[vortex.overthewire.org] level0

#!/usr/bin/env python
from socket import *
from struct import *

p    = lambda x : pack("<L", x)
up   = lambda x : unpack("<L", x)[0]

s = socket(AF_INET, SOCK_STREAM)
s.connect(("vortex.labs.overthewire.org", 5842))

u_int  = [1,2,3,4]
result = 0

print "[*] Connect to vortex.labs.overthewire.org"

for i in range(0, 4):
    u_int[i] = up(s.recv(4))
    print "[%d] u_int[%d] = %d" % (i+1, i, u_int[i])
    result += u_int[i]

print result
s.send(p(result))
print s.recv(1024)

result가 unsigned int의 최댓값을 넘어가면 오류가 남.

그래서 몇번 시도해야 함.

[*] Connect to vortex.labs.overthewire.org

[1] u_int[0] = 340798714

[2] u_int[1] = 1536290103

[3] u_int[2] = 635342479

[4] u_int[3] = 1643022390

4155453686

Username: vortex1 Password: 블라인드