Full Disclosure mailing list archives
Re: Interesting idea for a covert channel or I justdidn't research enough?
From: Thierry Zoller <Thierry () sniff-em com>
Date: Sat, 8 Oct 2005 15:27:51 +0200
Dear Aditya Deshmukh, AD> Aren't these all different versions of portknocking ? All of AD> them work untill someone outside can figure out the pattern of AD> events - at most I would call this security by obscurity - Leveraged to real portknocking, i.e "encrypted payloads" (time based) in different SYN, FYN, etc packets to different ports, you can't easily get the pattern. Thus it leverages the "protection" over a level that can be seen as security though obscurity. That said you competely ignore that the Port 22 if open is not a security hole itself. By hiding it you protect yourself from "possible" threads. AD> Trivial to detect but good enough for some low security AD> requirements Proof it. -- Thierry Zoller mailto:Thierry () sniff-em com _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- Re: Interesting idea for a covert channel or I just didn't research enough?, (continued)
- Re: Interesting idea for a covert channel or I just didn't research enough? Bernhard Mueller (Oct 06)
- Re: Interesting idea for a covert channel or I just didn't research enough? Mario 'BitKoenig' Holbe (Oct 06)
- Re: Interesting idea for a covert channel or I just didn't research enough? Michael Holstein (Oct 06)
- Re: Interesting idea for a covert channel or I just didn't research enough? Kevin Wilcox (Oct 06)
- Re: Interesting idea for a covert channel or I just didn't research enough? mudge (Oct 06)
- Re: Interesting idea for a covert channel or I just didn't research enough? Jurjen Oskam (Oct 06)
- RE: Interesting idea for a covert channel or I justdidn't research enough? Aditya Deshmukh (Oct 07)
- Re: Interesting idea for a covert channel or I justdidn't research enough? Thierry Zoller (Oct 08)
- Re: Interesting idea for a covert channel or I justdidn't research enough? Jurjen Oskam (Oct 08)
- RE: Interesting idea for a covert channel or I justdidn't research enough? Aditya Deshmukh (Oct 07)
- Re: Interesting idea for a covert channel or I just didn't research enough? Michael Holstein (Oct 06)
- Re: Interesting idea for a covert channel or I just didn't research enough? Frank Knobbe (Oct 06)
- Re: Interesting idea for a covert channel or I just didn't research enough? Bill Weiss (Oct 06)
- Re: Interesting idea for a covert channel or I just didn't research enough? Frank Knobbe (Oct 06)