diff --git a/modules/post/windows/gather/enum_ad_managedby_groups.rb b/modules/post/windows/gather/enum_ad_managedby_groups.rb new file mode 100644 index 0000000000..72959f6086 --- /dev/null +++ b/modules/post/windows/gather/enum_ad_managedby_groups.rb @@ -0,0 +1,111 @@ +## +# This module requires Metasploit: http://metasploit.com/download +# Current source: https://github.com/rapid7/metasploit-framework +## + +require 'rex' +require 'msf/core' + +class Metasploit3 < Msf::Post + include Msf::Auxiliary::Report + include Msf::Post::Windows::LDAP + + USER_FIELDS = ['cn', + 'distinguishedname', + 'managedBy', + 'description'].freeze + + def initialize(info = {}) + super(update_info( + info, + 'Name' => 'Windows Gather Active Directory Managed Groups', + 'Description' => %{ + This module will enumerate AD groups on the specified domain which are specifically managed. + It cannot at the moment identify whether the 'Manager can update membership list' option + option set; if so, it would allow that member to update the contents of that group. This + could either be used as a persistence mechanism (for example, set your user as the 'Domain + Admins' group manager) or could be used to detect privilege escalation opportunities + without having domain admin privileges. + }, + 'License' => MSF_LICENSE, + 'Author' => [ + 'Stuart Morgan ' + ], + 'Platform' => [ 'win' ], + 'SessionTypes' => [ 'meterpreter' ] + )) + + register_options([ + OptString.new('ADDITIONAL_FIELDS', [false, 'Additional group fields to retrieve, comma separated.', nil]), + OptBool.new('RESOLVE_MANAGERS', [true, 'Query LDAP to get the account name of group managers.', TRUE]), + OptBool.new('SECURITY_GROUPS_ONLY', [true, 'Only include security groups.', TRUE]) + ], self.class) + end + + def run + @user_fields = USER_FIELDS.dup + + if datastore['ADDITIONAL_FIELDS'] + additional_fields = datastore['ADDITIONAL_FIELDS'].gsub(/\s+/, "").split(',') + @user_fields.push(*additional_fields) + end + + max_search = datastore['MAX_SEARCH'] + + begin + qs = '(&(objectClass=group)(managedBy=*))' + if datastore['SECURITY_GROUPS_ONLY'] + qs = '(&(objectClass=group)(managedBy=*)(groupType:1.2.840.113556.1.4.803:=2147483648))' + end + q = query(qs, max_search, @user_fields) + rescue ::RuntimeError, ::Rex::Post::Meterpreter::RequestError => e + # Can't bind or in a network w/ limited accounts + print_error(e.message) + return + end + + if q.nil? || q[:results].empty? + print_status('No results returned.') + else + @user_fields << 'Manager Account Name' if datastore['RESOLVE_MANAGERS'] + results_table = parse_results(q[:results]) + print_line results_table.to_s + end + end + + # Takes the results of LDAP query, parses them into a table + def parse_results(results) + results_table = Rex::Ui::Text::Table.new( + 'Header' => "Groups with Managers", + 'Indent' => 1, + 'SortIndex' => -1, + 'Columns' => @user_fields + ) + + results.each do |result| + row = [] + + result.each do |field| + if field.nil? + row << "" + else + row << field[:value] + end + end + if datastore['RESOLVE_MANAGERS'] + begin + m = query("(distinguishedName=#{result[2][:value]})", 1, ['sAMAccountName']) + if !m.nil? && !m[:results].empty? + row << m[:results][0][0][:value] + else + row << "" + end + rescue + row << "" + end + end + results_table << row + end + results_table + end +end