ACLToolkit – The Ultimate ACL Abuse Toolkit Guide

In the intricate world of cyber security, managing and understanding access control lists (ACLs) becomes paramount. ‘acltoolkit’ emerges as a vital tool, offering powerful techniques to exploit and manipulate ACLs.

Dive into our comprehensive guide to grasp the nuances of ACL abuse and harness the full potential of the acltoolkit, ensuring you stay steps ahead in the ever-evolving realm of digital security.

acltoolkit is an ACL abuse swiss-army knife. It implements multiple ACL abuses.

Table Of Contents

• acltoolkit
  • Table of Contents
  • Installation
  • Usage
  • Commands
    • get-objectacl
    • set-objectowner
    • give-genericall
    • give-dcsync
    • add-groupmember
    • set-logonscript

Installation

pip install acltoolkit-ad

or

git clone https://github.com/zblurx/acltoolkit.git
cd acltoolkit
make

Usage

usage: acltoolkit [-h] [-debug] [-hashes LMHASH:NTHASH] [-no-pass] [-k] [-dc-ip ip address] [-scheme ldap scheme]
                  target {get-objectacl,set-objectowner,give-genericall,give-dcsync,add-groupmember,set-logonscript} ...

ACL abuse swiss-army knife

positional arguments:
  target                [[domain/]username[:password]@]<target name or address>
  {get-objectacl,set-objectowner,give-genericall,give-dcsync,add-groupmember,set-logonscript}
                        Action
    get-objectacl       Get Object ACL
    set-objectowner     Modify Object Owner
    give-genericall     Grant an object GENERIC ALL on a targeted object
    give-dcsync         Grant an object DCSync capabilities on the domain
    add-groupmember     Add Member to Group
    set-logonscript     Change Logon Sript of User

options:
  -h, --help            show this help message and exit
  -debug                Turn DEBUG output ON
  -no-pass              don't ask for password (useful for -k)
  -k                    Use Kerberos authentication. Grabs credentials from ccache file (KRB5CCNAME) based on target parameters. If valid credentials cannot be found, it will use the ones specified in the
                        command line
  -dc-ip ip address     IP Address of the domain controller. If omitted it will use the domain part (FQDN) specified in the target parameter
  -scheme ldap scheme

authentication:
  -hashes LMHASH:NTHASH
                        NTLM hashes, format is LMHASH:NTHASH

Commands

Get-Objectacl

$ acltoolkit get-objectacl -h
usage: acltoolkit target get-objectacl [-h] [-object object] [-all]

options:
  -h, --help      show this help message and exit
  -object object  Dump ACL for <object>. Parameter can be a sAMAccountName, a name, a DN or an objectSid
  -all            List every ACE of the object, even the less-interesting ones

The get-objectacl will take a sAMAccountName, a name, a DN or an objectSid as input with -object and will list Sid, Name, DN, Class, adminCount, LogonScript configured, Primary Group, Owner and DACL of it.

If no parameter supplied, will list informations about the account used to authenticate.

$ acltoolkit waza.local/jsmith:Password#123@192.168.56.112 get-objectacl
Sid                 : S-1-5-21-267175082-2660600898-836655089-1103
Name                : waza\John Smith
DN                  : CN=John Smith,CN=Users,DC=waza,DC=local
Class               : top, person, organizationalPerson, user
adminCount          : False

Logon Script
  scriptPath        : \\WAZZAAAAAA\OCD\test.bat
  msTSInitialProgram: \\WAZZAAAAAA\OCD\test.bat

PrimaryGroup
  Sid               : S-1-5-21-267175082-2660600898-836655089-513
  Name              : waza\Domain Users
  DN                : CN=Domain Users,OU=Builtin Groups,DC=waza,DC=local

[...]

OwnerGroup
  Sid               : S-1-5-21-267175082-2660600898-836655089-512
  Name              : waza\Domain Admins

Dacl
  ObjectSid         : S-1-1-0
  Name              : Everyone
  AceType           : ACCESS_ALLOWED_OBJECT_ACE
  AccessMask        : 256
  ADRights          : EXTENDED_RIGHTS
  IsInherited       : False
  ObjectAceType     : User-Change-Password

[...]

  ObjectSid         : S-1-5-32-544
  Name              : BUILTIN\Administrator
  AceType           : ACCESS_ALLOWED_ACE
  AccessMask        : 983485
  ADRights          : WRITE_OWNER, WRITE_DACL, GENERIC_READ, DELETE, EXTENDED_RIGHTS, WRITE_PROPERTY, SELF, CREATE_CHILD
  IsInherited       : True

Set-Objectowner

$ acltoolkit set-objectowner -h
usage: acltoolkit target set-objectowner [-h] -target-sid target_sid [-owner-sid owner_sid]

options:
  -h, --help            show this help message and exit
  -target-sid target_sid
                        Object Sid targeted
  -owner-sid owner_sid  New Owner Sid

The set-objectowner will take as input a target sid and an owner sid, and will change the owner of the target object.

Give-Genericall

$ acltoolkit give-genericall -h
usage: acltoolkit target give-genericall [-h] -target-sid target_sid [-granted-sid owner_sid]

options:
  -h, --help            show this help message and exit
  -target-sid target_sid
                        Object Sid targeted
  -granted-sid owner_sid
                        Object Sid granted GENERIC_ALL

The give-genericall will take as input a target sid and a granted sid, and will change give GENERIC_ALL DACL to the granted SID to the target object.

Give-Dcsync

$ acltoolkit give-dcsync -h
usage: acltoolkit target give-dcsync [-h] [-granted-sid owner_sid]

options:
  -h, --help            show this help message and exit
  -granted-sid owner_sid
                        Object Sid granted DCSync capabilities

The give-dcsync will take as input a granted sid, and will change give DCSync capabilities to the granted SID.

Add-Groupmember

$ acltoolkit add-groupmember -h
usage: acltoolkit target add-groupmember [-h] [-user user] -group group

options:
  -h, --help    show this help message and exit
  -user user    User added to a group
  -group group  Group where the user will be added

The add-groupmember will take as input a user sAMAccountName and a group sAMAccountName, and will add the user to the group

Set-Logonscript

$ acltoolkit set-logonscript -h
usage: acltoolkit target set-logonscript [-h] -target-sid target_sid -script-path script_path [-logonscript-type logonscript_type]

options:
  -h, --help            show this help message and exit
  -target-sid target_sid
                        Object Sid of targeted user
  -script-path script_path
                        Script path to set for the targeted user
  -logonscript-type logonscript_type
                        Logon Script variable to change (default is scriptPath)

The set-logonscript will take as input a target sid and a script path, and will the the Logon Script path of the targeted user to the script path specified.