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-rw-r--r--source3/lib/ldap_escape.c44
-rw-r--r--source3/lib/smbldap_util.c47
-rw-r--r--source3/libads/ldap.c10
-rw-r--r--source3/libads/ldap_user.c12
-rw-r--r--source3/nsswitch/winbindd_ads.c10
-rw-r--r--source3/passdb/pdb_ldap.c68
-rw-r--r--source3/printing/nt_printing.c24
-rw-r--r--source3/utils/net_ads.c12
-rw-r--r--source3/utils/net_ads_gpo.c1
9 files changed, 198 insertions, 30 deletions
diff --git a/source3/lib/ldap_escape.c b/source3/lib/ldap_escape.c
index 2623088434..8907399be4 100644
--- a/source3/lib/ldap_escape.c
+++ b/source3/lib/ldap_escape.c
@@ -89,3 +89,47 @@ char *escape_ldap_string_alloc(const char *s)
*p = '\0';
return output;
}
+
+char *escape_rdn_val_string_alloc(const char *s)
+{
+ char *output, *p;
+
+ /* The maximum size of the escaped string can be twice the actual size */
+ output = (char *)SMB_MALLOC(2*strlen(s) + 1);
+
+ if (output == NULL) {
+ return NULL;
+ }
+
+ p = output;
+
+ while (*s)
+ {
+ switch (*s)
+ {
+ case ',':
+ case '=':
+ case '+':
+ case '<':
+ case '>':
+ case '#':
+ case ';':
+ case '\\':
+ case '\"':
+ *p++ = '\\';
+ *p++ = *s;
+ break;
+ default:
+ *p = *s;
+ p++;
+ }
+
+ s++;
+ }
+
+ *p = '\0';
+
+ /* resize the string to the actual final size */
+ output = (char *)SMB_REALLOC(output, strlen(output) + 1);
+ return output;
+}
diff --git a/source3/lib/smbldap_util.c b/source3/lib/smbldap_util.c
index aff4eff6f6..11b27bf98f 100644
--- a/source3/lib/smbldap_util.c
+++ b/source3/lib/smbldap_util.c
@@ -39,12 +39,21 @@ static NTSTATUS add_new_domain_account_policies(struct smbldap_state *ldap_state
const char *policy_attr = NULL;
pstring dn;
LDAPMod **mods = NULL;
+ char *escape_domain_name;
DEBUG(3,("add_new_domain_account_policies: Adding new account policies for domain\n"));
-
+
+ escape_domain_name = escape_rdn_val_string_alloc(domain_name);
+ if (!escape_domain_name) {
+ DEBUG(0, ("Out of memory!\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+
pstr_sprintf(dn, "%s=%s,%s",
get_attr_key2string(dominfo_attr_list, LDAP_ATTR_DOMAIN),
- domain_name, lp_ldap_suffix());
+ escape_domain_name, lp_ldap_suffix());
+
+ SAFE_FREE(escape_domain_name);
for (i=1; decode_account_policy_name(i) != NULL; i++) {
@@ -104,10 +113,20 @@ static NTSTATUS add_new_domain_info(struct smbldap_state *ldap_state,
LDAPMessage *result = NULL;
int num_result;
const char **attr_list;
+ char *escape_domain_name;
+
+ /* escape for filter */
+ escape_domain_name = escape_ldap_string_alloc(domain_name);
+ if (!escape_domain_name) {
+ DEBUG(0, ("Out of memory!\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
slprintf (filter, sizeof (filter) - 1, "(&(%s=%s)(objectclass=%s))",
get_attr_key2string(dominfo_attr_list, LDAP_ATTR_DOMAIN),
- domain_name, LDAP_OBJ_DOMINFO);
+ escape_domain_name, LDAP_OBJ_DOMINFO);
+
+ SAFE_FREE(escape_domain_name);
attr_list = get_attr_list( NULL, dominfo_attr_list );
rc = smbldap_search_suffix(ldap_state, filter, attr_list, &result);
@@ -129,9 +148,18 @@ static NTSTATUS add_new_domain_info(struct smbldap_state *ldap_state,
/* Check if we need to add an entry */
DEBUG(3,("add_new_domain_info: Adding new domain\n"));
+ /* this time escape for DN */
+ escape_domain_name = escape_rdn_val_string_alloc(domain_name);
+ if (!escape_domain_name) {
+ DEBUG(0, ("Out of memory!\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+
pstr_sprintf(dn, "%s=%s,%s",
get_attr_key2string(dominfo_attr_list, LDAP_ATTR_DOMAIN),
- domain_name, lp_ldap_suffix());
+ escape_domain_name, lp_ldap_suffix());
+
+ SAFE_FREE(escape_domain_name);
/* Free original search */
ldap_msgfree(result);
@@ -210,11 +238,20 @@ NTSTATUS smbldap_search_domain_info(struct smbldap_state *ldap_state,
int rc;
const char **attr_list;
int count;
+ char *escape_domain_name;
+
+ escape_domain_name = escape_ldap_string_alloc(domain_name);
+ if (!escape_domain_name) {
+ DEBUG(0, ("Out of memory!\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
pstr_sprintf(filter, "(&(objectClass=%s)(%s=%s))",
LDAP_OBJ_DOMINFO,
get_attr_key2string(dominfo_attr_list, LDAP_ATTR_DOMAIN),
- domain_name);
+ escape_domain_name);
+
+ SAFE_FREE(escape_domain_name);
DEBUG(2, ("smbldap_search_domain_info: Searching for:[%s]\n", filter));
diff --git a/source3/libads/ldap.c b/source3/libads/ldap.c
index dfc68fdc2b..e9d8bf6bbf 100644
--- a/source3/libads/ldap.c
+++ b/source3/libads/ldap.c
@@ -1635,6 +1635,7 @@ ADS_STATUS ads_create_machine_acct(ADS_STRUCT *ads, const char *machine_name,
char *samAccountName, *controlstr;
TALLOC_CTX *ctx;
ADS_MODLIST mods;
+ char *machine_escaped;
char *new_dn;
const char *objectClass[] = {"top", "person", "organizationalPerson",
"user", "computer", NULL};
@@ -1647,8 +1648,13 @@ ADS_STATUS ads_create_machine_acct(ADS_STRUCT *ads, const char *machine_name,
return ADS_ERROR(LDAP_NO_MEMORY);
ret = ADS_ERROR(LDAP_NO_MEMORY);
-
- new_dn = talloc_asprintf(ctx, "cn=%s,%s", machine_name, org_unit);
+
+ machine_escaped = escape_rdn_val_string_alloc(machine_name);
+ if (!machine_escaped) {
+ goto done;
+ }
+
+ new_dn = talloc_asprintf(ctx, "cn=%s,%s", machine_escaped, org_unit);
samAccountName = talloc_asprintf(ctx, "%s$", machine_name);
if ( !new_dn || !samAccountName ) {
diff --git a/source3/libads/ldap_user.c b/source3/libads/ldap_user.c
index 66d94d29d3..afbbc0b421 100644
--- a/source3/libads/ldap_user.c
+++ b/source3/libads/ldap_user.c
@@ -50,6 +50,7 @@ ADS_STATUS ads_add_user_acct(ADS_STRUCT *ads, const char *user,
ADS_MODLIST mods;
ADS_STATUS status;
const char *upn, *new_dn, *name, *controlstr;
+ char *name_escaped = NULL;
const char *objectClass[] = {"top", "person", "organizationalPerson",
"user", NULL};
@@ -63,7 +64,9 @@ ADS_STATUS ads_add_user_acct(ADS_STRUCT *ads, const char *user,
if (!(upn = talloc_asprintf(ctx, "%s@%s", user, ads->config.realm)))
goto done;
- if (!(new_dn = talloc_asprintf(ctx, "cn=%s,%s,%s", name, container,
+ if (!(name_escaped = escape_rdn_val_string_alloc(name)))
+ goto done;
+ if (!(new_dn = talloc_asprintf(ctx, "cn=%s,%s,%s", name_escaped, container,
ads->config.bind_path)))
goto done;
if (!(controlstr = talloc_asprintf(ctx, "%u", (UF_NORMAL_ACCOUNT | UF_ACCOUNTDISABLE))))
@@ -81,6 +84,7 @@ ADS_STATUS ads_add_user_acct(ADS_STRUCT *ads, const char *user,
status = ads_gen_add(ads, new_dn, mods);
done:
+ SAFE_FREE(name_escaped);
talloc_destroy(ctx);
return status;
}
@@ -92,6 +96,7 @@ ADS_STATUS ads_add_group_acct(ADS_STRUCT *ads, const char *group,
ADS_MODLIST mods;
ADS_STATUS status;
char *new_dn;
+ char *name_escaped = NULL;
const char *objectClass[] = {"top", "group", NULL};
if (!(ctx = talloc_init("ads_add_group_acct")))
@@ -99,7 +104,9 @@ ADS_STATUS ads_add_group_acct(ADS_STRUCT *ads, const char *group,
status = ADS_ERROR(LDAP_NO_MEMORY);
- if (!(new_dn = talloc_asprintf(ctx, "cn=%s,%s,%s", group, container,
+ if (!(name_escaped = escape_rdn_val_string_alloc(group)))
+ goto done;
+ if (!(new_dn = talloc_asprintf(ctx, "cn=%s,%s,%s", name_escaped, container,
ads->config.bind_path)))
goto done;
if (!(mods = ads_init_mods(ctx)))
@@ -114,6 +121,7 @@ ADS_STATUS ads_add_group_acct(ADS_STRUCT *ads, const char *group,
status = ads_gen_add(ads, new_dn, mods);
done:
+ SAFE_FREE(name_escaped);
talloc_destroy(ctx);
return status;
}
diff --git a/source3/nsswitch/winbindd_ads.c b/source3/nsswitch/winbindd_ads.c
index 7fcdec0b7d..9c8f23b1cf 100644
--- a/source3/nsswitch/winbindd_ads.c
+++ b/source3/nsswitch/winbindd_ads.c
@@ -607,7 +607,6 @@ static NTSTATUS lookup_usergroups_memberof(struct winbindd_domain *domain,
const char *attrs[] = {"memberOf", NULL};
size_t num_groups = 0;
DOM_SID *group_sids = NULL;
- char *escaped_dn;
int i;
DEBUG(3,("ads: lookup_usergroups_memberof\n"));
@@ -619,16 +618,9 @@ static NTSTATUS lookup_usergroups_memberof(struct winbindd_domain *domain,
goto done;
}
- if (!(escaped_dn = escape_ldap_string_alloc(user_dn))) {
- status = NT_STATUS_NO_MEMORY;
- goto done;
- }
-
- rc = ads_search_retry_extended_dn(ads, &res, escaped_dn, attrs,
+ rc = ads_search_retry_extended_dn(ads, &res, user_dn, attrs,
ADS_EXTENDED_DN_HEX_STRING);
- SAFE_FREE(escaped_dn);
-
if (!ADS_ERR_OK(rc) || !res) {
DEBUG(1,("lookup_usergroups_memberof ads_search member=%s: %s\n",
user_dn, ads_errstr(rc)));
diff --git a/source3/passdb/pdb_ldap.c b/source3/passdb/pdb_ldap.c
index 533b936efd..4edffe97d9 100644
--- a/source3/passdb/pdb_ldap.c
+++ b/source3/passdb/pdb_ldap.c
@@ -2049,14 +2049,25 @@ static NTSTATUS ldapsam_add_sam_account(struct pdb_methods *my_methods, struct s
TALLOC_FREE( attr_list );
if (num_result == 0) {
+ char *escape_username;
/* Check if we need to add an entry */
DEBUG(3,("ldapsam_add_sam_account: Adding new user\n"));
ldap_op = LDAP_MOD_ADD;
+
+ escape_username = escape_rdn_val_string_alloc(username);
+ if (!escape_username) {
+ DEBUG(0, ("Out of memory!\n"));
+ ldap_msgfree(result);
+ return NT_STATUS_NO_MEMORY;
+ }
+
if (username[strlen(username)-1] == '$') {
- slprintf (dn, sizeof (dn) - 1, "uid=%s,%s", username, lp_ldap_machine_suffix ());
+ slprintf (dn, sizeof (dn) - 1, "uid=%s,%s", escape_username, lp_ldap_machine_suffix ());
} else {
- slprintf (dn, sizeof (dn) - 1, "uid=%s,%s", username, lp_ldap_user_suffix ());
+ slprintf (dn, sizeof (dn) - 1, "uid=%s,%s", escape_username, lp_ldap_user_suffix ());
}
+
+ SAFE_FREE(escape_username);
}
if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
@@ -2415,11 +2426,21 @@ static NTSTATUS ldapsam_enum_group_members(struct pdb_methods *methods,
}
for (memberuid = values; *memberuid != NULL; memberuid += 1) {
- filter = talloc_asprintf_append(filter, "(uid=%s)", *memberuid);
+ char *escape_memberuid;
+
+ escape_memberuid = escape_ldap_string_alloc(*memberuid);
+ if (escape_memberuid == NULL) {
+ ret = NT_STATUS_NO_MEMORY;
+ goto done;
+ }
+
+ filter = talloc_asprintf_append(filter, "(uid=%s)", escape_memberuid);
if (filter == NULL) {
ret = NT_STATUS_NO_MEMORY;
goto done;
}
+
+ SAFE_FREE(escape_memberuid);
}
filter = talloc_asprintf_append(filter, "))");
@@ -4773,6 +4794,8 @@ static NTSTATUS ldapsam_create_user(struct pdb_methods *my_methods,
smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_SAMBASAMACCOUNT);
if (add_posix) {
+ char *escape_name;
+
DEBUG(3,("ldapsam_create_user: Creating new posix user\n"));
/* retrieve the Domain Users group gid */
@@ -4799,12 +4822,21 @@ static NTSTATUS ldapsam_create_user(struct pdb_methods *my_methods,
}
uidstr = talloc_asprintf(tmp_ctx, "%d", uid);
gidstr = talloc_asprintf(tmp_ctx, "%d", gid);
+
+ escape_name = escape_rdn_val_string_alloc(name);
+ if (!escape_name) {
+ DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+
if (is_machine) {
- dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", name, lp_ldap_machine_suffix ());
+ dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", escape_name, lp_ldap_machine_suffix ());
} else {
- dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", name, lp_ldap_user_suffix ());
+ dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", escape_name, lp_ldap_user_suffix ());
}
+ SAFE_FREE(escape_name);
+
if (!homedir || !shell || !uidstr || !gidstr || !dn) {
DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
return NT_STATUS_NO_MEMORY;
@@ -4986,6 +5018,8 @@ static NTSTATUS ldapsam_create_dom_group(struct pdb_methods *my_methods,
}
if (num_result == 0) {
+ char *escape_name;
+
DEBUG(3,("ldapsam_create_user: Creating new posix group\n"));
is_new_entry = True;
@@ -4997,7 +5031,16 @@ static NTSTATUS ldapsam_create_dom_group(struct pdb_methods *my_methods,
}
gidstr = talloc_asprintf(tmp_ctx, "%d", gid);
- dn = talloc_asprintf(tmp_ctx, "cn=%s,%s", name, lp_ldap_group_suffix());
+
+ escape_name = escape_rdn_val_string_alloc(name);
+ if (!escape_name) {
+ DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ dn = talloc_asprintf(tmp_ctx, "cn=%s,%s", escape_name, lp_ldap_group_suffix());
+
+ SAFE_FREE(escape_name);
if (!gidstr || !dn) {
DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
@@ -5335,6 +5378,7 @@ static NTSTATUS ldapsam_set_primary_group(struct pdb_methods *my_methods,
uint32 num_result;
LDAPMod **mods = NULL;
char *filter;
+ char *escape_username;
char *gidstr;
const char *dn = NULL;
gid_t gid;
@@ -5351,14 +5395,22 @@ static NTSTATUS ldapsam_set_primary_group(struct pdb_methods *my_methods,
DEBUG(0,("ldapsam_set_primary_group: Out of Memory!\n"));
return NT_STATUS_NO_MEMORY;
}
-
+
+ escape_username = escape_ldap_string_alloc(pdb_get_username(sampass));
+ if (escape_username== NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
filter = talloc_asprintf(mem_ctx,
"(&(uid=%s)"
"(objectClass=%s)"
"(objectClass=%s))",
- pdb_get_username(sampass),
+ escape_username,
LDAP_OBJ_POSIXACCOUNT,
LDAP_OBJ_SAMBASAMACCOUNT);
+
+ SAFE_FREE(escape_username);
+
if (filter == NULL) {
return NT_STATUS_NO_MEMORY;
}
diff --git a/source3/printing/nt_printing.c b/source3/printing/nt_printing.c
index 652726c401..77b31bc517 100644
--- a/source3/printing/nt_printing.c
+++ b/source3/printing/nt_printing.c
@@ -3034,7 +3034,7 @@ static WERROR nt_printer_publish_ads(ADS_STRUCT *ads,
{
ADS_STATUS ads_rc;
LDAPMessage *res;
- char *prt_dn = NULL, *srv_dn, *srv_cn_0;
+ char *prt_dn = NULL, *srv_dn, *srv_cn_0, *srv_cn_escaped, *sharename_escaped;
char *srv_dn_utf8, **srv_cn_utf8;
TALLOC_CTX *ctx;
ADS_MODLIST mods;
@@ -3080,11 +3080,29 @@ static WERROR nt_printer_publish_ads(ADS_STRUCT *ads,
ldap_memfree(srv_dn_utf8);
ldap_memfree(srv_cn_utf8);
- asprintf(&prt_dn, "cn=%s-%s,%s", srv_cn_0,
- printer->info_2->sharename, srv_dn);
+ srv_cn_escaped = escape_rdn_val_string_alloc(srv_cn_0);
+ if (!srv_cn_escaped) {
+ SAFE_FREE(srv_cn_0);
+ ldap_memfree(srv_dn_utf8);
+ ads_destroy(&ads);
+ return WERR_SERVER_UNAVAILABLE;
+ }
+ sharename_escaped = escape_rdn_val_string_alloc(printer->info_2->sharename);
+ if (!sharename_escaped) {
+ SAFE_FREE(srv_cn_escaped);
+ SAFE_FREE(srv_cn_0);
+ ldap_memfree(srv_dn_utf8);
+ ads_destroy(&ads);
+ return WERR_SERVER_UNAVAILABLE;
+ }
+
+
+ asprintf(&prt_dn, "cn=%s-%s,%s", srv_cn_escaped, sharename_escaped, srv_dn);
SAFE_FREE(srv_dn);
SAFE_FREE(srv_cn_0);
+ SAFE_FREE(srv_cn_escaped);
+ SAFE_FREE(sharename_escaped);
/* build the ads mods */
ctx = talloc_init("nt_printer_publish_ads");
diff --git a/source3/utils/net_ads.c b/source3/utils/net_ads.c
index f2fa807322..cb5b08c672 100644
--- a/source3/utils/net_ads.c
+++ b/source3/utils/net_ads.c
@@ -1819,6 +1819,7 @@ static int net_ads_printer_publish(int argc, const char **argv)
TALLOC_CTX *mem_ctx = talloc_init("net_ads_printer_publish");
ADS_MODLIST mods = ads_init_mods(mem_ctx);
char *prt_dn, *srv_dn, **srv_cn;
+ char *srv_cn_escaped, *printername_escaped;
LDAPMessage *res = NULL;
if (!ADS_ERR_OK(ads_startup(True, &ads))) {
@@ -1870,7 +1871,15 @@ static int net_ads_printer_publish(int argc, const char **argv)
srv_dn = ldap_get_dn((LDAP *)ads->ld, (LDAPMessage *)res);
srv_cn = ldap_explode_dn(srv_dn, 1);
- asprintf(&prt_dn, "cn=%s-%s,%s", srv_cn[0], printername, srv_dn);
+ srv_cn_escaped = escape_rdn_val_string_alloc(srv_cn[0]);
+ printername_escaped = escape_rdn_val_string_alloc(printername);
+ if (!srv_cn_escaped || !printername_escaped) {
+ d_fprintf(stderr, "Internal error, out of memory!");
+ ads_destroy(&ads);
+ return -1;
+ }
+
+ asprintf(&prt_dn, "cn=%s-%s,%s", srv_cn_escaped, printername_escaped, srv_dn);
pipe_hnd = cli_rpc_pipe_open_noauth(cli, PI_SPOOLSS, &nt_status);
if (!pipe_hnd) {
@@ -2158,6 +2167,7 @@ static int net_ads_dn_usage(int argc, const char **argv)
"The DN standard LDAP DN, and the attributes are a list of LDAP fields \n"\
"to show in the results\n\n"\
"Example: net ads dn 'CN=administrator,CN=Users,DC=my,DC=domain' sAMAccountName\n\n"
+ "Note: the DN must be provided properly escaped. See RFC 4514 for details\n\n"
);
net_common_flags_usage(argc, argv);
return -1;
diff --git a/source3/utils/net_ads_gpo.c b/source3/utils/net_ads_gpo.c
index 1865aee3d4..9cdc69d989 100644
--- a/source3/utils/net_ads_gpo.c
+++ b/source3/utils/net_ads_gpo.c
@@ -351,6 +351,7 @@ static int net_ads_gpo_add_link(int argc, const char **argv)
if (argc < 2) {
printf("usage: net ads gpo addlink <linkdn> <gpodn> [options]\n");
+ printf("note: DNs must be provided properly escaped.\n See RFC 4514 for details");
return -1;
}
generated by cgit (git 2.34.1) at 2024-12-03 11:33:57 +0000