number starting with "0"

[westpharmatrihar]

I'm familiar with fuzzers on cats, and use it quite often. But recently, after checking some number validation on my back-end server, I found out one potential fuzzer that could be added

It is to generate in a body field that requires number :

• value starting with "0" followed by random number (which must not be accepted and return 4XX)
  So basically, this new Fuzzer would be a mix of : ZeroIntegerBody and RandomPositiveIntegerBody as it generates in number field a concatenation :
  "0" + a_random_single_digit

example :
running this fuzzer in POST /test will be something like :
{"my_field": 01}

when my_field is declared in swagger as object field

type: object
    properties:
      my_field:
        description: a field
        type: integer

Of course, the last single digit cannot be lower than minimum if defined in swagger, and higher than maximum if defined in swagger.

Thanks
ps: I didn't look closely the code, I hope this kind of fuzzer is easy to generate

[en-milie]

HI @westpharmatrihar. Yes, it makes sense. I'll think about some fuzzers with this scenario.

[westpharmatrihar]

glad to hear that , thanks