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From 89693b474a37c393ceb47afd668e8a96282a98b0 Mon Sep 17 00:00:00 2001
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From: Andreas Schneider <asn@samba.org>
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Date: Mon, 18 Nov 2019 10:28:59 +0100
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Subject: [PATCH 158/187] s3:winbind: Replace E_md5hash() with GnuTLS calls
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BUG: https://bugzilla.samba.org/show_bug.cgi?id=14195
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Signed-off-by: Andreas Schneider <asn@samba.org>
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Reviewed-by: Andrew Bartlett <abartlet@samba.org>
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(cherry picked from commit 4199d1040f09b5d95522d0cbdbaeec78b7d7b9a6)
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---
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source3/winbindd/winbindd_pam.c | 23 ++++++++++++++++++++++-
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1 file changed, 22 insertions(+), 1 deletion(-)
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diff --git a/source3/winbindd/winbindd_pam.c b/source3/winbindd/winbindd_pam.c
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index c5b7c09b5c1..8946dd70f99 100644
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--- a/source3/winbindd/winbindd_pam.c
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+++ b/source3/winbindd/winbindd_pam.c
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@@ -48,6 +48,9 @@
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#include "param/param.h"
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#include "messaging/messaging.h"
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+#include "lib/crypto/gnutls_helpers.h"
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+#include <gnutls/crypto.h>
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+
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#undef DBGC_CLASS
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#define DBGC_CLASS DBGC_WINBIND
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@@ -1086,7 +1089,25 @@ static NTSTATUS winbindd_dual_pam_auth_cached(struct winbindd_domain *domain,
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/* In this case we didn't store the nt_hash itself,
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but the MD5 combination of salt + nt_hash. */
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uchar salted_hash[NT_HASH_LEN];
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- E_md5hash(cached_salt, new_nt_pass, salted_hash);
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+ gnutls_hash_hd_t hash_hnd = NULL;
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+ int rc;
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+
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+ rc = gnutls_hash_init(&hash_hnd, GNUTLS_DIG_MD5);
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+ if (rc < 0) {
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+ return gnutls_error_to_ntstatus(rc, NT_STATUS_HASH_NOT_SUPPORTED);
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+ }
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+
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+ rc = gnutls_hash(hash_hnd, cached_salt, 16);
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+ if (rc < 0) {
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+ gnutls_hash_deinit(hash_hnd, NULL);
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+ return gnutls_error_to_ntstatus(rc, NT_STATUS_HASH_NOT_SUPPORTED);
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+ }
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+ rc = gnutls_hash(hash_hnd, new_nt_pass, 16);
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+ if (rc < 0) {
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+ gnutls_hash_deinit(hash_hnd, NULL);
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+ return gnutls_error_to_ntstatus(rc, NT_STATUS_HASH_NOT_SUPPORTED);
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+ }
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+ gnutls_hash_deinit(hash_hnd, salted_hash);
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password_good = (memcmp(cached_nt_pass, salted_hash,
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NT_HASH_LEN) == 0);
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--
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2.23.0
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