Question

当我从我的linux终端运行此命令时：

 ssh -p 12643 sudoku@ringzer0team.com

并输入密码dg43zz6R0E，我收到此消息：

Linux ld64webdmz 3.2.0-4-amd64 #1 SMP Debian 3.2.82-1 x86_64
Last login: Fri Sep 22 09:19:02 2017 from 39.188.121.75
RingZer0 Team Online CTF
The sudoku challenge

+---+---+---+---+---+---+---+---+---+
|   | 4 | 8 |   |   | 1 | 3 | 5 | 2 |
+---+---+---+---+---+---+---+---+---+
| 6 | 7 |   |   | 5 |   |   | 4 |   |
+---+---+---+---+---+---+---+---+---+
|   |   |   |   | 4 | 8 | 6 | 7 |   |
+---+---+---+---+---+---+---+---+---+
| 4 |   |   |   | 1 | 3 | 5 | 2 | 9 |
+---+---+---+---+---+---+---+---+---+
|   |   | 3 | 5 | 2 |   |   |   | 6 |
+---+---+---+---+---+---+---+---+---+
|   |   | 9 |   |   | 6 |   | 1 |   |
+---+---+---+---+---+---+---+---+---+
|   |   |   |   |   |   |   |   | 4 |
+---+---+---+---+---+---+---+---+---+
|   |   |   | 2 |   |   |   |   |   |
+---+---+---+---+---+---+---+---+---+
| 2 |   |   |   |   |   | 1 |   |   |
+---+---+---+---+---+---+---+---+---+


Solve this sudoku in less than 10 seconds and you'll get the flag.
Submit all the sudoku table using this format from left to right 1,2,3,4,5,6,7,8,9,2,3,4,5,6,7,8,9,1...

Solution:

使用Ruby的Net-SSH，如何获取该登录消息并发送响应？这就是我所拥有的：

#!/usr/bin/ruby

require'net/ssh';

Net::SSH.start('ringzer0team.com', 'sudoku', :password => 'dg43zz6R0E', :port => 12643) do|ssh|
    # read that on_login text, solve and send output
    p ssh.exec!(((1..9).to_a*9).join(',')+"\n"); # trying to send data
end

它没有终止（没有超过对exec的调用！）。

我只是询问如何与会话进行交互（获取和发送数据），而不是如何解决数独。

Ruby Net-SSH获取登录文本并发送数据

0 个答案: