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s4:rpc_server: Use GnuTLS RC4 in lsa endpoint

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Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This commit is contained in:
Andreas Schneider 2019-01-17 12:25:43 +01:00 committed by Andreas Schneider
parent 80b6ad51f9
commit acf605f595
2 changed files with 36 additions and 5 deletions
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39
source3/rpc_server/lsa/srv_lsa_nt.c
View File

@ -39,7 +39,6 @@
#include "../libcli/security/dom_sid.h"
#include "../librpc/gen_ndr/drsblobs.h"
#include "../librpc/gen_ndr/ndr_drsblobs.h"
#include "../lib/crypto/arcfour.h"
#include "../libcli/security/dom_sid.h"
#include "../librpc/gen_ndr/ndr_security.h"
#include "passdb.h"
@ -51,6 +50,10 @@
#include "../libcli/lsarpc/util_lsarpc.h"
#include "lsa.h"
#include "lib/crypto/gnutls_helpers.h"
#include <gnutls/gnutls.h>
#include <gnutls/crypto.h>
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_RPC_SRV
@ -1682,22 +1685,50 @@ static NTSTATUS get_trustdom_auth_blob(struct pipes_struct *p,
{
enum ndr_err_code ndr_err;
DATA_BLOB lsession_key;
gnutls_cipher_hd_t cipher_hnd = NULL;
gnutls_datum_t my_session_key;
NTSTATUS status;
int rc;
status = session_extract_session_key(p->session_info, &lsession_key, KEY_USE_16BYTES);
if (!NT_STATUS_IS_OK(status)) {
return NT_STATUS_INVALID_PARAMETER;
}
arcfour_crypt_blob(auth_blob->data, auth_blob->length, &lsession_key);
my_session_key = (gnutls_datum_t) {
.data = lsession_key.data,
.size = lsession_key.length,
};
rc = gnutls_cipher_init(&cipher_hnd,
GNUTLS_CIPHER_ARCFOUR_128,
&my_session_key,
NULL);
if (rc < 0) {
status = gnutls_error_to_ntstatus(rc, NT_STATUS_CRYPTO_SYSTEM_INVALID);
goto out;
}
rc = gnutls_cipher_encrypt(cipher_hnd,
auth_blob->data,
auth_blob->length);
gnutls_cipher_deinit(cipher_hnd);
if (rc < 0) {
status = gnutls_error_to_ntstatus(rc, NT_STATUS_CRYPTO_SYSTEM_INVALID);
goto out;
}
ndr_err = ndr_pull_struct_blob(auth_blob, mem_ctx,
auth_struct,
(ndr_pull_flags_fn_t)ndr_pull_trustDomainPasswords);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
return NT_STATUS_INVALID_PARAMETER;
status = NT_STATUS_INVALID_PARAMETER;
goto out;
}
return NT_STATUS_OK;
status = NT_STATUS_OK;
out:
return status;
}
static NTSTATUS get_trustauth_inout_blob(TALLOC_CTX *mem_ctx,

2
source3/rpc_server/wscript_build
View File

@ -77,7 +77,7 @@ bld.SAMBA3_SUBSYSTEM('RPC_INITSHUTDOWN',
bld.SAMBA3_SUBSYSTEM('RPC_LSARPC',
source='''lsa/srv_lsa_nt.c
../../librpc/gen_ndr/srv_lsa.c''',
deps='SRV_ACCESS_CHECK LIBLSA')
deps='SRV_ACCESS_CHECK LIBLSA GNUTLS_HELPERS')
bld.SAMBA3_SUBSYSTEM('RPC_NETDFS',
source='''dfs/srv_dfs_nt.c