CVE-2019-15059 : Exploit Details and Defense Strategies

Liberty lisPBX 2.0-4 allows unauthorized remote access to configuration backup files, exposing sensitive PBX information.

Understanding CVE-2019-15059

What is CVE-2019-15059?

In Liberty lisPBX 2.0-4, attackers can retrieve configuration backup files without authentication, potentially compromising extension numbers, contacts, and passwords.

The Impact of CVE-2019-15059

Unauthorized access to configuration backup files poses a significant risk of exposing sensitive PBX data, leading to potential privacy breaches and unauthorized system modifications.

Technical Details of CVE-2019-15059

Vulnerability Description

The vulnerability in Liberty lisPBX 2.0-4 allows remote retrieval of configuration backup files (/backup/lispbx-CONF-YYYY-MM-DD.tar or /backup/lispbx-CDR-YYYY-MM-DD.tar) without authentication, granting access to critical PBX information.

Affected Systems and Versions

Product: Liberty lisPBX 2.0-4
Vendor: N/A
Version: N/A

Exploitation Mechanism

Attackers can exploit this vulnerability by directly accessing the backup files stored at specific paths without the need for authentication, potentially leading to unauthorized data extraction.

Mitigation and Prevention

Immediate Steps to Take

Restrict access to the backup files by implementing proper authentication mechanisms.
Regularly monitor access logs for any suspicious activities related to configuration backup file retrieval.

Long-Term Security Practices

Conduct regular security audits to identify and address vulnerabilities in the PBX system.
Educate users on the importance of secure data handling practices to prevent unauthorized access.

Patching and Updates

Apply patches or updates provided by Liberty lisPBX to address this vulnerability and enhance system security.