Proper fix for IPv6 postgresql connections

lib/msf/core/exploit/postgres.rb

@@ -160,7 +160,13 @@ module Exploit::Remote::Postgres
 		password = args[:password] || datastore['PASSWORD']
 		rhost = args[:server]         || datastore['RHOST']
 		rport = args[:port]         || datastore['RPORT']
+		
 		uri = "tcp://#{rhost}:#{rport}"
+		if Rex::Socket.is_ipv6?(rhost)
+			uri = "tcp://[#{rhost}]:#{rport}"
+		end
+		
+
 		verbose = args[:verbose]   || datastore['VERBOSE']
 		begin
 			self.postgres_conn = Connection.new(db,username,password,uri)

lib/postgres/postgres-pr/connection.rb

@@ -171,7 +171,7 @@ class Connection
     case u.scheme
     when 'tcp'
       @conn = Rex::Socket.create(
-		  'PeerHost' => (u.host || DEFAULT_HOST),
+		  'PeerHost' => (u.host || DEFAULT_HOST).gsub(/[\[\]]/, ''),  # Strip any brackets off (IPv6)
 		  'PeerPort' => (u.port || DEFAULT_PORT),
 		  'proto' => 'tcp'
 	  )