About
The flag06 account credentials came from a legacy unix system.
Nebula
思路
题目提示“legacy unix system”，即可破用户密码。
cat /etc/passwd | grep flag06得到
sudo apt install john
vim flag06passflag06:ueqwOCnSGdsuM:993:993::/home/flag06:/bin/shjohn flag06pass得到flag06的密码明文hello
su - flag06
hello
cat flag