samba/backport-0029-CVE-2022-38023.patch

55 lines
1.7 KiB
Diff

From 8ec894c5b4ebe4438cd5b7582ac436ce464188bd Mon Sep 17 00:00:00 2001
From: Stefan Metzmacher <metze@samba.org>
Date: Wed, 30 Nov 2022 15:13:47 +0100
Subject: [PATCH 29/30] CVE-2022-38023 testparm: warn about server/client
schannel != yes
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
(cherry picked from commit f964c0c357214637f80d0089723b9b11d1b38f7e)
Conflict: NA
Reference: https://attachments.samba.org/attachment.cgi?id=17692
---
source3/utils/testparm.c | 20 +++++++++++++++++---
1 file changed, 17 insertions(+), 3 deletions(-)
diff --git a/source3/utils/testparm.c b/source3/utils/testparm.c
index e0455b9d7b6b..7e913a8ac4d3 100644
--- a/source3/utils/testparm.c
+++ b/source3/utils/testparm.c
@@ -598,11 +598,25 @@ static int do_global_checks(void)
ret = 1;
}
- if (!lp_server_schannel()) {
+ if (lp_server_schannel() != true) { /* can be 'auto' */
fprintf(stderr,
- "WARNING: You have configured 'server schannel = no'. "
+ "WARNING: You have not configured "
+ "'server schannel = yes' (the default). "
"Your server is vulernable to \"ZeroLogon\" "
- "(CVE-2020-1472)\n\n");
+ "(CVE-2020-1472)\n"
+ "If required use individual "
+ "'server require schannel:COMPUTERACCOUNT$ = no' "
+ "options\n\n");
+ }
+ if (lp_client_schannel() != true) { /* can be 'auto' */
+ fprintf(stderr,
+ "WARNING: You have not configured "
+ "'client schannel = yes' (the default). "
+ "Your server is vulernable to \"ZeroLogon\" "
+ "(CVE-2020-1472)\n"
+ "If required use individual "
+ "'client schannel:NETBIOSDOMAIN = no' "
+ "options\n\n");
}
return ret;
--
2.34.1