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Cctde - Covert Channel and Tunneling Over the HTTP Protocol Detection
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SUMMARY
DETAILS
Cctde is a first implementation of the Gray-World.net
<http://gray-world.net/projects/papers/html/cctde.html> Covert Channel and
Tunneling over the HTTP protocol Detection : GW implementation theoretical
design' paper.
The main goal of this project is to provide a way to register and disclose
informations leading to the detection of unauthorized tunnels and covert
channels embedded into the HTTP protocol but the concepts could also be
applied to the detection of arbitrary data flows inside other high level
protocols.
Located between a mandatory HTTP proxy server and the HTTP clients (or
before the NACS if no proxy exists), cctde is trying to detect if someone
on the internal located network is using a CC|T (Covert Channel OR
Tunneling) tool to bypass the NACS.
Located in front of corporate servers in DMZ, cctde is trying to detect if
someone located on the Internet is using server side tools such as
<http://gray-world.net/pr_wsh.shtml> WebShell or
<http://gray-world.net/pr_firepass.shtml> Firepass to run across the NACS
boundaries.
Cctde is currently designed as an analysis back-end for the
<http://www.snort.org/> Snort NIDS tool. Snort acts as a network sensor -
recording data streams or not in tcpdump format binary files - and
communicates with the cctde part using an Unix socket. Cctde then reads
Snort alerts and pcap packets from the Unix socket and store them into
memory. It is then possible to correlate recorded data in order to detect
specific network activities.
Download Information:
The tool can be obtained from:
<http://gray-world.net/projects/cctde/cctde-0.2.tar.gz>
http://gray-world.net/projects/cctde/cctde-0.2.tar.gz
ADDITIONAL INFORMATION
To keep updated with the tool visit the project's homepage at:
<http://gray-world.net/pr_cctde.shtml>
http://gray-world.net/pr_cctde.shtml
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