import binascii import codecs import json import re import datetime from enum import Enum from impacket.ldap import ldaptypes from impacket.uuid import bin_to_string from cme.helpers.msada_guids import SCHEMA_OBJECTS, EXTENDED_RIGHTS from ldap3.protocol.formatters.formatters import format_sid from ldap3.utils.conv import escape_filter_chars from ldap3.protocol.microsoft import security_descriptor_control OBJECT_TYPES_GUID = {} OBJECT_TYPES_GUID.update(SCHEMA_OBJECTS) OBJECT_TYPES_GUID.update(EXTENDED_RIGHTS) # Universal SIDs WELL_KNOWN_SIDS = { "S-1-0": "Null Authority", "S-1-0-0": "Nobody", "S-1-1": "World Authority", "S-1-1-0": "Everyone", "S-1-2": "Local Authority", "S-1-2-0": "Local", "S-1-2-1": "Console Logon", "S-1-3": "Creator Authority", "S-1-3-0": "Creator Owner", "S-1-3-1": "Creator Group", "S-1-3-2": "Creator Owner Server", "S-1-3-3": "Creator Group Server", "S-1-3-4": "Owner Rights", "S-1-5-80-0": "All Services", "S-1-4": "Non-unique Authority", "S-1-5": "NT Authority", "S-1-5-1": "Dialup", "S-1-5-2": "Network", "S-1-5-3": "Batch", "S-1-5-4": "Interactive", "S-1-5-6": "Service", "S-1-5-7": "Anonymous", "S-1-5-8": "Proxy", "S-1-5-9": "Enterprise Domain Controllers", "S-1-5-10": "Principal Self", "S-1-5-11": "Authenticated Users", "S-1-5-12": "Restricted Code", "S-1-5-13": "Terminal Server Users", "S-1-5-14": "Remote Interactive Logon", "S-1-5-15": "This Organization", "S-1-5-17": "This Organization", "S-1-5-18": "Local System", "S-1-5-19": "NT Authority", "S-1-5-20": "NT Authority", "S-1-5-32-544": "Administrators", "S-1-5-32-545": "Users", "S-1-5-32-546": "Guests", "S-1-5-32-547": "Power Users", "S-1-5-32-548": "Account Operators", "S-1-5-32-549": "Server Operators", "S-1-5-32-550": "Print Operators", "S-1-5-32-551": "Backup Operators", "S-1-5-32-552": "Replicators", "S-1-5-64-10": "NTLM Authentication", "S-1-5-64-14": "SChannel Authentication", "S-1-5-64-21": "Digest Authority", "S-1-5-80": "NT Service", "S-1-5-83-0": "NT VIRTUAL MACHINE\Virtual Machines", "S-1-16-0": "Untrusted Mandatory Level", "S-1-16-4096": "Low Mandatory Level", "S-1-16-8192": "Medium Mandatory Level", "S-1-16-8448": "Medium Plus Mandatory Level", "S-1-16-12288": "High Mandatory Level", "S-1-16-16384": "System Mandatory Level", "S-1-16-20480": "Protected Process Mandatory Level", "S-1-16-28672": "Secure Process Mandatory Level", "S-1-5-32-554": "BUILTIN\Pre-Windows 2000 Compatible Access", "S-1-5-32-555": "BUILTIN\Remote Desktop Users", "S-1-5-32-557": "BUILTIN\Incoming Forest Trust Builders", "S-1-5-32-556": "BUILTIN\\Network Configuration Operators", "S-1-5-32-558": "BUILTIN\Performance Monitor Users", "S-1-5-32-559": "BUILTIN\Performance Log Users", "S-1-5-32-560": "BUILTIN\Windows Authorization Access Group", "S-1-5-32-561": "BUILTIN\Terminal Server License Servers", "S-1-5-32-562": "BUILTIN\Distributed COM Users", "S-1-5-32-569": "BUILTIN\Cryptographic Operators", "S-1-5-32-573": "BUILTIN\Event Log Readers", "S-1-5-32-574": "BUILTIN\Certificate Service DCOM Access", "S-1-5-32-575": "BUILTIN\RDS Remote Access Servers", "S-1-5-32-576": "BUILTIN\RDS Endpoint Servers", "S-1-5-32-577": "BUILTIN\RDS Management Servers", "S-1-5-32-578": "BUILTIN\Hyper-V Administrators", "S-1-5-32-579": "BUILTIN\Access Control Assistance Operators", "S-1-5-32-580": "BUILTIN\Remote Management Users", } # GUID rights enum # GUID thats permits to identify extended rights in an ACE # https://docs.microsoft.com/en-us/windows/win32/adschema/a-rightsguid class RIGHTS_GUID(Enum): WriteMembers = "bf9679c0-0de6-11d0-a285-00aa003049e2" ResetPassword = "00299570-246d-11d0-a768-00aa006e0529" DS_Replication_Get_Changes = "1131f6aa-9c07-11d1-f79f-00c04fc2dcd2" DS_Replication_Get_Changes_All = "1131f6ad-9c07-11d1-f79f-00c04fc2dcd2" # ACE flags enum # New ACE at the end of SACL for inheritance and access return system-audit # https://docs.microsoft.com/en-us/windows/win32/api/securitybaseapi/nf-securitybaseapi-addauditaccessobjectace class ACE_FLAGS(Enum): CONTAINER_INHERIT_ACE = ldaptypes.ACE.CONTAINER_INHERIT_ACE FAILED_ACCESS_ACE_FLAG = ldaptypes.ACE.FAILED_ACCESS_ACE_FLAG INHERIT_ONLY_ACE = ldaptypes.ACE.INHERIT_ONLY_ACE INHERITED_ACE = ldaptypes.ACE.INHERITED_ACE NO_PROPAGATE_INHERIT_ACE = ldaptypes.ACE.NO_PROPAGATE_INHERIT_ACE OBJECT_INHERIT_ACE = ldaptypes.ACE.OBJECT_INHERIT_ACE SUCCESSFUL_ACCESS_ACE_FLAG = ldaptypes.ACE.SUCCESSFUL_ACCESS_ACE_FLAG # ACE flags enum # For an ACE, flags that indicate if the ObjectType and the InheritedObjecType are set with a GUID # Since these two flags are the same for Allowed and Denied access, the same class will be used from 'ldaptypes' # https://docs.microsoft.com/en-us/windows/win32/api/winnt/ns-winnt-access_allowed_object_ace class OBJECT_ACE_FLAGS(Enum): ACE_OBJECT_TYPE_PRESENT = ldaptypes.ACCESS_ALLOWED_OBJECT_ACE.ACE_OBJECT_TYPE_PRESENT ACE_INHERITED_OBJECT_TYPE_PRESENT = ldaptypes.ACCESS_ALLOWED_OBJECT_ACE.ACE_INHERITED_OBJECT_TYPE_PRESENT # Access Mask enum # Access mask permits to encode principal's rights to an object. This is the rights the principal behind the specified SID has # https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-dtyp/7a53f60e-e730-4dfe-bbe9-b21b62eb790b # https://docs.microsoft.com/en-us/windows/win32/api/iads/ne-iads-ads_rights_enum?redirectedfrom=MSDN class ACCESS_MASK(Enum): # Generic Rights GenericRead = 0x80000000 # ADS_RIGHT_GENERIC_READ GenericWrite = 0x40000000 # ADS_RIGHT_GENERIC_WRITE GenericExecute = 0x20000000 # ADS_RIGHT_GENERIC_EXECUTE GenericAll = 0x10000000 # ADS_RIGHT_GENERIC_ALL # Maximum Allowed access type MaximumAllowed = 0x02000000 # Access System Acl access type AccessSystemSecurity = 0x01000000 # ADS_RIGHT_ACCESS_SYSTEM_SECURITY # Standard access types Synchronize = 0x00100000 # ADS_RIGHT_SYNCHRONIZE WriteOwner = 0x00080000 # ADS_RIGHT_WRITE_OWNER WriteDACL = 0x00040000 # ADS_RIGHT_WRITE_DAC ReadControl = 0x00020000 # ADS_RIGHT_READ_CONTROL Delete = 0x00010000 # ADS_RIGHT_DELETE # Specific rights AllExtendedRights = 0x00000100 # ADS_RIGHT_DS_CONTROL_ACCESS ListObject = 0x00000080 # ADS_RIGHT_DS_LIST_OBJECT DeleteTree = 0x00000040 # ADS_RIGHT_DS_DELETE_TREE WriteProperties = 0x00000020 # ADS_RIGHT_DS_WRITE_PROP ReadProperties = 0x00000010 # ADS_RIGHT_DS_READ_PROP Self = 0x00000008 # ADS_RIGHT_DS_SELF ListChildObjects = 0x00000004 # ADS_RIGHT_ACTRL_DS_LIST DeleteChild = 0x00000002 # ADS_RIGHT_DS_DELETE_CHILD CreateChild = 0x00000001 # ADS_RIGHT_DS_CREATE_CHILD # Simple permissions enum # Simple permissions are combinaisons of extended permissions # https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2003/cc783530(v=ws.10)?redirectedfrom=MSDN class SIMPLE_PERMISSIONS(Enum): FullControl = 0xF01FF Modify = 0x0301BF ReadAndExecute = 0x0200A9 ReadAndWrite = 0x02019F Read = 0x20094 Write = 0x200BC # Mask ObjectType field enum # Possible values for the Mask field in object-specific ACE (permitting to specify extended rights in the ObjectType field for example) # Since these flags are the same for Allowed and Denied access, the same class will be used from 'ldaptypes' # https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-dtyp/c79a383c-2b3f-4655-abe7-dcbb7ce0cfbe class ALLOWED_OBJECT_ACE_MASK_FLAGS(Enum): ControlAccess = ldaptypes.ACCESS_ALLOWED_OBJECT_ACE.ADS_RIGHT_DS_CONTROL_ACCESS CreateChild = ldaptypes.ACCESS_ALLOWED_OBJECT_ACE.ADS_RIGHT_DS_CREATE_CHILD DeleteChild = ldaptypes.ACCESS_ALLOWED_OBJECT_ACE.ADS_RIGHT_DS_DELETE_CHILD ReadProperty = ldaptypes.ACCESS_ALLOWED_OBJECT_ACE.ADS_RIGHT_DS_READ_PROP WriteProperty = ldaptypes.ACCESS_ALLOWED_OBJECT_ACE.ADS_RIGHT_DS_WRITE_PROP Self = ldaptypes.ACCESS_ALLOWED_OBJECT_ACE.ADS_RIGHT_DS_SELF class CMEModule: """ Module to read and backup the Discretionary Access Control List of one or multiple objects. This module is essentially inspired from the dacledit.py script of Impacket that we have coauthored, @_nwodtuhs and me. It has been converted to an LDAPConnection session, and improvements on the filtering and the ability to specify multiple targets have been added. It could be interesting to implement the write/remove functions here, but a ldap3 session instead of a LDAPConnection one is required to write. """ name = "daclread" description = "Read and backup the Discretionary Access Control List of objects. Based on the work of @_nwodtuhs and @BlWasp_. Be carefull, this module cannot read the DACLS recursively, more explains in the options." supported_protocols = ["ldap"] opsec_safe = True multiple_hosts = False def __init__(self, context=None, module_options=None): self.context = context self.module_options = module_options def options(self, context, module_options): """ Be carefull, this module cannot read the DACLS recursively. For example, if an object has particular rights because it belongs to a group, the module will not be able to see it directly, you have to check the group rights manually. TARGET The objects that we want to read or backup the DACLs, sepcified by its SamAccountName TARGET_DN The object that we want to read or backup the DACL, specified by its DN (usefull to target the domain itself) PRINCIPAL The trustee that we want to filter on ACTION The action to realise on the DACL (read, backup) ACE_TYPE The type of ACE to read (Allowed or Denied) RIGHTS An interesting right to filter on ('FullControl', 'ResetPassword', 'WriteMembers', 'DCSync') RIGHTS_GUID A right GUID that specify a particular rights to filter on """ self.context = context if not module_options: context.log.fail("Select an option, example: -M daclread -o TARGET=Administrator ACTION=read") exit(1) if module_options and "TARGET" in module_options: if re.search(r"^(.+)\/([^\/]+)$", module_options["TARGET"]) is not None: try: self.target_file = open(module_options["TARGET"], "r") self.target_sAMAccountName = None except Exception as e: context.log.fail("The file doesn't exist or cannot be openned.") else: self.target_sAMAccountName = module_options["TARGET"] self.target_file = None self.target_DN = None self.target_SID = None if module_options and "TARGET_DN" in module_options: self.target_DN = module_options["TARGET_DN"] self.target_sAMAccountName = None self.target_file = None if module_options and "PRINCIPAL" in module_options: self.principal_sAMAccountName = module_options["PRINCIPAL"] else: self.principal_sAMAccountName = None self.principal_sid = None if module_options and "ACTION" in module_options: self.action = module_options["ACTION"] else: self.action = "read" if module_options and "ACE_TYPE" in module_options: self.ace_type = module_options["ACE_TYPE"] else: self.ace_type = "allowed" if module_options and "RIGHTS" in module_options: self.rights = module_options["RIGHTS"] else: self.rights = None if module_options and "RIGHTS_GUID" in module_options: self.rights_guid = module_options["RIGHTS_GUID"] else: self.rights_guid = None self.filename = None def on_login(self, context, connection): """ On a successful LDAP login we perform a search for the targets' SID, their Security Decriptors and the principal's SID if there is one specified """ context.log.highlight("Be carefull, this module cannot read the DACLS recursively.") self.baseDN = connection.ldapConnection._baseDN self.ldap_session = connection.ldapConnection # Searching for the principal SID if self.principal_sAMAccountName is not None: _lookedup_principal = self.principal_sAMAccountName try: self.principal_sid = format_sid( self.ldap_session.search( searchBase=self.baseDN, searchFilter="(sAMAccountName=%s)" % escape_filter_chars(_lookedup_principal), attributes=["objectSid"], )[0][ 1 ][0][ 1 ][0] ) context.log.highlight("Found principal SID to filter on: %s" % self.principal_sid) except Exception as e: context.log.fail("Principal SID not found in LDAP (%s)" % _lookedup_principal) exit(1) # Searching for the targets SID and their Security Decriptors # If there is only one target if (self.target_sAMAccountName or self.target_DN) and self.target_file is None: # Searching for target account with its security descriptor try: self.search_target_principal_security_descriptor(context, connection) # Extract security descriptor data self.target_principal_dn = self.target_principal[0] self.principal_raw_security_descriptor = str(self.target_principal[1][0][1][0]).encode("latin-1") self.principal_security_descriptor = ldaptypes.SR_SECURITY_DESCRIPTOR(data=self.principal_raw_security_descriptor) context.log.highlight("Target principal found in LDAP (%s)" % self.target_principal[0]) except Exception as e: context.log.fail("Target SID not found in LDAP (%s)" % self.target_sAMAccountName) exit(1) if self.action == "read": self.read(context) if self.action == "backup": self.backup(context) # If there are multiple targets else: targets = self.target_file.readlines() for target in targets: try: self.target_sAMAccountName = target.strip() # Searching for target account with its security descriptor self.search_target_principal_security_descriptor(context, connection) # Extract security descriptor data self.target_principal_dn = self.target_principal[0] self.principal_raw_security_descriptor = str(self.target_principal[1][0][1][0]).encode("latin-1") self.principal_security_descriptor = ldaptypes.SR_SECURITY_DESCRIPTOR(data=self.principal_raw_security_descriptor) context.log.highlight("Target principal found in LDAP (%s)" % self.target_sAMAccountName) except Exception as e: context.log.fail("Target SID not found in LDAP (%s)" % self.target_sAMAccountName) continue if self.action == "read": self.read(context) if self.action == "backup": self.backup(context) # Main read funtion # Prints the parsed DACL def read(self, context): parsed_dacl = self.parse_dacl(context, self.principal_security_descriptor["Dacl"]) self.print_parsed_dacl(context, parsed_dacl) return # Permits to export the DACL of the targets # This function is called before any writing action (write, remove or restore) def backup(self, context): backup = {} backup["sd"] = binascii.hexlify(self.principal_raw_security_descriptor).decode("latin-1") backup["dn"] = str(self.target_principal_dn) if not self.filename: self.filename = "dacledit-%s-%s.bak" % ( datetime.datetime.now().strftime("%Y%m%d-%H%M%S"), self.target_sAMAccountName, ) with codecs.open(self.filename, "w", "latin-1") as outfile: json.dump(backup, outfile) context.log.highlight("DACL backed up to %s", self.filename) self.filename = None # Attempts to retrieve the DACL in the Security Descriptor of the specified target def search_target_principal_security_descriptor(self, context, connection): _lookedup_principal = "" # Set SD flags to only query for DACL controls = security_descriptor_control(sdflags=0x04) if self.target_sAMAccountName is not None: _lookedup_principal = self.target_sAMAccountName target = self.ldap_session.search( searchBase=self.baseDN, searchFilter="(sAMAccountName=%s)" % escape_filter_chars(_lookedup_principal), attributes=["nTSecurityDescriptor"], searchControls=controls, ) if self.target_DN is not None: _lookedup_principal = self.target_DN target = self.ldap_session.search( searchBase=self.baseDN, searchFilter="(distinguishedName=%s)" % _lookedup_principal, attributes=["nTSecurityDescriptor"], searchControls=controls, ) try: self.target_principal = target[0] except Exception as e: context.log.fail("Principal not found in LDAP (%s), probably an LDAP session issue." % _lookedup_principal) exit(0) # Attempts to retieve the SID and Distinguisehd Name from the sAMAccountName # Not used for the moment # - samname : a sAMAccountName def get_user_info(self, context, samname): self.ldap_session.search( searchBase=self.baseDN, searchFilter="(sAMAccountName=%s)" % escape_filter_chars(samname), attributes=["objectSid"], ) try: dn = self.ldap_session.entries[0].entry_dn sid = format_sid(self.ldap_session.entries[0]["objectSid"].raw_values[0]) return dn, sid except Exception as e: context.log.fail("User not found in LDAP: %s" % samname) return False # Attempts to resolve a SID and return the corresponding samaccountname # - sid : the SID to resolve def resolveSID(self, context, sid): # Tries to resolve the SID from the well known SIDs if sid in WELL_KNOWN_SIDS.keys(): return WELL_KNOWN_SIDS[sid] # Tries to resolve the SID from the LDAP domain dump else: try: dn = self.ldap_session.search( searchBase=self.baseDN, searchFilter="(objectSid=%s)" % sid, attributes=["sAMAccountName"], )[ 0 ][0] samname = self.ldap_session.search( searchBase=self.baseDN, searchFilter="(objectSid=%s)" % sid, attributes=["sAMAccountName"], )[0][ 1 ][0][ 1 ][0] return samname except Exception as e: context.log.debug("SID not found in LDAP: %s" % sid) return "" # Parses a full DACL # - dacl : the DACL to parse, submitted in a Security Desciptor format def parse_dacl(self, context, dacl): parsed_dacl = [] context.log.debug("Parsing DACL") i = 0 for ace in dacl["Data"]: parsed_ace = self.parse_ace(context, ace) parsed_dacl.append(parsed_ace) i += 1 return parsed_dacl # Parses an access mask to extract the different values from a simple permission # https://stackoverflow.com/questions/28029872/retrieving-security-descriptor-and-getting-number-for-filesystemrights # - fsr : the access mask to parse def parse_perms(self, fsr): _perms = [] for PERM in SIMPLE_PERMISSIONS: if (fsr & PERM.value) == PERM.value: _perms.append(PERM.name) fsr = fsr & (not PERM.value) for PERM in ACCESS_MASK: if fsr & PERM.value: _perms.append(PERM.name) return _perms # Parses a specified ACE and extract the different values (Flags, Access Mask, Trustee, ObjectType, InheritedObjectType) # - ace : the ACE to parse def parse_ace(self, context, ace): # For the moment, only the Allowed and Denied Access ACE are supported if ace["TypeName"] in [ "ACCESS_ALLOWED_ACE", "ACCESS_ALLOWED_OBJECT_ACE", "ACCESS_DENIED_ACE", "ACCESS_DENIED_OBJECT_ACE", ]: parsed_ace = {} parsed_ace["ACE Type"] = ace["TypeName"] # Retrieves ACE's flags _ace_flags = [] for FLAG in ACE_FLAGS: if ace.hasFlag(FLAG.value): _ace_flags.append(FLAG.name) parsed_ace["ACE flags"] = ", ".join(_ace_flags) or "None" # For standard ACE # Extracts the access mask (by parsing the simple permissions) and the principal's SID if ace["TypeName"] in ["ACCESS_ALLOWED_ACE", "ACCESS_DENIED_ACE"]: parsed_ace["Access mask"] = "%s (0x%x)" % ( ", ".join(self.parse_perms(ace["Ace"]["Mask"]["Mask"])), ace["Ace"]["Mask"]["Mask"], ) parsed_ace["Trustee (SID)"] = "%s (%s)" % ( self.resolveSID(context, ace["Ace"]["Sid"].formatCanonical()) or "UNKNOWN", ace["Ace"]["Sid"].formatCanonical(), ) # For object-specific ACE elif ace["TypeName"] in [ "ACCESS_ALLOWED_OBJECT_ACE", "ACCESS_DENIED_OBJECT_ACE", ]: # Extracts the mask values. These values will indicate the ObjectType purpose _access_mask_flags = [] for FLAG in ALLOWED_OBJECT_ACE_MASK_FLAGS: if ace["Ace"]["Mask"].hasPriv(FLAG.value): _access_mask_flags.append(FLAG.name) parsed_ace["Access mask"] = ", ".join(_access_mask_flags) # Extracts the ACE flag values and the trusted SID _object_flags = [] for FLAG in OBJECT_ACE_FLAGS: if ace["Ace"].hasFlag(FLAG.value): _object_flags.append(FLAG.name) parsed_ace["Flags"] = ", ".join(_object_flags) or "None" # Extracts the ObjectType GUID values if ace["Ace"]["ObjectTypeLen"] != 0: obj_type = bin_to_string(ace["Ace"]["ObjectType"]).lower() try: parsed_ace["Object type (GUID)"] = "%s (%s)" % ( OBJECT_TYPES_GUID[obj_type], obj_type, ) except KeyError: parsed_ace["Object type (GUID)"] = "UNKNOWN (%s)" % obj_type # Extracts the InheritedObjectType GUID values if ace["Ace"]["InheritedObjectTypeLen"] != 0: inh_obj_type = bin_to_string(ace["Ace"]["InheritedObjectType"]).lower() try: parsed_ace["Inherited type (GUID)"] = "%s (%s)" % ( OBJECT_TYPES_GUID[inh_obj_type], inh_obj_type, ) except KeyError: parsed_ace["Inherited type (GUID)"] = "UNKNOWN (%s)" % inh_obj_type # Extract the Trustee SID (the object that has the right over the DACL bearer) parsed_ace["Trustee (SID)"] = "%s (%s)" % ( self.resolveSID(context, ace["Ace"]["Sid"].formatCanonical()) or "UNKNOWN", ace["Ace"]["Sid"].formatCanonical(), ) else: # If the ACE is not an access allowed context.log.debug("ACE Type (%s) unsupported for parsing yet, feel free to contribute" % ace["TypeName"]) parsed_ace = {} parsed_ace["ACE type"] = ace["TypeName"] _ace_flags = [] for FLAG in ACE_FLAGS: if ace.hasFlag(FLAG.value): _ace_flags.append(FLAG.name) parsed_ace["ACE flags"] = ", ".join(_ace_flags) or "None" parsed_ace["DEBUG"] = "ACE type not supported for parsing by dacleditor.py, feel free to contribute" return parsed_ace # Prints a full DACL by printing each parsed ACE # - parsed_dacl : a parsed DACL from parse_dacl() def print_parsed_dacl(self, context, parsed_dacl): context.log.debug("Printing parsed DACL") i = 0 # If a specific right or a specific GUID has been specified, only the ACE with this right will be printed # If an ACE type has been specified, only the ACE with this type will be specified # If a principal has been specified, only the ACE where he is the trustee will be printed for parsed_ace in parsed_dacl: print_ace = True # Filter on specific rights if self.rights is not None: try: if (self.rights == "FullControl") and (self.rights not in parsed_ace["Access mask"]): print_ace = False if (self.rights == "DCSync") and (("Object type (GUID)" not in parsed_ace) or (RIGHTS_GUID.DS_Replication_Get_Changes_All.value not in parsed_ace["Object type (GUID)"])): print_ace = False if (self.rights == "WriteMembers") and (("Object type (GUID)" not in parsed_ace) or (RIGHTS_GUID.WriteMembers.value not in parsed_ace["Object type (GUID)"])): print_ace = False if (self.rights == "ResetPassword") and (("Object type (GUID)" not in parsed_ace) or (RIGHTS_GUID.ResetPassword.value not in parsed_ace["Object type (GUID)"])): print_ace = False except Exception as e: context.log.fail("Error filtering ACE, probably because of ACE type unsupported for parsing yet (%s)" % e) # Filter on specific right GUID if self.rights_guid is not None: try: if ("Object type (GUID)" not in parsed_ace) or (self.rights_guid not in parsed_ace["Object type (GUID)"]): print_ace = False except Exception as e: context.log.fail("Error filtering ACE, probably because of ACE type unsupported for parsing yet (%s)" % e) # Filter on ACE type if self.ace_type == "allowed": try: if ("ACCESS_ALLOWED_OBJECT_ACE" not in parsed_ace["ACE Type"]) and ("ACCESS_ALLOWED_ACE" not in parsed_ace["ACE Type"]): print_ace = False except Exception as e: context.log.fail("Error filtering ACE, probably because of ACE type unsupported for parsing yet (%s)" % e) else: try: if ("ACCESS_DENIED_OBJECT_ACE" not in parsed_ace["ACE Type"]) and ("ACCESS_DENIED_ACE" not in parsed_ace["ACE Type"]): print_ace = False except Exception as e: context.log.fail("Error filtering ACE, probably because of ACE type unsupported for parsing yet (%s)" % e) # Filter on trusted principal if self.principal_sid is not None: try: if self.principal_sid not in parsed_ace["Trustee (SID)"]: print_ace = False except Exception as e: context.log.fail("Error filtering ACE, probably because of ACE type unsupported for parsing yet (%s)" % e) if print_ace: self.context.log.highlight("%-28s" % "ACE[%d] info" % i) self.print_parsed_ace(parsed_ace) i += 1 # Prints properly a parsed ACE # - parsed_ace : a parsed ACE from parse_ace() def print_parsed_ace(self, parsed_ace): elements_name = list(parsed_ace.keys()) for attribute in elements_name: self.context.log.highlight(" %-26s: %s" % (attribute, parsed_ace[attribute])) # Retrieves the GUIDs for the specified rights def build_guids_for_rights(self): _rights_guids = [] if self.rights_guid is not None: _rights_guids = [self.rights_guid] elif self.rights == "WriteMembers": _rights_guids = [RIGHTS_GUID.WriteMembers.value] elif self.rights == "ResetPassword": _rights_guids = [RIGHTS_GUID.ResetPassword.value] elif self.rights == "DCSync": _rights_guids = [ RIGHTS_GUID.DS_Replication_Get_Changes.value, RIGHTS_GUID.DS_Replication_Get_Changes_All.value, ] self.context.log.highlight("Built GUID: %s", _rights_guids) return _rights_guids