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Fix CollectAllProperties flag and clean up reserved attributes #67

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Aug 16, 2023
Merged

Fix CollectAllProperties flag and clean up reserved attributes #67

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32 changes: 14 additions & 18 deletions src/CommonLib/Processors/LDAPPropertyProcessor.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -7,25 +7,19 @@
using System.Security.Principal;
using System.Threading.Tasks;
using SharpHoundCommonLib.Enums;
using SharpHoundCommonLib.LDAPQueries;
using SharpHoundCommonLib.OutputTypes;

namespace SharpHoundCommonLib.Processors
{
public class LDAPPropertyProcessor
{
private static readonly string[] ReservedAttributes =
{
"pwdlastset", "lastlogon", "lastlogontimestamp", "objectsid",
"sidhistory", "useraccountcontrol", "operatingsystem",
"operatingsystemservicepack", "serviceprincipalname", "displayname", "mail", "title",
"homedirectory", "description", "admincount", "userpassword", "gpcfilesyspath", "objectclass",
"msds-behavior-version", "objectguid", "name", "gpoptions", "msds-allowedtodelegateto",
"msDS-allowedtoactonbehalfofotheridentity", "displayname",
"sidhistory", "samaccountname", "samaccounttype", "objectsid", "objectguid", "objectclass",
"msds-groupmsamembership",
"distinguishedname", "memberof", "logonhours", "ntsecuritydescriptor", "dsasignature", "repluptodatevector",
"member", "whenCreated"
};
private static readonly string[] ReservedAttributes = CommonProperties.TypeResolutionProps
.Concat(CommonProperties.BaseQueryProps).Concat(CommonProperties.GroupResolutionProps)
.Concat(CommonProperties.ComputerMethodProps).Concat(CommonProperties.ACLProps)
.Concat(CommonProperties.ObjectPropsProps).Concat(CommonProperties.ContainerProps)
.Concat(CommonProperties.SPNTargetProps).Concat(CommonProperties.DomainTrustProps)
.Concat(CommonProperties.GPOLocalGroupProps).ToArray();

private readonly ILDAPUtils _utils;

Expand Down Expand Up @@ -404,12 +398,11 @@ public async Task<ComputerProperties> ReadComputerProperties(ISearchResultEntry
/// <param name="entry"></param>
public Dictionary<string, object> ParseAllProperties(ISearchResultEntry entry)
{
var flag = IsTextUnicodeFlags.IS_TEXT_UNICODE_STATISTICS;
var props = new Dictionary<string, object>();

foreach (var property in entry.PropertyNames())
{
if (ReservedAttributes.Contains(property))
if (ReservedAttributes.Contains(property, StringComparer.OrdinalIgnoreCase))
continue;

var collCount = entry.PropCount(property);
Expand All @@ -420,8 +413,7 @@ public Dictionary<string, object> ParseAllProperties(ISearchResultEntry entry)
{
var testBytes = entry.GetByteProperty(property);

if (testBytes == null || testBytes.Length == 0 ||
!IsTextUnicode(testBytes, testBytes.Length, ref flag)) continue;
if (testBytes == null || testBytes.Length == 0) continue;

var testString = entry.GetProperty(property);

Expand All @@ -434,7 +426,7 @@ public Dictionary<string, object> ParseAllProperties(ISearchResultEntry entry)
else
{
var arrBytes = entry.GetByteArrayProperty(property);
if (arrBytes.Length == 0 || !IsTextUnicode(arrBytes[0], arrBytes[0].Length, ref flag))
if (arrBytes.Length == 0)
continue;

var arr = entry.GetArrayProperty(property);
Expand All @@ -461,6 +453,10 @@ private static object BestGuessConvert(string property)
//This string corresponds to the max int, and is usually set in accountexpires
if (property == "9223372036854775807") return -1;

//Try parsing as an int
if (int.TryParse(property, out var num)) return num;

//Just return the property as a string
return property;
}

Expand Down
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