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-rw-r--r--source4/libcli/auth/ntlmssp.c209
-rw-r--r--source4/libcli/auth/ntlmssp.h19
-rw-r--r--source4/libcli/auth/ntlmssp_parse.c32
-rw-r--r--source4/libcli/auth/ntlmssp_sign.c205
-rw-r--r--source4/libcli/auth/schannel.c7
5 files changed, 280 insertions, 192 deletions
diff --git a/source4/libcli/auth/ntlmssp.c b/source4/libcli/auth/ntlmssp.c
index 9513d5a138..3773c8e590 100644
--- a/source4/libcli/auth/ntlmssp.c
+++ b/source4/libcli/auth/ntlmssp.c
@@ -24,13 +24,17 @@
#include "includes.h"
static NTSTATUS ntlmssp_client_initial(struct ntlmssp_state *ntlmssp_state,
- DATA_BLOB reply, DATA_BLOB *next_request);
+ TALLOC_CTX *out_mem_ctx,
+ DATA_BLOB in, DATA_BLOB *out);
static NTSTATUS ntlmssp_server_negotiate(struct ntlmssp_state *ntlmssp_state,
+ TALLOC_CTX *out_mem_ctx,
const DATA_BLOB in, DATA_BLOB *out);
static NTSTATUS ntlmssp_client_challenge(struct ntlmssp_state *ntlmssp_state,
- const DATA_BLOB reply, DATA_BLOB *next_request);
+ TALLOC_CTX *out_mem_ctx,
+ const DATA_BLOB in, DATA_BLOB *out);
static NTSTATUS ntlmssp_server_auth(struct ntlmssp_state *ntlmssp_state,
- const DATA_BLOB request, DATA_BLOB *reply);
+ TALLOC_CTX *out_mem_ctx,
+ const DATA_BLOB in, DATA_BLOB *out);
/**
* Callbacks for NTLMSSP - for both client and server operating modes
@@ -41,6 +45,7 @@ static const struct ntlmssp_callbacks {
enum NTLMSSP_ROLE role;
enum NTLM_MESSAGE_TYPE ntlmssp_command;
NTSTATUS (*fn)(struct ntlmssp_state *ntlmssp_state,
+ TALLOC_CTX *out_mem_ctx,
DATA_BLOB in, DATA_BLOB *out);
} ntlmssp_callbacks[] = {
{NTLMSSP_CLIENT, NTLMSSP_INITIAL, ntlmssp_client_initial},
@@ -205,12 +210,15 @@ NTSTATUS ntlmssp_store_response(NTLMSSP_STATE *ntlmssp_state,
* Next state function for the NTLMSSP state machine
*
* @param ntlmssp_state NTLMSSP State
- * @param in The packet in from the NTLMSSP partner, as a DATA_BLOB
- * @param out The reply, as an allocated DATA_BLOB, caller to free.
- * @return Errors, NT_STATUS_MORE_PROCESSING_REQUIRED or NT_STATUS_OK.
+ * @param out_mem_ctx The TALLOC_CTX for *out to be allocated on
+ * @param in The request, as a DATA_BLOB
+ * @param out The reply, as an talloc()ed DATA_BLOB, on *out_mem_ctx
+ * @return Error, MORE_PROCESSING_REQUIRED if a reply is sent,
+ * or NT_STATUS_OK if the user is authenticated.
*/
NTSTATUS ntlmssp_update(NTLMSSP_STATE *ntlmssp_state,
+ TALLOC_CTX *out_mem_ctx,
const DATA_BLOB in, DATA_BLOB *out)
{
DATA_BLOB input;
@@ -219,6 +227,16 @@ NTSTATUS ntlmssp_update(NTLMSSP_STATE *ntlmssp_state,
*out = data_blob(NULL, 0);
+ if (ntlmssp_state->expected_state == NTLMSSP_DONE) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ if (!out_mem_ctx) {
+ /* if the caller doesn't want to manage/own the memory,
+ we can put it on our context */
+ out_mem_ctx = ntlmssp_state->mem_ctx;
+ }
+
if (!in.length && ntlmssp_state->stored_response.length) {
input = ntlmssp_state->stored_response;
@@ -239,7 +257,8 @@ NTSTATUS ntlmssp_update(NTLMSSP_STATE *ntlmssp_state,
break;
}
} else {
- if (!msrpc_parse(&input, "Cd",
+ if (!msrpc_parse(ntlmssp_state->mem_ctx,
+ &input, "Cd",
"NTLMSSP",
&ntlmssp_command)) {
DEBUG(1, ("Failed to parse NTLMSSP packet, could not extract NTLMSSP command\n"));
@@ -255,8 +274,9 @@ NTSTATUS ntlmssp_update(NTLMSSP_STATE *ntlmssp_state,
for (i=0; ntlmssp_callbacks[i].fn; i++) {
if (ntlmssp_callbacks[i].role == ntlmssp_state->role
- && ntlmssp_callbacks[i].ntlmssp_command == ntlmssp_command) {
- return ntlmssp_callbacks[i].fn(ntlmssp_state, input, out);
+ && ntlmssp_callbacks[i].ntlmssp_command == ntlmssp_command
+ && ntlmssp_callbacks[i].fn) {
+ return ntlmssp_callbacks[i].fn(ntlmssp_state, out_mem_ctx, input, out);
}
}
@@ -279,10 +299,6 @@ void ntlmssp_end(NTLMSSP_STATE **ntlmssp_state)
(*ntlmssp_state)->ref_count--;
if ((*ntlmssp_state)->ref_count == 0) {
- data_blob_free(&(*ntlmssp_state)->chal);
- data_blob_free(&(*ntlmssp_state)->lm_resp);
- data_blob_free(&(*ntlmssp_state)->nt_resp);
- data_blob_free(&(*ntlmssp_state)->encrypted_session_key);
talloc_destroy(mem_ctx);
}
@@ -391,6 +407,7 @@ static void ntlmssp_weaken_keys(struct ntlmssp_state *ntlmssp_state) {
ntlmssp_state->session_key.data[6] = 0x38;
ntlmssp_state->session_key.data[7] = 0xb0;
}
+ ntlmssp_state->session_key.length = 8;
}
}
@@ -398,13 +415,15 @@ static void ntlmssp_weaken_keys(struct ntlmssp_state *ntlmssp_state) {
* Next state function for the Negotiate packet
*
* @param ntlmssp_state NTLMSSP State
- * @param request The request, as a DATA_BLOB
- * @param request The reply, as an allocated DATA_BLOB, caller to free.
+ * @param out_mem_ctx The TALLOC_CTX for *out to be allocated on
+ * @param in The request, as a DATA_BLOB
+ * @param out The reply, as an talloc()ed DATA_BLOB, on *out_mem_ctx
* @return Errors or MORE_PROCESSING_REQUIRED if a reply is sent.
*/
static NTSTATUS ntlmssp_server_negotiate(struct ntlmssp_state *ntlmssp_state,
- const DATA_BLOB request, DATA_BLOB *reply)
+ TALLOC_CTX *out_mem_ctx,
+ const DATA_BLOB in, DATA_BLOB *out)
{
DATA_BLOB struct_blob;
fstring dnsname, dnsdomname;
@@ -419,21 +438,19 @@ static NTSTATUS ntlmssp_server_negotiate(struct ntlmssp_state *ntlmssp_state,
file_save("ntlmssp_negotiate.dat", request.data, request.length);
#endif
- if (request.length) {
- if (!msrpc_parse(&request, "CddAA",
+ if (in.length) {
+ if (!msrpc_parse(ntlmssp_state->mem_ctx,
+ &in, "CddAA",
"NTLMSSP",
&ntlmssp_command,
&neg_flags,
&cliname,
&domname)) {
DEBUG(1, ("ntlmssp_server_negotiate: failed to parse NTLMSSP:\n"));
- dump_data(2, (const char *)request.data, request.length);
+ dump_data(2, (const char *)in.data, in.length);
return NT_STATUS_INVALID_PARAMETER;
}
- SAFE_FREE(cliname);
- SAFE_FREE(domname);
-
debug_ntlmssp_flags(neg_flags);
}
@@ -481,7 +498,8 @@ static NTSTATUS ntlmssp_server_negotiate(struct ntlmssp_state *ntlmssp_state,
target_name_dns = dnsname;
}
- msrpc_gen(&struct_blob, "aaaaa",
+ msrpc_gen(out_mem_ctx,
+ &struct_blob, "aaaaa",
NTLMSSP_NAME_TYPE_DOMAIN, target_name,
NTLMSSP_NAME_TYPE_SERVER, ntlmssp_state->get_global_myname(),
NTLMSSP_NAME_TYPE_DOMAIN_DNS, dnsdomname,
@@ -500,7 +518,8 @@ static NTSTATUS ntlmssp_server_negotiate(struct ntlmssp_state *ntlmssp_state,
gen_string = "CdAdbddB";
}
- msrpc_gen(reply, gen_string,
+ msrpc_gen(out_mem_ctx,
+ out, gen_string,
"NTLMSSP",
NTLMSSP_CHALLENGE,
target_name,
@@ -510,8 +529,6 @@ static NTSTATUS ntlmssp_server_negotiate(struct ntlmssp_state *ntlmssp_state,
struct_blob.data, struct_blob.length);
}
- data_blob_free(&struct_blob);
-
ntlmssp_state->expected_state = NTLMSSP_AUTH;
return NT_STATUS_MORE_PROCESSING_REQUIRED;
@@ -522,7 +539,6 @@ static NTSTATUS ntlmssp_server_negotiate(struct ntlmssp_state *ntlmssp_state,
*
* @param ntlmssp_state NTLMSSP State
* @param request The request, as a DATA_BLOB
- * @param request The reply, as an allocated DATA_BLOB, caller to free.
* @return Errors or NT_STATUS_OK.
*/
@@ -549,6 +565,7 @@ static NTSTATUS ntlmssp_server_preauth(struct ntlmssp_state *ntlmssp_state,
parse_string = "CdBBAAABd";
}
+ /* zero these out */
data_blob_free(&ntlmssp_state->lm_resp);
data_blob_free(&ntlmssp_state->nt_resp);
@@ -557,7 +574,8 @@ static NTSTATUS ntlmssp_server_preauth(struct ntlmssp_state *ntlmssp_state,
ntlmssp_state->workstation = NULL;
/* now the NTLMSSP encoded auth hashes */
- if (!msrpc_parse(&request, parse_string,
+ if (!msrpc_parse(ntlmssp_state->mem_ctx,
+ &request, parse_string,
"NTLMSSP",
&ntlmssp_command,
&ntlmssp_state->lm_resp,
@@ -569,9 +587,8 @@ static NTSTATUS ntlmssp_server_preauth(struct ntlmssp_state *ntlmssp_state,
&auth_flags)) {
DEBUG(10, ("ntlmssp_server_auth: failed to parse NTLMSSP (nonfatal):\n"));
dump_data(10, (const char *)request.data, request.length);
- SAFE_FREE(domain);
- SAFE_FREE(user);
- SAFE_FREE(workstation);
+
+ /* zero this out */
data_blob_free(&ntlmssp_state->encrypted_session_key);
auth_flags = 0;
@@ -583,7 +600,8 @@ static NTSTATUS ntlmssp_server_preauth(struct ntlmssp_state *ntlmssp_state,
}
/* now the NTLMSSP encoded auth hashes */
- if (!msrpc_parse(&request, parse_string,
+ if (!msrpc_parse(ntlmssp_state->mem_ctx,
+ &request, parse_string,
"NTLMSSP",
&ntlmssp_command,
&ntlmssp_state->lm_resp,
@@ -593,9 +611,6 @@ static NTSTATUS ntlmssp_server_preauth(struct ntlmssp_state *ntlmssp_state,
&workstation)) {
DEBUG(1, ("ntlmssp_server_auth: failed to parse NTLMSSP:\n"));
dump_data(2, (const char *)request.data, request.length);
- SAFE_FREE(domain);
- SAFE_FREE(user);
- SAFE_FREE(workstation);
return NT_STATUS_INVALID_PARAMETER;
}
@@ -605,33 +620,23 @@ static NTSTATUS ntlmssp_server_preauth(struct ntlmssp_state *ntlmssp_state,
ntlmssp_handle_neg_flags(ntlmssp_state, auth_flags, ntlmssp_state->allow_lm_key);
if (!NT_STATUS_IS_OK(nt_status = ntlmssp_set_domain(ntlmssp_state, domain))) {
- SAFE_FREE(domain);
- SAFE_FREE(user);
- SAFE_FREE(workstation);
+ /* zero this out */
data_blob_free(&ntlmssp_state->encrypted_session_key);
return nt_status;
}
if (!NT_STATUS_IS_OK(nt_status = ntlmssp_set_username(ntlmssp_state, user))) {
- SAFE_FREE(domain);
- SAFE_FREE(user);
- SAFE_FREE(workstation);
+ /* zero this out */
data_blob_free(&ntlmssp_state->encrypted_session_key);
return nt_status;
}
if (!NT_STATUS_IS_OK(nt_status = ntlmssp_set_workstation(ntlmssp_state, workstation))) {
- SAFE_FREE(domain);
- SAFE_FREE(user);
- SAFE_FREE(workstation);
+ /* zero this out */
data_blob_free(&ntlmssp_state->encrypted_session_key);
return nt_status;
}
- SAFE_FREE(domain);
- SAFE_FREE(user);
- SAFE_FREE(workstation);
-
DEBUG(3,("Got user=[%s] domain=[%s] workstation=[%s] len1=%lu len2=%lu\n",
ntlmssp_state->user, ntlmssp_state->domain, ntlmssp_state->workstation, (unsigned long)ntlmssp_state->lm_resp.length, (unsigned long)ntlmssp_state->nt_resp.length));
@@ -648,7 +653,8 @@ static NTSTATUS ntlmssp_server_preauth(struct ntlmssp_state *ntlmssp_state,
if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
if (ntlmssp_state->nt_resp.length == 24 && ntlmssp_state->lm_resp.length == 24) {
struct MD5Context md5_session_nonce_ctx;
- SMB_ASSERT(ntlmssp_state->internal_chal.data && ntlmssp_state->internal_chal.length == 8);
+ SMB_ASSERT(ntlmssp_state->internal_chal.data
+ && ntlmssp_state->internal_chal.length == 8);
ntlmssp_state->doing_ntlm2 = True;
@@ -659,13 +665,17 @@ static NTSTATUS ntlmssp_server_preauth(struct ntlmssp_state *ntlmssp_state,
MD5Update(&md5_session_nonce_ctx, ntlmssp_state->session_nonce, 16);
MD5Final(session_nonce_hash, &md5_session_nonce_ctx);
- ntlmssp_state->chal = data_blob_talloc(ntlmssp_state->mem_ctx, session_nonce_hash, 8);
+ ntlmssp_state->chal = data_blob_talloc(ntlmssp_state->mem_ctx,
+ session_nonce_hash, 8);
- /* LM response is no longer useful */
+ /* LM response is no longer useful, zero it out */
data_blob_free(&ntlmssp_state->lm_resp);
/* We changed the effective challenge - set it */
- if (!NT_STATUS_IS_OK(nt_status = ntlmssp_state->set_challenge(ntlmssp_state, &ntlmssp_state->chal))) {
+ if (!NT_STATUS_IS_OK(nt_status =
+ ntlmssp_state->set_challenge(ntlmssp_state,
+ &ntlmssp_state->chal))) {
+ /* zero this out */
data_blob_free(&ntlmssp_state->encrypted_session_key);
return nt_status;
}
@@ -678,25 +688,20 @@ static NTSTATUS ntlmssp_server_preauth(struct ntlmssp_state *ntlmssp_state,
}
/**
- * Next state function for the Authenticate packet
+ * Next state function for the Authenticate packet
+ * (after authentication - figures out the session keys etc)
*
* @param ntlmssp_state NTLMSSP State
- * @param request The request, as a DATA_BLOB
- * @param reply The reply, as an allocated DATA_BLOB, caller to free.
* @return Errors or NT_STATUS_OK.
*/
static NTSTATUS ntlmssp_server_postauth(struct ntlmssp_state *ntlmssp_state,
DATA_BLOB *user_session_key,
- DATA_BLOB *lm_session_key,
- DATA_BLOB *reply)
+ DATA_BLOB *lm_session_key)
{
NTSTATUS nt_status;
DATA_BLOB session_key = data_blob(NULL, 0);
- /* parse the NTLMSSP packet */
- *reply = data_blob(NULL, 0);
-
if (user_session_key)
dump_data_pw("USER session key:\n", user_session_key->data, user_session_key->length);
@@ -807,8 +812,15 @@ static NTSTATUS ntlmssp_server_postauth(struct ntlmssp_state *ntlmssp_state,
data_blob_free(&ntlmssp_state->encrypted_session_key);
- /* allow arbitarily many authentications */
- ntlmssp_state->expected_state = NTLMSSP_AUTH;
+ /* allow arbitarily many authentications, but watch that this will cause a
+ memory leak, until the ntlmssp_state is shutdown
+ */
+
+ if (ntlmssp_state->server_multiple_authentications) {
+ ntlmssp_state->expected_state = NTLMSSP_AUTH;
+ } else {
+ ntlmssp_state->expected_state = NTLMSSP_DONE;
+ }
return nt_status;
}
@@ -818,22 +830,23 @@ static NTSTATUS ntlmssp_server_postauth(struct ntlmssp_state *ntlmssp_state,
* Next state function for the Authenticate packet
*
* @param ntlmssp_state NTLMSSP State
- * @param request The request, as a DATA_BLOB
- * @param reply The reply, as an allocated DATA_BLOB, caller to free.
- * @return Errors or NT_STATUS_OK.
+ * @param in The packet in from the NTLMSSP partner, as a DATA_BLOB
+ * @param out The reply, as an allocated DATA_BLOB, caller to free.
+ * @return Errors, NT_STATUS_MORE_PROCESSING_REQUIRED or NT_STATUS_OK.
*/
static NTSTATUS ntlmssp_server_auth(struct ntlmssp_state *ntlmssp_state,
- const DATA_BLOB request, DATA_BLOB *reply)
+ TALLOC_CTX *out_mem_ctx,
+ const DATA_BLOB in, DATA_BLOB *out)
{
DATA_BLOB user_session_key = data_blob(NULL, 0);
DATA_BLOB lm_session_key = data_blob(NULL, 0);
NTSTATUS nt_status;
- /* parse the NTLMSSP packet */
- *reply = data_blob(NULL, 0);
+ /* zero the outbound NTLMSSP packet */
+ *out = data_blob_talloc(out_mem_ctx, NULL, 0);
- if (!NT_STATUS_IS_OK(nt_status = ntlmssp_server_preauth(ntlmssp_state, request))) {
+ if (!NT_STATUS_IS_OK(nt_status = ntlmssp_server_preauth(ntlmssp_state, in))) {
return nt_status;
}
@@ -851,7 +864,12 @@ static NTSTATUS ntlmssp_server_auth(struct ntlmssp_state *ntlmssp_state,
return nt_status;
}
- return ntlmssp_server_postauth(ntlmssp_state, &user_session_key, &lm_session_key, reply);
+ if (ntlmssp_state->server_use_session_keys) {
+ return ntlmssp_server_postauth(ntlmssp_state, &user_session_key, &lm_session_key);
+ } else {
+ ntlmssp_state->session_key = data_blob(NULL, 0);
+ return NT_STATUS_OK;
+ }
}
/**
@@ -889,6 +907,9 @@ NTSTATUS ntlmssp_server_start(NTLMSSP_STATE **ntlmssp_state)
(*ntlmssp_state)->allow_lm_key = (lp_lanman_auth()
&& lp_parm_bool(-1, "ntlmssp_server", "allow_lm_key", False));
+ (*ntlmssp_state)->server_use_session_keys = True;
+ (*ntlmssp_state)->server_multiple_authentications = False;
+
(*ntlmssp_state)->ref_count = 1;
(*ntlmssp_state)->neg_flags =
@@ -910,13 +931,15 @@ NTSTATUS ntlmssp_server_start(NTLMSSP_STATE **ntlmssp_state)
* Next state function for the Initial packet
*
* @param ntlmssp_state NTLMSSP State
- * @param request The request, as a DATA_BLOB. reply.data must be NULL
- * @param request The reply, as an allocated DATA_BLOB, caller to free.
+ * @param out_mem_ctx The DATA_BLOB *out will be allocated on this context
+ * @param in The request, as a DATA_BLOB. reply.data must be NULL
+ * @param out The reply, as an talloc()ed DATA_BLOB, on out_mem_ctx
* @return Errors or NT_STATUS_OK.
*/
static NTSTATUS ntlmssp_client_initial(struct ntlmssp_state *ntlmssp_state,
- DATA_BLOB reply, DATA_BLOB *next_request)
+ TALLOC_CTX *out_mem_ctx,
+ DATA_BLOB in, DATA_BLOB *out)
{
if (ntlmssp_state->unicode) {
ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_UNICODE;
@@ -929,7 +952,8 @@ static NTSTATUS ntlmssp_client_initial(struct ntlmssp_state *ntlmssp_state,
}
/* generate the ntlmssp negotiate packet */
- msrpc_gen(next_request, "CddAA",
+ msrpc_gen(out_mem_ctx,
+ out, "CddAA",
"NTLMSSP",
NTLMSSP_NEGOTIATE,
ntlmssp_state->neg_flags,
@@ -951,7 +975,8 @@ static NTSTATUS ntlmssp_client_initial(struct ntlmssp_state *ntlmssp_state,
*/
static NTSTATUS ntlmssp_client_challenge(struct ntlmssp_state *ntlmssp_state,
- const DATA_BLOB reply, DATA_BLOB *next_request)
+ TALLOC_CTX *out_mem_ctx,
+ const DATA_BLOB in, DATA_BLOB *out)
{
uint32 chal_flags, ntlmssp_command, unkn1, unkn2;
DATA_BLOB server_domain_blob;
@@ -968,13 +993,14 @@ static NTSTATUS ntlmssp_client_challenge(struct ntlmssp_state *ntlmssp_state,
DATA_BLOB encrypted_session_key = data_blob(NULL, 0);
NTSTATUS nt_status;
- if (!msrpc_parse(&reply, "CdBd",
+ if (!msrpc_parse(ntlmssp_state->mem_ctx,
+ &in, "CdBd",
"NTLMSSP",
&ntlmssp_command,
&server_domain_blob,
&chal_flags)) {
DEBUG(1, ("Failed to parse the NTLMSSP Challenge: (#1)\n"));
- dump_data(2, (const char *)reply.data, reply.length);
+ dump_data(2, (const char *)in.data, in.length);
return NT_STATUS_INVALID_PARAMETER;
}
@@ -1006,7 +1032,8 @@ static NTSTATUS ntlmssp_client_challenge(struct ntlmssp_state *ntlmssp_state,
DEBUG(3, ("NTLMSSP: Set final flags:\n"));
debug_ntlmssp_flags(ntlmssp_state->neg_flags);
- if (!msrpc_parse(&reply, chal_parse_string,
+ if (!msrpc_parse(ntlmssp_state->mem_ctx,
+ &in, chal_parse_string,
"NTLMSSP",
&ntlmssp_command,
&server_domain,
@@ -1015,16 +1042,13 @@ static NTSTATUS ntlmssp_client_challenge(struct ntlmssp_state *ntlmssp_state,
&unkn1, &unkn2,
&struct_blob)) {
DEBUG(1, ("Failed to parse the NTLMSSP Challenge: (#2)\n"));
- dump_data(2, (const char *)reply.data, reply.length);
+ dump_data(2, (const char *)in.data, in.length);
return NT_STATUS_INVALID_PARAMETER;
}
- ntlmssp_state->server_domain = talloc_strdup(ntlmssp_state->mem_ctx,
- server_domain);
+ ntlmssp_state->server_domain = server_domain;
- SAFE_FREE(server_domain);
if (challenge_blob.length != 8) {
- data_blob_free(&struct_blob);
return NT_STATUS_INVALID_PARAMETER;
}
@@ -1137,7 +1161,6 @@ static NTSTATUS ntlmssp_client_challenge(struct ntlmssp_state *ntlmssp_state,
/* LM Key is incompatible... */
ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_LM_KEY;
}
-
}
if ((ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_LM_KEY)
@@ -1156,8 +1179,6 @@ static NTSTATUS ntlmssp_client_challenge(struct ntlmssp_state *ntlmssp_state,
dump_data_pw("LM session key\n", session_key.data, session_key.length);
}
- data_blob_free(&struct_blob);
-
/* Key exchange encryptes a new client-generated session key with
the password-derived key */
@@ -1167,18 +1188,19 @@ static NTSTATUS ntlmssp_client_challenge(struct ntlmssp_state *ntlmssp_state,
generate_random_buffer(client_session_key, sizeof(client_session_key), False);
/* Encrypt the new session key with the old one */
- encrypted_session_key = data_blob(client_session_key, sizeof(client_session_key));
+ encrypted_session_key = data_blob_talloc(ntlmssp_state->mem_ctx,
+ client_session_key, sizeof(client_session_key));
dump_data_pw("KEY_EXCH session key:\n", encrypted_session_key.data, encrypted_session_key.length);
SamOEMhash(encrypted_session_key.data, session_key.data, encrypted_session_key.length);
dump_data_pw("KEY_EXCH session key (enc):\n", encrypted_session_key.data, encrypted_session_key.length);
/* Mark the new session key as the 'real' session key */
- data_blob_free(&session_key);
session_key = data_blob_talloc(ntlmssp_state->mem_ctx, client_session_key, sizeof(client_session_key));
}
/* this generates the actual auth packet */
- if (!msrpc_gen(next_request, auth_gen_string,
+ if (!msrpc_gen(out_mem_ctx,
+ out, auth_gen_string,
"NTLMSSP",
NTLMSSP_AUTH,
lm_response.data, lm_response.length,
@@ -1192,10 +1214,6 @@ static NTSTATUS ntlmssp_client_challenge(struct ntlmssp_state *ntlmssp_state,
return NT_STATUS_NO_MEMORY;
}
- data_blob_free(&encrypted_session_key);
-
- data_blob_free(&ntlmssp_state->chal);
-
ntlmssp_state->session_key = session_key;
/* The client might be using 56 or 40 bit weakened keys */
@@ -1205,10 +1223,11 @@ static NTSTATUS ntlmssp_client_challenge(struct ntlmssp_state *ntlmssp_state,
ntlmssp_state->lm_resp = lm_response;
ntlmssp_state->nt_resp = nt_response;
- ntlmssp_state->expected_state = NTLMSSP_UNKNOWN;
+ ntlmssp_state->expected_state = NTLMSSP_DONE;
if (!NT_STATUS_IS_OK(nt_status = ntlmssp_sign_init(ntlmssp_state))) {
- DEBUG(1, ("Could not setup NTLMSSP signing/sealing system (error was: %s)\n", nt_errstr(nt_status)));
+ DEBUG(1, ("Could not setup NTLMSSP signing/sealing system (error was: %s)\n",
+ nt_errstr(nt_status)));
return nt_status;
}
diff --git a/source4/libcli/auth/ntlmssp.h b/source4/libcli/auth/ntlmssp.h
index a5e0951fa8..d3d39e8465 100644
--- a/source4/libcli/auth/ntlmssp.h
+++ b/source4/libcli/auth/ntlmssp.h
@@ -34,7 +34,8 @@ enum NTLM_MESSAGE_TYPE
NTLMSSP_NEGOTIATE = 1,
NTLMSSP_CHALLENGE = 2,
NTLMSSP_AUTH = 3,
- NTLMSSP_UNKNOWN = 4
+ NTLMSSP_UNKNOWN = 4,
+ NTLMSSP_DONE = 5 /* samba final state */
};
/* NTLMSSP negotiation flags */
@@ -80,9 +81,15 @@ typedef struct ntlmssp_state
BOOL unicode;
BOOL use_ntlmv2;
- BOOL use_nt_response; /* Set to 'NO' to debug what happens when the NT response is omited */
+ BOOL use_nt_response; /* Set to 'False' to debug what happens when the NT response is omited */
BOOL allow_lm_key; /* The LM_KEY code is not functional at this point, and it's not
very secure anyway */
+
+ BOOL server_use_session_keys; /* Set to 'False' for authentication only,
+ that will never return a session key */
+ BOOL server_multiple_authentications; /* Set to 'True' to allow squid 2.5
+ style 'challenge caching' */
+
char *user;
char *domain;
char *workstation;
@@ -159,10 +166,10 @@ typedef struct ntlmssp_state
uint32 ntlmssp_seq_num;
/* ntlmv2 */
- char send_sign_const[16];
- char send_seal_const[16];
- char recv_sign_const[16];
- char recv_seal_const[16];
+ char send_sign_key[16];
+ char send_seal_key[16];
+ char recv_sign_key[16];
+ char recv_seal_key[16];
unsigned char send_sign_hash[258];
unsigned char send_seal_hash[258];
diff --git a/source4/libcli/auth/ntlmssp_parse.c b/source4/libcli/auth/ntlmssp_parse.c
index 4b3043aec8..6ddaeebb06 100644
--- a/source4/libcli/auth/ntlmssp_parse.c
+++ b/source4/libcli/auth/ntlmssp_parse.c
@@ -40,7 +40,7 @@
d = word (4 bytes)
C = constant ascii string
*/
-BOOL msrpc_gen(DATA_BLOB *blob,
+BOOL msrpc_gen(TALLOC_CTX *mem_ctx, DATA_BLOB *blob,
const char *format, ...)
{
int i, n;
@@ -91,7 +91,7 @@ BOOL msrpc_gen(DATA_BLOB *blob,
va_end(ap);
/* allocate the space, then scan the format again to fill in the values */
- *blob = data_blob(NULL, head_size + data_size);
+ *blob = data_blob_talloc(mem_ctx, NULL, head_size + data_size);
head_ofs = 0;
data_ofs = head_size;
@@ -182,12 +182,12 @@ if ((head_ofs + amount) > blob->length) { \
C = constant ascii string
*/
-BOOL msrpc_parse(const DATA_BLOB *blob,
+BOOL msrpc_parse(TALLOC_CTX *mem_ctx, const DATA_BLOB *blob,
const char *format, ...)
{
int i;
va_list ap;
- char **ps, *s;
+ const char **ps, *s;
DATA_BLOB *b;
size_t head_ofs = 0;
uint16 len1, len2;
@@ -206,7 +206,7 @@ BOOL msrpc_parse(const DATA_BLOB *blob,
ps = va_arg(ap, char **);
if (len1 == 0 && len2 == 0) {
- *ps = smb_xstrdup("");
+ *ps = "";
} else {
/* make sure its in the right format - be strict */
if ((len1 != len2) || (ptr + len1 < ptr) || (ptr + len1 < len1) || (ptr + len1 > blob->length)) {
@@ -223,9 +223,12 @@ BOOL msrpc_parse(const DATA_BLOB *blob,
pull_string(NULL, p, blob->data + ptr, sizeof(p),
len1,
STR_UNICODE|STR_NOALIGN);
- (*ps) = smb_xstrdup(p);
+ (*ps) = talloc_strdup(mem_ctx, p);
+ if (!(*ps)) {
+ return False;
+ }
} else {
- (*ps) = smb_xstrdup("");
+ (*ps) = "";
}
}
break;
@@ -238,7 +241,7 @@ BOOL msrpc_parse(const DATA_BLOB *blob,
ps = va_arg(ap, char **);
/* make sure its in the right format - be strict */
if (len1 == 0 && len2 == 0) {
- *ps = smb_xstrdup("");
+ *ps = "";
} else {
if ((len1 != len2) || (ptr + len1 < ptr) || (ptr + len1 < len1) || (ptr + len1 > blob->length)) {
return False;
@@ -251,9 +254,12 @@ BOOL msrpc_parse(const DATA_BLOB *blob,
pull_string(NULL, p, blob->data + ptr, sizeof(p),
len1,
STR_ASCII|STR_NOALIGN);
- (*ps) = smb_xstrdup(p);
+ (*ps) = talloc_strdup(mem_ctx, p);
+ if (!(*ps)) {
+ return False;
+ }
} else {
- (*ps) = smb_xstrdup("");
+ (*ps) = "";
}
}
break;
@@ -265,7 +271,7 @@ BOOL msrpc_parse(const DATA_BLOB *blob,
b = (DATA_BLOB *)va_arg(ap, void *);
if (len1 == 0 && len2 == 0) {
- *b = data_blob(NULL, 0);
+ *b = data_blob_talloc(mem_ctx, NULL, 0);
} else {
/* make sure its in the right format - be strict */
if ((len1 != len2) || (ptr + len1 < ptr) || (ptr + len1 < len1) || (ptr + len1 > blob->length)) {
@@ -275,7 +281,7 @@ BOOL msrpc_parse(const DATA_BLOB *blob,
if (blob->data + ptr < (uint8 *)ptr || blob->data + ptr < blob->data)
return False;
- *b = data_blob(blob->data + ptr, len1);
+ *b = data_blob_talloc(mem_ctx, blob->data + ptr, len1);
}
break;
case 'b':
@@ -286,7 +292,7 @@ BOOL msrpc_parse(const DATA_BLOB *blob,
if (blob->data + head_ofs < (uint8 *)head_ofs || blob->data + head_ofs < blob->data)
return False;
- *b = data_blob(blob->data + head_ofs, len1);
+ *b = data_blob_talloc(mem_ctx, blob->data + head_ofs, len1);
head_ofs += len1;
break;
case 'd':
diff --git a/source4/libcli/auth/ntlmssp_sign.c b/source4/libcli/auth/ntlmssp_sign.c
index 5039a842bc..6abec7e8b6 100644
--- a/source4/libcli/auth/ntlmssp_sign.c
+++ b/source4/libcli/auth/ntlmssp_sign.c
@@ -53,7 +53,7 @@ static void NTLMSSPcalc_ap( unsigned char *hash, unsigned char *data, int len)
hash[257] = index_j;
}
-static void calc_hash(unsigned char hash[258], const char *k2, int k2l)
+static void calc_hash(unsigned char hash[258], const char *key, size_t key_len)
{
unsigned char j = 0;
int ind;
@@ -67,7 +67,7 @@ static void calc_hash(unsigned char hash[258], const char *k2, int k2l)
{
unsigned char tc;
- j += (hash[ind] + k2[ind%k2l]);
+ j += (hash[ind] + key[ind%key_len]);
tc = hash[ind];
hash[ind] = hash[j];
@@ -78,23 +78,37 @@ static void calc_hash(unsigned char hash[258], const char *k2, int k2l)
hash[257] = 0;
}
-static void calc_ntlmv2_hash(unsigned char hash[258], unsigned char digest[16],
+/**
+ * Some notes on then NTLM2 code:
+ *
+ * This code works correctly for the sealing part of the problem. If
+ * we disable the check for valid client signatures, then we see that
+ * the output of a rpcecho 'sinkdata' at smbd is correct. We get the
+ * valid data, and it is validly decrypted.
+ *
+ * This means that the quantity of data passing though the RC4 sealing
+ * pad is correct.
+ *
+ * This code also correctly matches test values that I have obtained,
+ * claiming to be the correct output of NTLM2 signature generation.
+ *
+ */
+
+
+
+
+static void calc_ntlmv2_hash(unsigned char hash[258], unsigned char subkey[16],
DATA_BLOB session_key,
const char *constant)
{
struct MD5Context ctx3;
- /* NOTE: This code is currently complate fantasy - it's
- got more in common with reality than the previous code
- (the LM session key is not the right thing to use) but
- it still needs work */
-
MD5Init(&ctx3);
MD5Update(&ctx3, session_key.data, session_key.length);
- MD5Update(&ctx3, (const unsigned char *)constant, strlen(constant)+1);
- MD5Final(digest, &ctx3);
+ MD5Update(&ctx3, constant, strlen(constant)+1);
+ MD5Final(subkey, &ctx3);
- calc_hash(hash, digest, 16);
+ calc_hash(hash, subkey, 16);
}
enum ntlmssp_direction {
@@ -103,40 +117,51 @@ enum ntlmssp_direction {
};
static NTSTATUS ntlmssp_make_packet_signature(NTLMSSP_STATE *ntlmssp_state,
+ TALLOC_CTX *sig_mem_ctx,
const uchar *data, size_t length,
enum ntlmssp_direction direction,
DATA_BLOB *sig)
{
if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
+
HMACMD5Context ctx;
uchar seq_num[4];
uchar digest[16];
SIVAL(seq_num, 0, ntlmssp_state->ntlmssp_seq_num);
- hmac_md5_init_limK_to_64((const unsigned char *)(ntlmssp_state->send_sign_const), 16, &ctx);
+ switch (direction) {
+ case NTLMSSP_SEND:
+ hmac_md5_init_limK_to_64(ntlmssp_state->send_sign_key,
+ sizeof(ntlmssp_state->send_sign_key), &ctx);
+ break;
+ case NTLMSSP_RECEIVE:
+ hmac_md5_init_limK_to_64(ntlmssp_state->recv_sign_key,
+ sizeof(ntlmssp_state->recv_sign_key), &ctx);
+ break;
+ }
hmac_md5_update(seq_num, 4, &ctx);
hmac_md5_update(data, length, &ctx);
hmac_md5_final(digest, &ctx);
- if (!msrpc_gen(sig, "dBd", NTLMSSP_SIGN_VERSION, digest, 8 /* only copy first 8 bytes */
- , ntlmssp_state->ntlmssp_seq_num)) {
- return NT_STATUS_NO_MEMORY;
- }
-
if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCH) {
switch (direction) {
case NTLMSSP_SEND:
- NTLMSSPcalc_ap(ntlmssp_state->send_sign_hash, sig->data+4, sig->length-4);
+ NTLMSSPcalc_ap(ntlmssp_state->send_seal_hash, digest, 8);
break;
case NTLMSSP_RECEIVE:
- NTLMSSPcalc_ap(ntlmssp_state->recv_sign_hash, sig->data+4, sig->length-4);
+ NTLMSSPcalc_ap(ntlmssp_state->recv_seal_hash, digest, 8);
break;
}
}
+ *sig = data_blob_talloc(sig_mem_ctx, NULL, 16);
+ SIVAL(sig->data, 0, NTLMSSP_SIGN_VERSION);
+ memcpy(sig->data + 4, digest, 8);
+ memcpy(sig->data + 12, seq_num, 4);
+
} else {
uint32 crc;
crc = crc32_calc_buffer((const char *)data, length);
- if (!msrpc_gen(sig, "dddd", NTLMSSP_SIGN_VERSION, 0, crc, ntlmssp_state->ntlmssp_seq_num)) {
+ if (!msrpc_gen(sig_mem_ctx, sig, "dddd", NTLMSSP_SIGN_VERSION, 0, crc, ntlmssp_state->ntlmssp_seq_num)) {
return NT_STATUS_NO_MEMORY;
}
@@ -148,16 +173,19 @@ static NTSTATUS ntlmssp_make_packet_signature(NTLMSSP_STATE *ntlmssp_state,
}
NTSTATUS ntlmssp_sign_packet(NTLMSSP_STATE *ntlmssp_state,
- const uchar *data, size_t length,
- DATA_BLOB *sig)
+ TALLOC_CTX *sig_mem_ctx,
+ const uchar *data, size_t length,
+ DATA_BLOB *sig)
{
NTSTATUS nt_status;
+
if (!ntlmssp_state->session_key.length) {
DEBUG(3, ("NO session key, cannot check sign packet\n"));
return NT_STATUS_NO_USER_SESSION_KEY;
}
- nt_status = ntlmssp_make_packet_signature(ntlmssp_state, data, length, NTLMSSP_SEND, sig);
+ nt_status = ntlmssp_make_packet_signature(ntlmssp_state, sig_mem_ctx,
+ data, length, NTLMSSP_SEND, sig);
/* increment counter on send */
ntlmssp_state->ntlmssp_seq_num++;
@@ -166,11 +194,11 @@ NTSTATUS ntlmssp_sign_packet(NTLMSSP_STATE *ntlmssp_state,
/**
* Check the signature of an incoming packet
- * @note caller *must* check that the signature is the size it expects
*
*/
NTSTATUS ntlmssp_check_packet(NTLMSSP_STATE *ntlmssp_state,
+ TALLOC_CTX *sig_mem_ctx,
const uchar *data, size_t length,
const DATA_BLOB *sig)
{
@@ -187,7 +215,7 @@ NTSTATUS ntlmssp_check_packet(NTLMSSP_STATE *ntlmssp_state,
(unsigned long)sig->length));
}
- nt_status = ntlmssp_make_packet_signature(ntlmssp_state, data,
+ nt_status = ntlmssp_make_packet_signature(ntlmssp_state, sig_mem_ctx, data,
length, NTLMSSP_RECEIVE, &local_sig);
if (!NT_STATUS_IS_OK(nt_status)) {
@@ -195,22 +223,37 @@ NTSTATUS ntlmssp_check_packet(NTLMSSP_STATE *ntlmssp_state,
return nt_status;
}
- if (local_sig.length != sig->length ||
- memcmp(local_sig.data + local_sig.length - 8,
- sig->data + sig->length - 8, 8) != 0) {
- DEBUG(5, ("BAD SIG: wanted signature of\n"));
- dump_data(5, (const char *)local_sig.data, local_sig.length);
-
- DEBUG(5, ("BAD SIG: got signature of\n"));
- dump_data(5, (const char *)(sig->data), sig->length);
+ /* increment counter on recv */
+ ntlmssp_state->ntlmssp_seq_num++;
- DEBUG(0, ("NTLMSSP packet check failed due to invalid signature!\n"));
- return NT_STATUS_ACCESS_DENIED;
+ if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
+ if (local_sig.length != sig->length ||
+ memcmp(local_sig.data,
+ sig->data, sig->length) != 0) {
+ DEBUG(5, ("BAD SIG NTLM2: wanted signature of\n"));
+ dump_data(5, local_sig.data, local_sig.length);
+
+ DEBUG(5, ("BAD SIG: got signature of\n"));
+ dump_data(5, sig->data, sig->length);
+
+ DEBUG(0, ("NTLMSSP NTLM2 packet check failed due to invalid signature!\n"));
+ return NT_STATUS_ACCESS_DENIED;
+ }
+ } else {
+ if (local_sig.length != sig->length ||
+ memcmp(local_sig.data + 8,
+ sig->data + 8, sig->length - 8) != 0) {
+ DEBUG(5, ("BAD SIG NTLM1: wanted signature of\n"));
+ dump_data(5, (const char *)local_sig.data, local_sig.length);
+
+ DEBUG(5, ("BAD SIG: got signature of\n"));
+ dump_data(5, (const char *)(sig->data), sig->length);
+
+ DEBUG(0, ("NTLMSSP NTLM1 packet check failed due to invalid signature!\n"));
+ return NT_STATUS_ACCESS_DENIED;
+ }
}
- /* increment counter on recieive */
- ntlmssp_state->ntlmssp_seq_num++;
-
return NT_STATUS_OK;
}
@@ -221,6 +264,7 @@ NTSTATUS ntlmssp_check_packet(NTLMSSP_STATE *ntlmssp_state,
*/
NTSTATUS ntlmssp_seal_packet(NTLMSSP_STATE *ntlmssp_state,
+ TALLOC_CTX *sig_mem_ctx,
uchar *data, size_t length,
DATA_BLOB *sig)
{
@@ -233,32 +277,34 @@ NTSTATUS ntlmssp_seal_packet(NTLMSSP_STATE *ntlmssp_state,
dump_data_pw("ntlmssp clear data\n", data, length);
if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
HMACMD5Context ctx;
- char seq_num[4];
+ uchar seq_num[4];
uchar digest[16];
SIVAL(seq_num, 0, ntlmssp_state->ntlmssp_seq_num);
- hmac_md5_init_limK_to_64((const unsigned char *)(ntlmssp_state->send_sign_const), 16, &ctx);
- hmac_md5_update((const unsigned char *)seq_num, 4, &ctx);
+ hmac_md5_init_limK_to_64(ntlmssp_state->send_sign_key,
+ sizeof(ntlmssp_state->send_sign_key), &ctx);
+ hmac_md5_update(seq_num, 4, &ctx);
hmac_md5_update(data, length, &ctx);
hmac_md5_final(digest, &ctx);
- if (!msrpc_gen(sig, "dBd", NTLMSSP_SIGN_VERSION, digest, 8 /* only copy first 8 bytes */
- , ntlmssp_state->ntlmssp_seq_num)) {
- return NT_STATUS_NO_MEMORY;
+ /* The order of these two operations matters - we must first seal the packet,
+ then seal the sequence number - this is becouse the send_seal_hash is not
+ constant, but is is rather updated with each iteration */
+
+ NTLMSSPcalc_ap(ntlmssp_state->send_seal_hash, data, length);
+
+ if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCH) {
+ NTLMSSPcalc_ap(ntlmssp_state->send_seal_hash, digest, 8);
}
- dump_data_pw("ntlmssp client sealing hash:\n",
- ntlmssp_state->send_seal_hash,
- sizeof(ntlmssp_state->send_seal_hash));
- NTLMSSPcalc_ap(ntlmssp_state->send_seal_hash, data, length);
- dump_data_pw("ntlmssp client signing hash:\n",
- ntlmssp_state->send_sign_hash,
- sizeof(ntlmssp_state->send_sign_hash));
- NTLMSSPcalc_ap(ntlmssp_state->send_sign_hash, sig->data+4, sig->length-4);
+ *sig = data_blob_talloc(sig_mem_ctx, NULL, 16);
+ SIVAL(sig->data, 0, NTLMSSP_SIGN_VERSION);
+ memcpy(sig->data + 4, digest, 8);
+ memcpy(sig->data + 12, seq_num, 4);
} else {
uint32 crc;
crc = crc32_calc_buffer((const char *)data, length);
- if (!msrpc_gen(sig, "dddd", NTLMSSP_SIGN_VERSION, 0, crc, ntlmssp_state->ntlmssp_seq_num)) {
+ if (!msrpc_gen(sig_mem_ctx, sig, "dddd", NTLMSSP_SIGN_VERSION, 0, crc, ntlmssp_state->ntlmssp_seq_num)) {
return NT_STATUS_NO_MEMORY;
}
@@ -288,8 +334,9 @@ NTSTATUS ntlmssp_seal_packet(NTLMSSP_STATE *ntlmssp_state,
*/
NTSTATUS ntlmssp_unseal_packet(NTLMSSP_STATE *ntlmssp_state,
- uchar *data, size_t length,
- DATA_BLOB *sig)
+ TALLOC_CTX *sig_mem_ctx,
+ uchar *data, size_t length,
+ DATA_BLOB *sig)
{
if (!ntlmssp_state->session_key.length) {
DEBUG(3, ("NO session key, cannot unseal packet\n"));
@@ -307,7 +354,10 @@ NTSTATUS ntlmssp_unseal_packet(NTLMSSP_STATE *ntlmssp_state,
}
dump_data_pw("ntlmssp clear data\n", data, length);
- return ntlmssp_check_packet(ntlmssp_state, data, length, sig);
+ return ntlmssp_check_packet(ntlmssp_state, sig_mem_ctx, data, length, sig);
+
+ /* increment counter on recv */
+ ntlmssp_state->ntlmssp_seq_num++;
}
/**
@@ -348,57 +398,60 @@ NTSTATUS ntlmssp_sign_init(NTLMSSP_STATE *ntlmssp_state)
break;
}
+ /* SEND */
calc_ntlmv2_hash(ntlmssp_state->send_sign_hash,
- ntlmssp_state->send_sign_const,
+ ntlmssp_state->send_sign_key,
ntlmssp_state->session_key, send_sign_const);
+ dump_data_pw("NTLMSSP send sign key:\n",
+ ntlmssp_state->send_sign_key,
+ sizeof(ntlmssp_state->send_sign_key));
+
dump_data_pw("NTLMSSP send sign hash:\n",
ntlmssp_state->send_sign_hash,
sizeof(ntlmssp_state->send_sign_hash));
calc_ntlmv2_hash(ntlmssp_state->send_seal_hash,
- ntlmssp_state->send_seal_const,
+ ntlmssp_state->send_seal_key,
ntlmssp_state->session_key, send_seal_const);
+ dump_data_pw("NTLMSSP send seal key:\n",
+ ntlmssp_state->send_seal_key,
+ sizeof(ntlmssp_state->send_seal_key));
+
dump_data_pw("NTLMSSP send sesl hash:\n",
ntlmssp_state->send_seal_hash,
sizeof(ntlmssp_state->send_seal_hash));
+ /* RECV */
calc_ntlmv2_hash(ntlmssp_state->recv_sign_hash,
- ntlmssp_state->recv_sign_const,
+ ntlmssp_state->recv_sign_key,
ntlmssp_state->session_key, recv_sign_const);
+ dump_data_pw("NTLMSSP recv sign key:\n",
+ ntlmssp_state->recv_sign_key,
+ sizeof(ntlmssp_state->recv_sign_key));
dump_data_pw("NTLMSSP receive sign hash:\n",
ntlmssp_state->recv_sign_hash,
sizeof(ntlmssp_state->recv_sign_hash));
calc_ntlmv2_hash(ntlmssp_state->recv_seal_hash,
- ntlmssp_state->recv_seal_const,
+ ntlmssp_state->recv_seal_key,
ntlmssp_state->session_key, recv_seal_const);
+ dump_data_pw("NTLMSSP recv seal key:\n",
+ ntlmssp_state->recv_sign_key,
+ sizeof(ntlmssp_state->recv_seal_key));
dump_data_pw("NTLMSSP receive seal hash:\n",
ntlmssp_state->recv_sign_hash,
sizeof(ntlmssp_state->recv_sign_hash));
- }
- else if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_LM_KEY) {
- if (!ntlmssp_state->session_key.data || ntlmssp_state->session_key.length < 8) {
- /* can't sign or check signatures yet */
- DEBUG(5, ("NTLMSSP Sign/Seal - cannot use LM KEY yet\n"));
- return NT_STATUS_UNSUCCESSFUL;
- }
-
- DEBUG(5, ("NTLMSSP Sign/Seal - using LM KEY\n"));
-
- calc_hash(ntlmssp_state->ntlmssp_hash, (const char *)(ntlmssp_state->session_key.data), 8);
- dump_data_pw("NTLMSSP hash:\n", ntlmssp_state->ntlmssp_hash,
- sizeof(ntlmssp_state->ntlmssp_hash));
} else {
- if (!ntlmssp_state->session_key.data || ntlmssp_state->session_key.length < 16) {
+ if (!ntlmssp_state->session_key.data) {
/* can't sign or check signatures yet */
- DEBUG(5, ("NTLMSSP Sign/Seal - cannot use NT KEY yet\n"));
+ DEBUG(5, ("NTLMSSP Sign/Seal - cannot use NT KEY\n"));
return NT_STATUS_UNSUCCESSFUL;
}
DEBUG(5, ("NTLMSSP Sign/Seal - using NT KEY\n"));
- calc_hash(ntlmssp_state->ntlmssp_hash, (const char *)(ntlmssp_state->session_key.data), 16);
+ calc_hash(ntlmssp_state->ntlmssp_hash, (const char *)(ntlmssp_state->session_key.data), ntlmssp_state->session_key.length);
dump_data_pw("NTLMSSP hash:\n", ntlmssp_state->ntlmssp_hash,
sizeof(ntlmssp_state->ntlmssp_hash));
}
diff --git a/source4/libcli/auth/schannel.c b/source4/libcli/auth/schannel.c
index e5a786ff24..59d0c4aa7d 100644
--- a/source4/libcli/auth/schannel.c
+++ b/source4/libcli/auth/schannel.c
@@ -93,6 +93,7 @@ static void schannel_digest(const uchar sess_key[16],
unseal a packet
*/
NTSTATUS schannel_unseal_packet(struct schannel_state *state,
+ TALLOC_CTX *mem_ctx,
uchar *data, size_t length,
DATA_BLOB *sig)
{
@@ -183,6 +184,7 @@ NTSTATUS schannel_check_packet(struct schannel_state *state,
seal a packet
*/
NTSTATUS schannel_seal_packet(struct schannel_state *state,
+ TALLOC_CTX *mem_ctx,
uchar *data, size_t length,
DATA_BLOB *sig)
{
@@ -208,7 +210,7 @@ NTSTATUS schannel_seal_packet(struct schannel_state *state,
netsec_deal_with_seq_num(state, digest_final, seq_num);
if (!state->signature.data) {
- state->signature = data_blob_talloc(state->mem_ctx, NULL, 32);
+ state->signature = data_blob_talloc(mem_ctx, NULL, 32);
if (!state->signature.data) {
return NT_STATUS_NO_MEMORY;
}
@@ -233,6 +235,7 @@ NTSTATUS schannel_seal_packet(struct schannel_state *state,
sign a packet
*/
NTSTATUS schannel_sign_packet(struct schannel_state *state,
+ TALLOC_CTX *mem_ctx,
const uchar *data, size_t length,
DATA_BLOB *sig)
{
@@ -250,7 +253,7 @@ NTSTATUS schannel_sign_packet(struct schannel_state *state,
netsec_deal_with_seq_num(state, digest_final, seq_num);
if (!state->signature.data) {
- state->signature = data_blob_talloc(state->mem_ctx, NULL, 32);
+ state->signature = data_blob_talloc(mem_ctx, NULL, 32);
if (!state->signature.data) {
return NT_STATUS_NO_MEMORY;
}
generated by cgit (git 2.34.1) at 2024-11-10 22:46:02 +0000