CVE-2020-14031 Explained : Impact and Mitigation

An issue was discovered in Ozeki NG SMS Gateway through 4.17.6 where the outbox functionality of the TXT File module can be exploited to delete most files in a folder, posing a significant security risk.

Understanding CVE-2020-14031

This CVE identifies a vulnerability in Ozeki NG SMS Gateway that allows unauthorized deletion of files through the outbox feature.

What is CVE-2020-14031?

The vulnerability in Ozeki NG SMS Gateway enables attackers to delete files in a folder using the TXT File module's outbox functionality. As the product typically operates with elevated privileges, it can delete numerous files, except those actively in use or with specific security attributes.

The Impact of CVE-2020-14031

The exploitation of this vulnerability can lead to severe data loss and system instability. Attackers can potentially delete critical files, disrupting operations and compromising system integrity.

Technical Details of CVE-2020-14031

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability in Ozeki NG SMS Gateway allows unauthorized users to delete files in a folder using the outbox feature of the TXT File module.

Affected Systems and Versions

Product: Ozeki NG SMS Gateway through version 4.17.6

Exploitation Mechanism

Attackers can exploit the outbox functionality of the TXT File module to delete files in a folder.

Mitigation and Prevention

Protecting systems from CVE-2020-14031 is crucial to prevent unauthorized file deletions and maintain system security.

Immediate Steps to Take

Disable or restrict access to the affected functionality if not essential for operations.
Regularly monitor file systems for unauthorized deletions.
Implement least privilege access to limit the impact of potential attacks.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify vulnerabilities.
Educate users on secure file management practices to prevent inadvertent data loss.

Patching and Updates

Apply patches or updates provided by the vendor to address the vulnerability and enhance system security.