CVE-2018-14504 : Exploit Details and Defense Strategies

In MantisBT 2.x through 2.15.0, a cross-site scripting (XSS) vulnerability exists in the manage_filter_edit_page.php file, allowing the execution of arbitrary code on the Edit Filter page.

Understanding CVE-2018-14504

This CVE entry describes a security vulnerability in MantisBT version 2.x through 2.15.0 that enables the execution of arbitrary code through a crafted filter name.

What is CVE-2018-14504?

This vulnerability in MantisBT allows for a cross-site scripting (XSS) attack on the Edit Filter page, potentially leading to the execution of malicious code when a specially crafted filter name is displayed.

The Impact of CVE-2018-14504

The vulnerability could be exploited by an attacker to execute arbitrary code within the context of the user's browser, leading to potential data theft, unauthorized actions, or further compromise of the system.

Technical Details of CVE-2018-14504

This section provides more in-depth technical details about the vulnerability.

Vulnerability Description

The issue resides in the manage_filter_edit_page.php file in MantisBT 2.x through 2.15.0, allowing for a cross-site scripting (XSS) attack that can execute arbitrary code.

Affected Systems and Versions

Product: MantisBT
Versions: 2.x through 2.15.0

Exploitation Mechanism

The vulnerability can be exploited by displaying a filter with a specially crafted name, such as 'foobar" onclick="alert(1)'. If Content Security Policy (CSP) settings permit, the malicious code can be executed.

Mitigation and Prevention

Protecting systems from CVE-2018-14504 involves immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by MantisBT promptly.
Review and adjust Content Security Policy (CSP) settings to mitigate XSS risks.
Educate users about the risks of executing code from untrusted sources.

Long-Term Security Practices

Regularly update MantisBT to the latest version to address security vulnerabilities.
Implement web application firewalls (WAFs) to filter and monitor HTTP traffic for potential attacks.

Patching and Updates

Stay informed about security advisories from MantisBT and apply patches as soon as they are released to address known vulnerabilities.