CVE-2023-30958 : Security Advisory and Response

A security vulnerability was identified in Foundry Frontend, a product by Palantir, which allowed potential malicious actors to execute DOM XSS attacks when Foundry's Content Security Policy (CSP) was bypassed. This vulnerability was patched in version 6.225.0 of Foundry Frontend.

Understanding CVE-2023-30958

This section delves into the details of CVE-2023-30958, outlining the vulnerability, its impact, affected systems, and mitigation strategies.

What is CVE-2023-30958?

The vulnerability in Foundry Frontend allowed for potential DOM XSS attacks when the Content Security Policy (CSP) was bypassed, enabling malicious scripts to manipulate the Document Object Model (DOM) on the client-side.

The Impact of CVE-2023-30958

The impact of CVE-2023-30958 is significant as it allows adversaries to inject malicious scripts into vulnerable web applications, bypass server-side filtering, and launch XSS attacks post-page loading.

Technical Details of CVE-2023-30958

In this section, we explore the technical aspects of the CVE-2023-30958 vulnerability, including its description, affected systems, and how exploitation can occur.

Vulnerability Description

The vulnerability arises from a lack of proper validation or output encoding in Foundry Frontend, enabling malicious script injection post-page load, leading to potential XSS attacks.

Affected Systems and Versions

The affected system is 'com.palantir.foundry:foundry-frontend', with versions less than 6.225.0 impacted by this vulnerability.

Exploitation Mechanism

Exploitation of this vulnerability occurs when attackers bypass Foundry's CSP, allowing them to inject malicious scripts to manipulate the DOM and conduct XSS attacks.

Mitigation and Prevention

This section focuses on the steps to mitigate and prevent exploitation of CVE-2023-30958, enhancing overall system security.

Immediate Steps to Take

Users should update their Foundry Frontend to version 6.225.0 or higher to eliminate the vulnerability and safeguard against potential XSS attacks.

Long-Term Security Practices

Implementing robust CSP policies, input validation mechanisms, and output encoding practices can enhance long-term security posture against XSS vulnerabilities.

Patching and Updates

Regularly updating software components, monitoring CSP configurations, and staying informed about security patches are essential in maintaining a secure environment.