Reflected XSS in WebControl CMS v3.5

Executive Summary

This vulnerability is a Cross-Site Scripting (XSS) issue found in Intermark IT's WebControl CMS version 3.5. It occurs because the application improperly handles the 'urlDestino' parameter in the '/portal.do' endpoint, allowing an attacker to inject malicious JavaScript code or a dynamic iframe into a victim's browser.

By exploiting this vulnerability, an attacker can execute arbitrary scripts in the context of the victim's browser session.

Useful 0 Not Useful 0

Detection Guidance

This vulnerability can be detected by monitoring HTTP requests to the '/portal.do' endpoint and inspecting the 'urlDestino' parameter for suspicious or malicious JavaScript code or iframe injections.

You can use network traffic analysis tools or web server logs to identify requests containing potentially malicious payloads in the 'urlDestino' parameter.

Example commands to detect such attempts include using grep on web server logs:

• grep -i 'urlDestino=' /var/log/apache2/access.log
• grep -i 'urlDestino=.*<script' /var/log/apache2/access.log
• Using a web proxy or interception tool like Burp Suite to capture and analyze requests to '/portal.do' for malicious payloads in 'urlDestino'.

Useful 0 Not Useful 0

Impact Analysis

This vulnerability can have several impacts on users and systems:

• Stealing sensitive user data such as session cookies.
• Displaying phishing interfaces to trick users into revealing confidential information.
• Performing unauthorized actions on behalf of the user without their consent.

Useful 0 Not Useful 0

Compliance Impact

The Cross-Site Scripting (XSS) vulnerability in Intermark IT's WebControl CMS v3.5 allows attackers to execute malicious JavaScript or inject dynamic iframes, which can lead to theft of sensitive user data such as session cookies, phishing, or unauthorized actions on behalf of users.

Such exploitation can compromise the confidentiality and integrity of user data, potentially violating data protection regulations like GDPR and HIPAA that require safeguarding personal and sensitive information against unauthorized access and breaches.

Therefore, this vulnerability poses a risk to compliance with these standards by exposing sensitive data to attackers and enabling unauthorized actions, which may lead to regulatory penalties or legal consequences if exploited.

Useful 0 Not Useful 0

Mitigation Strategies

Immediate mitigation steps include validating and sanitizing the 'urlDestino' parameter on the server side to prevent injection of malicious scripts or iframes.

Implement input validation to allow only safe URLs or expected values in the 'urlDestino' parameter.

If possible, apply web application firewall (WAF) rules to block requests containing suspicious script tags or iframe injections targeting '/portal.do'.

Educate users about the risks of clicking on suspicious URLs and monitor for unusual activity that may indicate exploitation attempts.

Useful 0 Not Useful 0