ucdavis-ecs189m

[RADIOACTIVE] python exploits for uc davis class ecs189m
git clone git://git.figbert.com/ucdavis-ecs189m.git
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addition.py (843B)

      1 # A CTF exploit by FIGBERT
      2 # for UC Davis class ECS189M
      3 # twinpeaks.cs.ucdavis.net:30001
      4 # Category: Linux and miscellaneous
      5 # Challenge: addition
      6 # 04/01/2020
      7 from pwn import *
      8 
      9 # Connecting to the server
     10 connection = remote("twinpeaks.cs.ucdavis.edu", 30001)
     11 for i in range(0,50):
     12     # Recieving the equation
     13     equation = connection.recvline_contains("Question")
     14     # Splitting the equation into the two numbers to add
     15     numbers = [int(item.strip()) for item in ((equation.split(b":")[1]).strip()).split(b"+")]
     16     num_one = numbers[0]
     17     num_two = numbers[1]
     18     # Adding the two numbers
     19     num_sum = sum(numbers)
     20     print("Equation %d: %d + %d = %d"%(i+1, num_one, num_two, num_sum))
     21     connection.recv()
     22     # Sending the password
     23     connection.sendline(bytes("%d"%num_sum, "utf-8"))
     24 connection.recv()
     25 connection.interactive()