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authorStefan Metzmacher <metze@samba.org>2022-11-30 15:13:47 +0100
committerStefan Metzmacher <metze@samba.org>2022-12-14 00:48:48 +0100
commit28ac3faa51c66b005a90c527393fa7c2d43d4c31 (patch)
tree4a91e4ba763cd3374a26dec0af6e6a06f6e76ccb
parent93e4e50d250a85c9b0308c3f899ab00f47f427df (diff)
downloadsamba-28ac3faa51c66b005a90c527393fa7c2d43d4c31.tar.gz
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)
-rw-r--r--source3/utils/testparm.c20
1 files changed, 17 insertions, 3 deletions
diff --git a/source3/utils/testparm.c b/source3/utils/testparm.c
index 58ba46bc15f..dd8acb58ff7 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;