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-rw-r--r--source4/dsdb/samdb/ldb_modules/password_hash.c389
1 files changed, 383 insertions, 6 deletions
diff --git a/source4/dsdb/samdb/ldb_modules/password_hash.c b/source4/dsdb/samdb/ldb_modules/password_hash.c
index 861e17e4d0..780dc69b23 100644
--- a/source4/dsdb/samdb/ldb_modules/password_hash.c
+++ b/source4/dsdb/samdb/ldb_modules/password_hash.c
@@ -4,6 +4,7 @@
Copyright (C) Simo Sorce 2004-2006
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005-2006
Copyright (C) Andrew Tridgell 2004
+ Copyright (C) Stefan Metzmacher 2007
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -28,6 +29,7 @@
* Description: correctly update hash values based on changes to sambaPassword and friends
*
* Author: Andrew Bartlett
+ * Author: Stefan Metzmacher
*/
#include "includes.h"
@@ -47,6 +49,7 @@
#include "dsdb/samdb/ldb_modules/password_modules.h"
#include "librpc/ndr/libndr.h"
#include "librpc/gen_ndr/ndr_drsblobs.h"
+#include "lib/crypto/crypto.h"
/* If we have decided there is reason to work on this request, then
* setup all the password hash types correctly.
@@ -93,6 +96,7 @@ struct domain_data {
BOOL store_cleartext;
uint_t pwdProperties;
uint_t pwdHistoryLength;
+ char *netbios_domain;
char *dns_domain;
char *realm;
};
@@ -503,16 +507,349 @@ if (lp_parm_bool(-1, "password_hash", "create_aes_key", false)) {
return LDB_SUCCESS;
}
+static int setup_primary_wdigest(struct setup_password_fields_io *io,
+ const struct supplementalCredentialsBlob *old_scb,
+ struct package_PrimaryWDigestBlob *pdb)
+{
+ DATA_BLOB sAMAccountName;
+ DATA_BLOB sAMAccountName_l;
+ DATA_BLOB sAMAccountName_u;
+ const char *user_principal_name = io->u.user_principal_name;
+ DATA_BLOB userPrincipalName;
+ DATA_BLOB userPrincipalName_l;
+ DATA_BLOB userPrincipalName_u;
+ DATA_BLOB netbios_domain;
+ DATA_BLOB netbios_domain_l;
+ DATA_BLOB netbios_domain_u;
+ DATA_BLOB dns_domain;
+ DATA_BLOB dns_domain_l;
+ DATA_BLOB dns_domain_u;
+ DATA_BLOB cleartext;
+ DATA_BLOB digest;
+ DATA_BLOB delim;
+ DATA_BLOB backslash;
+ uint8_t i;
+ struct {
+ DATA_BLOB *user;
+ DATA_BLOB *realm;
+ DATA_BLOB *nt4dom;
+ } wdigest[] = {
+ /*
+ * See
+ * http://technet2.microsoft.com/WindowsServer/en/library/717b450c-f4a0-4cc9-86f4-cc0633aae5f91033.mspx?mfr=true
+ * for what precalculated hashes are supposed to be stored...
+ *
+ * I can't reproduce all values which should contain "Digest" as realm,
+ * am I doing something wrong or is w2k3 just broken...?
+ *
+ * W2K3 fills in following for a user:
+ *
+ * dn: CN=NewUser,OU=newtop,DC=sub1,DC=w2k3,DC=vmnet1,DC=vm,DC=base
+ * sAMAccountName: NewUser2Sam
+ * userPrincipalName: NewUser2Princ@sub1.w2k3.vmnet1.vm.base
+ *
+ * 4279815024bda54fc074a5f8bd0a6e6f => NewUser2Sam:SUB1:TestPwd2007
+ * b7ec9da91062199aee7d121e6710fe23 => newuser2sam:sub1:TestPwd2007
+ * 17d290bc5c9f463fac54c37a8cea134d => NEWUSER2SAM:SUB1:TestPwd2007
+ * 4279815024bda54fc074a5f8bd0a6e6f => NewUser2Sam:SUB1:TestPwd2007
+ * 5d57e7823938348127322e08cd81bcb5 => NewUser2Sam:sub1:TestPwd2007
+ * 07dd701bf8a011ece585de3d47237140 => NEWUSER2SAM:sub1:TestPwd2007
+ * e14fb0eb401498d2cb33c9aae1cc7f37 => newuser2sam:SUB1:TestPwd2007
+ * 8dadc90250f873d8b883f79d890bef82 => NewUser2Sam:sub1.w2k3.vmnet1.vm.base:TestPwd2007
+ * f52da1266a6bdd290ffd48b2c823dda7 => newuser2sam:sub1.w2k3.vmnet1.vm.base:TestPwd2007
+ * d2b42f171248cec37a3c5c6b55404062 => NEWUSER2SAM:SUB1.W2K3.VMNET1.VM.BASE:TestPwd2007
+ * fff8d790ff6c152aaeb6ebe17b4021de => NewUser2Sam:SUB1.W2K3.VMNET1.VM.BASE:TestPwd2007
+ * 8dadc90250f873d8b883f79d890bef82 => NewUser2Sam:sub1.w2k3.vmnet1.vm.base:TestPwd2007
+ * 2a7563c3715bc418d626dabef378c008 => NEWUSER2SAM:sub1.w2k3.vmnet1.vm.base:TestPwd2007
+ * c8e9557a87cd4200fda0c11d2fa03f96 => newuser2sam:SUB1.W2K3.VMNET1.VM.BASE:TestPwd2007
+ * 221c55284451ae9b3aacaa2a3c86f10f => NewUser2Princ@sub1.w2k3.vmnet1.vm.base::TestPwd2007
+ * 74e1be668853d4324d38c07e2acfb8ea => (w2k3 has a bug here!) newuser2princ@sub1.w2k3.vmnet1.vm.base::TestPwd2007
+ * e1e244ab7f098e3ae1761be7f9229bbb => NEWUSER2PRINC@SUB1.W2K3.VMNET1.VM.BASE::TestPwd2007
+ * 86db637df42513039920e605499c3af6 => SUB1\NewUser2Sam::TestPwd2007
+ * f5e43474dfaf067fee8197a253debaa2 => sub1\newuser2sam::TestPwd2007
+ * 2ecaa8382e2518e4b77a52422b279467 => SUB1\NEWUSER2SAM::TestPwd2007
+ * 31dc704d3640335b2123d4ee28aa1f11 => ??? changes with NewUser2Sam => NewUser1Sam
+ * 36349f5cecd07320fb3bb0e119230c43 => ??? changes with NewUser2Sam => NewUser1Sam
+ * 12adf019d037fb535c01fd0608e78d9d => ??? changes with NewUser2Sam => NewUser1Sam
+ * 6feecf8e724906f3ee1105819c5105a1 => ??? changes with NewUser2Princ => NewUser1Princ
+ * 6c6911f3de6333422640221b9c51ff1f => ??? changes with NewUser2Princ => NewUser1Princ
+ * 4b279877e742895f9348ac67a8de2f69 => ??? changes with NewUser2Princ => NewUser1Princ
+ * db0c6bff069513e3ebb9870d29b57490 => ??? changes with NewUser2Sam => NewUser1Sam
+ * 45072621e56b1c113a4e04a8ff68cd0e => ??? changes with NewUser2Sam => NewUser1Sam
+ * 11d1220abc44a9c10cf91ef4a9c1de02 => ??? changes with NewUser2Sam => NewUser1Sam
+ *
+ * dn: CN=NewUser,OU=newtop,DC=sub1,DC=w2k3,DC=vmnet1,DC=vm,DC=base
+ * sAMAccountName: NewUser2Sam
+ *
+ * 4279815024bda54fc074a5f8bd0a6e6f => NewUser2Sam:SUB1:TestPwd2007
+ * b7ec9da91062199aee7d121e6710fe23 => newuser2sam:sub1:TestPwd2007
+ * 17d290bc5c9f463fac54c37a8cea134d => NEWUSER2SAM:SUB1:TestPwd2007
+ * 4279815024bda54fc074a5f8bd0a6e6f => NewUser2Sam:SUB1:TestPwd2007
+ * 5d57e7823938348127322e08cd81bcb5 => NewUser2Sam:sub1:TestPwd2007
+ * 07dd701bf8a011ece585de3d47237140 => NEWUSER2SAM:sub1:TestPwd2007
+ * e14fb0eb401498d2cb33c9aae1cc7f37 => newuser2sam:SUB1:TestPwd2007
+ * 8dadc90250f873d8b883f79d890bef82 => NewUser2Sam:sub1.w2k3.vmnet1.vm.base:TestPwd2007
+ * f52da1266a6bdd290ffd48b2c823dda7 => newuser2sam:sub1.w2k3.vmnet1.vm.base:TestPwd2007
+ * d2b42f171248cec37a3c5c6b55404062 => NEWUSER2SAM:SUB1.W2K3.VMNET1.VM.BASE:TestPwd2007
+ * fff8d790ff6c152aaeb6ebe17b4021de => NewUser2Sam:SUB1.W2K3.VMNET1.VM.BASE:TestPwd2007
+ * 8dadc90250f873d8b883f79d890bef82 => NewUser2Sam:sub1.w2k3.vmnet1.vm.base:TestPwd2007
+ * 2a7563c3715bc418d626dabef378c008 => NEWUSER2SAM:sub1.w2k3.vmnet1.vm.base:TestPwd2007
+ * c8e9557a87cd4200fda0c11d2fa03f96 => newuser2sam:SUB1.W2K3.VMNET1.VM.BASE:TestPwd2007
+ * 8a140d30b6f0a5912735dc1e3bc993b4 => NewUser2Sam@sub1.w2k3.vmnet1.vm.base::TestPwd2007
+ * 86d95b2faae6cae4ec261e7fbaccf093 => (here w2k3 is correct) newuser2sam@sub1.w2k3.vmnet1.vm.base::TestPwd2007
+ * dfeff1493110220efcdfc6362e5f5450 => NEWUSER2SAM@SUB1.W2K3.VMNET1.VM.BASE::TestPwd2007
+ * 86db637df42513039920e605499c3af6 => SUB1\NewUser2Sam::TestPwd2007
+ * f5e43474dfaf067fee8197a253debaa2 => sub1\newuser2sam::TestPwd2007
+ * 2ecaa8382e2518e4b77a52422b279467 => SUB1\NEWUSER2SAM::TestPwd2007
+ * 31dc704d3640335b2123d4ee28aa1f11 => ???M1 changes with NewUser2Sam => NewUser1Sam
+ * 36349f5cecd07320fb3bb0e119230c43 => ???M1.L changes with newuser2sam => newuser1sam
+ * 12adf019d037fb535c01fd0608e78d9d => ???M1.U changes with NEWUSER2SAM => NEWUSER1SAM
+ * 569b4533f2d9e580211dd040e5e360a8 => ???M2 changes with NewUser2Princ => NewUser1Princ
+ * 52528bddf310a587c5d7e6a9ae2cbb20 => ???M2.L changes with newuser2princ => newuser1princ
+ * 4f629a4f0361289ca4255ab0f658fcd5 => ???M3 changes with NewUser2Princ => NewUser1Princ (doesn't depend on case of userPrincipal )
+ * db0c6bff069513e3ebb9870d29b57490 => ???M4 changes with NewUser2Sam => NewUser1Sam
+ * 45072621e56b1c113a4e04a8ff68cd0e => ???M5 changes with NewUser2Sam => NewUser1Sam (doesn't depend on case of sAMAccountName)
+ * 11d1220abc44a9c10cf91ef4a9c1de02 => ???M4.U changes with NEWUSER2SAM => NEWUSER1SAM
+ */
+
+ /*
+ * sAMAccountName, netbios_domain
+ */
+ {
+ .user = &sAMAccountName,
+ .realm = &netbios_domain,
+ },
+ {
+ .user = &sAMAccountName_l,
+ .realm = &netbios_domain_l,
+ },
+ {
+ .user = &sAMAccountName_u,
+ .realm = &netbios_domain_u,
+ },
+ {
+ .user = &sAMAccountName,
+ .realm = &netbios_domain_u,
+ },
+ {
+ .user = &sAMAccountName,
+ .realm = &netbios_domain_l,
+ },
+ {
+ .user = &sAMAccountName_u,
+ .realm = &netbios_domain_l,
+ },
+ {
+ .user = &sAMAccountName_l,
+ .realm = &netbios_domain_u,
+ },
+ /*
+ * sAMAccountName, dns_domain
+ */
+ {
+ .user = &sAMAccountName,
+ .realm = &dns_domain,
+ },
+ {
+ .user = &sAMAccountName_l,
+ .realm = &dns_domain_l,
+ },
+ {
+ .user = &sAMAccountName_u,
+ .realm = &dns_domain_u,
+ },
+ {
+ .user = &sAMAccountName,
+ .realm = &dns_domain_u,
+ },
+ {
+ .user = &sAMAccountName,
+ .realm = &dns_domain_l,
+ },
+ {
+ .user = &sAMAccountName_u,
+ .realm = &dns_domain_l,
+ },
+ {
+ .user = &sAMAccountName_l,
+ .realm = &dns_domain_u,
+ },
+ /*
+ * userPrincipalName, no realm
+ */
+ {
+ .user = &userPrincipalName,
+ },
+ {
+ /*
+ * NOTE: w2k3 messes this up, if the user has a real userPrincipalName,
+ * the fallback to the sAMAccountName based userPrincipalName is correct
+ */
+ .user = &userPrincipalName_l,
+ },
+ {
+ .user = &userPrincipalName_u,
+ },
+ /*
+ * nt4dom\sAMAccountName, no realm
+ */
+ {
+ .user = &sAMAccountName,
+ .nt4dom = &netbios_domain
+ },
+ {
+ .user = &sAMAccountName_l,
+ .nt4dom = &netbios_domain_l
+ },
+ {
+ .user = &sAMAccountName_u,
+ .nt4dom = &netbios_domain_u
+ },
+
+ /*
+ * the following ones are guessed depending on the technet2 article
+ * but not reproducable on a w2k3 server
+ */
+ /* sAMAccountName with "Digest" realm */
+ {
+ .user = &sAMAccountName,
+ .realm = &digest
+ },
+ {
+ .user = &sAMAccountName_l,
+ .realm = &digest
+ },
+ {
+ .user = &sAMAccountName_u,
+ .realm = &digest
+ },
+ /* userPrincipalName with "Digest" realm */
+ {
+ .user = &userPrincipalName,
+ .realm = &digest
+ },
+ {
+ .user = &userPrincipalName_l,
+ .realm = &digest
+ },
+ {
+ .user = &userPrincipalName_u,
+ .realm = &digest
+ },
+ /* nt4dom\\sAMAccountName with "Digest" realm */
+ {
+ .user = &sAMAccountName,
+ .nt4dom = &netbios_domain,
+ .realm = &digest
+ },
+ {
+ .user = &sAMAccountName_l,
+ .nt4dom = &netbios_domain_l,
+ .realm = &digest
+ },
+ {
+ .user = &sAMAccountName_u,
+ .nt4dom = &netbios_domain_u,
+ .realm = &digest
+ },
+ };
+
+ /* prepare DATA_BLOB's used in the combinations array */
+ sAMAccountName = data_blob_string_const(io->u.sAMAccountName);
+ sAMAccountName_l = data_blob_string_const(strlower_talloc(io->ac, io->u.sAMAccountName));
+ if (!sAMAccountName_l.data) {
+ ldb_oom(io->ac->module->ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ sAMAccountName_u = data_blob_string_const(strupper_talloc(io->ac, io->u.sAMAccountName));
+ if (!sAMAccountName_u.data) {
+ ldb_oom(io->ac->module->ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ /* if the user doesn't have a userPrincipalName, create one (with lower case realm) */
+ if (!user_principal_name) {
+ user_principal_name = talloc_asprintf(io->ac, "%s@%s",
+ io->u.sAMAccountName,
+ io->domain->dns_domain);
+ if (!user_principal_name) {
+ ldb_oom(io->ac->module->ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ }
+ userPrincipalName = data_blob_string_const(user_principal_name);
+ userPrincipalName_l = data_blob_string_const(strlower_talloc(io->ac, user_principal_name));
+ if (!userPrincipalName_l.data) {
+ ldb_oom(io->ac->module->ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ userPrincipalName_u = data_blob_string_const(strupper_talloc(io->ac, user_principal_name));
+ if (!userPrincipalName_u.data) {
+ ldb_oom(io->ac->module->ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ netbios_domain = data_blob_string_const(io->domain->netbios_domain);
+ netbios_domain_l = data_blob_string_const(strlower_talloc(io->ac, io->domain->netbios_domain));
+ if (!netbios_domain_l.data) {
+ ldb_oom(io->ac->module->ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ netbios_domain_u = data_blob_string_const(strupper_talloc(io->ac, io->domain->netbios_domain));
+ if (!netbios_domain_u.data) {
+ ldb_oom(io->ac->module->ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ dns_domain = data_blob_string_const(io->domain->dns_domain);
+ dns_domain_l = data_blob_string_const(io->domain->dns_domain);
+ dns_domain_u = data_blob_string_const(io->domain->realm);
+
+ cleartext = data_blob_string_const(io->n.cleartext);
+
+ digest = data_blob_string_const("Digest");
+
+ delim = data_blob_string_const(":");
+ backslash = data_blob_string_const("\\");
+
+ pdb->num_hashes = ARRAY_SIZE(wdigest);
+ pdb->hashes = talloc_array(io->ac, struct package_PrimaryWDigestHash, pdb->num_hashes);
+ if (!pdb->hashes) {
+ ldb_oom(io->ac->module->ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ for (i=0; i < ARRAY_SIZE(wdigest); i++) {
+ struct MD5Context md5;
+ MD5Init(&md5);
+ if (wdigest[i].nt4dom) {
+ MD5Update(&md5, wdigest[i].nt4dom->data, wdigest[i].nt4dom->length);
+ MD5Update(&md5, backslash.data, backslash.length);
+ }
+ MD5Update(&md5, wdigest[i].user->data, wdigest[i].user->length);
+ MD5Update(&md5, delim.data, delim.length);
+ if (wdigest[i].realm) {
+ MD5Update(&md5, wdigest[i].realm->data, wdigest[i].realm->length);
+ }
+ MD5Update(&md5, delim.data, delim.length);
+ MD5Update(&md5, cleartext.data, cleartext.length);
+ MD5Final(pdb->hashes[i].hash, &md5);
+ }
+
+ return LDB_SUCCESS;
+}
+
static int setup_supplemental_field(struct setup_password_fields_io *io)
{
struct supplementalCredentialsBlob scb;
struct supplementalCredentialsBlob _old_scb;
struct supplementalCredentialsBlob *old_scb = NULL;
- /* Packages + (Kerberos and maybe CLEARTEXT) */
- uint32_t num_packages = 1 + 1;
- struct supplementalCredentialsPackage packages[1+2];
+ /* Packages + (Kerberos, WDigest and maybe CLEARTEXT) */
+ uint32_t num_packages = 1 + 2;
+ struct supplementalCredentialsPackage packages[1+3];
struct supplementalCredentialsPackage *pp = &packages[0];
struct supplementalCredentialsPackage *pk = &packages[1];
+ struct supplementalCredentialsPackage *pd = &packages[2];
struct supplementalCredentialsPackage *pc = NULL;
struct package_PackagesBlob pb;
DATA_BLOB pb_blob;
@@ -520,6 +857,9 @@ static int setup_supplemental_field(struct setup_password_fields_io *io)
struct package_PrimaryKerberosBlob pkb;
DATA_BLOB pkb_blob;
char *pkb_hexstr;
+ struct package_PrimaryWDigestBlob pdb;
+ DATA_BLOB pdb_blob;
+ char *pdb_hexstr;
struct package_PrimaryCLEARTEXTBlob pcb;
DATA_BLOB pcb_blob;
char *pcb_hexstr;
@@ -554,11 +894,11 @@ static int setup_supplemental_field(struct setup_password_fields_io *io)
if (io->domain->store_cleartext &&
(io->u.user_account_control & UF_ENCRYPTED_TEXT_PASSWORD_ALLOWED)) {
- pc = &packages[2];
+ pc = &packages[3];
num_packages++;
}
- /* Kerberos, CLEARTEXT and termination(counted by the Packages element) */
+ /* Kerberos, WDigest, CLEARTEXT and termination(counted by the Packages element) */
pb.names = talloc_zero_array(io->ac, const char *, num_packages);
/*
@@ -601,10 +941,38 @@ static int setup_supplemental_field(struct setup_password_fields_io *io)
pk->data = pkb_hexstr;
/*
+ * setup 'Primary:WDigest' element
+ */
+ pb.names[1] = "WDigest";
+
+ ret = setup_primary_wdigest(io, old_scb, &pdb);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ status = ndr_push_struct_blob(&pdb_blob, io->ac, &pdb,
+ (ndr_push_flags_fn_t)ndr_push_package_PrimaryWDigestBlob);
+ if (!NT_STATUS_IS_OK(status)) {
+ ldb_asprintf_errstring(io->ac->module->ldb,
+ "setup_supplemental_field: "
+ "failed to push package_PrimaryWDigestBlob: %s",
+ nt_errstr(status));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ pdb_hexstr = data_blob_hex_string(io->ac, &pdb_blob);
+ if (!pdb_hexstr) {
+ ldb_oom(io->ac->module->ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ pd->name = "Primary:WDigest";
+ pd->unknown1 = 1;
+ pd->data = pdb_hexstr;
+
+ /*
* setup 'Primary:CLEARTEXT' element
*/
if (pc) {
- pb.names[1] = "CLEARTEXT";
+ pb.names[2] = "CLEARTEXT";
pcb.cleartext = io->n.cleartext;
@@ -915,6 +1283,15 @@ static struct domain_data *get_domain_data(struct ldb_module *module, void *ctx,
ldb_debug(module->ldb, LDB_DEBUG_ERROR, "Out of memory!\n");
return NULL;
}
+ p = strchr(tmp, '.');
+ if (p) {
+ p[0] = '\0';
+ }
+ data->netbios_domain = strupper_talloc(data, tmp);
+ if (data->netbios_domain == NULL) {
+ ldb_debug(module->ldb, LDB_DEBUG_ERROR, "Out of memory!\n");
+ return NULL;
+ }
}
return data;
generated by cgit (git 2.34.1) at 2024-12-21 06:55:26 +0000