CVE-2017-6539 : Exploit Details and Defense Strategies

Webpagetest 3.0 version contains multiple Cross-Site Scripting (XSS) vulnerabilities due to inadequate user data filtering.

Understanding CVE-2017-6539

What is CVE-2017-6539?

The CVE-2017-6539 vulnerability refers to XSS issues in webpagetest 3.0, allowing attackers to execute malicious code in a browser within the compromised website's context.

The Impact of CVE-2017-6539

Exploiting these vulnerabilities could enable attackers to run arbitrary HTML and script code, posing a significant risk to the security and integrity of the affected website.

Technical Details of CVE-2017-6539

Vulnerability Description

The security flaw arises from insufficient filtration of user-supplied data (such as benchmark and time) passed to the webpagetest-master/www/benchmarks/delta.php URL.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: Not applicable

Exploitation Mechanism

Attackers can exploit the weaknesses by injecting malicious code into the website, potentially leading to the execution of arbitrary scripts and HTML content in users' browsers.

Mitigation and Prevention

Immediate Steps to Take

Implement input validation and output encoding to prevent XSS attacks.
Regularly update webpagetest to the latest secure version.

Long-Term Security Practices

Conduct regular security audits and penetration testing to identify and address vulnerabilities.
Educate developers on secure coding practices to mitigate XSS risks.

Patching and Updates

Apply security patches provided by the webpagetest project to address the XSS vulnerabilities.