pyjailgolf_1

Challenge description: “You have 10 characters to get the flag. Have fun!”

Source code of the server:

line = input('>>> ')

flag="[REDACTED]"

if len(line) > 10:
		raise Exception()

try:
		eval(line)
except:
		pass

Obviously, print(flag) is too long being 11 characters long.

While this challenge had us stumped for a while, we quickly found out that another python builtin was able to print things in a shorter way:

help(flag)

was the solution for this first python jail:

pctf{JusT_a5k_4_h3lP!}