commit b79f41c7bb49de00367b88be90d20dfa6fa7e12f
parent 21c132719de02ba86debc6b7f28bf1c9abd58375
Author: therealFIGBERT <figbertwelner@gmail.com>
Date: Fri, 11 Oct 2019 08:46:06 -0700
Implementing pass repeat catch system
Diffstat:
| M | third_flag.py | | | 50 | +++++++++++++++++++++++++++----------------------- |
1 file changed, 27 insertions(+), 23 deletions(-)
diff --git a/third_flag.py b/third_flag.py
@@ -23,31 +23,38 @@ def passgen(low: str, high: str) -> str:
cracked = False
len_limit = False
+first = True
attempt = 1
LO = "aaaaaaaaaaaaaaaaaaaa"
HI = "zzzzzzzzzzzzzzzzzzzz"
password = passgen(LO, HI)
conn = remote("twinpeaks.cs.ucdavis.edu", 30004)
print(conn.recv())
-while not len_limit and not cracked:
- conn.sendline(password)
- print("Attempt {}:\nPass sent as:\n{}\nCurrent low:\n{}\nCurrent high:\n{}\n".format(attempt, password, LO, HI))
- attempt += 1
- response = conn.recvline_contains(b"strcmp")
- print("Server response:\n{}\n".format(response))
- previous_pass = password
- if b" -1 " in response:
- LO = password
- password = passgen(LO, HI)
- elif b" 1 " in response:
- HI = password
- password = passgen(LO, HI)
+while not cracked:
+ if first:
+ conn.sendline(password)
+ attempt += 1
+ print("Attempt {}:\nPass sent as:\n{}\nCurrent low:\n{}\nCurrent high:\n{}\n".format(attempt, password, LO, HI))
+ first = False
else:
- print("Password cracked as: {}".format(password))
- cracked = True
- conn.interactive()
- if password is previous_pass:
- len_limit = True
+ response = conn.recvline_contains(b"strcmp")
+ previous_pass = password
+ if b" -1 " in response:
+ LO = password
+ password = passgen(LO, HI)
+ elif b" 1 " in response:
+ HI = password
+ password = passgen(LO, HI)
+ else:
+ print("Password cracked as: {}".format(password))
+ cracked = True
+ conn.interactive()
+ if password == previous_pass:
+ break
+ print("Server response:\n{}\n".format(response))
+ conn.sendline(password)
+ print("Attempt {}:\nPass sent as:\n{}\nPrevious Pass: {}\nCurrent low:\n{}\nCurrent high:\n{}\n".format(attempt, previous_pass, password, LO, HI))
+ attempt += 1
start_pos = 0
for b in range(len(LO)):
if LO[b] is HI[b]:
@@ -55,7 +62,4 @@ for b in range(len(LO)):
else:
break
pass_buffer = password[:start_pos]
-pass_end = password[start_pos:]
-print(password)
-print(pass_buffer)
-print(pass_end)
-\ No newline at end of file
+pass_end = password[start_pos:]
+\ No newline at end of file
