CVE-2023-29004 : Exploit Details and Defense Strategies

A detailed overview of the Path Traversal Vulnerability in hap-wi/roxy-wi and its impact.

Understanding CVE-2023-29004

This section provides insights into the nature of CVE-2023-29004.

What is CVE-2023-29004?

hap-wi/roxy-wi, a web interface for managing Haproxy, Nginx, Apache, and Keepalived servers, contains a Path Traversal vulnerability in version 6.3.9.0. The vulnerability arises from inadequate validation of user input in the config_file_name parameter, allowing unauthorized access to arbitrary files on the server.

The Impact of CVE-2023-29004

Successful exploitation of this vulnerability enables attackers with user-level privileges to read sensitive data from files on the server, potentially leading to unauthorized access and data exposure.

Technical Details of CVE-2023-29004

Insights into the vulnerability's technical aspects.

Vulnerability Description

The vulnerability lies in the get_config function of the /app/modules/config/config.py file, enabling attackers to traverse directory paths and access files beyond intended boundaries.

Affected Systems and Versions

Vendor: hap-wi
Product: roxy-wi
Affected Version: <= 6.3.9.0

Exploitation Mechanism

By sending a crafted HTTP request to /app/options.py with a malicious config_file_name parameter, attackers can retrieve sensitive data from files located on the server.

Mitigation and Prevention

Guidelines to address and prevent CVE-2023-29004.

Immediate Steps to Take

Update roxy-wi to a patched version that addresses the Path Traversal vulnerability.
Implement access controls and input validation to restrict unauthorized file access.

Long-Term Security Practices

Regularly monitor and audit file access permissions on the server.
Conduct security assessments to identify and mitigate similar vulnerabilities.

Patching and Updates

Stay informed about security advisories from hap-wi and promptly apply updates to eliminate known vulnerabilities.