What is it? @.@

Here is the place where I record some tactics about wargame, systems, and other security issues.

2014-01-23

OverTheWire - Bandit - Level 18 to Level 19

Description:

Level Goal
The password for the next level is stored in a file readme in the homedirectory. Unfortunately, someone has modified .bashrc to log you out when you log in with SSH.
Commands you may need to solve this level
ssh, ls, cat
Solution:
  1. [Comment] Using SSH to connect the server, however, this time we need to use it with -t option
  2. [Comment] Force pseudo-tty allocation.
  3. sp@simple-plan:~|=> ssh -t bandit18@bandit.labs.overthewire.org /bin/sh
    ...
    bandit18@bandit.labs.overthewire.org's password: kfBf3eYk5BPBRzwjqutbbfE887SVc5Yd
  4. [Comment] Using ls command to list directory contents
  5. $ ls
    readme
  6. [Comment] Using cat command to output file's contents
  7. $ cat readme
    IueksS7Ubh8G3DCwVzrTd8rAVOwq3M5x
  8. [Comment] Using exit command to disconnect connection to server
  9. $ exit
    Connection to bandit.labs.overthewire.org closed.
  10. [Comment] It's done! Saving the password for next level.
Reference:
sshhttp://linuxcommand.org/man_pages/ssh1.html
lshttp://linuxcommand.org/man_pages/ls1.html
cathttp://linuxcommand.org/man_pages/cat1.html
exithttp://linuxcommand.org/man_pages/exit1.html
cdhttp://linuxcommand.org/lc3_man_pages/cdh.html
findhttp://linuxcommand.org/man_pages/find1.html
grephttp://linuxcommand.org/lc3_man_pages/grep1.html
sorthttp://linuxcommand.org/lc3_man_pages/sort1.html
uniqhttp://linuxcommand.org/man_pages/uniq1.html
stringshttp://linuxcommand.org/man_pages/strings1.html
base64http://linux.die.net/man/1/base64
trhttp://linuxcommand.org/man_pages/tr1.html
aliashttp://linuxcommand.org/man_pages/alias1.html
mkdirhttp://linuxcommand.org/man_pages/mkdir1.html
cphttp://linuxcommand.org/man_pages/cp1.html
xxdhttp://linuxcommand.org/man_pages/xxd1.html
filehttp://linuxcommand.org/man_pages/file1.html
mvhttp://linuxcommand.org/man_pages/mv1.html
gziphttp://linuxcommand.org/man_pages/gzip1.html
bzip2http://linuxcommand.org/man_pages/bzip21.html
tarhttp://linuxcommand.org/man_pages/tar1.html
echohttp://linuxcommand.org/man_pages/echo1.html
nchttp://linuxcommand.org/man_pages/nc1.html
opensslhttp://linuxcommand.org/man_pages/openssl1.html
diffhttp://linuxcommand.org/man_pages/diff1.html

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