CVE-2017-7335 : What You Need to Know

Fortinet FortiWLC versions 6.1-x, 7.0-x, and 8.x are vulnerable to Cross-Site Scripting (XSS) attacks through unsanitized parameters in HTTP POST requests.

Understanding CVE-2017-7335

This CVE involves a security vulnerability in Fortinet FortiWLC that allows authenticated users to inject arbitrary web scripts or HTML.

What is CVE-2017-7335?

The Fortinet FortiWLC versions 6.1-x, 7.0-x, and 8.x are susceptible to Cross-Site Scripting (XSS) due to unsanitized parameters in specific HTTP POST requests.

The Impact of CVE-2017-7335

This vulnerability enables authenticated users to execute XSS attacks, potentially leading to unauthorized data access, manipulation, or other malicious activities.

Technical Details of CVE-2017-7335

Fortinet FortiWLC versions 6.1-x, 7.0-x, and 8.x are affected by a Cross-Site Scripting (XSS) vulnerability.

Vulnerability Description

The vulnerability allows authenticated users to inject arbitrary web scripts or HTML via unsanitized parameters "refresh" and "branchtotable" in HTTP POST requests.

Affected Systems and Versions

Fortinet FortiWLC 6.1-x (6.1-2, 6.1-4, 6.1-5)
Fortinet FortiWLC 7.0-x (7.0-7, 7.0-8, 7.0-9, 7.0-10)
Fortinet FortiWLC 8.x (8.0, 8.1, 8.2, 8.3.0-8.3.2)

Exploitation Mechanism

The vulnerability is exploited by leveraging the unsanitized parameters "refresh" and "branchtotable" in HTTP POST requests.

Mitigation and Prevention

Immediate Steps to Take:

Apply vendor-provided patches or updates promptly.
Monitor and restrict user input to prevent malicious script injections. Long-Term Security Practices:
Regularly update and patch software to address known vulnerabilities.
Implement input validation mechanisms to sanitize user inputs effectively.
Conduct security training for users to raise awareness about XSS risks.
Employ web application firewalls to filter and block malicious traffic.
Stay informed about security advisories and best practices to enhance overall security posture.

Patching and Updates

Ensure that Fortinet FortiWLC versions 6.1-x, 7.0-x, and 8.x are updated with the latest patches to mitigate the XSS vulnerability.