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From 97f9ec9431ebf22ae06f61c97c183e04b59d6e7f Mon Sep 17 00:00:00 2001
From: Andreas Schneider <asn@samba.org>
Date: Wed, 29 May 2019 17:16:26 +0200
Subject: [PATCH 009/187] s3:rpc_client: Return NTSTATUS for
init_samr_CryptPasswordEx()
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14031
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
(cherry picked from commit 7915a48e53c8f72ba56da2f433427b961feeb16f)
---
source3/lib/netapi/user.c | 9 ++++---
source3/libnet/libnet_join.c | 9 ++++---
source3/rpc_client/init_samr.c | 27 +++++++++++++++------
source3/rpc_client/init_samr.h | 6 ++---
source3/rpc_server/netlogon/srv_netlog_nt.c | 9 ++++---
source3/rpcclient/cmd_samr.c | 5 +++-
6 files changed, 44 insertions(+), 21 deletions(-)
diff --git a/source3/lib/netapi/user.c b/source3/lib/netapi/user.c
index 2136ef47ee6..827b7902040 100644
--- a/source3/lib/netapi/user.c
+++ b/source3/lib/netapi/user.c
@@ -313,9 +313,12 @@ static NTSTATUS set_user_info_USER_INFO_X(TALLOC_CTX *ctx,
user_info.info25.info = info21;
- init_samr_CryptPasswordEx(uX->usriX_password,
- session_key,
- &user_info.info25.password);
+ status = init_samr_CryptPasswordEx(uX->usriX_password,
+ session_key,
+ &user_info.info25.password);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
status = dcerpc_samr_SetUserInfo2(b, talloc_tos(),
user_handle,
diff --git a/source3/libnet/libnet_join.c b/source3/libnet/libnet_join.c
index abf8672d050..eb8e0ea17f7 100644
--- a/source3/libnet/libnet_join.c
+++ b/source3/libnet/libnet_join.c
@@ -1553,9 +1553,12 @@ static NTSTATUS libnet_join_joindomain_rpc(TALLOC_CTX *mem_ctx,
*/
old_timeout = rpccli_set_timeout(pipe_hnd, 600000);
- init_samr_CryptPasswordEx(r->in.machine_password,
- &session_key,
- &crypt_pwd_ex);
+ status = init_samr_CryptPasswordEx(r->in.machine_password,
+ &session_key,
+ &crypt_pwd_ex);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto error;
+ }
user_info.info26.password = crypt_pwd_ex;
user_info.info26.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
diff --git a/source3/rpc_client/init_samr.c b/source3/rpc_client/init_samr.c
index 8b41ec2f10f..5f6cbc5d3c7 100644
--- a/source3/rpc_client/init_samr.c
+++ b/source3/rpc_client/init_samr.c
@@ -22,6 +22,7 @@
#include "../lib/crypto/arcfour.h"
#include "rpc_client/init_samr.h"
+#include "lib/crypto/gnutls_helpers.h"
#include <gnutls/gnutls.h>
#include <gnutls/crypto.h>
@@ -29,9 +30,9 @@
inits a samr_CryptPasswordEx structure
*************************************************************************/
-void init_samr_CryptPasswordEx(const char *pwd,
- DATA_BLOB *session_key,
- struct samr_CryptPasswordEx *pwd_buf)
+NTSTATUS init_samr_CryptPasswordEx(const char *pwd,
+ DATA_BLOB *session_key,
+ struct samr_CryptPasswordEx *pwd_buf)
{
/* samr_CryptPasswordEx */
@@ -39,42 +40,52 @@ void init_samr_CryptPasswordEx(const char *pwd,
gnutls_hash_hd_t hash_hnd = NULL;
uint8_t confounder[16];
DATA_BLOB confounded_session_key = data_blob(NULL, 16);
+ NTSTATUS status;
+ bool ok;
int rc;
- encode_pw_buffer(pwbuf, pwd, STR_UNICODE);
+ ok = encode_pw_buffer(pwbuf, pwd, STR_UNICODE);
+ if (!ok) {
+ status = NT_STATUS_INTERNAL_ERROR;
+ goto out;
+ }
generate_random_buffer((uint8_t *)confounder, 16);
rc = gnutls_hash_init(&hash_hnd, GNUTLS_DIG_MD5);
if (rc < 0) {
+ status = gnutls_error_to_ntstatus(rc, NT_STATUS_HASH_NOT_SUPPORTED);
goto out;
}
rc = gnutls_hash(hash_hnd, confounder, 16);
if (rc < 0) {
gnutls_hash_deinit(hash_hnd, NULL);
+ status = gnutls_error_to_ntstatus(rc, NT_STATUS_HASH_NOT_SUPPORTED);
goto out;
}
rc = gnutls_hash(hash_hnd, session_key->data, session_key->length);
if (rc < 0) {
gnutls_hash_deinit(hash_hnd, NULL);
+ status = gnutls_error_to_ntstatus(rc, NT_STATUS_HASH_NOT_SUPPORTED);
goto out;
}
gnutls_hash_deinit(hash_hnd, confounded_session_key.data);
arcfour_crypt_blob(pwbuf, 516, &confounded_session_key);
- ZERO_ARRAY_LEN(confounded_session_key.data,
- confounded_session_key.length);
- data_blob_free(&confounded_session_key);
+ data_blob_clear_free(&confounded_session_key);
memcpy(&pwbuf[516], confounder, 16);
ZERO_ARRAY(confounder);
memcpy(pwd_buf->data, pwbuf, sizeof(pwbuf));
ZERO_ARRAY(pwbuf);
+
+ status = NT_STATUS_OK;
out:
- return;
+ data_blob_clear_free(&confounded_session_key);
+ return status;
}
/*************************************************************************
diff --git a/source3/rpc_client/init_samr.h b/source3/rpc_client/init_samr.h
index 4214ab55a04..3f0dc847dd2 100644
--- a/source3/rpc_client/init_samr.h
+++ b/source3/rpc_client/init_samr.h
@@ -22,9 +22,9 @@
/* The following definitions come from rpc_client/init_samr.c */
-void init_samr_CryptPasswordEx(const char *pwd,
- DATA_BLOB *session_key,
- struct samr_CryptPasswordEx *pwd_buf);
+NTSTATUS init_samr_CryptPasswordEx(const char *pwd,
+ DATA_BLOB *session_key,
+ struct samr_CryptPasswordEx *pwd_buf);
NTSTATUS init_samr_CryptPassword(const char *pwd,
DATA_BLOB *session_key,
struct samr_CryptPassword *pwd_buf);
diff --git a/source3/rpc_server/netlogon/srv_netlog_nt.c b/source3/rpc_server/netlogon/srv_netlog_nt.c
index c9aaa90cbb9..d5267bf7062 100644
--- a/source3/rpc_server/netlogon/srv_netlog_nt.c
+++ b/source3/rpc_server/netlogon/srv_netlog_nt.c
@@ -1226,9 +1226,12 @@ static NTSTATUS netr_set_machine_account_password(TALLOC_CTX *mem_ctx,
infolevel = UserInternal5InformationNew;
- init_samr_CryptPasswordEx(cr->creds.password,
- &session_key,
- &info26.password);
+ status = init_samr_CryptPasswordEx(cr->creds.password,
+ &session_key,
+ &info26.password);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto out;
+ }
info26.password_expired = PASS_DONT_CHANGE_AT_NEXT_LOGON;
info->info26 = info26;
diff --git a/source3/rpcclient/cmd_samr.c b/source3/rpcclient/cmd_samr.c
index ccaec1ada40..b1b7c06515c 100644
--- a/source3/rpcclient/cmd_samr.c
+++ b/source3/rpcclient/cmd_samr.c
@@ -3067,7 +3067,10 @@ static NTSTATUS cmd_samr_setuserinfo_int(struct rpc_pipe_client *cli,
if (!NT_STATUS_IS_OK(status)) {
return status;
}
- init_samr_CryptPasswordEx(param, &session_key, &pwd_buf_ex);
+ status = init_samr_CryptPasswordEx(param, &session_key, &pwd_buf_ex);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
nt_lm_owf_gen(param, nt_hash, lm_hash);
switch (level) {
--
2.23.0
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