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group = parser.add_argument_group('connection')
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group.add_argument('-dc-ip', action='store', metavar='ip address', help='IP Address of the domain controller. If '
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'ommited it use the domain part (FQDN) '
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'specified in the target parameter')
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group.add_argument('-dc-host', action='store', metavar='hostname', help='Hostname of the domain controller to use. '
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'If ommited, the domain part (FQDN) '
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'specified in the account parameter will be used')
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if len(sys.argv)==1:
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parser.print_help()
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sys.exit(1)
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options = parser.parse_args()
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# Init the example's logger theme
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logger.init(options.ts, options.debug)
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domain, username, password, _, _, options.k = parse_identity(options.target, options.hashes, options.no_pass, options.aesKey, options.k)
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if domain == '':
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logging.critical('Domain should be specified!')
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sys.exit(1)
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try:
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executer = GetADComputers(username, password, domain, options)
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executer.run()
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except Exception as e:
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if logging.getLogger().level == logging.DEBUG:
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import traceback
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traceback.print_exc()
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logging.error(str(e))
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