r21470: generate Primary:WDigest blob with precalculated digest-md5 hashes:
authorStefan Metzmacher <metze@samba.org>
Tue, 20 Feb 2007 16:22:50 +0000 (16:22 +0000)
committerGerald (Jerry) Carter <jerry@samba.org>
Wed, 10 Oct 2007 19:48:40 +0000 (14:48 -0500)
see http://technet2.microsoft.com/WindowsServer/en/library/717b450c-f4a0-4cc9-86f4-cc0633aae5f91033.mspx?mfr=true
for how the hashes are supposed to be (but w2k3 doesn't to some correctly...)

this is a verify nice tool to test the hash genaration, but
you need to add support for "" realm strings...
http://fresh.t-systems-sfr.com/unix/src/www/httpauth-0.6.tar.gz:a/httpauth-0.6/tools/mkha1.c

metze
(This used to be commit 26d51741b6aa54c47ee039ac14390f1f0ee51e30)

source4/dsdb/samdb/ldb_modules/password_hash.c

index 861e17e4d054a4e72b089cb4fb274b0b11ff7dc3..780dc69b239d6fb66ff677312ed36ea2fdbf6ea0 100644 (file)
@@ -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);
 
        /*
@@ -600,11 +940,39 @@ static int setup_supplemental_field(struct setup_password_fields_io *io)
        pk->unknown1    = 1;
        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;