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Fuzzing isn't really practical if all you do is just generate a totally random bit stream for input. There are many much more clever and robust strategies to hi
by Frizi 8y ago
Fuzzing isn't really practical if all you do is just generate a totally random bit stream for input. There are many much more clever and robust strategies to hit as many edge cases as possible. Check AFL[1] for some details on generating smart random input files. You can also combine that with pretty advanced dynamic execution analysis to fuzz against unknown processor instruction sets, like in sandsifter[2].
[1]: http://lcamtuf.coredump.cx/afl/ http://lcamtuf.coredump.cx/afl/
[2]: https://github.com/xoreaxeaxeax/sandsifter https://github.com/xoreaxeaxeax/sandsifter
- tptacek 8y agoOn the contrary, for years, the most prolific fuzzers basically did just generate random bitstreams, and that technique will still find vulnerabilities in all the memory-unsafe software that hasn't been fished out by those same dumb fuzzers.
- deleted 8y ago[deleted]