Dailydave mailing list archives
Re: Does Fuzzing really work?
From: Aviram Jenik <aviram () beyondsecurity com>
Date: Tue, 26 Sep 2006 00:02:17 +0300
On Monday 25 September 2006 23:21, Peter Winter-Smith wrote:
knowing what I do of Dave I suspect was more of a joke/challenge than a definitive statement ;-)
:-)
The research looks very interesting however, in those figures that you gave to what degree do you take account for subsets of data that you are testing (fields within a given portion within a given protocol, and the format of the data that they can accept), etc, and the valid common interesting bad values which can typically be used in such circumstances (i.e data which conforms but has often been known to cause problems - strings of specific lengths, given sets of integer values which often cause problems, etc)?
Well, all of the above! If we just look for 'common bad values' we're not doing much - not much better than running nessus against the application. With beSTORM we take apart the protocol description and try ALL OF IT. So the number of scenarios I mentioned is for every FTP command, and for every scenario we try all string lengths (up to megabytes) in several string formats, and do some optimizations to speed things up. FTP is quick to fuzz, download and see for yourself - I would love to see what you think.
-Peter
Regards, Aviram Jenik Beyond Security (703) 286-7725 x504 http://www.BeyondSecurity.com http://www.SecuriTeam.com Looking for Unknown Vulnerabilities? http://beyondsecurity.com/beSTORM _______________________________________________ Dailydave mailing list Dailydave () lists immunitysec com http://lists.immunitysec.com/mailman/listinfo/dailydave
Current thread:
- Does Fuzzing really work? Aviram Jenik (Sep 25)
- Re: Does Fuzzing really work? Peter Winter-Smith (Sep 25)
- Re: Does Fuzzing really work? Aviram Jenik (Sep 25)
- Re: Does Fuzzing really work? Halvar Flake (Sep 26)
- Re: Does Fuzzing really work? ergosum (Sep 26)
- Re: Does Fuzzing really work? Charlie Miller (Sep 27)
- Re: Does Fuzzing really work? Ian Melven (Sep 27)
- Re: Does Fuzzing really work? ergosum (Sep 27)
- Re: Does Fuzzing really work? Jared DeMott (Sep 27)
- Re: Does Fuzzing really work? Martin Vuagnoux (Sep 28)
- Re: Does Fuzzing really work? Jared DeMott (Sep 28)
- Re: Does Fuzzing really work? Matt Hargett (Sep 28)
- Re: Does Fuzzing really work? Jared DeMott (Sep 29)
- Re: Does Fuzzing really work? Aviram Jenik (Sep 25)
- Re: Does Fuzzing really work? Peter Winter-Smith (Sep 25)