Index: pluggable.php
===================================================================
--- pluggable.php	(revision 12646)
+++ pluggable.php	(working copy)
@@ -1472,7 +1472,7 @@
 	$password = '';
 	for ( $i = 0; $i < $length; $i++ )
 		$password .= substr($chars, wp_rand(0, strlen($chars) - 1), 1);
-	return $password;
+	return apply_filters('random_password', $password);
 }
 endif;