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Commit Graph

2235 Commits

Author SHA1 Message Date
Stefan Metzmacher
aac22d9eba s3:passdb: ENCTYPE_DES_CBC_MD5 is not longer used in secrets_domain_info_kerberos_keys()
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>

Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Mon Sep 30 17:03:55 UTC 2024 on atb-devel-224
2024-09-30 17:03:55 +00:00
Volker Lendecke
0e29b1cfb0 passdb: Simplify pdb_gethexhours() with hex_byte()
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Noel Power <noel.power@suse.com>
2024-09-20 17:13:37 +00:00
Volker Lendecke
1cdb9605b5 libsmb: Simplify pdb_sethexpwd with hex_byte()
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jennifer Sutton <jsutton@samba.org>
2024-08-27 07:19:32 +00:00
Pavel Filipenský
683f6eec40 s3: Sync machine account password in secrets_{prepare,finish}_password_change
BUG: https://bugzilla.samba.org/show_bug.cgi?id=6750

Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2024-07-26 17:12:36 +00:00
Ralph Boehme
8364db8a3c s3/passdb: add lookup_name_smbconf_ex() using lookup_name_internal()
Returns NTSTATUS instead of bool. lookup_name_smbconf() becomes a thin
wrapper around lookup_name_smbconf_ex().

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2024-07-26 10:06:31 +00:00
Ralph Boehme
01b0b85621 s3/passdb: factor out lookup_name_internal()
lookup_name() becomes a thin wrapper around lookup_name_internal(). Prepares for
adding more callers to lookup_name_internal() that are interested in the
NTSTATUS return value to distinguish between NAME_NOT_FOUND lookup results and
real errors.

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2024-07-26 10:06:31 +00:00
Ralph Boehme
1d6feea677 s3/passdb: use winbind_lookup_name_ex() in lookup_name() instead of winbind_lookup_name()
No change in behaviour, prepares for returning NTSTATUS instead of bool from
lookup_name().

Review-with: git show -w

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2024-07-26 10:06:31 +00:00
Stefan Metzmacher
9afe7b7a0f s3:passdb: don't clear the LM HASH without a password change
Updating things like the bad pwd count should not clear the
stored LM HASH with 'lanman auth = no'.

This allows testing with 'lanman auth = no' and 'lanman auth = yes'.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=9705

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2024-07-17 10:12:36 +00:00
Volker Lendecke
6f2aa43a3f passdb: Use getline(3) to read our old machine sid
Don't read the whole file.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2024-04-30 22:44:32 +00:00
Jo Sutton
b2d777a1ed s4:dsdb: Make use of DSDB_SEARCH_UPDATE_MANAGED_PASSWORDS search flag
Signed-off-by: Jo Sutton <josutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2024-04-21 22:10:36 +00:00
Volker Lendecke
0baae61e42 lib: Give lib/util/util_file.c its own header file
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Martin Schwenke <mschwenke@ddn.com>
2024-04-16 23:51:45 +00:00
Stefan Metzmacher
72a4d3ad5a s3:passdb: use DBG_ERR() for 'talloc_strdup failed' messages
Otherwise it's completely unclear where the messages come from

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2024-04-05 12:24:42 +00:00
Jo Sutton
0d3d2c433a s3:passdb: Reformat long line
Signed-off-by: Jo Sutton <josutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2024-02-16 02:41:36 +00:00
Jo Sutton
676601340c s3:passdb: Reformat array of strings
Signed-off-by: Jo Sutton <josutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2024-02-16 02:41:36 +00:00
Jo Sutton
2135e91b40 s3:passdb: Make array of strings static
Signed-off-by: Jo Sutton <josutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2024-02-16 02:41:36 +00:00
Jo Sutton
1b44febc8e s3:passdb: Remove trailing whitespace
Signed-off-by: Jo Sutton <josutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2024-02-16 02:41:36 +00:00
Andreas Schneider
13d98c8fa6 s3:passdb: Fix memory leak caused by recursion of get_global_sam_sid()
Direct leak of 68 byte(s) in 1 object(s) allocated from:
    #0 0x7f4f39cdc03f in malloc (/lib64/libasan.so.8+0xdc03f) (BuildId: 3e1694ad218c99a8b1b69231666a27df63cf19d0)
    #1 0x7f4f36fbe427 in malloc_ ../../source3/lib/util_malloc.c:38
    #2 0x7f4f394b5e19 in pdb_generate_sam_sid ../../source3/passdb/machine_sid.c:90
    #3 0x7f4f394b5e19 in get_global_sam_sid ../../source3/passdb/machine_sid.c:211
    #4 0x7f4f394af366 in secrets_store_domain_sid ../../source3/passdb/machine_account_secrets.c:143
    #5 0x7f4f394b5eb5 in pdb_generate_sam_sid ../../source3/passdb/machine_sid.c:110
    #6 0x7f4f394b5eb5 in get_global_sam_sid ../../source3/passdb/machine_sid.c:211
    #7 0x7f4f394af366 in secrets_store_domain_sid ../../source3/passdb/machine_account_secrets.c:143
    #8 0x557a1f11d62c in net_setlocalsid ../../source3/utils/net.c:416
    #9 0x557a1f1c9972 in net_run_function ../../source3/utils/net_util.c:464
    #10 0x557a1f121129 in main ../../source3/utils/net.c:1372
    #11 0x7f4f34c281af in __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>

Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Tue Jan 23 14:30:58 UTC 2024 on atb-devel-224
2024-01-23 14:30:58 +00:00
Andreas Schneider
18913d384e s3:passdb: Do not leak memory in pdb_tdb
==19938==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 77 byte(s) in 1 object(s) allocated from:
    #0 0x7f7d482841f8 in strdup (/lib64/libasan.so.8+0x841f8) (BuildId: 3e1694ad218c99a8b1b69231666a27df63cf19d0)
    #1 0x7f7d47204846  (bin/shared/libsamba-util.so.0+0x4c846) (BuildId: 43b084eb9013442ac68eb1fc17649f142cbb0f94)
    #2 0x7f7d40b1d97a in pdb_init_tdbsam ../../source3/passdb/pdb_tdb.c:1361
    #3 0x7f7d4715f266  (bin/shared/libsamba-passdb.so.0+0x76266) (BuildId: 13d2858e2217592a22a4ee9203fef759d52df733)
    #4 0x7f7d4715f57a  (bin/shared/libsamba-passdb.so.0+0x7657a) (BuildId: 13d2858e2217592a22a4ee9203fef759d52df733)
    #5 0x7f7d47163700  (bin/shared/libsamba-passdb.so.0+0x7a700) (BuildId: 13d2858e2217592a22a4ee9203fef759d52df733)
    #6 0x55a9177d3853 in main ../../source3/smbd/server.c:1928
    #7 0x7f7d434281af in __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
2024-01-23 13:23:33 +00:00
Jones Syue
c82a267b2a s3:passdb: smbpasswd reset permissions only if not 0600
Browsing files or download files from samba server, smbd would check user's
id to decide whether this user could access these files, by lookup user's
information from the password file (e.g. /usr/local/samba/private/smbpasswd).
smbd might goes through startsmbfilepwent(), this api calls [f]chmod() to
make sure the password file has valid permissions 0600.

Consider a scenario: we are doing a read performance benchmark about
downloading a bunch of files (e.g. a thousand files) from a samba server,
monitoring file system i/o activities counters, and expecting that should
be only read operations on file system because this is just downloading, no
uploading is involved. But actually found that still write operations on file
system, because smbd lookup user and always reset 0600 permissions on password
file while access each file, it makes dirty pages (inode modification) in ram,
later triggered a kernel journal daemon to sync dirty pages into back storage
(e.g. ext3 kjournald, or ext4 jbd2).
This looks like not friendly for read performance benchmark if it happened on
an entry-level systems with much less memory and limited computation power,
because dirty pages syncing in the meantime slows down read performance.

This patch adds fstat() before [f]chmod(), it would check whether password
file has valid permissions 0600 or not. If 0600 smbd would bypass [f]chmod()
to avoid making dirty pages on file systems. If not 0600 smbd would warn and
go through [f]chmod() to set valid permissions 0600 to password file as
earlier days.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15555

Signed-off-by: Jones Syue <jonessyue@qnap.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>

Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Thu Jan 18 10:28:19 UTC 2024 on atb-devel-224
2024-01-18 10:28:19 +00:00
Andreas Schneider
9621a3d7a6 Use python.h from libreplace
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15513

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-11-20 15:37:33 +00:00
Andreas Schneider
b3234c5574 s3:passdb: Do not leak memory if memcache add fails
Indirect leak of 496 byte(s) in 1 object(s) allocated from:
    #0 0x7ffb062dc03f in malloc (/lib64/libasan.so.8+0xdc03f) (BuildId: 3e1694ad218c99a8b1b69231666a27df63cf19d0)
    #1 0x7ffb06025b3e in __talloc_with_prefix ../../lib/talloc/talloc.c:783
    #2 0x7ffb06027512 in __talloc ../../lib/talloc/talloc.c:825
    #3 0x7ffb06027512 in _talloc_named_const ../../lib/talloc/talloc.c:982
    #4 0x7ffb06027512 in _talloc_zero ../../lib/talloc/talloc.c:2421
    #5 0x7ffb05a0332c in samu_new ../../source3/passdb/passdb.c:63
    #6 0x7ffb05a2031f in pdb_getsampwnam ../../source3/passdb/pdb_interface.c:351
    #7 0x7ffb05a0540b in local_password_change ../../source3/passdb/passdb.c:752
    #8 0x56291ddd4b8b in password_change ../../source3/utils/smbpasswd.c:273
    #9 0x56291ddd5b59 in process_root ../../source3/utils/smbpasswd.c:478
    #10 0x56291ddd5b59 in main ../../source3/utils/smbpasswd.c:661
    #11 0x7ffb024281af in __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-27 05:54:33 +00:00
Joseph Sutton
1a670182f4 s3:passdb: Fix code spelling
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-25 22:23:37 +00:00
Joseph Sutton
a0c1c4691d s3:passdb: Fix code formatting
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-25 22:23:37 +00:00
Volker Lendecke
770f279ab7 pdb: Slightly simplify pdb_samba_dsdb_set_trusteddom_pw()
This is easier to read to me.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2023-10-10 23:23:40 +00:00
Joseph Sutton
67f3fead5f s3:passdb: Initialize ‘tm’ structure
‘tm’ must be initialized prior to calling strptime().

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-09-27 02:43:28 +00:00
Volker Lendecke
2bea8a80e5 passdb: Fix a DBG statement
This is not pdb_getsampwent()

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2023-08-14 19:53:37 +00:00
Volker Lendecke
753e271ec3 passdb: Fix whitespace
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2023-08-14 19:53:37 +00:00
Volker Lendecke
b69380251d passdb: Fix a DBG message
This is not dsdb_add_domain_alias()

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2023-08-14 19:53:37 +00:00
Joseph Sutton
f80a8516b3 s3:passdb: Fix typo
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-08 04:39:38 +00:00
Joseph Sutton
1b082f7bd6 s3:passdb: Add missing newlines to logging messages
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-08 04:39:38 +00:00
Andrew Bartlett
5571ce9619 dsdb: Use samdb_system_container_dn() in pdb_samba_dsdb_*()
This makes more calls to add children, but avoids the cn=system string in the
codebase which makes it easier to audit that this is always being built
correctly.

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Mon Jul 31 07:20:21 UTC 2023 on atb-devel-224
2023-07-31 07:20:21 +00:00
Andreas Schneider
d41702abe0 s3:passdb: Fix code spelling
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
2023-07-19 09:58:37 +00:00
Joseph Sutton
e00eeed9d2 auth: Align integer types
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-02-08 00:03:40 +00:00
Joseph Sutton
c17e46a231 ldap: Make use of LDB_OID_COMPARATOR constants
These constants allow one to tell at a glance what search operation is
being performed.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-02-08 00:03:40 +00:00
Joseph Sutton
618d95822e ldap: Cut down on string substitution
Constant strings can be inserted directly into format strings, reducing
the amount of string substitution to be performed.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-02-08 00:03:40 +00:00
Joseph Sutton
7050e05742 auth: Store group attributes in auth_user_info_dc
Group expansion, performed in dsdb_expand_nested_groups(), now
incorporates a check of the type of each group. Those that are resource
groups receive the SE_GROUP_RESOURCE bit in the attributes which are now
carried alongside each group SID.

Whereas before, in auth_convert_user_info_dc_sambaseinfo() and
auth_convert_user_info_dc_saminfo6(), we invariantly used the flag
combination SE_GROUP_MANDATORY | SE_GROUP_ENABLED_BY_DEFAULT |
SE_GROUP_ENABLED to set attributes in the PAC, we now take the correct
attributes from user_info_dc.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-02-08 00:03:39 +00:00
Joseph Sutton
8f3cbf30a9 pdb_samba_dsdb: Handle dsdb_search_one() errors
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2022-10-05 04:23:32 +00:00
Pavel Filipenský
9c2ffef0d5 s3:passdb: Zero sensitive memory in lsa_secret_{set/get}_common()
Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2022-08-26 07:59:32 +00:00
Pavel Filipenský
79754f04bb s3:passdb: Zero secrets_domain_info1_password created via secrets_domain_info_password_create()
Zero out these members of struct secrets_domain_info1_password:

DATA_BLOB cleartext_blob;
struct samr_Password nt_hash;
struct secrets_domain_info1_kerberos_key *keys;

Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2022-08-26 07:59:32 +00:00
Pavel Filipenský
da2c723266 s3:passdb: Zero secrets_domain_info1_password created via secrets_fetch()
Zero out these members of struct secrets_domain_info1_password:

DATA_BLOB cleartext_blob;
struct samr_Password nt_hash;
struct secrets_domain_info1_kerberos_key *keys;

Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2022-08-26 07:59:32 +00:00
Pavel Filipenský
01c0ab191a s3:passdb: Zero local memory in secrets_domain_info_kerberos_keys()
Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2022-08-26 07:59:32 +00:00
Pavel Filipenský
ebfc167233 s3:passdb: Zero local memory in secrets_fetch()
Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2022-08-26 07:59:32 +00:00
Pavel Filipenský
4b2df80e89 s3:afs: Zero memory for afs_keyfile
Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2022-08-26 07:59:32 +00:00
Pavel Filipenský
2578eb3b5e s3:passdb: Fix possible memory leak in secrets_fetch_ipc_userpass()
If domain or username are empty strings (""), we need to free them.

Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2022-08-26 07:59:32 +00:00
Pavel Filipenský
5b64751394 s3:passdb: Zero password in secrets_fetch_ipc_userpass()
Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2022-08-26 07:59:32 +00:00
Pavel Filipenský
1772a05757 s3:passdb: Zero memory in pdb_set_pw_history()
Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2022-08-26 07:59:32 +00:00
Pavel Filipenský
003854a4f5 s3:passdb: Zero memory in pdb_set_plaintext_passwd()
Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2022-08-26 07:59:32 +00:00
Pavel Filipenský
12478c24b0 s3:passdb: s/BURN_PTR_SIZE/BURN_STR/ in samu_destroy()
This makes sure that strlen(user->plaintext_pw) is not called twice.

Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2022-08-26 07:59:32 +00:00
Pavel Filipenský
035e2021fa s3:passdb: Zero memory for plaintext_pw from 'struct samu'
Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2022-08-26 07:59:32 +00:00
Pavel Filipenský
02f667587c s3:passdb: Fix whitespaces in pdb_get_set.c
Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2022-08-26 07:59:32 +00:00