CVE-2023-6723 : Security Advisory and Response

This CVE, assigned by INCIBE, involves an unrestricted file upload vulnerability in Repox, potentially leading to a full system compromise. The vulnerability was published on December 13, 2023, with a base severity score of 10.

Understanding CVE-2023-6723

This section delves deeper into the nature of the vulnerability and its potential impact on systems running affected versions of Repox.

What is CVE-2023-6723?

The CVE-2023-6723 vulnerability in Repox enables threat actors to upload malicious files through the transforamationfileupload function due to inadequate file type validation controls.

The Impact of CVE-2023-6723

The impact of this vulnerability is severe, with a CVSS v3.1 base score of 10, indicating a critical threat level. If exploited, it could result in high impacts on confidentiality, integrity, and availability of the affected systems.

Technical Details of CVE-2023-6723

In this section, we will explore the technical aspects of the vulnerability, including its description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability allows attackers to upload malicious files to Repox systems through the transforamationfileupload function, leading to a full system compromise due to the lack of proper file type validation controls.

Affected Systems and Versions

Repox versions up to and including 2.3.7 are impacted by this vulnerability, with version 0 being specifically affected.

Exploitation Mechanism

Threat actors can exploit this vulnerability by uploading malicious files using the transforamationfileupload function, bypassing proper file type validation controls and potentially compromising the entire system.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-6723, immediate steps and long-term security practices should be implemented to enhance system security and protect against potential threats.

Immediate Steps to Take

Implementing strong access controls, monitoring file uploads, and restricting upload permissions can help mitigate the risk of exploitation until a patch or solution is made available.

Long-Term Security Practices

Regular security assessments, keeping software up to date, and educating users on safe file upload practices are essential long-term security measures to prevent similar vulnerabilities in the future.

Patching and Updates

As of the publication of this CVE, there is no reported solution available. It is crucial to monitor official sources for updates, patches, or workarounds provided by the vendor to address the vulnerability effectively.