Manager: Require read permission for SYSTEM in order to send FullyBooted

Review: https://reviewboard.asterisk.org/r/3969/
........

Merged revisions 422584 from http://svn.asterisk.org/svn/asterisk/branches/1.8


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/11@422625 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/manager.c

@@ -3317,6 +3317,7 @@ static int action_login(struct mansession *s, const struct message *m)
 	}
 	astman_send_ack(s, m, "Authentication accepted");
 	if ((s->session->send_events & EVENT_FLAG_SYSTEM)
+		&& (s->session->readperm & EVENT_FLAG_SYSTEM)
 		&& ast_test_flag(&ast_options, AST_OPT_FLAG_FULLY_BOOTED)) {
 		struct ast_str *auth = ast_str_alloca(80);
 		const char *cat_str = authority_to_str(EVENT_FLAG_SYSTEM, &auth);