Re: American Fuzzy Lop - Menagerie Minimization

[Bálint Réczey <balint () balintreczey hu>]

2015-01-25 15:41 GMT+01:00 Evan Huus <eapache () gmail com>:
> Gerald and I have (independently) started playing with the American
> Fuzzy Lop fuzzer recently [1] as a possibly more intelligent
> alternative or complement to our current fuzzing set-up.
>
> It includes a tool afl-cmin that uses its instrumentation to find
> "unnecessary" files in a set of inputs (i.e. files that don't exercise
> any new paths compared to the rest of the inputs). As an experiment, I
> ran this tool against "tshark -nr" on our currently available public
> menagerie folder and it cut it about in half.
>
> Before: 5726 files, 1.8G
> After: 2423 files, 764M
>
> I suspect with "tshark -nxVr" there are more paths and fewer
> duplicates (and it would also take a lot longer to run the script) but
> it may be worth investigating regardless. If anybody else is curious
> about the results I've made the minimized file list available at [2].
Cool, great job! :-)

> Cheers,
> Evan
>
> [1] http://lcamtuf.coredump.cx/afl/
> [2] https://dl.dropboxusercontent.com/u/171647/mini-menagerie
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