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I'm trying to do a PoC with Atheris, and I started to fuzz a endpoint in my api:

api/v2/pokemon/<fuzz>

Am I testing something useful with this? Or should I only use fuzz inputs in HTTP body?

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  • What does the <fuzz> part of the URL do ? Hitting random URLs is one way of fuzzing a system
    – Rsf
    Jan 27, 2021 at 12:38
  • In this case, it can retrieve an item from this entity. Goal is to see if the api handles unknown entities as 404, not 500 Jan 27, 2021 at 12:44
  • If the goal is to just verify 404 on unknown, that doesn't sound like a good candidate for fuzzing. Just using a random path param once seems sufficient, no need to do it over and over . . .
    – ernie
    Jan 27, 2021 at 17:32
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    Unless those paths include special characters, long strings etc. a fuzzer can do that for you given enough run time
    – Rsf
    Jan 28, 2021 at 8:51

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