[TOOL] DJohn - Distributed John
From: SecuriTeam (support_at_securiteam.com)
Date: 11/19/03
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To: list@securiteam.com Date: 19 Nov 2003 18:54:10 +0200
The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
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DJohn - Distributed John
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DETAILS
With Distributed John (DJohn) you can crack passwords using several
machines to get passwords sooner than using a single machine. The cracking
in itself is done by John The Ripper and djohn's server (djohnd) divides
the work in work packets and coordinates the effort among the clients
(djohn), which are the ones who do the work.
Because the way djohn was written there are several features/drawbacks on
which you might be interested:
* Only brute force cracking can be used; as the way to crack passwords is
with an external mode (read John's documentation for more information on
John's cracking modes)
* There is no support to download the passwords files to be cracked by
the clients. They must be downloaded by someone else (the user, another
process). Starting in v0.9.8, there is a contributed server / client in
Perl to do this task
* DJohn was designed to run in closed networks where all the clients can
be trusted, so security was not an issue
* All the clients are supposed to have the same (or similar) CPU power
(this point will be addressed soon)
The server status can be viewed using the utility djs (djohn status) and a
CGI front-end is provided to remotely view to server status (djs can only
be used in the machine the server is running as it uses shared memory to
get the status).
ADDITIONAL INFORMATION
The tool can be downloaded from: <http://ktulu.com.ar/en/djohn.php>
http://ktulu.com.ar/en/djohn.php.
The information has been provided by <mailto:webmaster@ktulu.com.ar> Luis
Parravicini.
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