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Software >> OS >> Windows >> Security >> What is the format of the Security Descriptor Definition Language (SDDL)

Overview of SDDL (security descriptor definition language) O:ooG:ggD:dd(ACE1)(ACE2)(ACE3)S:ss where O:oo => oo is the owner G:gg => gg is the primary group D:dd => dd is the DACL flag (discretionary ACL) S:ss => ss is the SACL (?) (ACE1)(ACE2)... are the list of DACL ACEs Example ACEs :- A;;0x1;;;AU => A is for allowed access => 0x1 means first bit #1 is on => read allowed => AU means Authenticated users A;;0x2;;;AU => A is for allowed access => 0x2 means first bit #2 is on => write allowed => AU means Authenticated users A;;0x4;;;AU => A is for allowed access => 0x4 means first bit #3 is on => clear allowed => AU means Authenticated users ACE FORMAT :- ace_type;ace_flags;rights;object_guid;inherit_object_guid;account_sid ACE type string Constant in Sddl.h AceType value "A" SDDL_ACCESS_ALLOWED ACCESS_ALLOWED_ACE_TYPE "D" SDDL_ACCESS_DENIED ACCESS_DENIED_ACE_TYPE "OA" SDDL_OBJECT_ACCESS_ALLOWED ACCESS_ALLOWED_OBJECT_ACE_TYPE "OD" SDDL_OBJECT_ACCESS_DENIED ACCESS_DENIED_OBJECT_ACE_TYPE "AU" SDDL_AUDIT SYSTEM_AUDIT_ACE_TYPE "AL" SDDL_ALARM SYSTEM_ALARM_ACE_TYPE "OU" SDDL_OBJECT_AUDIT SYSTEM_AUDIT_OBJECT_ACE_TYPE "OL" SDDL_OBJECT_ALARM SYSTEM_ALARM_OBJECT_ACE_TYPE ACE flags string Constant in Sddl.h AceFlag value "CI" SDDL_CONTAINER_INHERIT CONTAINER_INHERIT_ACE "OI" SDDL_OBJECT_INHERIT OBJECT_INHERIT_ACE "NP" SDDL_NO_PROPAGATE NO_PROPAGATE_INHERIT_ACE "IO" SDDL_INHERIT_ONLY INHERIT_ONLY_ACE "ID" SDDL_INHERITED INHERITED_ACE "SA" SDDL_AUDIT_SUCCESS SUCCESSFUL_ACCESS_ACE_FLAG "FA" SDDL_AUDIT_FAILURE FAILED_ACCESS_ACE_FLAG Access rights string Constant in Sddl.h Access right value Generic access rights "GA" SDDL_GENERIC_ALL GENERIC_ALL "GR" SDDL_GENERIC_READ GENERIC_READ "GW" SDDL_GENERIC_WRITE GENERIC_WRITE "GX" SDDL_GENERIC_EXECUTE GENERIC_EXECUTE Standard access rights "RC" SDDL_READ_CONTROL READ_CONTROL "SD" SDDL_STANDARD_DELETE DELETE "WD" SDDL_WRITE_DAC WRITE_DAC "WO" SDDL_WRITE_OWNER WRITE_OWNER Directory service object access rights "RP" SDDL_READ_PROPERTY ADS_RIGHT_DS_READ_PROP "WP" SDDL_WRITE_PROPERTY ADS_RIGHT_DS_WRITE_PROP "CC" SDDL_CREATE_CHILD ADS_RIGHT_DS_CREATE_CHILD "DC" SDDL_DELETE_CHILD ADS_RIGHT_DS_DELETE_CHILD "LC" SDDL_LIST_CHILDREN ADS_RIGHT_DS_LIST "SW" SDDL_SELF_WRITE ADS_RIGHT_DS_SELF "LO" SDDL_LIST_OBJECT ADS_RIGHT_DS_LIST_OBJECT "DT" SDDL_DELETE_TREE ADS_RIGHT_DS_DELETE_TREE "CR" SDDL_CONTROL_ACCESS ADS_RIGHT_DS_CONTROL_ACCESS File access rights "FA" SDDL_FILE_ALL FILE_ALL_ACCESS "FR" SDDL_FILE_READ FILE_GENERIC_READ "FW" SDDL_FILE_WRITE FILE_GENERIC_WRITE "FX" SDDL_FILE_EXECUTE FILE_GENERIC_EXECUTE Registry key access rights "KA" SDDL_KEY_ALL KEY_ALL_ACCESS "KR" SDDL_KEY_READ KEY_READ "KW" SDDL_KEY_WRITE KEY_WRITE "KX" SDDL_KEY_EXECUTE KEY_EXECUTE SID string Constant in Sddl.h Account alias and corresponding RID "AO" SDDL_ACCOUNT_OPERATORS Account operators. The corresponding RID is DOMAIN_ALIAS_RID_ACCOUNT_OPS. "RU" SDDL_ALIAS_PREW2KCOMPACC Alias to grant permissions to accounts that use applications compatible with Windows NT 4.0 operating systems. The corresponding RID is DOMAIN_ALIAS_RID_PREW2KCOMPACCESS. "AN" SDDL_ANONYMOUS Anonymous logon. The corresponding RID is SECURITY_ANONYMOUS_LOGON_RID. "AU" SDDL_AUTHENTICATED_USERS Authenticated users. The corresponding RID is SECURITY_AUTHENTICATED_USER_RID. "BA" SDDL_BUILTIN_ADMINISTRATORS Built-in administrators. The corresponding RID is DOMAIN_ALIAS_RID_ADMINS. "BG" SDDL_BUILTIN_GUESTS Built-in guests. The corresponding RID is DOMAIN_ALIAS_RID_GUESTS. "BO" SDDL_BACKUP_OPERATORS Backup operators. The corresponding RID is DOMAIN_ALIAS_RID_BACKUP_OPS. "BU" SDDL_BUILTIN_USERS Built-in users. The corresponding RID is DOMAIN_ALIAS_RID_USERS. "CA" SDDL_CERT_SERV_ADMINISTRATORS Certificate publishers. The corresponding RID is DOMAIN_GROUP_RID_CERT_ADMINS. "CG" SDDL_CREATOR_GROUP Creator group. The corresponding RID is SECURITY_CREATOR_GROUP_RID. "CO" SDDL_CREATOR_OWNER Creator owner. The corresponding RID is SECURITY_CREATOR_OWNER_RID. "DA" SDDL_DOMAIN_ADMINISTRATORS Domain administrators. The corresponding RID is DOMAIN_GROUP_RID_ADMINS. "DC" SDDL_DOMAIN_COMPUTERS Domain computers. The corresponding RID is DOMAIN_GROUP_RID_COMPUTERS. "DD" SDDL_DOMAIN_DOMAIN_CONTROLLERS Domain controllers. The corresponding RID is DOMAIN_GROUP_RID_CONTROLLERS. "DG" SDDL_DOMAIN_GUESTS Domain guests. The corresponding RID is DOMAIN_GROUP_RID_GUESTS. "DU" SDDL_DOMAIN_USERS Domain users. The corresponding RID is DOMAIN_GROUP_RID_USERS. "EA" SDDL_ENTERPRISE_ADMINS Enterprise administrators. The corresponding RID is DOMAIN_GROUP_RID_ENTERPRISE_ADMINS. "ED" SDDL_ENTERPRISE_DOMAIN_CONTROLLERS Enterprise domain controllers. The corresponding RID is SECURITY_SERVER_LOGON_RID. "WD" SDDL_EVERYONE Everyone. The corresponding RID is SECURITY_WORLD_RID. "PA" SDDL_GROUP_POLICY_ADMINS Group Policy administrators. The corresponding RID is DOMAIN_GROUP_RID_POLICY_ADMINS. "IU" SDDL_INTERACTIVE Interactively logged-on user. This is a group identifier added to the token of a process when it was logged on interactively. The corresponding logon type is LOGON32_LOGON_INTERACTIVE. The corresponding RID is SECURITY_INTERACTIVE_RID. "LA" SDDL_LOCAL_ADMIN Local administrator. The corresponding RID is DOMAIN_USER_RID_ADMIN. "LG" SDDL_LOCAL_GUEST Local guest. The corresponding RID is DOMAIN_USER_RID_GUEST. "LS" SDDL_LOCAL_SERVICE Local service account. The corresponding RID is SECURITY_LOCAL_SERVICE_RID. "SY" SDDL_LOCAL_SYSTEM Local system. The corresponding RID is SECURITY_LOCAL_SYSTEM_RID. "NU" SDDL_NETWORK Network logon user. This is a group identifier added to the token of a process when it was logged on across a network. The corresponding logon type is LOGON32_LOGON_NETWORK. The corresponding RID is SECURITY_NETWORK_RID. "NO" SDDL_NETWORK_CONFIGURATION_OPS Network configuration operators. The corresponding RID is DOMAIN_ALIAS_RID_NETWORK_CONFIGURATION_OPS. "NS" SDDL_NETWORK_SERVICE Network service account. The corresponding RID is SECURITY_NETWORK_SERVICE_RID. "PO" SDDL_PRINTER_OPERATORS Printer operators. The corresponding RID is DOMAIN_ALIAS_RID_PRINT_OPS. "PS" SDDL_PERSONAL_SELF Principal self. The corresponding RID is SECURITY_PRINCIPAL_SELF_RID. "PU" SDDL_POWER_USERS Power users. The corresponding RID is DOMAIN_ALIAS_RID_POWER_USERS. "RS" SDDL_RAS_SERVERS RAS servers group. The corresponding RID is DOMAIN_ALIAS_RID_RAS_SERVERS. "RD" SDDL_REMOTE_DESKTOP Terminal server users. The corresponding RID is DOMAIN_ALIAS_RID_REMOTE_DESKTOP_USERS. "RE" SDDL_REPLICATOR Replicator. The corresponding RID is DOMAIN_ALIAS_RID_REPLICATOR. "RC" SDDL_RESTRICTED_CODE Restricted code. This is a restricted token created using the CreateRestrictedToken function. The corresponding RID is SECURITY_RESTRICTED_CODE_RID. "SA" SDDL_SCHEMA_ADMINISTRATORS Schema administrators. The corresponding RID is DOMAIN_GROUP_RID_SCHEMA_ADMINS. "SO" SDDL_SERVER_OPERATORS Server operators. The corresponding RID is DOMAIN_ALIAS_RID_SYSTEM_OPS. "SU" SDDL_SERVICE Service logon user. This is a group identifier added to the token of a process when it was logged as a service. The corresponding logon type is LOGON32_LOGON_SERVICE. The corresponding RID is SECURITY_SERVICE_RID.
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