WebApp Sec mailing list archives
Re: Recent App Test
From: Bill Pennington <bill.pennington () gmail com>
Date: Thu, 19 Aug 2004 16:13:09 -0700
Look at the source of the page, more than likely the url parameter is being shoved into a frame or iframe and therefore your browser is making the request. One of the main issues with this is that you can spoof content. Like if the site has a login you could dupe that page on your site, point to it with the url parameter, then collect usernames and passwords. Or just put up pictures of Britney Spears, the choose is yours :-) On 18 Aug 2004 08:04:44 -0000, ramatkal () hotmail com <ramatkal () hotmail com> wrote:
During a recent Application pen test I came across a url of the form: http://www.vulnsite.com/cgi-bin/vulnscript.jsp?url=www.website.com&id=12345 I changed the url parameter to something like url=www.google.com and google appeared in my browser. Next, i changed the url to url=www.whatismyip.com, hoping that the ip address of the webserver would be displayed, however, only my ip address was displayed. This means that my browser is loading the url parameter as opposed to the webserver script fethching the url and then displaying it for me in my browser right? Is this a security issue? Assuming that it was the actual webserver script fetching the url parameter and then displaying it for me, I've come up with a few vulnerabilities (listed below) and was hoping that people might like to share some of their ideas. 1) Can use vulnsite as a proxy (& hack other sites) 2) Can port scan using the vuln site by changing url=www.website.com to url=www.sitetoscan.com:port 3) Can connect to & port scan machines behind the firewall. Thanks in adance, Sol
Current thread:
- Recent App Test ramatkal (Aug 19)
- Re: Recent App Test Adam Tuliper (Aug 20)
- Re: Recent App Test Rogan Dawes (Aug 20)
- Re: Recent App Test Bill Pennington (Aug 20)
- Re: Recent App Test Saqib . N . Ali (Aug 20)
- Message not available
- Re: Recent App Test Blake Schneider (Aug 21)
- <Possible follow-ups>
- Re: Recent App Test Amit Klein (Aug 20)
- RE: Recent App Test stevenr (Aug 20)