Re: nse crypto

[Patrik Karlsson <patrik () cqure net>]

Den 2011-03-12 16.56 skrev Toni Ruottu <toni.ruottu () iki fi>:

> Here is a new version that uses the brute library. I did not notice
> any speed ups, but using the library seems a good idea anyway, as it
> makes this work similarly to other scripts.
>
> Should the library replace an empty password with <empty> when it is
> reporting results? I though I should not do that, as the library could
> define a standard way for doing such things.

The library should replace an empty password with <empty>. In case it
doesn't this is a bug.
I don't have a nping server setup myself to test this though.
I've tested the script against the IP below and it works for me.
I get roughly one try per second.

> On Fri, Mar 11, 2011 at 10:25 PM, David Fifield <david () bamsoftware com>
> wrote:
> > On Fri, Mar 11, 2011 at 02:29:39AM +0200, Toni Ruottu wrote:
> > > I got the script written using openssl. In the end the crypto was
> > > surprisingly manageable, compared to dealing with IPv6 addresses. :-)
> > >
> > > I have attached the script to this email. I am running an instance of
> > > nping echo server with password 12345 at 174.129.239.201 Feel free to
> > > test the script against it by commanding
> > >
> > > nmap 174.129.239.201 -p 9929 --script=nping-brute
> > >
> > > Trying out passwords is somewhat slow, so testing with really easy
> > > ones may be a good idea. Add -d -d to the command line to see
> > > progress.
> >
> > I tried it. It found the correct password after three guesses in 6
> > seconds. It seems to do about 1 guess per second on another server.
> >
> > I think the way to speed it up is to use the brute.lua library. See
> > Patrik Karlsson's brute scripts for examples of using it.
> >
> > David Fifield
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//Patrik


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