NetExec/cme/protocols/winrm.py

232 lines
10 KiB
Python

import requests
import logging
import configparser
from impacket.smbconnection import SMBConnection, SessionError
from cme.connection import *
from cme.helpers.logger import highlight
from cme.helpers.bloodhound import add_user_bh
from cme.logger import CMEAdapter
from io import StringIO
from pypsrp.client import Client
# The following disables the InsecureRequests warning and the 'Starting new HTTPS connection' log message
from requests.packages.urllib3.exceptions import InsecureRequestWarning
requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
class SuppressFilter(logging.Filter):
# remove warning https://github.com/diyan/pywinrm/issues/269
def filter(self, record):
return 'wsman' not in record.getMessage()
class winrm(connection):
def __init__(self, args, db, host):
self.domain = None
self.server_os = None
connection.__init__(self, args, db, host)
@staticmethod
def proto_args(parser, std_parser, module_parser):
winrm_parser = parser.add_parser('winrm', help="own stuff using WINRM", parents=[std_parser, module_parser])
winrm_parser.add_argument("-H", '--hash', metavar="HASH", dest='hash', nargs='+', default=[], help='NTLM hash(es) or file(s) containing NTLM hashes')
winrm_parser.add_argument("--no-bruteforce", action='store_true', help='No spray when using file for username and password (user1 => password1, user2 => password2')
winrm_parser.add_argument("--continue-on-success", action='store_true', help="continues authentication attempts even after successes")
winrm_parser.add_argument("--port", type=int, default=0, help="Custom WinRM port")
dgroup = winrm_parser.add_mutually_exclusive_group()
dgroup.add_argument("-d", metavar="DOMAIN", dest='domain', type=str, default=None, help="domain to authenticate to")
dgroup.add_argument("--local-auth", action='store_true', help='authenticate locally to each target')
cgroup = winrm_parser.add_argument_group("Command Execution", "Options for executing commands")
cgroup.add_argument('--no-output', action='store_true', help='do not retrieve command output')
cgroup.add_argument("-x", metavar="COMMAND", dest='execute', help="execute the specified command")
cgroup.add_argument("-X", metavar="PS_COMMAND", dest='ps_execute', help='execute the specified PowerShell command')
return parser
def proto_flow(self):
self.proto_logger()
if self.create_conn_obj():
self.enum_host_info()
self.print_host_info()
if self.login():
if hasattr(self.args, 'module') and self.args.module:
self.call_modules()
else:
self.call_cmd_args()
def proto_logger(self):
self.logger = CMEAdapter(extra={'protocol': 'SMB',
'host': self.host,
'port': 'NONE',
'hostname': 'NONE'})
def enum_host_info(self):
# smb no open, specify the domain
if self.args.domain:
self.domain = self.args.domain
self.logger.extra['hostname'] = self.hostname
else:
try:
smb_conn = SMBConnection(self.host, self.host, None)
try:
smb_conn.login('', '')
except SessionError as e:
if "STATUS_ACCESS_DENIED" in e.message:
pass
self.domain = smb_conn.getServerDNSDomainName()
self.hostname = smb_conn.getServerName()
self.server_os = smb_conn.getServerOS()
self.logger.extra['hostname'] = self.hostname
try:
smb_conn.logoff()
except:
pass
except Exception as e:
logging.debug("Error retrieving host domain: {} specify one manually with the '-d' flag".format(e))
if self.args.domain:
self.domain = self.args.domain
if self.args.local_auth:
self.domain = self.hostname
def print_host_info(self):
if self.args.domain:
self.logger.extra['protocol'] = "HTTP"
self.logger.info(self.endpoint)
else:
self.logger.extra['protocol'] = "SMB"
self.logger.info(u"{} (name:{}) (domain:{})".format(self.server_os,
self.hostname,
self.domain))
self.logger.extra['protocol'] = "HTTP"
self.logger.info(self.endpoint)
self.logger.extra['protocol'] = "WINRM"
def create_conn_obj(self):
endpoints = [
'https://{}:{}/wsman'.format(self.host, self.args.port if self.args.port else 5986),
'http://{}:{}/wsman'.format(self.host, self.args.port if self.args.port else 5985)
]
for url in endpoints:
try:
requests.get(url, verify=False, timeout=3)
self.endpoint = url
if self.endpoint.startswith('https://'):
self.port = self.args.port if self.args.port else 5986
else:
self.port = self.args.port if self.args.port else 5985
self.logger.extra['port'] = self.port
return True
except Exception as e:
if 'Max retries exceeded with url' not in str(e):
logging.debug('Error in WinRM create_conn_obj:' + str(e))
return False
def plaintext_login(self, domain, username, password):
try:
from urllib3.connectionpool import log
log.addFilter(SuppressFilter())
self.conn = Client(self.host,
auth='ntlm',
username=u'{}\\{}'.format(domain, username),
password=password,
ssl=False)
# TO DO: right now we're just running the hostname command to make the winrm library auth to the server
# we could just authenticate without running a command :) (probably)
self.conn.execute_ps("hostname")
self.admin_privs = True
self.logger.success(u'{}\\{}:{} {}'.format(self.domain,
username,
password,
highlight('({})'.format(self.config.get('CME', 'pwn3d_label')) if self.admin_privs else '')))
add_user_bh(self.username, self.domain, self.logger, self.config)
if not self.args.continue_on_success:
return True
except Exception as e:
if "with ntlm" in str(e):
self.logger.error(u'{}\\{}:{}'.format(self.domain,
username,
password))
else:
self.logger.error(u'{}\\{}:{} "{}"'.format(self.domain,
username,
password,
e))
return False
def hash_login(self, domain, username, ntlm_hash):
try:
from urllib3.connectionpool import log
log.addFilter(SuppressFilter())
lmhash = '00000000000000000000000000000000:'
nthash = ''
#This checks to see if we didn't provide the LM Hash
if ntlm_hash.find(':') != -1:
lmhash, nthash = ntlm_hash.split(':')
else:
nthash = ntlm_hash
ntlm_hash = lmhash + nthash
self.hash = nthash
if lmhash: self.lmhash = lmhash
if nthash: self.nthash = nthash
self.conn = Client(self.host,
auth='ntlm',
username=u'{}\\{}'.format(domain, username),
password=ntlm_hash,
ssl=False)
# TO DO: right now we're just running the hostname command to make the winrm library auth to the server
# we could just authenticate without running a command :) (probably)
self.conn.execute_ps("hostname")
self.admin_privs = True
self.logger.success(u'{}\\{}:{} {}'.format(self.domain,
username,
self.hash,
highlight('({})'.format(self.config.get('CME', 'pwn3d_label')) if self.admin_privs else '')))
add_user_bh(self.username, self.domain, self.logger, self.config)
if not self.args.continue_on_success:
return True
except Exception as e:
if "with ntlm" in str(e):
self.logger.error(u'{}\\{}:{}'.format(self.domain,
username,
self.hash))
else:
self.logger.error(u'{}\\{}:{} "{}"'.format(self.domain,
username,
self.hash,
e))
return False
def execute(self, payload=None, get_output=False):
try:
r = self.conn.execute_cmd(self.args.execute)
except:
self.logger.debug('Cannot execute cmd command, probably because user is not local admin, but powershell command should be ok !')
r = self.conn.execute_ps(self.args.execute)
self.logger.success('Executed command')
self.logger.highlight(r[0])
def ps_execute(self, payload=None, get_output=False):
r = self.conn.execute_ps(self.args.ps_execute)
self.logger.success('Executed command')
self.logger.highlight(r[0])