Nmap Development mailing list archives
Re: About SSL Support
From: David Fifield <david () bamsoftware com>
Date: Fri, 29 May 2009 15:46:12 -0600
On Fri, May 29, 2009 at 03:28:39PM -0300, Joao Correa wrote:
I´m working on the SSL support for some scripts, making them work correctly under normal TCP connections or under SSL connections. I´ve been facing situations where using connect with TCP flag to estabilish a connection with a SSL service returns true as status, but the connection itself cannot be handled. In the irc-info script, for example, I had to first try connect with SSL flag, if the server does not support SSL it returns false, and so I try connect again with TCP flag. Doing the other way (TCP first and SSL if false) won´t work, since connect with TCP returns true. I have some ideas, but I´m not pretty sure about what is the cause of this problem. Anyway, since I´ve found a way out I think is isn´t a big problem (trying SSL fisrt, and TCP second works pretty fine for all cases). I´ve been wondering If I should work on a new flag for connect, maybe TRYSSL, to enable trying SSL first, and if not possible, trying TCP automatically. I could also try to work on connect function, to return false if the flag is TCP but the service requires SSL.
Another layer of abstraction sounds like a good idea. You could "subclass" the type of object returned by nmap.new_socket. It would default to a plain TCP connect, and essentially just pass on all function calls to the underlying socket object. But if the very first send fails, it would reconnect using SSL and try sending again. If a send fails after that then it will be reported to the caller. You could also give it a hint to start with SSL if you know it from version detection. You could probably implement something like this in pure Lua. Patrick, what do you think of this idea? David Fifield _______________________________________________ Sent through the nmap-dev mailing list http://cgi.insecure.org/mailman/listinfo/nmap-dev Archived at http://SecLists.Org
Current thread:
- About SSL Support Joao Correa (May 29)
- Re: About SSL Support Fyodor (May 29)
- Re: About SSL Support David Fifield (May 29)
- Re: About SSL Support Joao Correa (Jun 06)