From 8f078cdf247476fad511bb6d7e00c8654fd26e85 Mon Sep 17 00:00:00 2001 From: Andrew Bartlett Date: Sat, 29 Dec 2012 15:13:54 +1100 Subject: dsdb: Ensure "authenticated users" is processed for group memberships This change moves the addition of "Authenticated Users" from the very end of the token processing to the start. The reason is that we need to see if "Authenticated Users" is a member of other builtin groups, just as we would for any other SID. This picks up the "Pre-Windows 2000 Compatible Access" group, which is in turn often used in ACLs on LDAP objects. Without this change, the eventual token does not contain S-1-5-32-554 and users other than "Administrator" are unable to read uidNumber (in particular). Andrew Bartlett Reviewed-by: Stefan Metzmacher Reviewed-by: Andrew Bartlett --- source4/dsdb/common/util_groups.c | 25 +++++++++++++++++++++++++ source4/dsdb/samdb/samdb.c | 31 ------------------------------- 2 files changed, 25 insertions(+), 31 deletions(-) (limited to 'source4/dsdb') diff --git a/source4/dsdb/common/util_groups.c b/source4/dsdb/common/util_groups.c index b5aecbafe9..6a96ce89d1 100644 --- a/source4/dsdb/common/util_groups.c +++ b/source4/dsdb/common/util_groups.c @@ -126,6 +126,31 @@ NTSTATUS dsdb_expand_nested_groups(struct ldb_context *sam_ctx, filter); } + /* + * We have the problem with the caller creating a + * DN for ForeignSecurityPrincipals as they also have + * duplicate objects with the SAME SID under CN=Configuration. + * This causes a SID= DN to fail with NO_SUCH_OBJECT on Samba + * and on Windows. So, we allow this to fail, and + * double-check if we can find it with a search in the main + * domain partition. + */ + if (ret == LDB_ERR_NO_SUCH_OBJECT && only_childs) { + char *sid_string = dom_sid_string(tmp_ctx, + &sid); + if (!sid_string) { + talloc_free(tmp_ctx); + return NT_STATUS_OK; + } + + ret = dsdb_search(sam_ctx, tmp_ctx, &res, + ldb_get_default_basedn(sam_ctx), + LDB_SCOPE_SUBTREE, + attrs, DSDB_SEARCH_SHOW_EXTENDED_DN, + "(&(objectClass=foreignSecurityPrincipal)(objectSID=%s))", + sid_string); + } + if (ret == LDB_ERR_NO_SUCH_OBJECT) { talloc_free(tmp_ctx); return NT_STATUS_OK; diff --git a/source4/dsdb/samdb/samdb.c b/source4/dsdb/samdb/samdb.c index 713448c4e8..361ece79f0 100644 --- a/source4/dsdb/samdb/samdb.c +++ b/source4/dsdb/samdb/samdb.c @@ -143,37 +143,6 @@ NTSTATUS security_token_create(TALLOC_CTX *mem_ctx, } } - /* - * Finally add the "standard" sids. - * The only difference between guest and "anonymous" - * is the addition of Authenticated_Users. - */ - - if (session_info_flags & AUTH_SESSION_INFO_DEFAULT_GROUPS) { - ptoken->sids = talloc_realloc(ptoken, ptoken->sids, struct dom_sid, ptoken->num_sids + 2); - NT_STATUS_HAVE_NO_MEMORY(ptoken->sids); - - if (!dom_sid_parse(SID_WORLD, &ptoken->sids[ptoken->num_sids])) { - return NT_STATUS_INTERNAL_ERROR; - } - ptoken->num_sids++; - - if (!dom_sid_parse(SID_NT_NETWORK, &ptoken->sids[ptoken->num_sids])) { - return NT_STATUS_INTERNAL_ERROR; - } - ptoken->num_sids++; - } - - if (session_info_flags & AUTH_SESSION_INFO_AUTHENTICATED) { - ptoken->sids = talloc_realloc(ptoken, ptoken->sids, struct dom_sid, ptoken->num_sids + 1); - NT_STATUS_HAVE_NO_MEMORY(ptoken->sids); - - if (!dom_sid_parse(SID_NT_AUTHENTICATED_USERS, &ptoken->sids[ptoken->num_sids])) { - return NT_STATUS_INTERNAL_ERROR; - } - ptoken->num_sids++; - } - /* The caller may have requested simple privilages, for example if there isn't a local DB */ if (session_info_flags & AUTH_SESSION_INFO_SIMPLE_PRIVILEGES) { /* Shortcuts to prevent recursion and avoid lookups */ -- cgit