diff options
| -rw-r--r-- | source4/libnet/libnet_vampire.c | 240 |
1 files changed, 188 insertions, 52 deletions
diff --git a/source4/libnet/libnet_vampire.c b/source4/libnet/libnet_vampire.c index fb6098ed17..69bacb7951 100644 --- a/source4/libnet/libnet_vampire.c +++ b/source4/libnet/libnet_vampire.c @@ -1,6 +1,8 @@ /* Unix SMB/CIFS implementation. + Extract the user/system database from a remote SamSync server + Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004-2005 This program is free software; you can redistribute it and/or modify @@ -23,58 +25,26 @@ #include "libnet/libnet.h" #include "librpc/gen_ndr/ndr_netlogon.h" #include "librpc/gen_ndr/ndr_samr.h" +#include "dlinklist.h" -static NTSTATUS vampire_samdump_handle_user(TALLOC_CTX *mem_ctx, - struct creds_CredentialState *creds, - struct netr_DELTA_ENUM *delta) -{ - uint32_t rid = delta->delta_id_union.rid; - struct netr_DELTA_USER *user = delta->delta_union.user; - const char *username = user->account_name.string; - char *hex_lm_password; - char *hex_nt_password; +struct samsync_secret { + struct samsync_secret *prev, *next; + DATA_BLOB secret; + char *name; + NTTIME mtime; +}; - hex_lm_password = smbpasswd_sethexpwd(mem_ctx, - user->lm_password_present ? &user->lmpassword : NULL, - user->acct_flags); - hex_nt_password = smbpasswd_sethexpwd(mem_ctx, - user->nt_password_present ? &user->ntpassword : NULL, - user->acct_flags); +struct samsync_trusted_domain { + struct samsync_trusted_domain *prev, *next; + struct dom_sid *sid; + char *name; +}; - printf("%s:%d:%s:%s:%s:LCT-%08X\n", username, - rid, hex_lm_password, hex_nt_password, - smbpasswd_encode_acb_info(mem_ctx, user->acct_flags), - (unsigned int)nt_time_to_unix(user->last_password_change)); - - return NT_STATUS_OK; -} +struct samdump_state { + struct samsync_secret *secrets; + struct samsync_trusted_domain *trusted_domains; +}; -static NTSTATUS libnet_samdump_fn(TALLOC_CTX *mem_ctx, - void *private, - struct creds_CredentialState *creds, - enum netr_SamDatabaseID database, - struct netr_DELTA_ENUM *delta, - char **error_string) -{ - NTSTATUS nt_status = NT_STATUS_OK; - *error_string = NULL; - switch (database) { - case SAM_DATABASE_DOMAIN: - { - switch (delta->delta_type) { - case NETR_DELTA_USER: - { - nt_status = vampire_samdump_handle_user(mem_ctx, - creds, - delta); - break; - } - } - break; - } - } - return nt_status; -} /** * Decrypt and extract the user's passwords. @@ -136,6 +106,27 @@ static NTSTATUS fix_user(TALLOC_CTX *mem_ctx, } /** + * Decrypt and extract the secrets + * + * The writes decrypted secrets back into the structure + */ +static NTSTATUS fix_secret(TALLOC_CTX *mem_ctx, + struct creds_CredentialState *creds, + enum netr_SamDatabaseID database, + struct netr_DELTA_ENUM *delta, + char **error_string) +{ + struct netr_DELTA_SECRET *secret = delta->delta_union.secret; + creds_arcfour_crypt(creds, secret->current_cipher.cipher_data, + secret->current_cipher.maxlen); + + creds_arcfour_crypt(creds, secret->old_cipher.cipher_data, + secret->old_cipher.maxlen); + + return NT_STATUS_OK; +} + +/** * Fix up the delta, dealing with encryption issues so that the final * callback need only do the printing or application logic */ @@ -158,6 +149,15 @@ static NTSTATUS fix_delta(TALLOC_CTX *mem_ctx, error_string); break; } + case NETR_DELTA_SECRET: + { + nt_status = fix_secret(mem_ctx, + creds, + database, + delta, + error_string); + break; + } } return nt_status; } @@ -215,7 +215,7 @@ static NTSTATUS libnet_SamSync_netlogon(struct libnet_context *ctx, TALLOC_CTX * /* We like schannel */ b->flags &= ~DCERPC_AUTH_OPTIONS; - b->flags |= DCERPC_SCHANNEL | DCERPC_SEAL | DCERPC_SCHANNEL_128; + b->flags |= DCERPC_SCHANNEL | DCERPC_SEAL /* | DCERPC_SCHANNEL_128 */; /* Setup schannel */ nt_status = dcerpc_pipe_connect_b(mem_ctx, &p, b, @@ -296,19 +296,156 @@ static NTSTATUS libnet_SamSync_netlogon(struct libnet_context *ctx, TALLOC_CTX * return nt_status; } +static NTSTATUS vampire_samdump_handle_user(TALLOC_CTX *mem_ctx, + struct creds_CredentialState *creds, + struct netr_DELTA_ENUM *delta) +{ + uint32_t rid = delta->delta_id_union.rid; + struct netr_DELTA_USER *user = delta->delta_union.user; + const char *username = user->account_name.string; + char *hex_lm_password; + char *hex_nt_password; + + hex_lm_password = smbpasswd_sethexpwd(mem_ctx, + user->lm_password_present ? &user->lmpassword : NULL, + user->acct_flags); + hex_nt_password = smbpasswd_sethexpwd(mem_ctx, + user->nt_password_present ? &user->ntpassword : NULL, + user->acct_flags); + + printf("%s:%d:%s:%s:%s:LCT-%08X\n", username, + rid, hex_lm_password, hex_nt_password, + smbpasswd_encode_acb_info(mem_ctx, user->acct_flags), + (unsigned int)nt_time_to_unix(user->last_password_change)); + + return NT_STATUS_OK; +} + +static NTSTATUS vampire_samdump_handle_secret(TALLOC_CTX *mem_ctx, + struct samdump_state *samdump_state, + struct creds_CredentialState *creds, + struct netr_DELTA_ENUM *delta) +{ + struct netr_DELTA_SECRET *secret = delta->delta_union.secret; + const char *name = delta->delta_id_union.name; + struct samsync_secret *new = talloc(samdump_state, struct samsync_secret); + + new->name = talloc_reference(new, name); + new->secret = data_blob_talloc(new, secret->current_cipher.cipher_data, secret->current_cipher.maxlen); + new->mtime = secret->current_cipher_set_time; + + DLIST_ADD(samdump_state->secrets, new); + + return NT_STATUS_OK; +} + +static NTSTATUS vampire_samdump_handle_trusted_domain(TALLOC_CTX *mem_ctx, + struct samdump_state *samdump_state, + struct creds_CredentialState *creds, + struct netr_DELTA_ENUM *delta) +{ + struct netr_DELTA_TRUSTED_DOMAIN *trusted_domain = delta->delta_union.trusted_domain; + struct dom_sid *dom_sid = delta->delta_id_union.sid; + + struct samsync_trusted_domain *new = talloc(samdump_state, struct samsync_trusted_domain); + + new->name = talloc_reference(new, trusted_domain->domain_name.string); + new->sid = talloc_reference(new, dom_sid); + + DLIST_ADD(samdump_state->trusted_domains, new); + + return NT_STATUS_OK; +} + +static NTSTATUS libnet_samdump_fn(TALLOC_CTX *mem_ctx, + void *private, + struct creds_CredentialState *creds, + enum netr_SamDatabaseID database, + struct netr_DELTA_ENUM *delta, + char **error_string) +{ + NTSTATUS nt_status = NT_STATUS_OK; + struct samdump_state *samdump_state = private; + + *error_string = NULL; + switch (delta->delta_type) { + case NETR_DELTA_USER: + { + /* not interested in builtin users */ + if (database == SAM_DATABASE_DOMAIN) { + nt_status = vampire_samdump_handle_user(mem_ctx, + creds, + delta); + break; + } + } + case NETR_DELTA_SECRET: + { + nt_status = vampire_samdump_handle_secret(mem_ctx, + samdump_state, + creds, + delta); + break; + } + case NETR_DELTA_TRUSTED_DOMAIN: + { + nt_status = vampire_samdump_handle_trusted_domain(mem_ctx, + samdump_state, + creds, + delta); + break; + } + } + return nt_status; +} + NTSTATUS libnet_SamDump_netlogon(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SamDump *r) { NTSTATUS nt_status; union libnet_SamSync r2; + struct samdump_state *samdump_state = talloc(mem_ctx, struct samdump_state); + + struct samsync_trusted_domain *t; + struct samsync_secret *s; + + if (!samdump_state) { + return NT_STATUS_NO_MEMORY; + } + + samdump_state->secrets = NULL; + samdump_state->trusted_domains = NULL; r2.netlogon.level = LIBNET_SAMDUMP_NETLOGON; r2.netlogon.error_string = NULL; r2.netlogon.delta_fn = libnet_samdump_fn; - r2.netlogon.fn_ctx = NULL; + r2.netlogon.fn_ctx = samdump_state; nt_status = libnet_SamSync_netlogon(ctx, mem_ctx, &r2); r->generic.error_string = r2.netlogon.error_string; - + if (!NT_STATUS_IS_OK(nt_status)) { + return nt_status; + } + + printf("Trusted domains, sids and secrets:\n"); + for (t=samdump_state->trusted_domains; t; t=t->next) { + char *secret_name = talloc_asprintf(mem_ctx, "G$$%s", t->name); + for (s=samdump_state->secrets; s; s=s->next) { + if (StrCaseCmp(s->name, secret_name) == 0) { + char *secret_string; + if (convert_string_talloc(mem_ctx, CH_UTF16, CH_UNIX, + s->secret.data, s->secret.length, + (void **)&secret_string) == -1) { + r->generic.error_string = talloc_asprintf(mem_ctx, + "Could not convert secret for domain %s to a string\n", + t->name); + return NT_STATUS_INVALID_PARAMETER; + } + printf("%s\t%s\t%s\n", + t->name, dom_sid_string(mem_ctx, t->sid), + secret_string); + } + } + } return nt_status; } @@ -318,7 +455,6 @@ NTSTATUS libnet_SamDump_generic(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, { NTSTATUS nt_status; union libnet_SamDump r2; - r2.generic.level = LIBNET_SAMDUMP_NETLOGON; r2.generic.error_string = NULL; nt_status = libnet_SamDump(ctx, mem_ctx, &r2); |