From: Stefan Metzmacher <metze@samba.org>
Date: Mon, 28 Oct 2024 15:30:19 +0000 (+0100)
Subject: s4:rpc_server/netlogon: make use of netlogon_creds_decrypt_samr_CryptPassword
X-Git-Tag: ldb-2.9.2~11
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dc7ab826ef37d46d0bb852e049c0ab03a704e439;p=thirdparty%2Fsamba.git

s4:rpc_server/netlogon: make use of netlogon_creds_decrypt_samr_CryptPassword

This will make it easier to implement netr_ServerAuthenticateKerberos() later...

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
(cherry picked from commit f1c1b8661a9121e1ff02784955c98d9f33bca8bd)
---

diff --git a/source4/rpc_server/netlogon/dcerpc_netlogon.c b/source4/rpc_server/netlogon/dcerpc_netlogon.c
index fa859e1125e..2597ee90eab 100644
--- a/source4/rpc_server/netlogon/dcerpc_netlogon.c
+++ b/source4/rpc_server/netlogon/dcerpc_netlogon.c
@@ -1063,6 +1063,10 @@ static NTSTATUS dcesrv_netr_ServerPasswordSet2(struct dcesrv_call_state *dce_cal
 	DATA_BLOB dec_blob = data_blob_null;
 	DATA_BLOB enc_blob = data_blob_null;
 	struct samr_CryptPassword password_buf;
+	enum dcerpc_AuthType auth_type = DCERPC_AUTH_TYPE_NONE;
+	enum dcerpc_AuthLevel auth_level = DCERPC_AUTH_LEVEL_NONE;
+
+	dcesrv_call_auth_info(dce_call, &auth_type, &auth_level);
 
 	nt_status = dcesrv_netr_creds_server_step_check(dce_call,
 							mem_ctx,
@@ -1080,16 +1084,10 @@ static NTSTATUS dcesrv_netr_ServerPasswordSet2(struct dcesrv_call_state *dce_cal
 	memcpy(password_buf.data, r->in.new_password->data, 512);
 	SIVAL(password_buf.data, 512, r->in.new_password->length);
 
-	if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
-		nt_status = netlogon_creds_aes_decrypt(creds,
-						       password_buf.data,
-						       516);
-	} else {
-		nt_status = netlogon_creds_arcfour_crypt(creds,
-							 password_buf.data,
-							 516);
-	}
-
+	nt_status = netlogon_creds_decrypt_samr_CryptPassword(creds,
+							      &password_buf,
+							      auth_type,
+							      auth_level);
 	if (!NT_STATUS_IS_OK(nt_status)) {
 		return nt_status;
 	}