CVE-2017-7249 : Exploit Details and Defense Strategies

This CVE-2017-7249 article provides insights into a Cross-Site Scripting (XSS) vulnerability found in Gazelle before March 19, 2017.

Understanding CVE-2017-7249

What is CVE-2017-7249?

Multiple instances of Cross-Site Scripting (XSS) were identified in Gazelle due to inadequate filtration of user-provided data, enabling attackers to execute malicious code within a compromised website's context.

The Impact of CVE-2017-7249

The vulnerability allows attackers to inject arbitrary HTML and script code into a web browser, potentially leading to unauthorized access, data theft, and other malicious activities.

Technical Details of CVE-2017-7249

Vulnerability Description

The XSS vulnerabilities in Gazelle stem from insufficient filtration of user-supplied data (action, userid) passed to the 'Gazelle-master/sections/tools/data/ocelot_info.php' URL.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: Not applicable

Exploitation Mechanism

Attackers exploit the flaw by injecting malicious code into the vulnerable website's context, allowing them to execute unauthorized actions within the compromised environment.

Mitigation and Prevention

Immediate Steps to Take

Implement input validation and output encoding to prevent XSS attacks.
Regularly update Gazelle to the latest version to patch known vulnerabilities.

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

Stay informed about security updates and patches released by Gazelle developers.