Ipswitch FTP XSS leads to FTP server compromise. The Vendor has been notified, and given the PoC.
The WS_FTP administration interface (IIS web application written in ASP) has a view log option. When logs are viewed, it is possible to steal the administrator cookie, or even better, DIRECTLY create a new user (or admin) account for FTP server.
We've created a little PoC that will create a new system administrator account when the admin view logs. The PoC is simple and injects an <iframe> that leads to another html file that creates the new account.
John Harwold, VDA Labs, LLC
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