CVE-2023-0599 : Exploit Details and Defense Strategies

This CVE-2023-0599 involves a stored cross-site scripting vulnerability in Rapid7 Metasploit Pro versions 4.21.2 and lower. An authenticated attacker can exploit this vulnerability to execute arbitrary HTML and script code in the target browser against another Metasploit Pro user using a specially crafted request.

Understanding CVE-2023-0599

This section will delve into the details of CVE-2023-0599, including what it is, its impact, technical aspects, and mitigation strategies.

What is CVE-2023-0599?

The CVE-2023-0599 vulnerability pertains to a stored cross-site scripting issue in Rapid7 Metasploit Pro versions 4.21.2 and below. This flaw arises from a lack of JavaScript request string sanitization, allowing attackers to inject and execute malicious code within the context of a user's session.

The Impact of CVE-2023-0599

The impact of this vulnerability is significant as it enables an authenticated attacker to execute arbitrary HTML and script code in a target browser against another Metasploit Pro user. Given that most Metasploit Pro users typically have privileges equivalent to local administrators, the potential for harmful exploitation is concerning.

Technical Details of CVE-2023-0599

In-depth technical details provide a clearer understanding of how this vulnerability operates within affected systems and versions.

Vulnerability Description

The stored cross-site scripting vulnerability in Rapid7 Metasploit Pro versions 4.21.2 and lower arises due to the absence of proper JavaScript request string sanitization. This oversight allows attackers to inject and execute malicious code, posing a significant security risk to affected systems.

Affected Systems and Versions

Specifically, this vulnerability impacts Rapid7 Metasploit Pro versions 4.21.2 and earlier. Users utilizing these versions are at risk of exploitation by malicious actors seeking to execute unauthorized code within the application's environment.

Exploitation Mechanism

An authenticated attacker can exploit this vulnerability by submitting a specially crafted request that includes malicious JavaScript code. Upon successful execution, the attacker can manipulate the target user's browser to execute arbitrary code within the context of their session.

Mitigation and Prevention

To address CVE-2023-0599 and enhance security posture, immediate steps, best practices, and patching guidance should be implemented.

Immediate Steps to Take

Users of Rapid7 Metasploit Pro versions 4.21.2 and below should apply security updates promptly to mitigate the risk of exploitation. Additionally, limiting user privileges and monitoring for suspicious activities can bolster defense against potential attacks leveraging this vulnerability.

Long-Term Security Practices

Establishing robust web application security practices, such as input validation, output encoding, and regular security assessments, helps prevent cross-site scripting vulnerabilities like CVE-2023-0599. Training users on secure coding practices is also essential to minimize the introduction of such vulnerabilities.

Patching and Updates

Rapid7 has released updates to address the stored cross-site scripting vulnerability in Metasploit Pro versions. Users are advised to refer to the provided release notes and apply the necessary patches to safeguard their systems from exploitation and ensure ongoing security resilience.