import re
class MysteryRunner(Runner):
def run(self, inp):
x = inp.find(chr(0o17 + 0o31))
y = inp.find(chr(0o27 + 0o22))
if x >= 0 and y >= 0 and x < y:
return (inp, Runner.FAIL)
else:
return (inp, Runner.PASS)
if __name__ == "__main__":
mystery = MysteryRunner()
random_fuzzer = RandomFuzzer()
while True:
inp = random_fuzzer.fuzz()
result, outcome = mystery.run(inp)
if outcome == mystery.FAIL:
break
if __name__ == "__main__":
failing_input = result
failing_input
# ## Manual Input Reduction
if __name__ == "__main__":
print('\n## Manual Input Reduction')
parser = HTMLParser(
) # resets the HTMLParser object for every fuzz input
parser.feed(inp)
if __name__ == "__main__":
# create random fuzzer
fuzzer = RandomFuzzer(min_length=1,
max_length=100,
char_start=32,
char_range=94)
# create population of fuzz inputs
population = []
for i in range(trials):
population.append(fuzzer.fuzz())
# execute and measure trace coverage
trace_timeseries = population_trace_coverage(population, my_parser)[1]
# execute and measure code coverage
code_timeseries = population_coverage(population, my_parser)[1]
# plot trace coverage over time
plt.figure(num=None, figsize=(12, 4), dpi=80, facecolor='w', edgecolor='k')
plt.subplot(1, 2, 1)
plt.plot(trace_timeseries)
plt.xlabel('# of fuzz inputs')
plt.ylabel('# of traces exercised')
plt.title('Trace Coverage Over Time')