From d2bc9f3afe23ee04d237ae9f4511fbe59a27ff54 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>
---
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 0633b5f..c3f0cd8 100644
--- a/source3/rpc_server/srv_pipe.c
+++ b/source3/rpc_server/srv_pipe.c
@@ -475,6 +475,11 @@ 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;
--
1.9.1