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From c162d52b14947990fb6102180a7e2fd6a7d8d1d5 Mon Sep 17 00:00:00 2001
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From: Andreas Schneider <asn@samba.org>
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Date: Tue, 9 Jul 2019 13:11:54 +0200
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Subject: [PATCH 021/187] s4:libnet: Use encode_rc4_passwd_buffer() in
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libnet_SetPassword_samr_handle_25()
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BUG: https://bugzilla.samba.org/show_bug.cgi?id=14031
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Signed-off-by: Andreas Schneider <asn@samba.org>
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Reviewed-by: Andrew Bartlett <abartlet@samba.org>
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(cherry picked from commit e44ba0397c7558e1da6a46cc38237a3b0e5cef49)
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---
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source4/libnet/libnet_passwd.c | 43 +++++++---------------------------
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1 file changed, 9 insertions(+), 34 deletions(-)
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diff --git a/source4/libnet/libnet_passwd.c b/source4/libnet/libnet_passwd.c
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index 0beea077bd0..b2105121523 100644
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--- a/source4/libnet/libnet_passwd.c
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+++ b/source4/libnet/libnet_passwd.c
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@@ -331,10 +331,6 @@ static NTSTATUS libnet_SetPassword_samr_handle_25(struct libnet_context *ctx, TA
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struct samr_SetUserInfo2 sui;
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union samr_UserInfo u_info;
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DATA_BLOB session_key;
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- DATA_BLOB confounded_session_key = data_blob_talloc(mem_ctx, NULL, 16);
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- uint8_t confounder[16];
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- gnutls_hash_hd_t hash_hnd = NULL;
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- int rc;
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if (!r->samr_handle.in.info21) {
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return NT_STATUS_INVALID_PARAMETER_MIX;
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@@ -344,7 +340,6 @@ static NTSTATUS libnet_SetPassword_samr_handle_25(struct libnet_context *ctx, TA
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ZERO_STRUCT(u_info);
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u_info.info25.info = *r->samr_handle.in.info21;
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u_info.info25.info.fields_present |= SAMR_FIELD_NT_PASSWORD_PRESENT;
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- encode_pw_buffer(u_info.info25.password.data, r->samr_handle.in.newpassword, STR_UNICODE);
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status = dcerpc_fetch_session_key(r->samr_handle.in.dcerpc_pipe, &session_key);
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if (!NT_STATUS_IS_OK(status)) {
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@@ -354,36 +349,17 @@ static NTSTATUS libnet_SetPassword_samr_handle_25(struct libnet_context *ctx, TA
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return status;
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}
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- generate_random_buffer((uint8_t *)confounder, 16);
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-
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- rc = gnutls_hash_init(&hash_hnd, GNUTLS_DIG_MD5);
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- if (rc < 0) {
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- status = gnutls_error_to_ntstatus(rc, NT_STATUS_HASH_NOT_SUPPORTED);
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- goto out;
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- }
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-
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- rc = gnutls_hash(hash_hnd, confounder, 16);
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- if (rc < 0) {
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- gnutls_hash_deinit(hash_hnd, NULL);
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- status = gnutls_error_to_ntstatus(rc, NT_STATUS_HASH_NOT_SUPPORTED);
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- goto out;
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- }
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- rc = gnutls_hash(hash_hnd, session_key.data, session_key.length);
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- if (rc < 0) {
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- gnutls_hash_deinit(hash_hnd, NULL);
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- status = gnutls_error_to_ntstatus(rc, NT_STATUS_HASH_NOT_SUPPORTED);
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- goto out;
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+ status = encode_rc4_passwd_buffer(r->samr_handle.in.newpassword,
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+ &session_key,
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+ &u_info.info25.password);
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+ if (!NT_STATUS_IS_OK(status)) {
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+ r->samr_handle.out.error_string =
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+ talloc_asprintf(mem_ctx,
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+ "encode_rc4_passwd_buffer failed: %s",
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+ nt_errstr(status));
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+ return status;
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}
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- gnutls_hash_deinit(hash_hnd, confounded_session_key.data);
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-
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- arcfour_crypt_blob(u_info.info25.password.data, 516, &confounded_session_key);
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- ZERO_ARRAY_LEN(confounded_session_key.data,
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- confounded_session_key.length);
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- data_blob_free(&confounded_session_key);
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-
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- memcpy(&u_info.info25.password.data[516], confounder, 16);
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- ZERO_ARRAY(confounder);
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sui.in.user_handle = r->samr_handle.in.user_handle;
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sui.in.info = &u_info;
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@@ -401,7 +377,6 @@ static NTSTATUS libnet_SetPassword_samr_handle_25(struct libnet_context *ctx, TA
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r->samr_handle.in.account_name, nt_errstr(status));
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}
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-out:
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return status;
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}
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--
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2.23.0
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