From 02a76d86db0cbe79fcaf1a500630e24d961fa149 Mon Sep 17 00:00:00 2001
From: Volker Lendecke <vl@samba.org>
Date: Mon, 8 May 2017 21:40:40 +0200
Subject: [PATCH] CVE-2017-7494: rpc_server3: Refuse to open pipe names with /
 inside

Bug: https://bugzilla.samba.org/show_bug.cgi?id=12780

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

Autobuild-User(master): Karolin Seeger <kseeger@samba.org>
Autobuild-Date(master): Wed May 24 14:34:30 CEST 2017 on sn-devel-144
---
 source3/rpc_server/srv_pipe.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/source3/rpc_server/srv_pipe.c b/source3/rpc_server/srv_pipe.c
index 39f5fb49ec3..f79fbe26abf 100644
--- a/source3/rpc_server/srv_pipe.c
+++ b/source3/rpc_server/srv_pipe.c
@@ -481,6 +481,11 @@ bool is_known_pipename(const char *pipename, struct ndr_syntax_id *syntax)
 {
 	NTSTATUS status;
 
+	if (strchr(pipename, '/')) {
+		DEBUG(1, ("Refusing open on pipe %s\n", pipename));
+		return false;
+	}
+
 	if (lp_disable_spoolss() && strequal(pipename, "spoolss")) {
 		DEBUG(10, ("refusing spoolss access\n"));
 		return false;
-- 
2.11.4.GIT