From: Stefan Metzmacher <metze@samba.org>
Date: Mon, 5 Dec 2022 20:36:23 +0000 (+0100)
Subject: CVE-2022-37966 testparm: warn about 'kerberos encryption types = legacy'
X-Git-Tag: samba-4.16.8~48
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=12e4e94853fd5b9a614dc0a6fb62acbe93f83be1;p=thirdparty%2Fsamba.git

CVE-2022-37966 testparm: warn about 'kerberos encryption types = legacy'

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

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 c0c25cc0217b082c12330a8c47869c8428a20d0c)
---

diff --git a/source3/utils/testparm.c b/source3/utils/testparm.c
index 02ef3de83ae..c22d40b4b1f 100644
--- a/source3/utils/testparm.c
+++ b/source3/utils/testparm.c
@@ -680,6 +680,14 @@ static int do_global_checks(void)
 			"options\n\n");
 	}
 
+	if (lp_kerberos_encryption_types() == KERBEROS_ETYPES_LEGACY) {
+		fprintf(stderr,
+			"WARNING: You have configured "
+			"'kerberos encryption types = legacy'. "
+			"Your server is vulernable to "
+			"CVE-2022-37966\n\n");
+	}
+
 	return ret;
 }