From: Volker Lendecke <vl@samba.org>
Date: Mon, 8 May 2017 19:40:40 +0000 (+0200)
Subject: CVE-2017-7494: rpc_server3: Refuse to open pipe names with / inside
X-Git-Tag: samba-4.4.14~2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=279f4afc4a869b24201465b9d18b9f2f9631d2cf;p=thirdparty%2Fsamba.git

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>
---

diff --git a/source3/rpc_server/srv_pipe.c b/source3/rpc_server/srv_pipe.c
index bcd7e5db6c2..40d60a76ed2 100644
--- a/source3/rpc_server/srv_pipe.c
+++ b/source3/rpc_server/srv_pipe.c
@@ -476,6 +476,11 @@ 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;