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Re: [PEN-TEST] Forge name-query?
From: Mordechai Ovits <movits () OVITS NET>
Date: Sun, 26 Nov 2000 15:52:07 -0500

On Mon, Nov 20, 2000 at 09:52:33PM -0500, Dug Song wrote:
On Mon, Nov 20, 2000 at 07:47:52AM -0800, jarel () NIGHTMAIL COM wrote:

In theory you're able to make a program that listans after a
name-query for a special address and when it comes you're racing
the real DNS and tries to give the client an other ip-address than
the real one... Does anyone know of such a program?

I succeeded to get people to use SSH instead of telnet after
showing them what I could do with Hunt.

wait a bit for the next release of dsniff, which includes

dnsspoof
        forge replies to arbitrary DNS address / pointer queries on
        the LAN. this is useful in bypassing hostname-based access
        controls, or in implementing a variety of man-in-the-middle
        attacks (HTTP, HTTPS, SSH, Kerberos, etc).

sshmitm
        proxy and sniff SSH traffic redirected by dnsspoof(8),
      capturing SSH password logins.

Won't the user get a warning about host not matching the key in known_hosts?


webmitm
        proxy and sniff HTTP / HTTPS traffic redirected by dnsspoof(8),
        capturing most "secure" SSL-encrypted webmail logins and form
        submissions.

Won't the browser pop up an error about the certificate not matching the
site?  Or not signed by a known CA?

among other things...


Cool, what else?

-d.

---
http://www.monkey.org/~dugsong/



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