CVE-2023-39108 : Security Advisory and Response

A Server-Side Request Forgery vulnerability was found in rconfig v3.9.4, impacting the doDiff function of /classes/compareClass.php. This article provides insights into the vulnerability and its implications.

Understanding CVE-2023-39108

This section delves into the details of the CVE-2023-39108 vulnerability in rconfig v3.9.4.

What is CVE-2023-39108?

The CVE-2023-39108 is a Server-Side Request Forgery (SSRF) vulnerability in rconfig v3.9.4, specifically in the path_b parameter of the doDiff function in /classes/compareClass.php. This flaw enables authenticated attackers to send arbitrary requests using maliciously crafted URLs.

The Impact of CVE-2023-39108

The vulnerability allows threat actors with authenticated access to the application to perform unauthorized actions through the manipulation of URLs. This could result in sensitive data exposure, unauthorized data modification, or further network exploitation.

Technical Details of CVE-2023-39108

This section explores the technical aspects of CVE-2023-39108, including the vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

rconfig v3.9.4 is susceptible to an SSRF vulnerability due to insufficient validation of user-supplied input in the path_b parameter, leading to unauthorized request execution.

Affected Systems and Versions

The SSRF flaw impacts all versions of rconfig v3.9.4, allowing authenticated attackers to exploit the vulnerability.

Exploitation Mechanism

By injecting manipulated URLs into the path_b parameter of the doDiff function in /classes/compareClass.php, attackers can trigger unauthorized requests and potentially compromise the application.

Mitigation and Prevention

In this section, we discuss the necessary steps to mitigate the risks posed by CVE-2023-39108 and prevent similar vulnerabilities in the future.

Immediate Steps to Take

Update rconfig to the latest version to patch the SSRF vulnerability.
Implement strict input validation to prevent malicious input affecting the application.

Long-Term Security Practices

Regularly monitor and audit application logs for suspicious activities.
Conduct security training for developers to enhance awareness of secure coding practices.

Patching and Updates

Stay informed about security updates from rconfig and promptly apply patches to address known vulnerabilities.