Anyone else seen this? Just a reference to a cross-site scripting attack, but I thought it interesting that it was posted as a vulnerability with the fusebox framework as opposed to poor code implementation by the application programmer.
----- Original Message ----- From: "N.N.P" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Wednesday, August 03, 2005 4:19 AM Subject: Coldfusion Fusebox V4.1.0 Vulnerability This was discovered by myself over the weekend. I cant find out what versions of fusebox this vulnerability is in but seeing as it affects the main fusebox page I can only assume it is the latest v4.1.0 and possibly some older versions. According to the Fusebox site, What is Fusebox? Fusebox is a standard framework for building web-based applications. Basically the "fusebox" takes all requests for actions such as searching, login etc etc on a site and passes it off to the relevant script (check out their site for more info). Normally you see something like [code] http://www.fusebox.org/index.cfm?fuseaction=fusebox.overview[/code] Basically this vulnerability allows the execution of JS. For example http://www.site.org/index.cfm?fuseaction=";><script>document.location="http://silentcode.net";</script> Im sure if anyone feels like screwing around with it im sure you'll find some other interesting problems with it, the thing is like swiss cheese ; ) Comments and critisisms are welcome. Comments: Some sites using fusebox are not vulnerable. It appears to be possible to set a standard page for errors and some filter out the script tags. Also some will work with redirects and normal alert boxes but will filter out document.cookie. In cases like these it often proves useful to leave in the actual fuseaction. This helps avoid the error in some cases. e.g http://www.site.org/index.cfm?fuseaction=fusebox.overview";><script>alert(document.cookie)</script>< Usage: The main usage of this vulnerability would be cookie stealing. This is achieved by redirecting the user to a php script on a site you control with the users cookie as a parameter to the script. Then to avoid raising suspicions redirect them back to the page they thought they were accessing. Google "cookie stealing" for more info. Fix: Filtering all input to the fusebox correctly should solve this. As well as that setting it to surpress errors and having a default error page should also help. Googling for allinurl:/index.cfm?fuseaction= will give you an idea of how many sites are possibly vulnerable. Enjoy, NNP As a side note, if the server isnt set to surpress errors you can get some interesting info such as full path disclosure etc by passing in special characters such as ? e.g https://site.com/index.cfm?fuseaction=? If you want to see an example of what i mean have a look on http://silentcode.net/community I've posted a vulnerable site there. -- http://silentcode.net From: Ian Mitchell <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED] To: [email protected] Date: Aug 3, 2005 1:12 PM Subject: Re: Coldfusion Fusebox V4.1.0 Vulnerability Reply | Reply to all | Forward | Print | Add sender to Contacts list | Trash this message | Report phishing | Show original Having been a modified fusebox developer for a while I can say that there are likely MANY more problems besides that, such as SQL injection and XSS issues that still need to be resolved in many Fusebox apps. We addressed them by creating a standard parse function in the index.cfm file that prevented any sub fuses from being affected. However since I was under contract I can't provide said code, sorry. But I highly advise a security module that does basic sanity checks, authentication validation, tests for session hijacks/fixations, and other funny business that gets thrown at the fusebox. This security module or fuse needs to be called first and formost before ANY other fuses get called and should be accessed directly from the index.cfm file before anything else happens. Coldfusion itself doesn't do much for sanity checks, it's up to the developer to take those into consideration. What I found interesting was that the first 10 entries returned from the google search were Senator's... interesting. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Discover CFTicket - The leading ColdFusion Help Desk and Trouble Ticket application http://www.houseoffusion.com/banners/view.cfm?bannerid=48 Message: http://www.houseoffusion.com/lists.cfm/link=i:4:214175 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
