~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Software: NextPlace.com E-Commerce ASP Engine Vendor: http://www.nextplace.com/ Versions: Single version was created Bug: Cross Site Scripting Risk: Medium ( E-Commerce makes this irregular) Exploitation: Remote with browser Date: 24 Jan 2004 Author: Rafel Ivgi, The-Insider E-Mail: firstname.lastname@example.org Web: http://theinsider.deep-ice.com ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1) Introduction 2) Bug 3) The Code ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ =============== 1) Introduction =============== NextPlace.com is E-Commerce service provider. E-Commerce ASP Engine this cannot have risks such as Cross Site Scripting. It is Ridiculous that i discovered this because each one of this site is under the protection of many security companies and are marked as "safe". Any attacker can fake messages, and betray the trust of all the people who belive that links involved with this website are safe. *** The Vulnerabillity described in this advisory effects all NextPlace's Clients :http://www.nextplace.com/clients.asp *** This means
= anyone of NextPlace clients. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ====== 2) Bug ====== The Vulnerabillity is Cross Site Scripting. If an attacker will request the one following urls from the server: Examples: 1. http:// /productdetail.asp?level=aaaaaaaaaaaaaaaa&catid=52&productid=24 8 2. &c">http:// /productdetail.asp?level=">&catid= 52&productid=248 3. http:// /ListCategories.asp?level=58&catid=AAAAAAAAAAAAAAAAAA 4. ] - XSS XSS appears and the server allows an attacker to inject & execute scripts. In the words of securityfocus.com : ~~~~~~~~~~~~~~~~~~~~~~~~~~ If all of these circumstances are met, an attacker may be able to exploit this issue via a malicious link containing arbitrary HTML and script code as part of the hostname. When the malicious link is clicked by an unsuspecting user, the attacker-supplied HTML and script code will be executed by their web client. This will occur because the server will echo back the malicious hostname supplied in the client's request, without sufficiently escaping HTML and script code. Attacks of this nature may make it possible for attackers to manipulate web content or to steal cookie-based authentication credentials. It may be possible to take arbitrary actions as the victim user. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ =========== 3) The Code =========== 1. http:// /productdetail.asp?level=aaaaaaaaaaaaaaaa&catid=52&productid=24 8 2. &c">http:// /productdetail.asp?level=">&catid= 52&productid=248 3. http:// /ListCategories.asp?level=58&catid=AAAAAAAAAAAAAAAAAA 4. ] - XSS XSS appears and the server allows an attacker to inject & execute scripts. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ --- Rafel Ivgi, The-Insider http://theinsider.deep-ice.com "Things that are unlikeable, are NOT impossible."