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-rw-r--r--source4/librpc/rpc/dcerpc.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/source4/librpc/rpc/dcerpc.c b/source4/librpc/rpc/dcerpc.c
index 5bbcc5e91c..c1e3e26ee9 100644
--- a/source4/librpc/rpc/dcerpc.c
+++ b/source4/librpc/rpc/dcerpc.c
@@ -334,6 +334,7 @@ static NTSTATUS ncacn_push_request_sign(struct dcerpc_connection *c,
DATA_BLOB creds2;
size_t payload_length;
enum ndr_err_code ndr_err;
+ size_t hdr_size = DCERPC_REQUEST_LENGTH;
/* non-signed packets are simpler */
if (sig_size == 0) {
@@ -367,6 +368,7 @@ static NTSTATUS ncacn_push_request_sign(struct dcerpc_connection *c,
if (pkt->pfc_flags & DCERPC_PFC_FLAG_OBJECT_UUID) {
ndr->flags |= LIBNDR_FLAG_OBJECT_PRESENT;
+ hdr_size += 16;
}
ndr_err = ndr_push_ncacn_packet(ndr, NDR_SCALARS|NDR_BUFFERS, pkt);
@@ -415,7 +417,7 @@ static NTSTATUS ncacn_push_request_sign(struct dcerpc_connection *c,
case DCERPC_AUTH_LEVEL_PRIVACY:
status = gensec_seal_packet(c->security_state.generic_state,
mem_ctx,
- blob->data + DCERPC_REQUEST_LENGTH,
+ blob->data + hdr_size,
payload_length,
blob->data,
blob->length,
@@ -428,7 +430,7 @@ static NTSTATUS ncacn_push_request_sign(struct dcerpc_connection *c,
case DCERPC_AUTH_LEVEL_INTEGRITY:
status = gensec_sign_packet(c->security_state.generic_state,
mem_ctx,
- blob->data + DCERPC_REQUEST_LENGTH,
+ blob->data + hdr_size,
payload_length,
blob->data,
blob->length,