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-rw-r--r--source4/rpc_server/samr/samr_password.c23
1 files changed, 15 insertions, 8 deletions
diff --git a/source4/rpc_server/samr/samr_password.c b/source4/rpc_server/samr/samr_password.c
index f334eeb8f3..ec83cbfdc9 100644
--- a/source4/rpc_server/samr/samr_password.c
+++ b/source4/rpc_server/samr/samr_password.c
@@ -88,17 +88,19 @@ NTSTATUS dcesrv_samr_ChangePasswordUser(struct dcesrv_call_state *dce_call,
status = samdb_result_passwords(mem_ctx, dce_call->conn->dce_ctx->lp_ctx,
msg, &lm_pwd, &nt_pwd);
- if (!NT_STATUS_IS_OK(status) || !lm_pwd || !nt_pwd) {
+ if (!NT_STATUS_IS_OK(status) || !nt_pwd) {
ldb_transaction_cancel(sam_ctx);
return NT_STATUS_WRONG_PASSWORD;
}
/* decrypt and check the new lm hash */
- D_P16(lm_pwd->hash, r->in.new_lm_crypted->hash, new_lmPwdHash.hash);
- D_P16(new_lmPwdHash.hash, r->in.old_lm_crypted->hash, checkHash.hash);
- if (memcmp(checkHash.hash, lm_pwd, 16) != 0) {
- ldb_transaction_cancel(sam_ctx);
- return NT_STATUS_WRONG_PASSWORD;
+ if (lm_pwd) {
+ D_P16(lm_pwd->hash, r->in.new_lm_crypted->hash, new_lmPwdHash.hash);
+ D_P16(new_lmPwdHash.hash, r->in.old_lm_crypted->hash, checkHash.hash);
+ if (memcmp(checkHash.hash, lm_pwd, 16) != 0) {
+ ldb_transaction_cancel(sam_ctx);
+ return NT_STATUS_WRONG_PASSWORD;
+ }
}
/* decrypt and check the new nt hash */
@@ -111,7 +113,7 @@ NTSTATUS dcesrv_samr_ChangePasswordUser(struct dcesrv_call_state *dce_call,
/* The NT Cross is not required by Win2k3 R2, but if present
check the nt cross hash */
- if (r->in.cross1_present && r->in.nt_cross) {
+ if (r->in.cross1_present && r->in.nt_cross && lm_pwd) {
D_P16(lm_pwd->hash, r->in.nt_cross->hash, checkHash.hash);
if (memcmp(checkHash.hash, new_ntPwdHash.hash, 16) != 0) {
ldb_transaction_cancel(sam_ctx);
@@ -121,7 +123,7 @@ NTSTATUS dcesrv_samr_ChangePasswordUser(struct dcesrv_call_state *dce_call,
/* The LM Cross is not required by Win2k3 R2, but if present
check the lm cross hash */
- if (r->in.cross2_present && r->in.lm_cross) {
+ if (r->in.cross2_present && r->in.lm_cross && lm_pwd) {
D_P16(nt_pwd->hash, r->in.lm_cross->hash, checkHash.hash);
if (memcmp(checkHash.hash, new_lmPwdHash.hash, 16) != 0) {
ldb_transaction_cancel(sam_ctx);
@@ -206,6 +208,11 @@ NTSTATUS dcesrv_samr_OemChangePasswordUser2(struct dcesrv_call_state *dce_call,
return NT_STATUS_INVALID_PARAMETER;
}
+ /* this call can only work with lanman auth */
+ if (!lp_lanman_auth(dce_call->conn->dce_ctx->lp_ctx)) {
+ return NT_STATUS_NOT_SUPPORTED;
+ }
+
/* To change a password we need to open as system */
sam_ctx = samdb_connect(mem_ctx, dce_call->event_ctx, dce_call->conn->dce_ctx->lp_ctx, system_session(mem_ctx, dce_call->conn->dce_ctx->lp_ctx));
if (sam_ctx == NULL) {