VideoDB 3.1.0 – SQL Injection

• Exploit Database
• 15 阅读

• 作者： seceurityoverun
  日期： 2011-08-13
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/17660/

• DORK:allinurl:borrow.php?diskid=
  DORK:allintitle:videodb
  
  # Vendor: http://www.videodb.net/blog/
  
   $ -----------#
   | S3C0VERUN|
   & ------------@
  
  along with this i was able in some sites to determine that you can overwrite the databse contents and also if you look in the source you se there password the server name and the dbuser htis is a problem because most likely the site could be taken over
  due to the fact the admin doesnt usually change passwords on the same box
  
  
  vulnerable software is videodb
  
  this is an information disclosure vulnerability it appears most sites running this are vulnerable and have the same database structure im not sure if this is an old version or if it is 
  completely vulnerable im downloading the new version now from source 
  
  
  
  <?php
  /**
   * Borrow Manager
   *
   * Handles lending of disks
   *
   * @package videoDB
   * @authorAndreas Gohr <a.gohr@web.de>
   * @version $Id: borrow.php,v 2.20 2008/05/12 13:01:12 andig2 Exp $
   */
  
  require_once './core/functions.php';
  require_once './core/output.php';
  
  // check for localnet
  localnet_or_die();
  
  // permission check
  permission_or_die(PERM_WRITE, PERM_ANY); 
  
  // borrowmanagement for single disk
  $editable = false;
  if (!empty($diskid))
  {
  if (check_permission(PERM_WRITE, get_owner_id($diskid,true)))
  	{
  		$editable = true;
  		if ($return) {
  $SQL= "DELETE FROM ".TBL_LENT." WHERE diskid = '".addslashes($diskid)."'";
  runSQL($SQL);
  		}
  		if (!empty($who)) {
  			$who = addslashes($who);
  $SQL= "INSERT INTO ".TBL_LENT." SET who = '".addslashes($who)."', diskid = '".addslashes($diskid)."'";
  runSQL($SQL);
  		}
  
  $SQL= "SELECT who, DATE_FORMAT(dt,'%d.%m.%Y') AS dt 
   FROM ".TBL_LENT." 
  WHERE diskid = '".addslashes($diskid)."'";
  $result = runSQL($SQL);
  		
  		$who = $result[0]['who'];
  		$dt= $result[0]['dt'];
  	}
  }
  
  $WHERES = '';
  
  if ($config['multiuser']) 
  {
  // get owner from session- or use current user
  session_default('owner', get_username(get_current_user_id()));
  
  // build html select box
  $all = strtoupper($lang['radio_all']);
  $smarty->assign('owners', out_owners(array($all => $all), PERM_READ));
  $smarty->assign('owner', $owner);
  
  // if we don't have read all permissions, limit visibility using cross-user permissions
  if (!check_permission(PERM_READ))
  {
  $JOINS = ' LEFT JOIN '.TBL_PERMISSIONS.' ON '.TBL_DATA.'.owner_id = '.TBL_PERMISSIONS.'.to_uid';
  $WHERES .= ' AND '.TBL_PERMISSIONS.'.from_uid = '.get_current_user_id().' AND '.TBL_PERMISSIONS.'.permissions & '.PERM_READ.' != 0';
  }
  
  // further limit to single owner
  if ($owner != $all) $WHERES .= " AND ".TBL_USERS.".name = '".addslashes($owner)."'";
  }
  
  // overview on lent disks
  $SQL= "SELECT who, DATE_FORMAT(dt,'%d.%m.%Y') as dt, ".TBL_LENT.".diskid,
  CASE WHEN subtitle = '' THEN title ELSE CONCAT(title,' - ',subtitle) END AS title,
  ".TBL_DATA.".id, COUNT(".TBL_LENT.".diskid) AS count, ".TBL_USERS.".name AS owner
   FROM ".TBL_LENT.", ".TBL_DATA."
  LEFT JOIN ".TBL_USERS." ON owner_id = ".TBL_USERS.".id
   $JOINS
  WHERE ".TBL_LENT.".diskid = ".TBL_DATA.".diskid 
  $WHERES
   GROUP BY ".TBL_LENT.".diskid
   ORDER BY who, ".TBL_LENT.".diskid";
  $result = runSQL($SQL);
  
  // check permissions
  for($i=0; $i < count($result); $i++)
  {
  $result[$i]['editable'] = check_permission(PERM_WRITE, get_userid($result[$i]['owner']));
  }
  
  // prepare templates
  tpl_page();
  
  $smarty->assign('diskid', $diskid);
  $smarty->assign('who', $who);
  $smarty->assign('dt',$dt);
  $smarty->assign('editable', $editable);
  $smarty->assign('borrowlist', $result);
  
  // display templates
  tpl_display('borrow.tpl');
  
  ?>
  
  ADDSLASHES IS THE PROBLEM I ASSUME IT COULD BE MUCH WORSE IF HE MADE THIS MISTAKE I URGE YOU ALL TOO LOOK INTO THE CODE
  
  
  the problem here is the fact he is using addslashes that can be bypassed with a valid multi byteending in 0x5c describd in chris Shiflett'sarticle 
  
  if i must say this could be either good or bad thing is it just throws an error the injection is possible on all of these
  nnow what are we to do this could be huge or small depending on if it is used widely or justsmall based but this is the new code from sourceforge 
  
  
  i believe this to b the script that caused the issue most of the sites including the makers demo use borrowfew others changed