題目如下：
The flag06 account credentials came from a legacy unix system.
To do this level, log in as the level06 account with the password level06. Files for this level can be found in /home/flag06.
查看/etc/passwd文件中flag06項：
flag06:ueqwOCnSGdsuM:993:993::/home/flag06:/bin/sh
在kali下使用john破解密碼：
echo -e 'flag06:ueqwOCnSGdsuM:993:993::/home/flag06:/bin/sh' > pass
john pass最後得到flag06用戶密碼爲hello，登陸即可。