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-rw-r--r--source4/libcli/smb_composite/connect.c2
-rw-r--r--source4/libcli/smb_composite/fetchfile.c1
-rw-r--r--source4/libcli/smb_composite/fsinfo.c11
-rw-r--r--source4/libcli/smb_composite/sesssetup.c89
-rw-r--r--source4/libcli/smb_composite/smb_composite.h2
5 files changed, 77 insertions, 28 deletions
diff --git a/source4/libcli/smb_composite/connect.c b/source4/libcli/smb_composite/connect.c
index e56339f96b..a4137290bb 100644
--- a/source4/libcli/smb_composite/connect.c
+++ b/source4/libcli/smb_composite/connect.c
@@ -234,7 +234,7 @@ static NTSTATUS connect_negprot(struct composite_context *c,
NT_STATUS_NOT_OK_RETURN(status);
/* next step is a session setup */
- state->session = smbcli_session_init(state->transport, state, true);
+ state->session = smbcli_session_init(state->transport, state, true, io->in.session_options);
NT_STATUS_HAVE_NO_MEMORY(state->session);
/* setup for a tconx (or at least have the structure ready to
diff --git a/source4/libcli/smb_composite/fetchfile.c b/source4/libcli/smb_composite/fetchfile.c
index 9cd02a51f4..ff4f0e7930 100644
--- a/source4/libcli/smb_composite/fetchfile.c
+++ b/source4/libcli/smb_composite/fetchfile.c
@@ -147,6 +147,7 @@ struct composite_context *smb_composite_fetchfile_send(struct smb_composite_fetc
state->connect->in.workgroup = io->in.workgroup;
state->connect->in.options = io->in.options;
+ state->connect->in.session_options = io->in.session_options;
state->creq = smb_composite_connect_send(state->connect, state,
io->in.resolve_ctx, event_ctx);
diff --git a/source4/libcli/smb_composite/fsinfo.c b/source4/libcli/smb_composite/fsinfo.c
index 270d71f518..dc5327a29c 100644
--- a/source4/libcli/smb_composite/fsinfo.c
+++ b/source4/libcli/smb_composite/fsinfo.c
@@ -127,7 +127,8 @@ static void fsinfo_composite_handler(struct composite_context *creq)
composite fsinfo call - connects to a tree and queries a file system information
*/
struct composite_context *smb_composite_fsinfo_send(struct smbcli_tree *tree,
- struct smb_composite_fsinfo *io)
+ struct smb_composite_fsinfo *io,
+ struct resolve_context *resolve_ctx)
{
struct composite_context *c;
struct fsinfo_state *state;
@@ -154,13 +155,14 @@ struct composite_context *smb_composite_fsinfo_send(struct smbcli_tree *tree,
state->connect->in.workgroup = io->in.workgroup;
state->connect->in.options = tree->session->transport->options;
+ state->connect->in.session_options = tree->session->options;
c->state = COMPOSITE_STATE_IN_PROGRESS;
state->stage = FSINFO_CONNECT;
c->private_data = state;
state->creq = smb_composite_connect_send(state->connect, state,
- lp_resolve_context(global_loadparm), c->event_ctx);
+ resolve_ctx, c->event_ctx);
if (state->creq == NULL) goto failed;
@@ -197,9 +199,10 @@ NTSTATUS smb_composite_fsinfo_recv(struct composite_context *c, TALLOC_CTX *mem_
*/
NTSTATUS smb_composite_fsinfo(struct smbcli_tree *tree,
TALLOC_CTX *mem_ctx,
- struct smb_composite_fsinfo *io)
+ struct smb_composite_fsinfo *io,
+ struct resolve_context *resolve_ctx)
{
- struct composite_context *c = smb_composite_fsinfo_send(tree, io);
+ struct composite_context *c = smb_composite_fsinfo_send(tree, io, resolve_ctx);
return smb_composite_fsinfo_recv(c, mem_ctx);
}
diff --git a/source4/libcli/smb_composite/sesssetup.c b/source4/libcli/smb_composite/sesssetup.c
index 11ac37e257..645f5362ac 100644
--- a/source4/libcli/smb_composite/sesssetup.c
+++ b/source4/libcli/smb_composite/sesssetup.c
@@ -35,6 +35,7 @@
struct sesssetup_state {
union smb_sesssetup setup;
+ NTSTATUS remote_status;
NTSTATUS gensec_status;
struct smb_composite_sesssetup *io;
struct smbcli_request *req;
@@ -85,10 +86,26 @@ static void request_handler(struct smbcli_request *req)
DATA_BLOB session_key = data_blob(NULL, 0);
DATA_BLOB null_data_blob = data_blob(NULL, 0);
NTSTATUS session_key_err, nt_status;
+ struct smbcli_request *check_req = NULL;
- c->status = smb_raw_sesssetup_recv(req, state, &state->setup);
+ if (req->sign_caller_checks) {
+ req->do_not_free = true;
+ check_req = req;
+ }
+
+ state->remote_status = smb_raw_sesssetup_recv(req, state, &state->setup);
+ c->status = state->remote_status;
state->req = NULL;
+ /*
+ * we only need to check the signature if the
+ * NT_STATUS_OK is returned
+ */
+ if (!NT_STATUS_IS_OK(state->remote_status)) {
+ talloc_free(check_req);
+ check_req = NULL;
+ }
+
switch (state->setup.old.level) {
case RAW_SESSSETUP_OLD:
state->io->out.vuid = state->setup.old.out.vuid;
@@ -102,6 +119,7 @@ static void request_handler(struct smbcli_request *req)
state->io,
&state->req);
if (NT_STATUS_IS_OK(nt_status)) {
+ talloc_free(check_req);
c->status = nt_status;
composite_continue_smb(c, state->req, request_handler, c);
return;
@@ -120,6 +138,7 @@ static void request_handler(struct smbcli_request *req)
state->io,
&state->req);
if (NT_STATUS_IS_OK(nt_status)) {
+ talloc_free(check_req);
c->status = nt_status;
composite_continue_smb(c, state->req, request_handler, c);
return;
@@ -138,6 +157,7 @@ static void request_handler(struct smbcli_request *req)
state->io,
&state->req);
if (NT_STATUS_IS_OK(nt_status)) {
+ talloc_free(check_req);
c->status = nt_status;
composite_continue_smb(c, state->req, request_handler, c);
return;
@@ -169,12 +189,16 @@ static void request_handler(struct smbcli_request *req)
state->setup.spnego.in.secblob = data_blob(NULL, 0);
}
- /* we need to do another round of session setup. We keep going until both sides
- are happy */
- session_key_err = gensec_session_key(session->gensec, &session_key);
- if (NT_STATUS_IS_OK(session_key_err)) {
- set_user_session_key(session, &session_key);
- smbcli_transport_simple_set_signing(session->transport, session_key, null_data_blob);
+ if (NT_STATUS_IS_OK(state->remote_status)) {
+ if (state->setup.spnego.in.secblob.length) {
+ c->status = NT_STATUS_INTERNAL_ERROR;
+ break;
+ }
+ session_key_err = gensec_session_key(session->gensec, &session_key);
+ if (NT_STATUS_IS_OK(session_key_err)) {
+ set_user_session_key(session, &session_key);
+ smbcli_transport_simple_set_signing(session->transport, session_key, null_data_blob);
+ }
}
if (state->setup.spnego.in.secblob.length) {
@@ -186,6 +210,9 @@ static void request_handler(struct smbcli_request *req)
session->vuid = state->io->out.vuid;
state->req = smb_raw_sesssetup_send(session, &state->setup);
session->vuid = vuid;
+ if (state->req) {
+ state->req->sign_caller_checks = true;
+ }
composite_continue_smb(c, state->req, request_handler, c);
return;
}
@@ -196,6 +223,15 @@ static void request_handler(struct smbcli_request *req)
break;
}
+ if (check_req) {
+ check_req->sign_caller_checks = false;
+ if (!smbcli_request_check_sign_mac(check_req)) {
+ c->status = NT_STATUS_ACCESS_DENIED;
+ }
+ talloc_free(check_req);
+ check_req = NULL;
+ }
+
/* enforce the local signing required flag */
if (NT_STATUS_IS_OK(c->status) && !cli_credentials_is_anonymous(state->io->in.credentials)) {
if (!session->transport->negotiate.sign_info.doing_signing
@@ -222,11 +258,14 @@ static NTSTATUS session_setup_nt1(struct composite_context *c,
struct smb_composite_sesssetup *io,
struct smbcli_request **req)
{
- NTSTATUS nt_status;
+ NTSTATUS nt_status = NT_STATUS_INTERNAL_ERROR;
struct sesssetup_state *state = talloc_get_type(c->private_data, struct sesssetup_state);
DATA_BLOB names_blob = NTLMv2_generate_names_blob(state, lp_iconv_convenience(global_loadparm), session->transport->socket->hostname, lp_workgroup(global_loadparm));
- DATA_BLOB session_key;
+ DATA_BLOB session_key = data_blob(NULL, 0);
int flags = CLI_CRED_NTLM_AUTH;
+
+ smbcli_temp_set_signing(session->transport);
+
if (session->options.lanman_auth) {
flags |= CLI_CRED_LANMAN_AUTH;
}
@@ -258,12 +297,6 @@ static NTSTATUS session_setup_nt1(struct composite_context *c,
&state->setup.nt1.in.password2,
NULL, &session_key);
NT_STATUS_NOT_OK_RETURN(nt_status);
-
- smbcli_transport_simple_set_signing(session->transport, session_key,
- state->setup.nt1.in.password2);
- set_user_session_key(session, &session_key);
-
- data_blob_free(&session_key);
} else if (session->options.plaintext_auth) {
const char *password = cli_credentials_get_password(io->in.credentials);
state->setup.nt1.in.password1 = data_blob_talloc(state, password, strlen(password));
@@ -277,6 +310,15 @@ static NTSTATUS session_setup_nt1(struct composite_context *c,
if (!*req) {
return NT_STATUS_NO_MEMORY;
}
+
+ if (NT_STATUS_IS_OK(nt_status)) {
+ smbcli_transport_simple_set_signing(session->transport, session_key,
+ state->setup.nt1.in.password2);
+ set_user_session_key(session, &session_key);
+
+ data_blob_free(&session_key);
+ }
+
return (*req)->status;
}
@@ -350,9 +392,7 @@ static NTSTATUS session_setup_spnego(struct composite_context *c,
struct smbcli_request **req)
{
struct sesssetup_state *state = talloc_get_type(c->private_data, struct sesssetup_state);
- NTSTATUS status, session_key_err;
- DATA_BLOB session_key = data_blob(NULL, 0);
- DATA_BLOB null_data_blob = data_blob(NULL, 0);
+ NTSTATUS status;
const char *chosen_oid = NULL;
state->setup.spnego.level = RAW_SESSSETUP_SPNEGO;
@@ -440,15 +480,18 @@ static NTSTATUS session_setup_spnego(struct composite_context *c,
}
state->gensec_status = status;
- session_key_err = gensec_session_key(session->gensec, &session_key);
- if (NT_STATUS_IS_OK(session_key_err)) {
- smbcli_transport_simple_set_signing(session->transport, session_key, null_data_blob);
- }
-
*req = smb_raw_sesssetup_send(session, &state->setup);
if (!*req) {
return NT_STATUS_NO_MEMORY;
}
+
+ /*
+ * we need to check the signature ourself
+ * as the session key might be the acceptor subkey
+ * which comes within the response itself
+ */
+ (*req)->sign_caller_checks = true;
+
return (*req)->status;
}
diff --git a/source4/libcli/smb_composite/smb_composite.h b/source4/libcli/smb_composite/smb_composite.h
index 7f4b9d73e4..08ca40c833 100644
--- a/source4/libcli/smb_composite/smb_composite.h
+++ b/source4/libcli/smb_composite/smb_composite.h
@@ -57,6 +57,7 @@ struct smb_composite_fetchfile {
const char *workgroup;
const char *filename;
struct smbcli_options options;
+ struct smbcli_session_options session_options;
struct resolve_context *resolve_ctx;
} in;
struct {
@@ -98,6 +99,7 @@ struct smb_composite_connect {
bool fallback_to_anonymous;
const char *workgroup;
struct smbcli_options options;
+ struct smbcli_session_options session_options;
} in;
struct {
struct smbcli_tree *tree;
generated by cgit (git 2.34.1) at 2024-11-05 11:49:57 +0000