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The DigiTrust Group: Advisory #071228a - eTicket Persistent Cross-Site Scripting Vulnerability
Product:
eTicket v1.5.6-RC3
eTicket v1.5.6-RC2
eTicket v1.5.5.2
Older versions of eTicket are likely affected as well
Credits:
Omer Singer
The DigiTrust Group
http://www.digitrustgroup.com
January 3, 2008
Risk Level:
HIGH - Vulnerability can be exploited to execute arbitrary HTML and script code in a user's browser session in the context of an affected site. The elevated risk rating reflects the persistent nature of this cross-site scripting attack.
Program Summary:
eTicket is a PHP-based online support ticket system that can receive tickets via e-mail or a web form. In many implementations, no authentication is required for ticket creation.
http://eticket.sourceforge.net/
Cross-Site Scripting Vulnerability:
Input passed to the 'name' and 'subject' parameters in newticket.php is not properly sanitized. When a web site administrator logs into the system, ticket names and subjects are displayed and malicious code contained therein may be executed. Possible attacks include stealing cookies, embedding malicious media files, or redirecting the victim to a malicious web site.
Sample Exploit Code:
For RC3: Create a ticket with the subject <SCRIPT>a=/XSS/;alert(a.source)</SCRIPT>
For RC2: Create a ticket with the subject <script>alert(123)</script>
For stable v1.5.5.2: Create a ticket with the subject <iframe src=http://www.digitrustgroup.com/advisories/popup.html <
Vendor Solution:
Fixed in version 1.5.6-RC4. Filter malicious characters and character sequences in a web proxy.
Copyright (c) 2007 The DigiTrust Group.
Permission is granted for the redistribution of this alert electronically. It may not be edited in any way without the express written consent of The DigiTrust Group.
Disclaimer: The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use on an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information.
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