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CVE-2022-32743 dsdb/common: Add FORCE_ALLOW_VALIDATED_DNS_HOSTNAME_SPN_WRITE control

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Passing this control will grant the right to set validated values for
dNSHostName and servicePrincipalName, and non-validated values for other
attributes.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14833

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This commit is contained in:
Joseph Sutton 2022-06-07 17:36:43 +12:00 committed by Douglas Bagnall
parent b95431ab23
commit c2ab1f4696
3 changed files with 14 additions and 0 deletions
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7
source4/dsdb/common/util.c
View File

@ -4546,6 +4546,13 @@ int dsdb_request_add_controls(struct ldb_request *req, uint32_t dsdb_flags)
} }
} }
if (dsdb_flags & DSDB_FLAG_FORCE_ALLOW_VALIDATED_DNS_HOSTNAME_SPN_WRITE) {
ret = ldb_request_add_control(req, DSDB_CONTROL_FORCE_ALLOW_VALIDATED_DNS_HOSTNAME_SPN_WRITE_OID, true, NULL);
if (ret != LDB_SUCCESS) {
return ret;
}
}
return LDB_SUCCESS; return LDB_SUCCESS;
} }

1
source4/dsdb/samdb/ldb_modules/util.h
View File

@ -39,3 +39,4 @@ struct netlogon_samlogon_response;
#define DSDB_FLAG_TOP_MODULE 0x00800000 #define DSDB_FLAG_TOP_MODULE 0x00800000
#define DSDB_FLAG_TRUSTED 0x01000000 #define DSDB_FLAG_TRUSTED 0x01000000
#define DSDB_FLAG_REPLICATED_UPDATE 0x02000000 #define DSDB_FLAG_REPLICATED_UPDATE 0x02000000
#define DSDB_FLAG_FORCE_ALLOW_VALIDATED_DNS_HOSTNAME_SPN_WRITE 0x04000000

6
source4/dsdb/samdb/samdb.h
View File

@ -226,6 +226,12 @@ struct dsdb_control_transaction_identifier {
struct GUID transaction_guid; struct GUID transaction_guid;
}; };
/*
* passed when we want to allow validated writes to dNSHostName and
* servicePrincipalName.
*/
#define DSDB_CONTROL_FORCE_ALLOW_VALIDATED_DNS_HOSTNAME_SPN_WRITE_OID "1.3.6.1.4.1.7165.4.3.35"
#define DSDB_EXTENDED_REPLICATED_OBJECTS_OID "1.3.6.1.4.1.7165.4.4.1" #define DSDB_EXTENDED_REPLICATED_OBJECTS_OID "1.3.6.1.4.1.7165.4.4.1"
struct dsdb_extended_replicated_object { struct dsdb_extended_replicated_object {
struct ldb_message *msg; struct ldb_message *msg;